{"title":"Evaluation of the effect of trimline types of clear aligners on esthetic perception using eye-tracking technology and visual analog scale","authors":"Merve Kurnaz, Nuray Akbıyık Bayam, Semir Öztürk, Sibel Biren","doi":"10.1016/j.ajodo.2025.03.007","DOIUrl":"10.1016/j.ajodo.2025.03.007","url":null,"abstract":"<div><h3>Introduction</h3><div>This study aimed to compare the impact of clear aligners with different edge finishes on esthetic perception across various specialties, using eye-tracking technology and the visual analog scale.</div></div><div><h3>Methods</h3><div>Three different trimlines are designed at the gingival border: short scallop, straight, and straight extended. The designed aligners were taken in the mouth without a retractor, in a dark environment with a softbox. The prepared images were turned into a survey via the Google Docs document service. The survey questioning esthetic success according to a 5-point Likert scale was sent to the participants via the online channel. Eye tracking will also take place online with Sticky (version 1.4, Tobii Pro Lab; Tobii Technology AB, Danderyd, Sweden), the online form of the Tobii X2-60 eye-tracking software. The data obtained in this study were analyzed using the SPSS software (version 22; IBM, Armonk, NY). Mann-Whitney U test and Kruskal-Wallis H test with Bonferroni correction were used.</div></div><div><h3>Results</h3><div>No significant difference was observed among the specialties in terms of scores (<em>P</em> >0.05). In both male and female subjects, all surfaces showed significant differences across trimlines for the number of fixations, number of visits, and time viewed. In addition, Region 2 exhibited significant differences in the number of fixations, number of visits, and time until noticed (<em>P</em> <0.05). In males, region 3 showed significant differences across trimlines for the number of fixations, number of visits, and time viewed (<em>P</em> <0.05). In females, time until noticed also differed significantly (<em>P</em> <0.05). In both male and female subjects, region 4 showed significant differences across trimlines for the number of fixations, number of visits, and time viewed (<em>P</em> <0.05).</div></div><div><h3>Conclusions</h3><div>No differences were found among the specialty groups using the conventional survey method. Scalloped and straight trimlines were generally noticed.</div></div>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 2","pages":"Pages 243-252"},"PeriodicalIF":2.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antonio Magni, Holly J. Moon, Peter Mah, Vicente Hernandez-Soler, Andrew Casertano, Carla A. Evans
{"title":"Modernizing the communication process","authors":"Antonio Magni, Holly J. Moon, Peter Mah, Vicente Hernandez-Soler, Andrew Casertano, Carla A. Evans","doi":"10.1016/j.ajodo.2025.04.002","DOIUrl":"10.1016/j.ajodo.2025.04.002","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 2","pages":"Pages 123-125"},"PeriodicalIF":2.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tingting Zhao, Min Wang, Peter Ngan, Zhendong Tao, Xueqian Yu, Fang Hua, Hong He
{"title":"Is adenotonsillar hypertrophy associated with dentofacial morphology? A systematic review and meta-analyses.","authors":"Tingting Zhao, Min Wang, Peter Ngan, Zhendong Tao, Xueqian Yu, Fang Hua, Hong He","doi":"10.1016/j.ajodo.2025.04.024","DOIUrl":"https://doi.org/10.1016/j.ajodo.2025.04.024","url":null,"abstract":"<p><strong>Introduction: </strong>As a common cause of upper airway obstruction in children, adenotonsillar hypertrophy (ATH) has been hypothesized to adversely affect dentofacial development and morphology. This systematic review aimed to summarize the existing evidence regarding the association between ATH and dentofacial characteristics of children.</p><p><strong>Methods: </strong>Four databases (PubMed, Embase, Web of Science, and VIP Chinese Journal Database) were searched from inception to November 1, 2024, for cross-sectional studies that compared the dental or craniofacial characteristics of children with and without adenoid hypertrophy (AH) and/or tonsillar hypertrophy (TH). The Newcastle-Ottawa Scale for Cross-Sectional Studies was used to assess the methodologic quality of included studies. Meta-analyses were performed with the random-effects model.