연구성과로 돌아가기
2022 연구성과 (209 / 280)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Article | Prognostic factors in patients hospitalized with community-acquired aspiration pneumonia | Introduction: Patients with aspiration pneumonia (AP) exhibit higher mortality than those with non-AP. However, data regarding predictors of short-term prognosis in patients with community-acquired AP are limited. Methods: Patients hospitalized with community-acquired pneumonia (CAP) were retrospectively classified into aspiration pneumonia (AP) and non-AP groups. The AP patients were further divided into nonsurvivors and survivors by 30-day mortality, and various clinical variables were compared between the groups. Results: Of 1249 CAP patients, 254 (20.3%) were classified into the AP group, of whom 76 patients (29.9%) died within 30 days. CURB-65, pneumonia severity index (PSI), and Infectious Diseases Society of America/American Thoracic Society criteria for severe CAP (SCAP) showed only modest prognostic performance for the prediction of 30-day mortality (c-statistics, 0.635, 0.647, and 0.681, respectively). Along with the PSI and SCAP, Eastern Cooperative Oncology Group performance status (ECOG-PS) and blood biomarkers, including, N-terminal of prohormone brain natriuretic peptide (NT-proBNP) and albumin, were independent predictors of 30-day mortality. In models based on clinical prediction rules, including CURB-65, PSI, and SCAP, the addition of ECOG-PS further improved their c-statistics compared to the clinical prediction rules alone. In the four combinations based on SCAP, ECOG-PS, and two blood biomarkers (NT-proBNP and albumin), the c-statistics further increased to reach approximately 0.8. Conclusions: CURB-65, PSI, and SCAP exhibited only modest discriminatory power in predicting the 30-day mortality of patients with community-acquired AP. The addition of performance status and blood biomarkers, including NT-proBNP and albumin, further increased prognostic performance, showing good predictive accuracy in the SCAP-based model. | Seo, Hyewon; Cha, Seung-Ick; Lee, Won Kee; Park, Ji-Eun; Choi, Sun Ha; Lee, Yong-Hoon; Yoo, Seung-Soo; Lee, Shin-Yup; Lee, Jaehee; Kim, Chang-Ho; Park, Jae-Yong | Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Med Res Collaborat Ctr, Biostat, Daegu, South Korea | Lee, You/T-6086-2019; Lee, Jun Young/CAI-2335-2022; Lee, Jaehee/S-1697-2018; Choi, Sun Ha/HPD-7234-2023 | 55612130200; 35227126400; 22953484700; 57195437358; 57199723585; 57199022948; 56479781600; 49863712700; 13805476000; 7409873555; 58360293800 | sicha@knu.ac.kr; | JOURNAL OF INFECTION AND CHEMOTHERAPY | J INFECT CHEMOTHER | 1341-321X | 1437-7780 | 28 | 1 | SCIE | INFECTIOUS DISEASES;PHARMACOLOGY & PHARMACY | 2022 | 2.2 | 74.6 | 0.49 | 2025-06-25 | 4 | 4 | Aspiration pneumonia; Community-acquired infections; Mortality; Prognosis | BRAIN NATRIURETIC PEPTIDE; ELDERLY-PATIENTS; RISK-FACTORS; MORTALITY; SEVERITY; PERFORMANCE; ADULTS; CARE; MULTICENTER; PREDICTION | Aspiration pneumonia; Community-acquired infections; Mortality; Prognosis | Community-Acquired Infections; Humans; Pneumonia; Pneumonia, Aspiration; Prognosis; Retrospective Studies; Severity of Illness Index; albumin; antibiotic agent; brain natriuretic peptide; C reactive protein; creatinine; hemoglobin; nitrogen; procalcitonin; sodium; troponin I; urea; aged; albumin blood level; american thoracic society criteria for severe cap; antibiotic therapy; Article; aspiration pneumonia; clinical decision rule; community acquired pneumonia; controlled study; creatinine blood level; CURB-65 score; disease marker; ECOG Performance Status; female; hemoglobin blood level; hospital mortality; hospital patient; human; major clinical study; male; Pneumonia Severity Index; prediction; prognosis; protein blood level; respiratory tract disease assessment; retrospective study; sodium blood level; survivor; urea nitrogen blood level; very elderly; aspiration pneumonia; community acquired infection; pneumonia; severity of illness index | English | 2022 | 2022-01 | 10.1016/j.jiac.2021.09.019 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Nonparametric prior elicitation for a binomial proportion | This paper proposes a nonparametric Bayesian approach based on a density estimation with an open unit interval (0,1) using binomial data. We propose a very efficient nonparametric Bayesian approach method to infer smooth density defined on (0,1) through the transformation of a random variable. For practical implementation, we provide the corresponding blocked Gibbs sampling procedure based on the stick-breaking representation. The greatest advantage of this method is that it does not require us to draw from the complete conditional posterior distribution using a Metropolis-Hastings transition probability because the proposed transformation leads to a pair of conjugate priors and likelihoods. The validity of the proposed method is assessed through simulated and real data analysis. | Seo, Jung In; Kim, Yongku | Daejeon Univ, Dept Stat, Daejeon, South Korea; Kyungpook Natl Univ, Dept Stat, Daegu, South