The Angle orthodontist最新文献_第2页

The corrosion products of proprietary and generic orthodontic fixed lingual retainers and their in-vitro cytotoxicity. 专利和普通正畸固定舌侧保持器的腐蚀产物及其体外细胞毒性。

The Angle orthodontist Pub Date : 2024-11-01 DOI: 10.2319/112823-788.1

Nessa A Finlay, Lam Cheng, Elizabeth Kelly, Peter Petocz, Narayan Gandedkar, Mehmet Ali Darendeliler, Oyku Dalci

{"title":"The corrosion products of proprietary and generic orthodontic fixed lingual retainers and their in-vitro cytotoxicity.","authors":"Nessa A Finlay, Lam Cheng, Elizabeth Kelly, Peter Petocz, Narayan Gandedkar, Mehmet Ali Darendeliler, Oyku Dalci","doi":"10.2319/112823-788.1","DOIUrl":"10.2319/112823-788.1","url":null,"abstract":"Objective: To assess the corrosion products and cytotoxicity of generic and proprietary fixed lingual retainers (FLRs).Materials and methods: Seven FLRs were investigated. Wires were submersed in solution for 34 days, at 37°C, under constant agitation. A proportion of this solution was analyzed to determine the concentration of metallic ions leaching off the wires. The remainder was diluted to 5%, 10% and 20% followed by exposure to human gingival fibroblasts and analysis of cytotoxicity of the wires.Results: Three wires (Dentaflex, Universal, and AZDent) released excessive concentrations of lead, two wires (MeshMark and Orthoflex) released excessive concentrations of nickel, and one wire (Universal) released excessive concentrations of molybdenum into solution. No statistically significant difference was found between the wires analyzed (P = .24). Slight cytotoxicity was noted in only one wire (Dentaflex) at a 20% dilution of eluent. This was also the wire which released the highest concentration of lead into solution. All other wires, at all concentrations, were deemed noncytotoxic, but five samples overall were deemed statistically significant (P < .0024). A statistically significant difference existed between wires (P = .013) and concentrations analyzed (P < .001).Conclusions: Metals were released in differing quantities from all wires, with some elemental concentrations measuring more than that deemed acceptable in drinking water in Australia. A trend toward increased cell viability across samples was found with only one demonstrating cytotoxicity. There was no indication that generic FLRs were more or less biocompatible than their proprietary counterparts.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"664-671"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11493422/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D printed indirect bonding trays: transfer accuracy of bar vs shell design in a prospective, randomized clinical trial. 三维打印间接粘接托盘：前瞻性随机临床试验中棒状与壳状设计的转移准确性。

The Angle orthodontist Pub Date : 2024-11-01 DOI: 10.2319/020524-90.1

Gulden Karabiber, Merve Nur Eglenen

{"title":"3D printed indirect bonding trays: transfer accuracy of bar vs shell design in a prospective, randomized clinical trial.","authors":"Gulden Karabiber, Merve Nur Eglenen","doi":"10.2319/020524-90.1","DOIUrl":"10.2319/020524-90.1","url":null,"abstract":"Objectives: To compare the transfer accuracy of two different indirect bonding (IDB) trays.Materials and methods: Digital IDB was performed on a total of 30 patients using one of two designs: shell and bar trays, with 15 patients in each group. Trays were designed with the Appliance Designer software (3Shape A/S, Copenhagen, Denmark). Angular (torque, tip, angulation) and linear (mesiodistal, buccolingual, occlusogingival) differences were compared between the bonded intraoral scans taken immediately after IDB and the virtually bracketed model prepared in Ortho Analyzer software (3Shape A/S) using open source GOM inspect software (GOM GmbH, Braunschweig, Germany).Results: There were no significant differences found between the bar and shell groups. Within the groups, significant tip differences were found between the incisors, canines, and premolars in both groups (P = .0001). Additionally, a statistically significant torque difference was found in the canines and incisors in the shell group. The percentage of values that deviated from the clinical acceptance limit was relatively higher in the bar group.Conclusions: Although there was no statistical difference between groups, the shell tray showed better results according to clinical acceptability limits. This study is important as it is the first clinical study to compare directly printed transfer trays with different designs.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"648-656"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11493419/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incidence of unexpected condylar displacement following comprehensive orthodontic treatment in adults. 成人综合正畸治疗后髁突意外移位的发生率。

