American Journal of Orthodontics and Dentofacial Orthopedics最新文献

{"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}

{"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}

{"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}

{"title":"Optimizing mandibular second molar mesialization: A comparative analysis of stress distribution and displacement using tie-back and temporary skeletal anchorage device-assisted mechanisms with a nonlinear finite element model.","authors":"Cem Olmez, Koray Halicioglu, Gulay Dumanli Gok, Osman Koc","doi":"10.1016/j.ajodo.2025.04.019","DOIUrl":"https://doi.org/10.1016/j.ajodo.2025.04.019","url":null,"abstract":"<p><strong>Introduction: </strong>This study aimed to determine the optimal approach for mandibular second molar (M2M) mesialization in mandibular first molar extraction patients under 3 distinct scenarios-corticotomy-assisted or nonassisted-by evaluating 2 mesialization techniques (temporary skeletal anchorage device [TSAD]) supported coil spring and tie-back). The finite element method was used to compare stress distribution and displacement patterns.</p><p><strong>Methods: </strong>Six models were designed to simulate M2M mesialization. In the first 3 models (hook models), the force was applied using posted arches with tie-backs to the M2M hook. In the final 3 models (TSAD models), a force was applied using a TSAD placed between the canine and premolar teeth, employing power arms extending from the M2M with closed-coil springs targeting the molar's center of resistance. The tie-back and power arm mechanism was tested and compared alone (models I-IV), with mesial incision (models II-V) and circumferential incision (models III and VI). Both decreasing (200, 100, and 50 g) and continuous (200 g) forces were used along 3 s/steps. In the nonlinear analysis, the total and directional displacement (along the x-, y-, and z-axes) and von Mises stress values were measured.</p><p><strong>Results: </strong>TSAD models exhibited greater tooth displacement across all 3 axes with crown and roots translated mesially while showing minimal distal tipping (2.27° × 10^-2 to 2.63° × 10^-2). In addition, these models demonstrated greater lingual rotation and more pronounced extrusion on the mesial side. In contrast, hook models primarily exhibited mesial tilting rather than uniform mesial translation, with approximately 7-fold less overall extrusion and half the amount of lingual rotation compared with TSAD models. Piezocision failed to accelerate tooth displacements in both models. TSAD models generated slightly higher stress on the molar tooth and alveolar socket. In TSAD models, mesial and circumferential incisions reduced miniscrew stress by nearly half.</p><p><strong>Conclusions: </strong>TSAD mechanics enabled greater mesial translation with minimal distal tipping, whereas hook models exhibited more mesial tilting but reduced overall extrusion and rotation. TSAD models showed greater alveolar bone stress response. Circumferential incisions with TSAD anchorage minimized unwanted movements and alveolar bone stress response. Given the inherent limitations of the finite element method in fully replicating clinical outcomes, these findings should be interpreted with caution and validated through clinical studies.</p>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144235846","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":"Authors’ response","authors":"Miri Chung,&nbsp;Wenyi Zhang,&nbsp;Yanfei Zhu,&nbsp;Zhengzhan Lv,&nbsp;Lingyong Jiang","doi":"10.1016/j.ajodo.2025.03.004","DOIUrl":"10.1016/j.ajodo.2025.03.004","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"167 6","pages":"Page 626"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195050","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}