Korea | 56019284300; 47962102500 | kim.1252@knu.ac.kr; | COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION | COMMUN STAT-SIMUL C | 0361-0918 | 1532-4141 | 51 | 6 | SCIE | STATISTICS & PROBABILITY | 2022 | 0.9 | 74.8 | 0 | 2025-06-25 | 0 | 0 | Binomial proportion; Blocked Gibbs sampling; Dirichlet process mixture; Nonparametric prior | BAYESIAN DENSITY-ESTIMATION; SAMPLING METHODS; DIRICHLET; MODEL | Binomial proportion; Blocked Gibbs sampling; Dirichlet process mixture; Nonparametric prior | Probability distributions; Binomial proportion; Dirichlet process mixture; Gibbs sampling; Metropolis Hastings; Non-parametric; Non-parametric Bayesian; Posterior distributions; Transition probabilities; Bayesian networks | English | 2022 | 2022-06-03 | 10.1080/03610918.2019.1702210 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Note on the family of proportional reversed hazard distributions | For many years, authors have been interested in developing methods for generating distributions that provide a flexible family to model lifetime variables. This paper proposes an exact inference approach to the family of proportional reversed hazard distributions based on the pivotal quantity, which yields exact confidence intervals with the shortest-length as well as reasonable estimators for the family of proportional reversed hazard distributions. In addition, the approach is extended to functions related to the unknown parameters using a generalized pivotal quantity such as the the goodness of fit test and entropy issues without computational complexity. The proposed method is illustrated through Monte Carlo simulations and real data analysis. | Seo, Jung In; Kim, Yongku | Halla Univ, Div Convergence Educ, Wonju, South Korea; Kyungpook Natl Univ, Dept Stat, Daegu, South Korea | 56019284300; 47962102500 | kim.1252@knu.ac.kr; | COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION | COMMUN STAT-SIMUL C | 0361-0918 | 1532-4141 | 51 | 10 | SCIE | STATISTICS & PROBABILITY | 2022 | 0.9 | 74.8 | 0.29 | 2025-06-25 | 4 | 2 | Exact confidence interval; Goodness of fit test; Pivotal quantity; Proportional reversed hazard | INFERENCE | Exact confidence interval; Goodness of fit test; Pivotal quantity; Proportional reversed hazard | Intelligent systems; Monte Carlo methods; Exact confidence interval; Exact inference; Generalized pivotal quantity; Goodness of fit; Goodness of fit test; Hazard distributions; Monte Carlo's simulation; Pivotal quantity; Proportional reversed hazard; Real data analysis; Hazards | English | 2022 | 2022-10-03 | 10.1080/03610918.2020.1783558 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Genome analysis of the heterotrophic microalga Thraustochytrium sp. TN22 to identify genes involved in exopolysaccharide and carotenoid biosynthesis pathways | In this study, the genome of Thraustochytrium sp. TN22, a heterotrophic marine microalga, was sequenced, assembled and annotated using the Illumina NovaSeq 6000, PacBio RS II and MinION platform to identify genes and EPS and carotenoid biosynthesis pathways. The genome of Thraustochytrium sp. TN22 consists of 38,842,079 bp with a G + C content of 66.52% and reached 90.7% gene completeness. In total, 15,208 genes were annotated, among which 14,236 genes were identified using the NCBI-nr, KEGG, GO, COG and InterProScan databases. Pathway analysis showed that EPS biosynthesis in Thraustochytrium sp. TN22 follows an ABC-dependent pathway. The carotenoids of Thraustochytrium TN22 are predicted to be synthesized via the mevalonate pathway, and the conversion of beta-carotene to xanthophyll proceeds through beta-cryptoxanthin and zeaxanthin intermediates. Our results will be useful for improving high-value coproducts for industrial application of thraustochytrids. | Hoang Thi Minh Hien; Le Thi Thom; Quang Huy Pham; Dang Diem Hong | Vietnam Acad Sci & Technol, Inst Biotechnol, 18 Hoang Quoc Viet, Hanoi, Vietnam; Grad Univ Sci & Technol, Vietnam Acad Sci & Technol, 18 Hoang Quoc Viet, Hanoi, Vietnam; Kyungpook Natl Univ, Sch Appl Biosci, Daegu, South Korea; Thuyloi Univ, 175 Tay Son, Hanoi, Vietnam | Pham, Quang/AAB-3064-2022 | 42161245300; 56649218600; 57374765500; 55041069000 | hmhien@ibt.ac.vn;ddhong60vn@yahoo.com; | MARINE GENOMICS | MAR GENOM | 1874-7787 | 1876-7478 | 61 | SCIE | GENETICS & HEREDITY | 2022 | 1.9 | 75.1 | 0.76 | 2025-06-25 | 2 | 3 | Thraustochytrium sp. TN22; Carotenoid; Exopolysaccharide; Genome; Next generation sequencing | OMEGA-3 | Carotenoid; Exopolysaccharide; Genome; Next generation sequencing; Thraustochytrium sp. TN22 | Carotenoids; Genome; Microalgae; Sequence Analysis, DNA; Stramenopiles; carotenoid; DNA sequence; genetics; genome; microalga; stramenopile | English | 2022 | 2022-02 | 10.1016/j.margen.2021.100918 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Transcriptomic analysis of brine shrimp Artemia franciscana across a wide range of salinities | Brine shrimp Artemia franciscana, a commercially important species, can thrive in a wide range of salinities and is commonly found in hypersaline lakes and solar salterns. Transcriptome