Korean Journal of Orthodontics最新文献_第9页

Consideration of root position in virtual tooth setup for extraction treatment: A comparative study of simulated and actual treatment results. 在拔牙治疗中考虑牙根位置:模拟与实际治疗结果的比较研究。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2023-01-25 DOI: 10.4041/kjod22.105

Mirinae Park, Veerasathpurush Allareddy, Phimon Atsawasuwan, Min Kyeong Lee, Kyungmin Clara Lee

{"title":"Consideration of root position in virtual tooth setup for extraction treatment: A comparative study of simulated and actual treatment results.","authors":"Mirinae Park, Veerasathpurush Allareddy, Phimon Atsawasuwan, Min Kyeong Lee, Kyungmin Clara Lee","doi":"10.4041/kjod22.105","DOIUrl":"https://doi.org/10.4041/kjod22.105","url":null,"abstract":"Objective: The purpose of the present study was to compare the root positions in virtual tooth setups using only crowns in a simulated treatment with those achieved in the actual treatment.Methods: Pre- and post-treatment intraoral and corresponding cone beam computed tomography (CBCT) scans were obtained from 15 patients who underwent orthodontic treatment with premolar extraction. A conventional virtual tooth setup was used for the treatment simulation. Pre- and post-treatment three-dimensional digital tooth models were fabricated by integrating the patients' intraoral and CBCT scans. The simulated root positions in the virtual setup were obtained by merging the crown in the virtual setup and root in the pre-treatment tooth model. The root positions of the simulated and actual post-treatment tooth models were compared.Results: Differences in root positions between the simulated and actual models were > 1 mm in all teeth, and statistically significant differences were observed (p < 0.05), except for the maxillary lateral incisors. The differences in the inter-root angulation were > 1° in all teeth, and statistically significant differences were observed in the maxillary and mandibular canines.Conclusions: The virtual tooth setup using only crown data showed errors over the clinical limits. The clinical application of a virtual setup using crowns and roots is necessary for accurate and precise treatment simulation, particularly in extraction treatment.","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"53 1","pages":"26-34"},"PeriodicalIF":1.9,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e1/49/kjod-53-1-26.PMC9877363.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9193764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Correction of late adolescent skeletal Class III using the Alt-RAMEC protocol and skeletal anchorage. 使用Alt-RAMEC方案和骨骼锚固矫治晚期青少年骨骼III类。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2023-01-25 DOI: 10.4041/kjod21.337

Muhammed Hilmi Büyükçavuş, Ömer Faruk Sari, Yavuz Findik

引用次数: 0

Evaluation of the cell viability and antimicrobial effects of orthodontic bands coated with silver or zinc oxide nanoparticles: An in vitro study. 氧化银或氧化锌纳米颗粒涂层正畸带的细胞活力和抗菌效果的评估:一项体外研究。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2023-01-25 DOI: 10.4041/kjod22.091

Rashin Bahrami, Maryam Pourhajibagher, Alireza Badiei, Reza Masaeli, Behrad Tanbakuchi

{"title":"Evaluation of the cell viability and antimicrobial effects of orthodontic bands coated with silver or zinc oxide nanoparticles: An in vitro study.","authors":"Rashin Bahrami, Maryam Pourhajibagher, Alireza Badiei, Reza Masaeli, Behrad Tanbakuchi","doi":"10.4041/kjod22.091","DOIUrl":"https://doi.org/10.4041/kjod22.091","url":null,"abstract":"Objective: We aimed to evaluate the cell viability and antimicrobial effects of orthodontic bands coated with silver or zinc oxide nanoparticles (nano-Ag and nano-ZnO, respectively).Methods: In this experimental study, 30 orthodontic bands were divided into three groups (n = 10 each): control (uncoated band), Ag (silver-coated band), and ZnO (zinc oxide-coated band). The electrostatic spray-assisted vapor deposition method was used to coat orthodontic bands with nano-Ag or nano-ZnO. The biofilm inhibition test was used to assess the antimicrobial effectiveness of nano-Ag and nano-ZnO against Streptococcus mutans, Lactobacillus acidophilus, and Candida albicans. Biocompatibility tests were conducted using the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay. The groups were compared using oneway analysis of variance with a post-hoc test.Results: The Ag group showed a significantly higher reduction in the number of L. acidophilus, C. albicans, and S. mutans colonies than the ZnO group (p = 0.015, 0.003, and 0.005, respectively). Compared with the control group, the Ag group showed a 2-log10 reduction in all the microorganisms' replication ability, but only S. mutants showed a 2-log10 reduction in replication ability in the ZnO group. The lowest mean cell viability was observed in the Ag group, but the difference between the groups was insignificant (p > 0.05).Conclusions: Coating orthodontic bands with nano-ZnO or nano-Ag induced antimicrobial effects against oral pathogens. Among the nanoparticles, nano-Ag showed the best antimicrobial activity and nano-ZnO showed the highest biocompatibility.","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"53 1","pages":"16-25"},"PeriodicalIF":1.9,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/5b/9a/kjod-53-1-16.PMC9877365.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9193757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