The Angle orthodontist Pub Date : 2024-10-21 DOI: 10.2319/010924-24.1

Hosik Jang, Ji-Hyun Lee, Tung Nguyen, Kyung-Ho Kim, Chooryung J Chung

{"title":"Incidence of unexpected condylar displacement following comprehensive orthodontic treatment in adults.","authors":"Hosik Jang, Ji-Hyun Lee, Tung Nguyen, Kyung-Ho Kim, Chooryung J Chung","doi":"10.2319/010924-24.1","DOIUrl":"https://doi.org/10.2319/010924-24.1","url":null,"abstract":"Objectives: To evaluate the incidence and pattern of unexpected/excessive condylar displacement after comprehensive orthodontic treatment in adults.Materials and methods: Adult patients (age ≥18 years) who underwent comprehensive orthodontic treatment with pre-(T1) and post-treatment (T2) cone beam computed tomography scans were consecutively collected within an orthodontic cohort (N = 291). T1 and T2 CBCTs were superimposed three-dimensionally (3D) and condylar displacement was estimated by the 3D changes of condylar neck point (CdN) between T1 and T2 (ΔCdN). Participants with excessive condylar displacement (ΔCdN >1 mm) were classified as condylar displacement (+) and otherwise as displacement (-). The incidence and pattern of condylar displacement, association with factors such as sex, age, skeletal relationship, extraction pattern, treatment duration, history of temporomandibular joint disorder, and presence of condylar resorption with the final occlusal outcome were investigated.Results: The incidence of unexpected condylar displacement >1 mm in the adult orthodontic cohort was 6.2%. Females (vs males; OR: 9.07; [95% CI: 1.19-69.23]) and Skeletal Class II (vs Classes I and III; OR: 4.57 [95% CI: 1.58-13.20]) demonstrated significantly higher odds of unexpected condylar displacement (P < .05). Condylar resorption was not evident in participants with condylar displacement and did not interfere with the final orthodontic outcome.Conclusions: Unexpected 3D condylar displacement exceeding 1 mm was noted in approximately 6% of the adult orthodontic patient cohort. However, the condylar displacement per se was not associated with condylar resorption and did not cause clinical concerns.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonsurgical orthodontic treatment using bone-anchored maxillary protraction in a patient with unilateral cleft lip and palate. 对一名单侧唇腭裂患者使用骨锚上颌牵引进行非手术正畸治疗。

The Angle orthodontist Pub Date : 2024-09-26 DOI: 10.2319/012424-56.1

Niloufar Azami, Philip Farha, Flavio Uribe

引用次数: 0

Strategic treatment for a patient with missing lateral incisor and first molar accompanied by posterior scissor bite and an impacted premolar. 为一名侧切牙和第一磨牙缺失并伴有后方剪刀式咬合和前磨牙撞击的患者提供战略性治疗。

The Angle orthodontist Pub Date : 2024-09-01 DOI: 10.2319/011024-30.1

Boxi Yan, Xuejiao Liu, Kaiyuan Xu, Fanfan Dai

引用次数: 0

The OHStat guidelines for reporting observational studies and clinical trials in oral health research: manuscript checklist. OHStat口腔健康研究观察性研究和临床试验报告指南：手稿核对表。

The Angle orthodontist Pub Date : 2024-09-01 DOI: 10.2319/OHStat_Guidelines.1

A M Best, T A Lang, B L Greenberg, J C Gunsolley, E Ioannidou

{"title":"The OHStat guidelines for reporting observational studies and clinical trials in oral health research: manuscript checklist.","authors":"A M Best, T A Lang, B L Greenberg, J C Gunsolley, E Ioannidou","doi":"10.2319/OHStat_Guidelines.1","DOIUrl":"10.2319/OHStat_Guidelines.1","url":null,"abstract":"Adequate and transparent reporting is necessary for critically appraising published research, yet ample evidence suggests that the design, conduct, analysis, interpretation, and reporting of oral health research could be greatly improved. Accordingly, the Task Force on Design and Analysis in Oral Health Research, statisticians and trialists from academia and industry, identified the minimum information needed to report and evaluate observational studies and clinical trials in oral health: the OHStat guidelines. Drafts were circulated to the editors of 85 oral health journals and to Task Force members and sponsors and discussed at a December 2020 workshop attended by 49 researchers. The guidelines were subsequently revised by the Task Force writing group. The guidelines draw heavily from the Consolidated Standards for Reporting Trials (CONSORT), Strengthening the Reporting of Observational Studies in Epidemiology, and CONSORT harms guidelines, and incorporate the SAMPL guidelines for reporting statistics, the CLIP principles for documenting images, and the GRADE indicating the quality of evidence. The guidelines also recommend reporting estimates in clinically meaningful units using confidence intervals, rather than relying on P values. In addition, OHStat introduces seven new guidelines that concern the text itself, such as checking the congruence between abstract and text, structuring the discussion, and listing conclusions to make them more specific. OHStat does not replace other reporting guidelines; it incorporates those most relevant to dental research into a single document. Manuscripts using the OHStat guidelines will provide more information specific to oral health research.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 5","pages":"479-487"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11363988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of dentoalveolar changes following maxillary incisor intrusion with one vs two anterior miniscrews in subjects with gummy smile: a randomized clinical trial. 牙龈笑受试者使用一个与两个前迷你螺钉植入上颌切牙后牙槽骨变化的评估：随机临床试验。