analysis can enhance the understanding of the adaptative mechanisms of brine shrimp in aquaculture. RNA sequencing (RNAseq) data was generated from A. franciscana adults that were salt-adapted for 2-4 weeks at five salinities: 35, 50, 100, 150, and 230 psu. Long-read isoform sequencing (IsoSeq) data was used to construct a high-quality transcriptome assembly. Also, the gene expression patterns in A. franciscana adults were examined. Notably, the transcriptional response of A. franciscana's acclimation to intermediate salinities (50-150 psu) displayed frequently and differentially U-shaped or inverted U-shaped expression patterns. In addition, the types of genes showing two nonmonotonic expression patterns were distinct from each other. The coordinated shifts in gene expression suggest different homeostatic strategies of A. franciscana at specific salinities; such strategies may enhance population fitness at extreme salinities. Our study should promote a scientific concept for the gene expression patterns of A. franciscana along a broad salinity gradient, and a variety of salinity and prey should be monitored for testing the gene expression pattern of this important aquaculture species. | Lee, JunMo; Cho, Byung Cheol; Park, Jong Soo | Kyungpook Natl Univ, Dept Oceanog, Daegu 41566, South Korea; Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 08826, South Korea; Kunsan Natl Univ, Saemangeum Environm Res Ctr, Kunsan 54150, South Korea | Park, Jong/AAJ-3576-2020 | 57217851052; 7401747485; 23486274100 | jongsoopark@knu.ac.kr; | MARINE GENOMICS | MAR GENOM | 1874-7787 | 1876-7478 | 61 | SCIE | GENETICS & HEREDITY | 2022 | 1.9 | 75.1 | 1.3 | 2025-06-25 | 12 | 12 | Artemia; Crustacean; Differential gene expression; Euryhaline; Osmoregulation | NA+/K+-ATPASE ACTIVITY; GENE-EXPRESSION; GENOME; ANNOTATION; ADAPTATION; CRUSTACEA; STRESS; LAKE; TEMPERATURE; EVOLUTION | Artemia; Crustacean; Differential gene expression; Euryhaline; Osmoregulation | Animals; Artemia; Gene Expression Profiling; Lakes; Salinity; Transcriptome; transcriptome; animal; Artemia; gene expression profiling; genetics; lake; salinity | English | 2022 | 2022-02 | 10.1016/j.margen.2021.100919 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Editorial Material | 3D printing technology for periodontal complex neogenesis in regenerative medicine | Park, Chan Ho | Kyungpook Natl Univ, Sch Dent, Dept Dent Biomat, Daegu, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Dent Biomat, 2177 Dalgubeol daero, Daegu 41940, South Korea | 55728043300 | chanho@knu.ac.kr; | JOURNAL OF PERIODONTAL AND IMPLANT SCIENCE | J PERIODONTAL IMPLAN | 2093-2278 | 2093-2286 | 52 | 4 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 0.33 | 2025-06-25 | 2 | 2 | English | 2022 | 2022-08 | 10.5051/jpis.225204edi01 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Accuracy of artificial intelligence-assisted landmark identification in serial lateral cephalograms of Class III patients who underwent orthodontic treatment and two-jaw orthognathic surgery | Objective: To investigate the pattern of accuracy change in artificial intelligence-assisted landmark identification (LI) using a convolutional neural network (CNN) algorithm in serial lateral cephalograms (Lat-cephs) of Class III (C-III) patients who underwent two -jaw orthognathic surgery. Methods: A total of 3,188 Lat-cephs of C-III patients were allocated into the training and validation sets (3,004 Lat-cephs of 751 patients) and test set (184 Lat-cephs of 46 patients; subdivided into the genioplasty and non-genioplasty groups, n = 23 per group) for LI. Each C-III patient in the test set had four Lat-cephs: initial (T0), pre-surgery (T1, presence of orthodontic brackets [OBs]), post-surgery (T2, presence of OBs and surgical plates and screws [S-PS]), and debonding (T3, presence of S-PS and fixed retainers [FR]). After mean errors of 20 landmarks between human gold standard and the CNN model were calculated, statistical analysis was performed. Results: The total mean error was 1.17 mm without significant difference among the four time -points (T0, 1.20 mm; T1, 1.14 mm; T2, 1.18 mm; T3, 1.15 mm). In comparison of two time-points ([T0, T1] vs. [T2, T3]), ANS, A point, and B point showed an increase in error (p < 0.01, 0.05, 0.01, respectively), while Mx6D and Md6D showeda decrease in error (all p < 0.01). No difference in errors existed at B point, Pogonion, Menton, Md1C, and Md1R between the genioplasty and non-genioplasty groups. Conclusions: The CNN model can be used for LI in serial Lat-cephs despite the presence of OB, S-PS, FR, genioplasty, and bone remodeling. | Hong, Mihee; Kim, Inhwan; Cho, Jin-Hyoung; Kang, Kyung-Hwa; Kim, Minji; Kim, Su-Jung; Kim, Yoon-Ji; Sung, Sang-Jin; Kim, Young Ho; Lim, Sung-Hoon; Kim, Namkug; Baek, Seung-Hak | Seoul Natl Univ, Sch Dent, Dent Res Inst, Dept Orthodont, 101 Daehak Ro, Seoul 03080, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu, South Korea; Univ Ulsan, Asan Med Ctr, Asan Med Inst Convergence Sci & Technol, Dept Convergence Med,Coll Med, Seoul, South Korea; Chonnam Natl Univ, Dept