LIST OF REVIEWERS IN 2022. 2022年审稿人名单。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2023-01-25

引用次数: 0

Comparative evaluation of shear bond strength of orthodontic brackets bonded to three-dimensionally-printed and milled materials after surface treatment and artificial aging. 表面处理与人工老化后正畸托槽与三维打印、研磨材料粘接剪切强度的比较评价

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2023-01-25 DOI: 10.4041/kjod22.098

Ameer Biadsee, Ofir Rosner, Carol Khalil, Vanina Atanasova, Joel Blushtein, Shifra Levartovsky

{"title":"Comparative evaluation of shear bond strength of orthodontic brackets bonded to three-dimensionally-printed and milled materials after surface treatment and artificial aging.","authors":"Ameer Biadsee, Ofir Rosner, Carol Khalil, Vanina Atanasova, Joel Blushtein, Shifra Levartovsky","doi":"10.4041/kjod22.098","DOIUrl":"https://doi.org/10.4041/kjod22.098","url":null,"abstract":"Objective: This study aimed to evaluate the shear bond strength (SBS) of orthodontic brackets bonded to three-dimensionally (3D)-printed materials after various surface treatments and artificial aging compared with that bonded to computer-aided design/computer-aided manufacturing (CAD-CAM) polymethyl methacrylate (PMMA)-milled materials.Methods: Eighty cylindrical specimens were 3D printed and divided into the following four subgroups (n = 20 each) according to the surface treatment and artificial aging procedure. Group A, sandblasted with 50 μm aluminum oxide particles (SA) and aging; group B, sandblasted with 30 μm silica-coated alumina particles (CO) and aging; group C, SA without aging; and group D, CO without aging. For the control group, 20 CAD-CAM PMMA-milled cylindrical specimens were sandblasted with SA and aged. The SBS was measured using a universal testing machine (0.25 mm/min), examined at ×2.5 magnification for failure mode classification, and statistically analyzed (p = 0.05).Results: The retention obtained with the 3D-printed materials (groups A-D) was higher than that obtained with the PMMA-milled materials (control group). However, no significant difference was found between the study and control groups, except for group C (SA without aging), which showed significantly higher retention than the control group (PMMA-SA and thermocycling) (p = 0.037). Study groups A-D predominantly exhibited a cohesive specimen mode, indicating specimen fracture.Conclusions: Orthodontic brackets bonded to 3D-printed materials exhibit acceptable bonding strengths. However, 3D-printed materials are prone to cohesive failure, which may result in crown fractures.","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"53 1","pages":"45-53"},"PeriodicalIF":1.9,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f1/13/kjod-53-1-45.PMC9877367.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9207434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Associations between body dysmorphic disorder (BDD) with the dental health component of the index of orthodontic treatment need (IOTN-DHC) and other BDD risk factors in orthodontic patients: A preliminary study. 正畸患者身体畸形障碍(BDD)与正畸治疗需求指数(ion - dhc)的牙齿健康成分及其他BDD危险因素之间的关系:初步研究

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2023-01-25 DOI: 10.4041/kjod22.155

Farhad Sobouti, Foruzan Elyasi, Reza Alizadeh Navaei, Farbod Rayatnia, Nika Rezaei Kalantari, Sepideh Dadgar, Vahid Rakhshan

{"title":"Associations between body dysmorphic disorder (BDD) with the dental health component of the index of orthodontic treatment need (IOTN-DHC) and other BDD risk factors in orthodontic patients: A preliminary study.","authors":"Farhad Sobouti, Foruzan Elyasi, Reza Alizadeh Navaei, Farbod Rayatnia, Nika Rezaei Kalantari, Sepideh Dadgar, Vahid Rakhshan","doi":"10.4041/kjod22.155","DOIUrl":"https://doi.org/10.4041/kjod22.155","url":null,"abstract":"Objective: Body dysmorphic disorder (BDD) is a form of obsessive-compulsive disorder that may be negatively associated with the self-image. It might be associated with orthodontic treatment demand and outcome, and therefore is important. Thus, this study was conducted.Methods: The Yale-Brown Obsessive-Compulsive Scale modified for Body Dysmorphic Disorder (BDD-YBOCS) questionnaire was used in 699 orthodontic patients above 12 years of age (222 males, 477 females), at seven clinics in two cities (2020-2021). BDD diagnosis and severity were calculated based on the first 3 items and all 12 items of the questionnaire. The dental health component of the index of orthodontic treatment need (IOTN-DHC) was assessed by orthodontists. Multivariable and bivariable statistical analyses were performed on ordinal and dichotomized BDD diagnoses to assess potentially associated factors (IOTN-DHC, age, sex, marital status, education level, and previous orthodontic consultation) (α = 0.05).Results: IOTN-DHC scores 1-5 were seen in 13.0%, 39.9%, 29.8%, 12.4%, and 4.9% of patients. Age/sex/marital status/education were not associated with IOTN-DHC (p > 0.05). Based on 3-item questionnaire, 17.02% of patients had BDD (14.02% mild). Based on 12-item questionnaire, 2.86% had BDD. BDD was more prevalent or severer in females, married patients, patients with a previous history of orthodontic consultation, and patients with milder IOTN-DHCs (p < 0.05).Conclusions: IOTN-DHC was negatively/slightly associated with BDD in orthodontic patients. Being female and married may increase BDD risk.","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"53 1","pages":"3-15"},"PeriodicalIF":1.9,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/77/ea/kjod-53-1-3.PMC9877362.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10713750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