</p><p><strong>Results: </strong>Thirty-six studies were included in this review. According to meta-analyses, the mandibular plane angle (SN-MP: mean difference [MD] = 2.20° [95% confidence interval {CI} 1.47-2.92]; P <0.00001), articular angle (ArGoMe: MD, 1.23° [95% CI, 0.68-1.79]; P <0.0001) were significantly greater in children with AH and/or TH. No significant differences were found between the ANB angle between the 2 groups (MD, 0.31° [95% CI, -0.35 to 0.61]; P = 0.59). However, the SNA (MD, -0.30° [95% CI, -0.53 to -0.06]; P = 0.01) and SNB angle (MD, -0.78° [95% CI, -1.33 to -0.24]; P = 0.005) were found to be significantly smaller in children with AH and/or TH. Regarding dental characteristics, the rate of Angle Class II and III malocclusions (relative risk = 1.29 [95% CI, 1.14-1.45]; P <0.0001) and open bite (relative risk = 1.65 [95% CI, 1.21-2.25]; P = 0.001) were found to be higher in the AH and/or TH children. In addition, the width between the maxillary first molars (MD, -1.34 mm [95% CI, -2.12 to -0.56]; P = 0.0008) was found to be smaller both in AH and TH children.</p><p><strong>Conclusions: </strong>On the basis of evidence of low to very low certainty, children with ATH tend to exhibit craniofacial characteristics such as sagittal maxillary and mandibular retrognathia and an increased mandibular plane angle. In addition, children with ATH children appear to have a higher prevalence of Class II and III malocclusions, open bite, and a narrower maxillary arch width compared with their non-ATH counterparts. However, these findings must be interpreted with caution because of the limited quality and consistency of the available evidence. The statistically significant differences identified in this review are relatively small when compared with population deviations, raising questions about their clinical significance. Further high-quality studies with standardized methodologies are needed to confirm these associations and clarify their clinical relevance.</p>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chunmiao Zhang, Hailin Zhu, Hu Long, Yuchao Shi, Jixiang Guo, Meng You
{"title":"Deep learning-assisted comparison of different models for predicting maxillary canine impaction on panoramic radiography.","authors":"Chunmiao Zhang, Hailin Zhu, Hu Long, Yuchao Shi, Jixiang Guo, Meng You","doi":"10.1016/j.ajodo.2025.05.008","DOIUrl":"https://doi.org/10.1016/j.ajodo.2025.05.008","url":null,"abstract":"<p><strong>Introduction: </strong>The panoramic radiograph is the most commonly used imaging modality for predicting maxillary canine impaction. Several prediction models have been constructed based on panoramic radiographs. This study aimed to compare the prediction accuracy of existing models in an external validation facilitated by an automatic landmark detection system based on deep learning.</p><p><strong>Methods: </strong>Patients aged 7-14 years who underwent panoramic radiographic examinations and received a diagnosis of impacted canines were included in the study. An automatic landmark localization system was employed to assist the measurement of geometric parameters on the panoramic radiographs, followed by the calculated prediction of the canine impaction. Three prediction models constructed by Arnautska, Alqerban et al, and Margot et al were evaluated. The metrics of accuracy, sensitivity, specificity, precision, and area under the receiver operating characteristic curve (AUC) were used to compare the performance of different models.</p><p><strong>Results: </strong>A total of 102 panoramic radiographs with 102 impacted canines and 102 nonimpacted canines were analyzed in this study. The prediction outcomes indicated that the model by Margot et al achieved the highest performance, with a sensitivity of 95% and a specificity of 86% (AUC, 0.97), followed by the model by Arnautska, with a sensitivity of 93% and a specificity of 71% (AUC, 0.94). The model by Alqerban et al showed poor performance with an AUC of only 0.20.