Orthodont, Sch Dent, Gwangju, South Korea; Wonkwang Univ, Sch Dent, Dept Orthodont, Iksan, South Korea; Ewha Womans Univ, Coll Med, Dept Orthodont, Seoul, South Korea; Kyung Hee Univ, Dept Orthodont, Sch Dent, Seoul, South Korea; Univ Ulsan, Asan Med Ctr, Dept Orthodont, Coll Med, Seoul, South Korea; Ajou Univ, Inst Oral Hlth Sci, Dept Orthodont, Sch Med, Suwon, South Korea; Chosun Univ, Coll Dent, Dept Orthodont, Gwangju, South Korea; Univ Ulsan, Asan Med Ctr, Dept Convergence Med, Coll Med, 88,Olymp Ro 43 Gil, Seoul 05505, South Korea | Sung, Sang Jin/KBQ-4217-2024; Kim, Jung/L-9791-2019; Baek, Seung-Hak/NOE-8444-2025; KIM, SUHWAN/GSE-0120-2022 | 57190379016; 57222816092; 15764519700; 35285868600; 57201330607; 57039799500; 57221435554; 7202731963; 57207443980; 36793499100; 16550058300; 35090967400 | namkugkim@gmail.com;drwhite@unitel.co.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 52 | 4 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 3.46 | 2025-06-25 | 20 | 16 | Convolutional neural network; Landmark identification; Two-jaw orthognathic surgery; Serial lateral encephalogram | SUPERIMPOSITION | Convolutional neural network; Landmark identification; Serial lateral encephalogram; Two-jaw orthognathic surgery | English | 2022 | 2022-07 | 10.4041/kjod21.248 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Accuracy of one-step automated orthodontic diagnosis model using a convolutional neural network and lateral cephalogram images with different qualities obtained from nationwide multi-hospitals | Objective: The purpose of this study was to investigate the accuracy of one-step automated orthodontic diagnosis of skeletodental discrepancies using a convolutional neural network (CNN) and lateral cephalogram images with different qualities from nationwide multi-hospitals. Methods: Among 2,174 lateral cephalograms, 1,993 cephalograms from two hospitals were used for training and internal test sets and 181 cephalograms from eight other hospitals were used for an external test set. They were divided into three classification groups according to anteroposterior skeletal discrepancies (Class I, II, and III), vertical skeletal discrepancies (normodivergent, hypodivergent, and hyperdivergent patterns), and vertical dental discrepancies (normal overbite, deep bite, and open bite) as a gold standard. Pre-trained DenseNet-169 was used as a CNN classifier model. Diagnostic performance was evaluated by receiver operating characteristic (ROC) analysis, t-stochastic neighbor embedding (t-SNE), and gradient weighted class activation mapping (Grad-CAM). Results: In the ROC analysis, the mean area under the curve and the mean accuracy of all classifications were high with both internal and external test sets (all, > 0.89 and > 0.80). In the t-SNE analysis, our model succeeded in creating good separation between three classification groups. Grad-CAM figures showed differences in the location and size of the focus areas between three classification groups in each diagnosis. Conclusions: Since the accuracy of our model was validated with both internal and external test sets, it shows the possible usefulness of a one-step automated orthodontic diagnosis tool using a CNN model. However, it still needs technical improvement in terms of classifying vertical dental discrepancies. | Yim, Sunjin; Kim, Sungchul; Kim, Inhwan; Park, Jae-Woo; Cho, Jin-Hyoung; Hong, Mihee; Kang, Kyung-Hwa; Kim, Minji; Kim, Su-Jung; Kim, Yoon-Ji; Kim, Young Ho; Lim, Sung-Hoon; Sung, Sang Jin; Kim, Namkug; Baek, Seung-Hak | Seoul Natl Univ, Sch Dent, Dept Orthodont, Seoul, South Korea; Univ Ulsan, Dept Biomed Engn, Asan Med Ctr, Man Med Inst Convergence Sci & Technol,Coll Med, Seoul, South Korea; Chonnam Natl Univ, Dept Orthodont, Sch Dent, Gwangju, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu, South Korea; Wonkwang Univ, Sch Dent, Dept Orthodont, Iksan, South Korea; Ewha Wontans Univ, Coll Med, Dept Orthodont, Seoul, South Korea; Kyung Hee Univ, Dept Orthodont, Sch Dent, Seoul, South Korea; Univ Ulsan, Asan Med Ctr, Dept Orthodont, Coll Med, Seoul, South Korea; Ajou Univ, Inst Oral Hlth Sci, Dept Orthodont, Sch Med, Suwon, South Korea; Chosun Univ, Coll Dent, Dept Orthodont, Gwangju, South Korea; Univ Ulsan, Asan Med Ctr, Dept Convergence Med, Coll Med, 88 Olymp Ro 43 Gil, Seoul 05505, South Korea; Seoul Natl Univ, Sch Dent, Dent Res Inst, Dept Orthodont, 101 Daehak Ro, Seoul 03080, South Korea | ; Kim, Jung/L-9791-2019; Baek, Seung-Hak/NOE-8444-2025; Sung, Sang Jin/KBQ-4217-2024; KIM, SUHWAN/GSE-0120-2022 | 57209347030; 57221298125; 57222816092; 57206939484; 15764519700; 57190379016; 35285868600; 57201330607; 57039799500; 57221435554; 57207443980; 36793499100; 7202731963; 16550058300; 35090967400 | namkugkim@gmail.com;drwhite@unitel.co.