READER'S FORUM. 读者的论坛。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2022-11-25 DOI: 10.4041/kjod22.205

Hyo-Won Ahn

引用次数: 0

Correction to: Treatment of anterior open bites using non-extraction clear aligner therapy in adult patients. 矫正:成人患者使用非拔牙透明矫正器治疗前开放性咬伤。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2022-09-25 DOI: 10.4041/kjod21.180.r

Heeyeon Suh, Bella Shen Garnett, Kimberly Mahood, Noor Mahjoub, Robert L Boyd, Heesoo Oh

引用次数: 0

Clinical application of maxillary tissue bone-borne expander and biocreative reverse curve system in the orthodontic retreatment of severe anterior open bite with transverse discrepancy: A case report. 上颌组织骨载扩张器与生物创反曲线系统在严重前开咬横差正畸再治疗中的临床应用1例。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2022-08-02 DOI: 10.4041/kjod22.158

Jin-Young Choi, Bai Jin, Seong-Hun Kim

{"title":"Clinical application of maxillary tissue bone-borne expander and biocreative reverse curve system in the orthodontic retreatment of severe anterior open bite with transverse discrepancy: A case report.","authors":"Jin-Young Choi, Bai Jin, Seong-Hun Kim","doi":"10.4041/kjod22.158","DOIUrl":"https://doi.org/10.4041/kjod22.158","url":null,"abstract":"Anterior open bite and transverse discrepancy are often accompanied by hyperdivergent skeletal patterns. In addition, degenerative joint disorders and vertical maxillary excess contribute to an unfavorable convex facial profile with a retruded chin. Correction of this complex three-dimensional problem with orthodontic treatment alone is considered challenging owing to anatomical limitations. Moreover, a history of orthodontic treatment with premolar extraction makes retreatment difficult. This case report illustrates the application of a maxillary tissue bone-borne expander and biocreative reverse curve system in a 23-year-old female patient with a severe anterior open bite and transverse discrepancy who underwent orthodontic treatment with four premolar extractions. By setting the treatment target under precise diagnosis and using appropriate appliances, a satisfactory treatment result could be achieved without orthognathic surgery.","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"52 5","pages":"372-382"},"PeriodicalIF":1.9,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/4e/68/kjod-52-5-372.PMC9512628.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33477705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A cone-beam computed tomography study on strategic uprighting of mandibular molars using a biocreative reverse curve system. 锥形束计算机体层摄影技术在下颌磨牙生物创反曲线矫正中的应用研究。

IF 1.9 3区医学

Korean Journal of Orthodontics Pub Date : 2022-07-22 DOI: 10.4041/kjod22.140

Jae-Woo Kim, Jin-Young Choi, Min-Ji Kim, Xu Bin, Seong-Hun Kim

{"title":"A cone-beam computed tomography study on strategic uprighting of mandibular molars using a biocreative reverse curve system.","authors":"Jae-Woo Kim, Jin-Young Choi, Min-Ji Kim, Xu Bin, Seong-Hun Kim","doi":"10.4041/kjod22.140","DOIUrl":"https://doi.org/10.4041/kjod22.140","url":null,"abstract":"Objective: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system.Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment and after treatment with the BRC system. The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system.Results: The application of the BRC system spanning from the first premolar to the second molar resulted not only in buccal and distal uprighting, but also in increased buccal and distal tipping of the teeth. The premolars and the first molar were extruded, and the second molar was intruded.Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars can be achieved bilaterally using a temporary skeletal anchorage device without unnecessary movement of the anterior teeth.","PeriodicalId":51260,"journal":{"name":"Korean Journal of Orthodontics","volume":"52 5","pages":"354-361"},"PeriodicalIF":1.9,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3b/f0/kjod-52-5-354.PMC9512623.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33478255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1