Journal of Orthodontics最新文献

{"title":"Vertical and sagittal changes produced by an expander with differential opening versus a fan-type expander: A post-hoc analysis of a randomised controlled trial.","authors":"Rodrigo Teixeira, Camila Massaro, Daniela Garib","doi":"10.1177/14653125231208465","DOIUrl":"10.1177/14653125231208465","url":null,"abstract":"<p><strong>Objective: </strong>To compare the sagittal and vertical cephalometric effects in participants treated with an expander with differential opening (EDO) versus the fan-type expander (FE).</p><p><strong>Design: </strong>Two-arm parallel randomised clinical trial (RCT).</p><p><strong>Methods: </strong>This study comprised cone-beam computed tomography-derived cephalometric images from 48 participants from a RCT. The sample was randomly allocated into two groups. The study was single-blinded. In total, 24 participants were treated with rapid maxillary expansion (RME) using EDO and 24 participants underwent RME using FE. The primary outcomes were the dentoskeletal vertical changes produced by RME. The secondary outcomes were the dentoskeletal sagittal changes. A cephalometric analysis was performed before treatment and 1 or 6 months after the active phase of RME using Dolphin Imaging Software. Intergroup comparisons of interphase changes were performed using the <i>t</i>-test and Mann-Whitney U test (<i>P</i> < 0.05).</p><p><strong>Results: </strong>The final sample comprised 24 patients (11 men, 13 women; mean age = 7.6 ± 0.9 years) in the EDO group and 24 patients (10 boys, 14 girls; mean age = 7.8 ± 0.9 years) in the FE group. Both expanders produced a similar clockwise rotation of the mandible (FMA; mean difference [MD] = 0.09°, 95% confidence interval [CI] = -1.01 to 0.84). In the FE group, a greater increase of the SNA angle was observed after expansion compared to the EDO group (MD = 1.04°, 95% CI = -1.90 to -1.58). More palatal torque of maxillary incisors was observed in the FE group (MD = 1.32°, 95% CI = 0.05-2.56). Of the participants, 54% reported a little discomfort during the active phase of treatment and 46% of the participants did not report any discomfort.</p><p><strong>Conclusion: </strong>Both expanders produced similar vertical cephalometric changes. FEs caused slightly more maxillary anterior displacement after expansion with a compensatory palatal torque of the maxillary incisors, compared to the EDOs. However, the amount of sagittal difference was not clinically relevant.</p><p><strong>Trial registration: </strong>The trial was registered at ClinicalTrials.gov, under the identifier NCT03705871.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"388-396"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412675","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}

{"title":"Perception of maxillary incisor inclination and its correlation with dental cephalometric measurements.","authors":"Sara Palmares, Rui Caseiro, Rui Pereira, Luís Jardim","doi":"10.1177/14653125241248663","DOIUrl":"10.1177/14653125241248663","url":null,"abstract":"<p><strong>Objective: </strong>To correlate the clinical perception of maxillary incisor inclination from photographs of the smiling face with cephalometric measurements, using conventional incisor axis reference points and crown reference points.</p><p><strong>Design: </strong>Cross-sectional study.</p><p><strong>Setting: </strong>Department of Orthodontics, School of Dentistry, University of Lisbon (Portugal).</p><p><strong>Participants: </strong>Eight orthodontists.</p><p><strong>Methods: </strong>The perception of maxillary incisor inclination of 47 female patients (mean age 23.4 ± 1.5 years) was evaluated by eight orthodontists. The participants' photographs (smiling frontal, smiling three-quarter and smiling profile) were shown to each assessor and a continuous visual analogue rating scale was used to assess the perception of maxillary incisor inclination. Pearson's correlation and linear regression were calculated between each cephalometric measurement and the perception of incisor inclination.</p><p><strong>Results: </strong>Anatomical crown inclination measurements U1ac-FH (r = 0.854; <i>P</i> < 0.01) and U1ac-SN (r = 0.845; <i>P</i> < 0.01) had the highest correlation values with the assessors' perception of maxillary incisor inclination. Conventional incisor axis measurements showed the lowest correlation values (r = 0.668-0.756).</p><p><strong>Conclusion: </strong>Cephalometric measurements of the labial surface of the anatomical crown of the maxillary incisors showed the strongest correlations with the clinical perception of maxillary incisor inclination from photographs. For optimal aesthetics, the inclination of the labial surface of maxillary incisor crown should be evaluated.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"354-365"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11636024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140858195","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}

