American Journal of Orthodontics and Dentofacial Orthopedics最新文献

{"title":"Comparison of the effects of total arch intrusion treatment in adolescents and adults: A pilot study.","authors":"Hye-Young Sim, Jung-Sub An, Min-Ho Jung","doi":"10.1016/j.ajodo.2025.05.010","DOIUrl":"https://doi.org/10.1016/j.ajodo.2025.05.010","url":null,"abstract":"<p><strong>Introduction: </strong>This study aimed to examine the effectiveness of total arch intrusion (TAI) treatment in patients with skeletal Class II malocclusion with retruded mandible and compare the treatment changes between adolescents and adults.</p><p><strong>Methods: </strong>We retrospectively analyzed cephalometric radiographs of 30 patients who underwent TAI using miniscrews. Growing adolescent patients were classified as group 1 (G1), whereas nongrowing patients were classified as group 2 (G2). There were 16 patients in G1 and 14 in G2, and the average ages at the start of treatment were 13.2 years and 27.8 years, respectively. Pretreatment and posttreatment cephalometric measurements and changes were compared, and the correlation among these measurements was analyzed.</p><p><strong>Results: </strong>Significant decreases were observed in mandibular plane angle (P <0.001); however, no significant difference was observed between the 2 groups. There was a significantly greater increase in SNB (P <0.05) and facial height ratio (P <0.01) and a decrease in ANB (P <0.01) in G1. The pogonion to nasion perpendicular line increased more in G1 (5.11 mm) than in G2 (3.88 mm), but this difference was not statistical significant. In correlation analysis, the mandibular plane rotation had a strong correlation with changes in Pog to N perp in G1, but there was a weak correlation in G2.</p><p><strong>Conclusions: </strong>TAI was an effective treatment option to improve the retrognathic profile. The adolescent group showed significantly greater anteroposterior skeletal improvement and profile changes than the adult group with TAI.</p>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144994452","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":"Zip those lips","authors":"Laurance Jerrold","doi":"10.1016/j.ajodo.2025.06.001","DOIUrl":"10.1016/j.ajodo.2025.06.001","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Pages 387-389"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912262","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)00323-3","DOIUrl":"10.1016/S0889-5406(25)00323-3","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Page 393"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912265","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":"Shear bond strength of 3-dimensional-printed orthodontic brackets","authors":"Gökhan Serhat Duran ,&nbsp;Kübra Gülnur Topsakal ,&nbsp;Yusufcan Akgün ,&nbsp;Nurgül Karadas Bakirhan ,&nbsp;Serkan Görgülü","doi":"10.1016/j.ajodo.2025.03.008","DOIUrl":"10.1016/j.ajodo.2025.03.008","url":null,"abstract":"<div><h3>Introduction</h3><div>This in vitro study aimed to evaluate the shear bond strength (SBS) and adhesive remnant index (ARI) of 3-dimensional-printed orthodontic brackets with 3 different base designs and to examine the surface morphologic differences of remaining adhesives using scanning electron microscopy (SEM).</div></div><div><h3>Methods</h3><div>Sixty maxillary premolar teeth (n = 20 per group) were randomly allocated into 3 bracket base design groups: (1) custom, (2) macroretentive, and (3) standard. After digital scanning of the teeth, the brackets were printed using a MAX UV DLP 3D printer (Asiga, Sydney, Australia). Each bracket was bonded using Transbond XT composite and light-cured for 10 seconds with a light-emitting diode curing unit (Valo; Ultradent, South Jordan, Utah). Subsequently, SBS testing was performed using a universal testing machine at a 1 mm/min crosshead speed, and fracture loads were recorded in megapascals (MPa). After debonding, ARI scores were evaluated under a digital microscope by a blinded investigator and reevaluated after 2 weeks for reliability. In addition, bracket bases and tooth surfaces were examined under a high-resolution SEM (30 kV, 20 mm working distance).</div></div><div><h3>Results</h3><div>The highest SBS values were observed in the custom base design group (group A, 8.05 ± 4.69 MPa), followed by the macroretentive group (group B, 6.31 ± 3.80 MPa) and the standard group (group C, 5.91 ± 6.09 MPa). The differences between groups A and C were statistically significant (<em>P</em> = 0.017). ARI scores revealed that in groups A and B, most adhesive remained on the tooth (ARI score 2 predominated), whereas group C demonstrated a more variable ARI distribution. In addition, according to the SEM results, most adhesives have remained on the teeth in all groups.</div></div><div><h3>Conclusions</h3><div>Custom mesh designs in 3D-printed orthodontic brackets significantly enhance bond strength and adhesive retention, making them a promising option for clinical use. Future studies should investigate their performance under conditions that simulate the oral environment to validate their clinical applicability.