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 52 | 1 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 2.16 | 2025-06-25 | 11 | 10 | One-step automated orthodontic diagnosis; Convolutional neural networks; Lateral cephalogram; Multi-center study | RELIABILITY; TESTS | Convolutional neural networks; Lateral cephalogram; Multi-center study; One-step automated orthodontic diagnosis | English | 2022 | 2022-01 | 10.4041/kjod.2022.52.1.3 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Assessment of pharyngeal airway in Korean adolescents according to skeletal pattern, sex, and cervical vertebral maturation: A cross-sectional CBCT study | Objective: To investigate airway volumes using cone-beam computed tomography (CBCT) by skeletal patterns, sex, and cervical vertebral maturation (CVM) stages in Korean adolescents. Methods: The sample consisted of pretreatment CBCT and cephalograms of 95 adolescents (aged 12-19) obtained out of 1,611 patients examined for orthodontic treatment from 2018 to 2020 in Kyungpook National University Dental Hospital. The samples were classified into two sex groups; three skeletal pattern groups, four chronological age groups and four CVM stages. Nasopharyngeal volumes (NPV), oropharyngeal volumes (OPV), total pharyngeal airway volume (TAV) and minimum cross-sectional area (MCA) measurements were taken from the CBCT. Multiple linear regression analyses to find out which one of the independent variables are good predictors for airway variables. Significant factors were analyzed by two-way multivariate analysis of variance (MANOVA) then multiple comparisons were analyzed using a t-test, and Fisher least significant difference. Results: Age, sex, CVM, and Sella-Nasion-B point have significant influence on airway variable. Males and females showed similar patterns of change in chronological age groups 1-3; however, males had larger NPV, OPV, and MCA at CVM in group 4. According to CVM stages, males had larger OPV, TAV, and MCA at CVM stage 6 (p-value: 0.019, 0.021, 0.015, respectively) and no sex differences at CVM stages 3, 4, and 5. Conclusions: Skeletal patterns have an effect on airway volume. Sex differences were found in CVM 6. | Elagib, Tassneem; Kyung, Hee-Moon; Hung, Bui Quang; Hong, Mihee | Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Orthodont, 2175 Dalgubeol Daero, Daegu 41940, South Korea | 57904882700; 7004292284; 57195222295; 57190379016 | mhhong1208@gmail.com; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 52 | 5 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 0.43 | 2025-06-25 | 2 | 2 | Pharyngeal airway; Cone-beam computed tomography; Skeletal age; Craniofacial pattern | OBSTRUCTIVE SLEEP-APNEA; VOLUME; AGE | Cone-beam computed tomography; Craniofacial pattern; Pharyngeal airway; Skeletal age | adolescent; adult; age; airway; article; child; cone beam computed tomography; controlled study; female; human; independent variable; Korean (people); major clinical study; male; multivariate analysis of variance; orthodontic procedure; pharynx; school child; sex difference | English | 2022 | 2022-09 | 10.4041/kjod21.267 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Comparison of one-jaw and two-jaw orthognathic surgery in patients with skeletal Class III malocclusion using data from 10 multi-centers in Korea: Part I. Demographic and skeletodental characteristics | Objective: To investigate demographic and skeletodental characteristics of one-jaw (1J-OGS) and two-jaw orthognathic surgery (2J-OGS) in patients with skeletal Class III malocclusion. Methods: 750 skeletal Class III patients who underwent OGS at 10 university hospitals in Korea between 2015 and 2019 were investigated; after dividing them into the 1J-OGS (n = 186) and 2J-OGS groups (n = 564), demographic and skeletodental characteristics were statistically analyzed. Results: 2J-OGS was more frequently performed than 1J-OGS (75.2 vs. 24.8%), despite regional differences (capital area vs. provinces, 86.6 vs. 30.7%, p < 0.001). Males outnumbered females, and their mean operation age was older in both groups. Regarding dental patterns, the most frequent maxillary arch length discrepancy (ALD) was crowding in the 1J-OGS group (52.7%, p < 0.001) and spacing in the 2J-OGS group (40.4%, p 0.001). However, the distribution of skeletal pattern was not significantly different between the two groups (all p 0.05). The most prevalent skeletal patterns in both groups were hyper-divergent pattern (50.0 and 54.4%, respectively) and left-side chin point deviation (both 49.5%). Maxillary spacing (odds ratio [OR], 3.645; p < 0.001) increased the probability of 2J-OGS, while maxillary crowding (OR, 0.672; p < 0.05) and normo-divergent pattern (OR, 0.615; p < 0.05) decreased the probability of 2J-OGS. Conclusions: In both groups, males outnumbered females, and their mean operation age was older. The most frequent ALD was crowding in the 1J-OGS group, and spacing in the 2J-OGS group, while skeletal characteristics were not significantly different between the two groups. [Korean J Orthod 2022;52(1):66-74] | Lim, Seung-Weon; Kim, Minsoo; Hong, Mihee; Kang, Kyung-Hwa; Kim, Minji; Kim, Su-Jung; Kim, Yoon-Ji; Kim, Young Ho; Lim, Sung-Hoon; Sung, Sang Jin; Baek, Seung-Hak; Cho, Jin-Hyoung | Hanyang Univ Hosp, Dept Dent, Div Orthodont, Seoul, South Korea; Chonnam Natl Univ, Coll Nat Sci, Dept Stat, Gwangju, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Orthodont, Daegu, South