The Angle orthodontist Pub Date : 2024-09-01 DOI: 10.2319/121323-825.1

Manikandan M, Surya Kanta Das, Ashish Kumar Barik, Subash Chandra Raj, Mitali Mishra, Sunil Kumar Rath, Sushila Sah

{"title":"Evaluation of dentoalveolar changes following maxillary incisor intrusion with one vs two anterior miniscrews in subjects with gummy smile: a randomized clinical trial.","authors":"Manikandan M, Surya Kanta Das, Ashish Kumar Barik, Subash Chandra Raj, Mitali Mishra, Sunil Kumar Rath, Sushila Sah","doi":"10.2319/121323-825.1","DOIUrl":"10.2319/121323-825.1","url":null,"abstract":"Objectives: To examine dentoalveolar changes following intrusion of maxillary incisors with one or two anterior miniscrews in subjects with gummy smile and deep bite.Materials and methods: Forty-three subjects were selected and divided into two groups: group I (22 subjects: 15 women, 7 men; mean age 30 ± 10 years) received one miniscrew between the upper central incisors, and group II (21 subjects: 16 women, 5 men; mean age 30 ± 10 years) received two miniscrews between the canines and lateral incisors. Dentoalveolar parameters, including amount of intrusion, root resorption, incisor inclination, alveolar bone thickness, and buccal alveolar crest height (cementoenamel junction to labial alveolar crest), were evaluated using cone-beam computed tomography scans obtained before and after intrusion. The intergroup comparison was analyzed using a paired t-test and unpaired t-test to determine significant changes within and between groups.Results: The amount of intrusion was significantly greater in group II than in group I (P < .05). No statistically significant differences were found between groups I and II for changes in incisor inclination, labial bone thickness, and buccal alveolar crest height (P > .05).Conclusions: Maxillary central and lateral incisor intrusion was significantly greater in subjects treated with two miniscrews. Root resorption of the maxillary central incisors was notably greater in subjects with one miniscrew, while maxillary lateral incisor resorption was greater in subjects treated with two miniscrews.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 5","pages":"522-531"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11363986/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A skeletal Class III young adult with severe maxillary transverse deficiency treated with maxillary skeletal expander. 一名患有严重上颌骨横向缺损的 III 级骨骼发育不良的年轻成人，接受了上颌骨骨骼扩张器治疗。

The Angle orthodontist Pub Date : 2024-08-28 DOI: 10.2319/012724-71.1

Fengcong Wang, Ping Liu, Bo Ding

引用次数: 0

Class III correction and enhanced periodontal health with aligner treatment in a 53-year-old patient. 一名 53 岁的患者通过矫正器治疗获得了 III 级矫正，牙周健康状况也得到了改善。

The Angle orthodontist Pub Date : 2024-08-28 DOI: 10.2319/020524-91.1

Ibtehal Almagrami, Maryam Almaqrami, LingSu Zhu, Yiqiang Qiao

{"title":"Class III correction and enhanced periodontal health with aligner treatment in a 53-year-old patient.","authors":"Ibtehal Almagrami, Maryam Almaqrami, LingSu Zhu, Yiqiang Qiao","doi":"10.2319/020524-91.1","DOIUrl":"https://doi.org/10.2319/020524-91.1","url":null,"abstract":"In this case report, we describe the successful camouflage treatment of a 53-year-old female with dental and skeletal Class III malocclusion combined with anterior crossbite, gingival recession, and mobility of the lower incisors, using clear aligners. The treatment involved periodontal debridement followed by orthodontic treatment. The mandibular posterior teeth were distalized to correct the anterior crossbite and to establish Class I molar relationships. During treatment, the mandibular incisors were intruded, and the mandibular occlusal plane underwent a clockwise rotation due to slight extrusion of the maxillary buccal segments and distalization of the mandibular posterior teeth. Following treatment, all objectives were achieved, including resolution of the anterior crossbite, significant reduction of gingival recession and tooth mobility, and improved functional occlusion. The dental and skeletal Class III malocclusion was corrected, and the marginal alveolar bone dehiscence was significantly reduced. The results remained stable over a 3-year retention period, with enhanced molar intercuspation and gingival growth progression. This case adds to the evidence supporting the adaptability and effectiveness of clear aligners in treating orthodontic patients with compromised periodontium. The treatment outcomes support that orthodontic treatment using clear aligners, combined with periodontal monitoring, can assist in managing alveolar bone defects, gingival recession, and tooth mobility.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Active vertical control with skeletal anchorage for optimizing facial profile in a severe Class II high-angle protrusion case. 在一个严重的 II 类高角度前突病例中，通过骨骼锚定进行主动垂直控制，以优化面部轮廓。

The Angle orthodontist Pub Date : 2024-08-22 DOI: 10.2319/041524-298.1

Johnny Liaw, Shin-Huei Wang, Hou-Kun Chen, Yi-Jane Chen

引用次数: 0