{"title":"Guest Editorial.","authors":"Andrew DiBiase","doi":"10.1177/14653125241291966","DOIUrl":"https://doi.org/10.1177/14653125241291966","url":null,"abstract":"","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":"51 4","pages":"343-344"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813599","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}

{"title":"Comparison of 3D Easy Box cone-beam computed tomography analysis with 2D Modified Easy Box on OPG as a prognostic tool for impacted maxillary canines: A pilot study.","authors":"Rochelle Dias, Himanshu Kanungo, Mukesh Gupta, Kratika Mishra, Akanksha Soni, Aayush Jaiswal","doi":"10.1177/14653125241242138","DOIUrl":"10.1177/14653125241242138","url":null,"abstract":"<p><strong>Objective: </strong>To assess and compare the validity of 2D modified Easy Box and measurement of the Beta angle on standard conventional orthopantomogram (OPG) versus 3D cone-beam computed tomography (CBCT) OPG-constructed view.</p><p><strong>Design: </strong>A retrospective agreement study.</p><p><strong>Methods: </strong>The aim of this study was to construct an Easy Box on a standard conventional OPG and to validate this novel method by comparing it with the Easy Box method on 3D CBCT. After approval from the Ethics Committee, OPG and CBCT radiographs were obtained for the study from departmental records and five private practices in the same location (Indore, India). The radiographs were selected based on record availability and with written consent from the participants before the commencement of the study. The records were analysed to enable a comparison and to assess the accuracy of Easy Box construction on both 3D CBCT and standard conventional OPG radiographs. The location of the impacted canine within the Easy Box boundaries and the measurement of the Beta angle were determined on both views.</p><p><strong>Results: </strong>A perfect agreement was obtained for the comparison of 3D Easy Box CBCT analysis with 2D modified Easy Box on OPG for impacted maxillary canines (Kappa = 1.0). A Bland-Altman (LoA) analysis showed no proportional bias in the comparison of the Beta angle on 3D and 2D OPG radiographs.</p><p><strong>Conclusion: </strong>Beta angle and 2D modified Easy Box on a conventional OPG yield similar results when compared to Easy Box on 3D CBCT OPG-constructed view. The standard OPG was valuable and cost-effective, particularly in the early stages of diagnosis and treatment planning, either as a substitute or when CBCT was unavailable.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"345-353"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140335998","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}

{"title":"Editorial.","authors":"Jayne Harrison","doi":"10.1177/14653125241291965","DOIUrl":"https://doi.org/10.1177/14653125241291965","url":null,"abstract":"","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":"51 4","pages":"341-342"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813543","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}

{"title":"Letter to the Editor: A Systematic Review a Day, Keeps the Reader Away!","authors":"Samer Mheissen","doi":"10.1177/14653125241268746","DOIUrl":"https://doi.org/10.1177/14653125241268746","url":null,"abstract":"","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":"51 4","pages":"424-427"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813601","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}

{"title":"Adult orthodontic patients: What is important to them?","authors":"Aoibheann Wall, Neil Hillyard, Fiona S Ryan, Susan J Cunningham","doi":"10.1177/14653125241256975","DOIUrl":"10.1177/14653125241256975","url":null,"abstract":"<p><strong>Objective: </strong>To understand patients' motivations for pursuing treatment, to appreciate what information patients seek and to explore potential factors affecting decision making in adults considering, undergoing or who have had orthodontic treatment in the private sector.</p><p><strong>Design: </strong>Cross-sectional questionnaire study.</p><p><strong>Setting: </strong>Online questionnaire.</p><p><strong>Participants: </strong>A total of 209 (83% women, 16% men, 1% preferred not to say) completed responses were received.</p><p><strong>Methods: </strong>Once piloted, the final survey was made available online to adults in the United Kingdom (UK) and Republic of Ireland (RoI) who were either considering having orthodontic treatment, currently undergoing treatment or had recently completed treatment in the private sector.</p><p><strong>Results: </strong>The most commonly selected motivating factor was to 'improve the appearance of my teeth' (82%). The information sought related predominantly to treatment duration (64%), potential end results (56%), types of appliances that were available (55%) and cost (52%). The two most commonly reported social factors that had influenced participants to consider treatment were 'seeing myself on social media' (31%) and 'it is more socially acceptable to have braces' (31%).</p><p><strong>Conclusion: </strong>While this area remains relatively underexplored in the literature, it is crucial to develop a comprehensive understanding due to the increasing number of adults seeking orthodontic treatment. This study not only reinforces the existing knowledge regarding adults seeking orthodontic treatment, such as the predominant role of aesthetics as a motivating factor, but also introduces some novel insights. Specifically, we highlight the influence of social factors on decision-making processes and the importance of effectively communicating the duration of treatment to patients.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"366-374"},"PeriodicalIF":1.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141300809","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}