Korea; Wonkwang Univ, Sch Dent, Dept Orthodont, Iksan, South Korea; Ewha Womans Univ, Dept Orthodont, Coll Med, Seoul, South Korea; Kyung Hee Univ, Dept Orthodont, Sch Dent, Seoul, South Korea; Univ Ulsan, Dept Orthodont, Asan Med Ctr, Coll Med, Seoul, South Korea; Ajou Univ, Dept Orthodont, Sch Med, Inst Oral Hlth Sci, Suwon, South Korea; Chosun Univ, Coll Dent, Dept Orthodont, Gwangju, South Korea; Seoul Natl Univ, Sch Dent, Dent Res Inst, Dept Orthodont, Seoul, South Korea; Chonnam Natl Univ, Dept Orthodont, Sch Dent, 33 Yongbong Ro, Gwangju 61186, South Korea | ; Sung, Sang Jin/KBQ-4217-2024; KIM, SUHWAN/GSE-0120-2022; Baek, Seung-Hak/NOE-8444-2025 | 57215033775; 56726860500; 57190379016; 35285868600; 57201330607; 57039799500; 57221435554; 57207443980; 36793499100; 7202731963; 35090967400; 15764519700 | jhcho@chonnam.ac.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 52 | 1 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 0.43 | 2025-06-25 | 2 | 2 | Class III orthognathic surgery; Class III diagnosis; Class III treatment | DENTOFACIAL DEFORMITIES; POPULATION; EXTRACTION | Class III diagnosis; Class III orthognathic surgery; Class III treatment | English | 2022 | 2022-01 | 10.4041/kjod.2022.52.1.66 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Do We Need Safety Nets for Outsourced Computer-Aided Orthognathic Planning? A Two-Center Analysis | Purpose: While the accuracy, cost-effectiveness, and time-efficiency of computer-aided orthognathic surgical planning (CAOP) have been studied, little is known about the influence of logistical factors of outsourced CAOP (OS-CAOP) on patient care. The purpose of this study was to investigate the limitations of OS-CAOP and their effect on treatment planning workflow and surgical outcomes. Methods: A retrospective cross-sectional study was designed involving subjects who had undergone orthognathic surgery using CAOP from 2 academic oral and maxillofacial surgery centers in South Korea (Kyungpook National University, KNU) and the United States (University of Illinois Chicago, UIC) over an 8-year period. The primary predictor variable was use of modifications or alternatives to OS-CAOP. The primary outcome variable was the frequency of planning changes due to reasons that may have affected outcomes. Covariates included age and sex. Descriptive statistics was used, in addition to a chisquare test to analyze differences among categorical variables. Results: Of a total of 642 eligible subjects in both centers, 5.8% used alternatives to OS-CAOP. 78.4% of these were due to reasons that may have affected outcomes (P < .001), representing 4.5% of all cases. The frequency of the need for OS-CAOP alternatives was identical in both centers (5.8%), but the specific reasons varied, with KNU having mostly plan-related changes (38.1% of alternatives), and UIC with more access and education-related reasons (68.8% of alternatives). At KNU, 71.4% of all alternatives were by repeat OS-CAOP, whereas at UIC, all were by in-house CAOP (IH-CAOP). Conclusions: In 2 major academic oral and maxillofacial surgery centers in South Korea and the United States, a substantial portion of OS-CAOP required pre-surgical modification, or use of alternatives. Most of the changes were for reasons that could potentially impact outcomes, prompting the need to consider establishing a "safety net" plan compatible with individual clinician's practice setting and healthcare system. (C) 2022 American Association of Oral and Maxillofacial Surgeons | Kwon, Tae-Geon; Miloro, Michael; Han, Michael D. | Kyungpook Natl Univ, Dept Oral & Maxillofacial Surg, Daegu, South Korea; Univ Illinois, Dept Oral & Maxillofacial Surg, Chicago, IL 60612 USA | 35205433300; 7004249840; 57195322718 | hanmd@uic.edu; | JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY | J ORAL MAXIL SURG | 0278-2391 | 1531-5053 | 80 | 9 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 0.43 | 2025-06-25 | 2 | 2 | SURGERY; ACCURACY; COST | Computer-Aided Design; Computers; Cross-Sectional Studies; Humans; Orthognathic Surgery; Orthognathic Surgical Procedures; Patient Care Planning; Retrospective Studies; Surgery, Computer-Assisted; adult; Article; clinical outcome; computer aided design/computer aided manufacturing; computer assisted surgery; controlled study; cross-sectional study; female; health care access; human; major clinical study; male; orthognathic surgery; quantitative analysis; retrospective study; safety net health care; South Korea; treatment planning; United States; university hospital; workflow; young adult; computer; computer aided design; patient care planning | English | 2022 | 2022-09 | 10.1016/j.joms.2022.06.002 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Influence of late removal after treatment on the removal torque of microimplants | Objective: To compare the removal torque of microimplants upon post-use removal and post-retention removal and to assess the influencing factors. Methods: The sample group included 241 patients (age, 30.25 ?? 