</div></div>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Pages 379-386"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912261","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":"David L. Turpin, 1938-2025","authors":"Matthew Turpin,&nbsp;Greg Huang","doi":"10.1016/j.ajodo.2025.07.002","DOIUrl":"10.1016/j.ajodo.2025.07.002","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Pages 390-391"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912263","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)00312-9","DOIUrl":"10.1016/S0889-5406(25)00312-9","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Page A8"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912239","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":"It is highly contagious","authors":"Peter M. Greco","doi":"10.1016/j.ajodo.2025.05.009","DOIUrl":"10.1016/j.ajodo.2025.05.009","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Page 261"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911670","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":"Comparison of bonding failure rates of mandibular retainers after 2 enamel preparations – sandblasting vs pumicing: An 18-month randomized controlled trial","authors":"Quentin Kamm ,&nbsp;Estelle Phonchareun ,&nbsp;Matthieu Esquenet ,&nbsp;Frédéric Rafflenbeul ,&nbsp;François Séverac ,&nbsp;Yves Bolender","doi":"10.1016/j.ajodo.2025.04.015","DOIUrl":"10.1016/j.ajodo.2025.04.015","url":null,"abstract":"<div><h3>Introduction</h3><div>Several protocols have been suggested in the literature to bond fixed retainers without a clear emerging consensus. This study aimed to compare, over 18 months, the bonding failure rate of mandibular canine-to-canine Zachrisson-type retainer after either sandblasting or pumicing the enamel surface before bonding.</div></div><div><h3>Methods</h3><div>Ethical approval was obtained. Patients about to enter their retention phase were recruited from October 2019 to January 2021 at the local University hospital. Patients were block-randomized either in the 50 μm aluminum oxide particles sandblasting group (experimental) or the pumicing group (control). Eligibility criteria included minimal age of 11, presence of all mandibular incisors and canines, no active carious lesion, no restoration nor periodontal disease. All wires were bonded by the same operator. The primary outcome was any first-time retainer bonding failure, recorded by 2 assessors at 3, 6, 9, 12, 15, and 18 months after bonding. Wire fractures and unexpected adverse movements were registered as secondary outcomes. The randomization sequence was generated via the CleanWeb platform (Telemedicine Technologies S.A.S, Paris, France) by blocks of variable size. Assessors and statisticians were blinded to group assignments. Groups were compared with Pearson’s χ² test. A Kaplan-Meier survival analysis was performed, and groups were compared with a log-rank test.</div></div><div><h3>Results</h3><div>Eighty-eight patients (mean age, 16.5 years; interquartile range, 3 years) were recruited, and 44 patients were randomized into each group. Eighty-two patients (experimental, 38; control, 44) were finally analyzed. At 18 months, the number of first-time bonding failures was respectively 3/38 (7.9%) and 11/44 (25.0%) among the sandblasting and pumicing groups (Pearson’s χ² test, <em>P</em> = 0.04). Relative risk with a 95% confidence interval was 0.32 (0.10-0.96). The 18-month survival 93% rate in the sandblasting group was significantly different from the 75% rate in the pumicing group (log-rank test, <em>P</em> = 0.02). No wire fracture was recorded during this 18-month follow-up. No serious harm was observed except for some unexpected adverse dental movements in 7.1% of patients.</div></div><div><h3>Conclusions</h3><div>Enamel sandblasting leads to a statistically and clinically significant 3-fold reduction in the bonding failure rate of mandibular bonded retainers compared with simple pumicing.</div></div><div><h3>Registration</h3><div>The trial was registered on <span><span>ClinicalTrials.gov</span><svg><path></path></svg></span> ID NCT03954145.</div></div><div><h3>Protocol</h3><div>The protocol was not published before trial commencement.</div></div><div><h3>Funding</h3><div>No funding or conflict of interests to be declared.</div></div>","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Pages 262-272"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911671","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":"September 2025 Continuing Education","authors":"Dr Allen H. Moffitt (CE Editor)","doi":"10.1016/j.ajodo.2025.07.001","DOIUrl":"10.1016/j.ajodo.2025.07.001","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Pages 392.e1-392.e2"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912264","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":"In memory of David L. Turpin: AJO-DO Editor-in-Chief, 2000-2010 and Interim Editor-in-Chief, 2013-2014","authors":"Jae Hyun Park (Editor-in-Chief)","doi":"10.1016/j.ajodo.2025.07.006","DOIUrl":"10.1016/j.ajodo.2025.07.006","url":null,"abstract":"","PeriodicalId":50806,"journal":{"name":"American Journal of Orthodontics and Dentofacial Orthopedics","volume":"168 3","pages":"Pages 259-260"},"PeriodicalIF":3.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911669","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}