{"title":"Inter-septal bone reduction: Impact on space closure, root resorption and canine angulation during en-masse retraction - a randomised controlled trial.","authors":"Kurapati Jyothsna, Kiran Kumar Dodda, Naresh Vattikunta, Eswar Prasad Singamsetty, Jashva Vamsi Kogila, Katragadda Saveri, Sai Vyshnavi Palakolanu, Bharath Reddy","doi":"10.1177/14653125241283053","DOIUrl":"https://doi.org/10.1177/14653125241283053","url":null,"abstract":"<p><strong>Objective: </strong>To compare the space closure, root resorption and canine angulation during en-masse retraction of the labial segment after extraction of first premolars with or without interseptal bone reduction distal to the maxillary canines.</p><p><strong>Design: </strong>A single-centre, parallel randomised control trial included 16 participants with a mean age of 21.5 years. Participants were allocated into treatment groups using blocked randomisation, and blinding was employed for outcome assessors and data analysts.</p><p><strong>Interventions: </strong>The control group consisted of eight participants who underwent therapeutic extraction of maxillary first premolars, while the experimental group included eight participants who underwent interseptal bone reduction immediately after premolar extraction. En-masse retraction was performed using conventional friction mechanics with absolute anchorage in both groups.</p><p><strong>Outcomes: </strong>Measurements of space closure were conducted over 3 consecutive months during retraction. The time taken for total space closure was recorded. Cone-beam computed tomography scans were taken before and 3 months after retraction to assess root resorption and canine angulation.</p><p><strong>Results: </strong>The experimental group demonstrated a significant increase in the rate of en-masse retraction compared to the control group over 3 months (mean difference [MD] = 1.09 mm, 95% confidence interval [CI] = 0.78-1.40), with an overall space closure rate of MD 0.26 mm/month (95% CI = 0.17-0.34). However, these changes were of minimal clinical significance. The change in canine angulation (MD = 4.50°, 95% CI = -1.61-10.61) did not exhibit statistical significance. Substantial root resorption was observed in six maxillary anterior teeth, with no difference between the groups.</p><p><strong>Conclusion: </strong>Interseptal bone reduction is a minimally invasive surgical technique, resulting in a notably accelerated rate of en-masse retraction in the experimental group over 3 months. However, despite the statistical significance, the clinical impact on overall space closure was minimal, with a difference of only 0.26 mm/month observed between the groups. Interseptal bone reduction did not affect the change in canine angulation and root resorption.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"14653125241283053"},"PeriodicalIF":1.4,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751142","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}

{"title":"Is occlusal contact re-established within 6 months after bonding of a fixed anterior bite plane in adolescents with a Class II division 2 incisor relationship? A randomised controlled trial.","authors":"Evelyn Dunbar, Elinor Chalmers, Gautham Sivamurthy, Gavin Revie, Grant T McIntyre, Peter A Mossey","doi":"10.1177/14653125241277832","DOIUrl":"https://doi.org/10.1177/14653125241277832","url":null,"abstract":"<p><strong>Objective: </strong>To determine if re-establishment of occlusal contact was achieved within 6 months after insertion of a fixed anterior bite plane in individuals with Class II division 2 incisor relationship, and to evaluate the occlusal and vertical skeletal changes and acceptance of the intra-oral scanner and bite plane.</p><p><strong>Design: </strong>Single-centre two-arm parallel group randomised controlled trial with 1:1 allocation to intervention and control groups.</p><p><strong>Setting: </strong>Dundee Dental Hospital and Research School, UK.</p><p><strong>Participants: </strong>A total of 38 participants aged 9-16 years (11 males, 27 females) with Class II division 2 incisor relationship and increased overbite (greater than one-third incisor overlap).</p><p><strong>Methods: </strong>Participants were randomised to intervention (n = 19) and control (n = 19) groups using block randomisation. The intervention group had a fixed anterior bite plane, and the occlusion and vertical facial dimensions were monitored with intra-oral scans, lateral cephalograms and photographs. The control group received no treatment and occlusal and vertical facial dimensions were monitored with scans and photographs. Questionnaires were completed by participants and parents/carers. An intention-to-treat analysis was planned.</p><p><strong>Results: </strong>The overbite reduced in all participants in the intervention group (mean initial overbite: 5.07 mm, 95% confidence interval [CI] = 4.15-6.00; mean overbite after 6 months: 2.45 mm, 95% CI = 1.93-2.96). There was a mean incisor intrusion of 0.29 mm (95% CI = 0.17-0.42) and mean eruption of the first molars of 0.23 mm (95% CI = 0.09-0.37). There was no significant change in incisor inclination or vertical skeletal change. Feedback from participants and their parents/carers were generally positive.</p><p><strong>Conclusion: </strong>Fixed anterior bite planes effectively reduce an increased overbite in adolescents with a Class II division 2 incisor relationship, due to a combination of incisor intrusion and molar eruption with no change in incisor inclination or vertical skeletal change. Intra-oral scanning and fixed anterior bite planes are acceptable in adolescents.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"14653125241277832"},"PeriodicalIF":1.4,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348690","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}

{"title":"Does enamel deproteinisation with 10% papain affect shear bond strength of orthodontic adhesives: a randomised controlled trial.","authors":"Vishal Sharma, Naval Bawaskar, Shweta Bhat, Rakesh Kontham, Harshal Chandorikar, Swapnil Ghodke","doi":"10.1177/14653125241279461","DOIUrl":"https://doi.org/10.1177/14653125241279461","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the effect of 10% papain as an enamel deproteinising agent on the shear bond strength (SBS) of three orthodontic adhesives: Transbond XT, resin-modified glass ionomer cement (RMGIC) and Biofix.</p><p><strong>Design: </strong>Single-centre, double-blinded, split-mouth randomised controlled trial.</p><p><strong>Setting: </strong>Department of Orthodontics and Dentofacial Orthopaedics, Nair Hospital Dental College, Mumbai, India.</p><p><strong>Participants: </strong>A total of 20 participants requiring bilateral premolar extraction for fixed orthodontic treatment in both the maxillary and mandibular arches were included in this study.</p><p><strong>Methods: </strong>In total, 80 premolars from the above-mentioned participants were divided into four groups as follows: group A: Transbond XT deproteinised with 10% papain gel; group B: Biofix deproteinised with 10% papain gel; group C: RMGIC deproteinised with 10% papain gel; and group D: Transbond XT without enamel deproteinisation as a control group-bonded as instructed by the manufacturer. After deproteinisation, brackets were bonded and after a follow-up period of 28 days, the teeth were extracted. The SBS was then measured using the Universal Testing Machine. The force needed to shear the bracket was documented, and bond strengths were subsequently calculated in megapascals (MPa). The obtained results were subjected to statistical analysis and one-way ANOVA was performed to compare the mean SBS between the groups. Subsequently, pairwise comparisons were conducted using Tukey's post hoc test.</p><p><strong>Results: </strong>There was a statistically significant difference in SBS among all groups (<i>P</i> = 0.002). The SBS of TransXT with deproteinisation increased significantly compared with TransXT without deproteinisation (<i>P</i> = 0.03). There was no statistically significant difference between the SBS of TransXT without deproteinisation and RMGIC (<i>P</i> = 0.47) and Biofix (<i>P</i> = 0.39), both with deproteinisation.</p><p><strong>Conclusion: </strong>The use of 10% papain for deproteinising enamel improved the SBS of all materials. Deproteinising improved the SBS of RMGIC and Biofix to the level of TransXT without deproteinisation.</p>","PeriodicalId":16677,"journal":{"name":"Journal of Orthodontics","volume":" ","pages":"14653125241279461"},"PeriodicalIF":1.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348689","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}