12.2 years) with 568 microimplants. They were divided into the post-use (microimplants removed immediately after use or treatment) and post-retention (microimplants removed during the retention period) removal groups. The removal torque in both groups was assessed according to sex, age, placement site and method, and microimplant size. Pearson correlation and multiple linear regression analyses were performed for evaluating variables influencing the removal torque. Results: The mean period of total in-bone stay of microimplants in the postretention removal group (1,237 days) was approximately two times longer than that in the post-use removal group (656.28 days). The removal torques in the post-retention removal group (range, 4???5 N cm) were also higher than those in the post-use removal group. The mandible and pre-drilling groups demonstrated higher placement and removal torques than did the maxilla and no-drilling groups, respectively. In the no-drilling post-use removal group, the placement torque and microimplant length positively correlated with the removal torque. In the post-retention removal group, unloading in-bone stay period and microimplant diameter positively correlated with the removal torque in the no-drilling and pre-drilling methods, respectively. Conclusions: The removal torques differed according to the orthodontic loading and removal time of microimplants. With prolonged retention of microimplants inserted using the no-drilling method, the removal torque was clinically acceptable and positively correlated with the unloading in-bone stay period. | Kim, Ho-Jin; Park, Hyo-Sang | Kyungpook Natl Univ, Sch Dent, Dept Orthodont, 2175 Dalgubul Daero, Daegu 41940, South Korea | 57200084686; 55754836800 | parkhs@knu.ac.kr; | KOREAN JOURNAL OF ORTHODONTICS | KOREAN J ORTHOD | 2234-7518 | 2005-372X | 52 | 3 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 0 | 2025-06-25 | 0 | 0 | Microimplant; Stability; Retention; Removal torque | CORTICAL BONE; IMPLANTS; PLACEMENT; STABILITY; INSERTION; ALVEOLAR; VALUES | Microimplant; Removal torque; Retention; Stability | English | 2022 | 2022-05 | 10.4041/kjod21.217 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | What Do We Know Beyond Reliability in Voxel-Based Registration? Validation of the Accuracy of Regional Voxel-Based Registration (R-VBR) Techniques for Orthognathic Surgery Analysis | Purpose: Despite having excellent reproducibility, the accuracy of regional voxel-based registration (RVBR) techniques used for postoperative orthognathic surgical analysis has not been validated. The purpose of this study was to validate the accuracy of R-VBR. Methods: Preoperative (T0) and postoperative (T1) cone beam computed tomography (CBCT) of consecutive patients treated at a single center with nonsegmental LeFort I and bilateral sagittal split osteotomy were included. T1 CBCTs were oriented to match that of the standardized TO, and thus were assigned a known rotational transformation matrix in pitch/roll/yaw (P/R/Y), to create T1-prime (T1'). A copy of T1 (cT1) was made and was superimposed to T1' using R-VBR for 4 regions of interest (ROI): maxilla, distal mandible, right proximal mandible, and left proximal mandible, to create cT1'. The transformation matrix for each of the ROI was compared to those of T1' using paired t test and Bland-Altman analysis. Results: Twenty-eight eligible subjects' CBCTs were analyzed. Mean difference between T1' and cT1' ranged from -0.08 to 0.14 degrees (maximum 0.73 degrees), with no statistically significant differences (P = 0.216 to 1). Mean absolute difference ranged from 0.13 to 0.31 degrees (maximum 0.73 degrees). Bland-Altman analysis showed good agreement between T1' and cT1', indicating excellent accuracy. Conclusions: R-VBR using the maxilla, distal mandible, and the bilateral proximal mandibular segments as ROI has excellent accuracy in terms of rotational measurements. (C) 2021 The American Association of Oral and Maxillofacial Surgeons. | Han, Michael D.; Graca, Sebastian; Kwon, Tae-Geon; Borba, Alexandre M.; Antonini, Fernando; Miloro, Michael | Univ Illinois, Dept Oral & Maxillofacial Surg, Chicago, IL 60612 USA; Kyungpook Natl Univ, Dept Oral & Maxillofacial Surg, Daegu, South Korea; Univ Cuiaba, Fac Dent, Program Integrated Dent Sci, Cuiaba, Mato Grosso, Brazil; Univ Extremo Sul Catarinense, Sch Dent, Criciuma, SC, Brazil | ; Borba, Alexandre/D-1723-2011 | 57195322718; 57363723700; 35205433300; 57194702994; 36699291500; 7004249840 | hanmd@uic.edu; | JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY | J ORAL MAXIL SURG | 0278-2391 | 1531-5053 | 80 | 2 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE | 2022 | 1.9 | 75.3 | 1.28 | 2025-06-25 | 5 | 6 | SUPERIMPOSITION | Cephalometry; Cone-Beam Computed Tomography; Humans; Imaging, Three-Dimensional; Mandible; Orthognathic Surgery; Orthognathic Surgical Procedures; Reproducibility of Results; adult; article; clinical article; cone beam computed tomography; controlled study; female; human; male; mandible; maxilla; orthognathic surgery; osteotomy; pitch; reliability; cephalometry; diagnostic