</p><p><strong>Conclusions: </strong>Two of the existing predictive models exhibited good diagnostic accuracy, whereas the third model demonstrated suboptimal performance. Nonetheless, even the most effective model is constrained by several limitations, such as logical and computational challenges, which necessitate further refinement.</p>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144651139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Information for readers","authors":"","doi":"10.1016/S0889-5406(25)00236-7","DOIUrl":"10.1016/S0889-5406(25)00236-7","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 1","pages":"Page A8"},"PeriodicalIF":2.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Directory: AAO Officers and Organizations","authors":"","doi":"10.1016/S0889-5406(25)00244-6","DOIUrl":"10.1016/S0889-5406(25)00244-6","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 1","pages":"Page 119"},"PeriodicalIF":2.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"July 2025 Continuing Education","authors":"Dr Allen H. Moffitt (CE Editor)","doi":"10.1016/j.ajodo.2025.05.003","DOIUrl":"10.1016/j.ajodo.2025.05.003","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 1","pages":"Pages 116.e1-116.e2"},"PeriodicalIF":2.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Invaluable discretion","authors":"Peter M. Greco","doi":"10.1016/j.ajodo.2025.04.004","DOIUrl":"10.1016/j.ajodo.2025.04.004","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 1","pages":"Page 1"},"PeriodicalIF":2.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The evidentiary value of orthodontic records","authors":"Laurance Jerrold","doi":"10.1016/j.ajodo.2025.04.003","DOIUrl":"10.1016/j.ajodo.2025.04.003","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 1","pages":"Pages 110-115"},"PeriodicalIF":2.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyun Ji Lee, Sanghee Lee, Jae Hyun Park, Ji-Hyun Lee, Chooryung J Chung, Kee-Joon Lee, Hyung-Seog Yu, Kyung-Ho Kim
{"title":"Periodontal changes in supraerupted maxillary molars after orthodontic intrusion using miniscrews: A retrospective study.","authors":"Hyun Ji Lee, Sanghee Lee, Jae Hyun Park, Ji-Hyun Lee, Chooryung J Chung, Kee-Joon Lee, Hyung-Seog Yu, Kyung-Ho Kim","doi":"10.1016/j.ajodo.2025.05.005","DOIUrl":"https://doi.org/10.1016/j.ajodo.2025.05.005","url":null,"abstract":"<p><strong>Introduction: </strong>This study aimed to analyze periodontal changes in supraerupted maxillary molars that underwent orthodontic intrusion with miniscrews during the treatment and the postretention period.</p><p><strong>Methods: </strong>Forty supraerupted maxillary molars were treated with buccal and palatal miniscrews and power chain loading of 100 g for orthodontic intrusion. Clinical examinations and periapical radiography were performed pretreatment, posttreatment, 6 months posttreatment, and 2 years posttreatment to measure the following parameters: clinical crown length, sulcus probing depth, bone probing depth (BPD), attached gingiva width, root length, alveolar crest level, and bone support. The extent of intrusion and relapse was measured by superimposing the dental casts. Periodontal care was performed regularly during and after treatment for all patients, and the gingival indexes were maintained <1.</p><p><strong>Results: </strong>Immediately after treatment, clinical crown length decreased, and sulcus probing depth and BPD increased compared with the baseline; however, 6 months posttreatment, they returned to the baseline levels, except for palatal BPD. The attached gingiva width remained unchanged at all time points. Root length significantly decreased between pretreatment and posttreatment, but as the amount was <1 mm, it was considered clinically insignificant. Six months after the treatment, the alveolar crest level and bone support showed significant improvements compared with the baseline. All periodontal parameters showed no statistically significant differences between 6 months and 2 years posttreatment, indicating stability after 6 months posttreatment.</p><p><strong>Conclusions: </strong>Orthodontic intrusion of supraerupted maxillary molars can enhance the periodontium in the long term.</p>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144259295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}