imaging; procedures; reproducibility; surgery; three-dimensional imaging | English | 2022 | 2022-02 | 10.1016/j.joms.2021.10.003 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | A fluid-structure interaction analysis of design factor of subsurface irrigation PC dripper | A subsurface drip irrigation system delivers water and nutrients directly to the plant root zone; other conventional nozzles-type or sprinklers-type irrigation are not used, and water-saving can reach 42-78%. In order to achieve this impact effectively, the drip irrigation requires a constant water supply under variations in pressure, which is so-called pressure compensating (PC) performance. The pressure compensating feature can be obtained by physical interaction between water flow and deformable silicone rubber in the PC dripper. In addition, pressure condition to ensure uniform water flow as a tresholding point also should be well designed, but it is generally have relied on the empiricial optimization. Here, we applied computational fluid dynamics to investigate water flow features in terms of flow rate and pressure drop of a conventional PC dripper. To understand the quantitative effects of changes in design parameters, we explored the fluid-structure interaction scheme in the CFD analysis between water flow and silicone rubber deformation. In this study, it is found that the marginal space for the silicone rubber deformation determined the threshold pressure condition; the friction condition of the tortuous channel of the dripper controlled the flow rate. This parametric study gave the logical insight to design new drip emitter with well-controlled and improved performance. | Kang, Woong Bhin; Kim, Jeongsik; Mo, Hyeonguk; Eum, Dukho; Lee, Sanghun; Kim, Jinhyun; Kim, Seolha | Kyungpook Natl Univ, Dept Precis Mech Engn, Sangju 37224, South Korea; Kyungpook Natl Univ, Young Engn Educ Program Multidisciplinary Smart D, Sangju 37224, South Korea; Namkyung Co Ltd, Hwaseong 18626, South Korea; Rural Dev Adm, Natl Inst Crop Sci, Dept Southern Area Crop Sci, Miryang 50424, South Korea | 57788109400; 57786618900; 57731289800; 57224525620; 56181002600; 57189383494; 57195257413 | shkim0731@knu.ac.kr; | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 36 | 7 | SCIE | ENGINEERING, MECHANICAL | 2022 | 1.6 | 75.4 | 0.08 | 2025-06-25 | 1 | 1 | Computational fluid dynamics; Dripper design factors; Fluid-structure interaction; Pressure compensation; Surface irrigation | EMITTERS | Computational fluid dynamics; Dripper design factors; Fluid-structure interaction; Pressure compensation; Surface irrigation | Deformation; Fluid structure interaction; Hose; Hydraulics; Rubber; Silicones; Water conservation; Water supply; Design factors; Dripper design factor; Fluid-structure interaction; Performance; Pressure compensating; Pressure compensation; Pressure conditions; Silicone rubber; Surface irrigation; Water flows; Computational fluid dynamics | English | 2022 | 2022-07 | 10.1007/s12206-022-0624-6 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | A study on a new method for flexoelectric coefficient estimation of the flexoelectric unimorph sensing element | In the flexoelectric sensing element using the bending mode, the estimation of the flexoelectric coefficient was investigated using 3-D stress/strain analysis and experiments. The proposed method uses the results (deformation and strain) from the finite element analysis (FEA). The estimated flexoelectric coefficients were compared with those obtained via the conventional method (Euler's beam theory) under the assumption of the quasi 1-D stress field. The results show that the RMS value and standard deviation of the estimated flexoelectric coefficient for the 3-D stress-field case of the sensing element are 31.51 mu C/m and 0.24 %, respectively. In addition, it is found that the flexoelectric coefficient obtained from the results of the 3-D stress analysis is 1.8 % smaller than that of the quasi-1-D stress analysis. Therefore, in order to obtain a more reliable flexoelectric coefficient in the sensing element, the results of the 3-D numerical stress analysis should be used for accurate estimation of the flexoelectric coefficient. | Kwon, Seol Ryung; Roh, Yongrae | Korea Inst Robot Ind Adv, Daegu, South Korea; Kyungpook Natl Univ, Daegu, South Korea | 55542309100; 7102361870 | seol.kwon@gmail.com; | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | J MECH SCI TECHNOL | 1738-494X | 1976-3824 | 36 | 5 | SCIE | ENGINEERING, MECHANICAL | 2022 | 1.6 | 75.4 | 0 | 2025-06-25 | 0 | 0 | Bending mode; Strain gradient; Stress analysis; Flexoelectric coefficient; Flexoelectricity; Unimorph sensing element | Bending mode; Flexoelectric coefficient; Flexoelectricity; Strain gradient; Stress analysis; Unimorph sensing element | 1-D stress; Bending modes; Flexoelectric; Flexoelectric coefficients; Flexoelectricity; Sensing elements; Strain gradients; Stresses analysis; Unimorph; Unimorph sensing element; Stress analysis | English | 2022 | 2022-05 | 10.1007/s12206-022-0408-z | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: