International Orthodontics最新文献

{"title":"Multipurpose miniscrew-anchored palatal appliance combined with a fixed multibracket appliance to correct a Class II Division 2 malocclusion with maxillary constriction and impacted upper canine in a 13-year-old girl: A case report","authors":"Mario Palone ,&nbsp;Ilaria Gasperoni ,&nbsp;Francesca Cremonini ,&nbsp;Giuliano B Maino ,&nbsp;Emanuele Paoletto ,&nbsp;Mattia Pramstraller ,&nbsp;Luca Lombardo","doi":"10.1016/j.ortho.2025.100984","DOIUrl":"10.1016/j.ortho.2025.100984","url":null,"abstract":"<div><div>This case report describes the successful non-extraction orthodontic treatment of a 13-year-old female patient affected by a Class II Division 2 malocclusion, maxillary constriction and a unilateral impacted maxillary canine. The miniscrew-assisted palatal expansion (MAPA) system was used for precise palatal miniscrew placement, achieving bicortical engagement. A hybrid T-Rex rapid palatal expander was then employed to achieve both skeletal expansion and molar distalization without requiring patient compliance. After that, tooth 2.3 was surgically exposed and orthodontically repositioned with a miniscrew-supported extrusion cantilever on a fixed vestibular appliance and piggyback mechanics. The orthodontic treatment was completed in a total of 31 months, yielding satisfactory intraoral results. Precise digital planning for palatal miniscrew insertion was instrumental in achieving bicortical anchorage, enabling the efficient use of a single multipurpose, miniscrew-supported palatal appliance.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100984"},"PeriodicalIF":1.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143347999","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":"In vitro comparison of the effects of direct attachment shape and location on forces and moments generated by thermoplastic aligners during simulated torque movement","authors":"Janine Magura ,&nbsp;Amin Akbari ,&nbsp;Megann Lear ,&nbsp;Alexandra Bojrab ,&nbsp;George Eckert ,&nbsp;Jie Chen ,&nbsp;R. Scott Conley ,&nbsp;Hakan Turkkahraman","doi":"10.1016/j.ortho.2025.100982","DOIUrl":"10.1016/j.ortho.2025.100982","url":null,"abstract":"<div><h3>Introduction</h3><div>The aim of this study was to investigate the effects of direct attachment shape and location on the forces and moments generated by thermoplastic aligners during simulated maxillary central incisor torque.</div></div><div><h3>Materials and methods</h3><div>A total of 7 typodonts were digitally printed with different attachment design and locations. Five clear aligners were fabricated for each typodont and placed on an orthodontic force tester (OFT) with the maxillary central incisor rotated palatally 1° around the incisal edge. Forces and moments were measured 2 times by the load cells. Analysis of variance (Anova) was used to determine the effects of group, tooth, and the group-by-tooth interaction on the outcomes; A two-sided 5% significance level was used for all tests. Analyses were performed using SAS version 9.4 (SAS Institute Inc., Cary, NC, USA).</div></div><div><h3>Results</h3><div>The two-way interactions between group and tooth were significant (<em>P</em> <!-->&lt;<!--> <!-->0.001) for all outcomes except facial/palatal moment around the X axis (M_x) (<em>P</em> <!-->&gt;<!--> <!-->0.05). The horizontal ellipsoid attachment at the middle third generated the highest M_x (−25.74<!--> <!-->±<!--> <!-->8.93<!--> <!-->Nmm) with facial crown/palatal root, while the rectangular attachment at the middle third yielded the lowest Mx (3.31<!--> <!-->±<!--> <!-->12.92<!--> <!-->Nmm).</div></div><div><h3>Conclusions</h3><div>Changing attachment shape and location had a significant effect on the forces and moments generated during simulated maxillary incisor torque. The best design for the incisor torque movement was found to be the horizontal ellipsoid attachment at the middle third. Besides the desired torque moment, all attachment shape and location combinations produced a vertical extrusive force as a side effect.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100982"},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101120","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":"Accuracy and reliability comparison between different intraoral scanning devices in patients with permanent dentition: A prospective clinical study","authors":"Heloísa Nelson Cavalcanti ,&nbsp;Vinícius Ribeiro de Almeida Lázaro ,&nbsp;Vinícius Merino da Silva ,&nbsp;Silvio Augusto Bellini-Pereira ,&nbsp;Guilherme Janson ,&nbsp;Daniela Garib ,&nbsp;José Fernando Castanha Henriques","doi":"10.1016/j.ortho.2025.100983","DOIUrl":"10.1016/j.ortho.2025.100983","url":null,"abstract":"<div><h3>Objectives</h3><div>This study primarily aimed to compare the accuracy and secondarily the reliability of different intraoral scanning (IOS) devices using intra- and interarch linear measurements of three-dimensional digital dental models.</div></div><div><h3>Methods</h3><div>Digital dental models were divided into three groups based on their acquisition method: group T (GT) using the Trios® IOS, group P (GP) using the Panda® (IOS), and the control group (CG) consisting of plaster models digitized with the E3® desktop scanner. Two examiners measured the following variables using the OrthoAnalyzer® software: mesiodistal tooth width, clinical crown height, intercanine, interpremolar and intermolar distances, arch perimeter, arch length, overjet and overbite. Intra- and inter-examiner reliability was assessed with the intraclass correlation coefficient (ICC) and Bland-Altman test. Intergroup comparisons were performed using the analysis of variance (Anova) followed by Tukey tests (<em>P</em> <!-->&lt;<!--> <!-->0.05).</div></div><div><h3>Results</h3><div>The sample consisted of 25 volunteers (11 men, 14 women) with a mean age of 29.6<!--> <!-->years. Overall, the measurements of digital models obtained from the Trios®, Panda® and the E3® desktop scanner were comparable. For intermolar distance, the mean and standard deviation were as follows: GT (52.4<!--> <!-->±<!--> <!-->3.55), GP (52.6<!--> <!-->±<!--> <!-->3.56), and CG (52.1<!--> <!-->±<!--> <!-->3.96) with <em>P</em> <!-->=<!--> <!-->0.896 for the maxillary arch, and GT (45.8<!--> <!-->±<!--> <!-->3.87), GP (46.3<!--> <!-->±<!--> <!-->4.40), and CG (46.3<!--> <!-->±<!--> <!-->4.08), with <em>P</em> <!-->=<!--> <!-->0.848 for the mandibular arch. No statistically significant differences were observed regarding this and other variables. Measurements showed good to excellent reliability for both Trios® and Panda® IOS.</div></div><div><h3>Conclusion</h3><div>The three scanning devices Trios®, Panda® and E3® presented similar and adequate accuracy and reliability.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100983"},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101121","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":"Management of juvenile idiopathic arthritis in a 15-year-old patient: A digitally designed Herbst appliance combined with rapid maxillary expansion for transversal and sagittal correction","authors":"Alberto Barenghi ,&nbsp;Alessia Dell’Oro ,&nbsp;Matteo Pellegrini ,&nbsp;Andrea Scribante ,&nbsp;Hans Ulrik Paulsen ,&nbsp;Francesco Spadari ,&nbsp;Alberto Di Blasio","doi":"10.1016/j.ortho.2025.100970","DOIUrl":"10.1016/j.ortho.2025.100970","url":null,"abstract":"<div><div>Juvenile idiopathic arthritis (JIA) is the most frequent systemic inflammatory disease involving temporomandibular joints in children. The reported prevalence of temporomandibular joint involvement in patients with juvenile idiopathic arthritis varies from 17% to 87% depending on the population studied, the subtypes, and the method for diagnosis. A 15-year-old girl was referred to the Department of Oral and Maxillofacial Surgery and the Department of Orthodontics of Parma University, Italy, for the evaluation and treatment of a three-dimensional facial deformity secondary to mandibular hypoplasia. The treatment strategy involved the use of a digitally designed Herbst appliance to promote mandibular growth and address facial asymmetry, occlusal plane deviation, and dental malocclusion. This phase was followed by fixed orthodontic therapy to finalize dental alignment and ensure occlusal stability. At the conclusion of the treatment, the patient demonstrated substantial functional and aesthetic improvements, with stability maintained during a three-year follow-up period. This case underscores the efficacy of combining functional therapeutic protocols with advanced digital technologies in the multidisciplinary management of JIA-associated dentofacial anomalies, offering a less invasive alternative to surgical interventions.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100970"},"PeriodicalIF":1.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143075515","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":"Protraction of a second molar and a mesially-impacted third molar into the adjacent first-molar extraction site through mini-implant anchored Albert protraction loop with the aid of alveolar ridge augmentation","authors":"Xuechun Yuan,&nbsp;Hong Zhou,&nbsp;Lingling Pu,&nbsp;Qi Fan,&nbsp;Shangyou Wen,&nbsp;Wenli Lai,&nbsp;Hu Long","doi":"10.1016/j.ortho.2025.100966","DOIUrl":"10.1016/j.ortho.2025.100966","url":null,"abstract":"<div><div>Protraction of a mandibular second molar to substitute the adjacent missing first molar is challenging in clinical practice. In this case report, we demonstrated a 21-year-old patient with an untreatable periapical lesion of the mandibular right first molar. The adjacent mandibular second molar had normal root length and the third molar was mesially-impacted. Two treatment alternatives were available: implant restoration of the first molar with poor prognosis or mesialization of the second and third molars to substitute the first and second molars. The patient finally chose the second treatment option. Ridge augmentation with bone grafting was performed to deal with alveolar atrophy at the first-molar extraction site. Molar protraction was accomplished with a novel protraction loop appliance (Albert loop) that was anchored onto an interradicular mini-implant. At the end of the treatment, excellent buccal interdigitations and good root parallelism were achieved. Molar protraction into the atrophic alveolar site can be efficiently accomplished through Albert protraction loop anchored on a mini-implant and ridge augmentation.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100966"},"PeriodicalIF":1.8,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143042412","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":"What is the most effective method for reducing pain during debonding procedures? A systematic review","authors":"Bahaa Aldeen Jeha,&nbsp;Rania Haddad","doi":"10.1016/j.ortho.2025.100969","DOIUrl":"10.1016/j.ortho.2025.100969","url":null,"abstract":"<div><h3>Objective</h3><div>This study aimed to investigate the most effective methods in controlling pain during debonding procedures.</div></div><div><h3>Material and methods</h3><div>Electronic searches in published and unpublished studies were performed. Restricted to the English language and publication date up to 23/3/2024, the searches in published literature covered the following databases: MEDLINE, PubMed, EMBASE, Tripe, Web of Science, Scopus and PubMed Central. However, unpublished literature was searched at ClinicalTrials.gov, National Research Register, and ProQuest Dissertations and Theses. Lists of all eligible studies were checked for further scrutiny. Risk of bias for randomized and non-randomized control trials was assessed using ROB2 and ROBINS Cochrane tools.</div></div><div><h3>Results</h3><div>Thirteen RCTs and two non-RCTs were included. All the reviewed articles studied the pain during debonding events and included 886 patients aged between 12–65. They used different scales such as VAS, NRS, Wong–Baker faces, and others scales. Two studies have shown that the lift-off plier causes less pain than other pliers when comparing different types of dental instruments. However, when comparing different adjunctive techniques, two studies have found that using a wafer causes less pain, while two studies have reported no significant difference between methods and one study has found that using finger pressure causes less pain. In addition, three separate studies have found that utilizing an ultrasonic device, as well as a thermal device and laser radiation, can lead to lower pain scores. Furthermore, two studies have demonstrated that using medication has a positive impact on reducing pain.</div></div><div><h3>Conclusions</h3><div>According to reported evidence, applying finger pressure is more effective in relieving pain in the anterior teeth, while wafer biting is more effective in the posterior teeth. Pain-relieving medications like paracetamol or ibuprofen can also effectively reduce debonding pain. Promising procedures, such as using diode or Er-YAG lasers, and thermal devices, may also be effective, but further studies are needed to confirm their efficacy. The protocol of this systematic review was registered with the PROSPERO International Database under ID number CRD42024529190. This review follows the guidelines established by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and the instructions provided in the Cochrane Handbook.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100969"},"PeriodicalIF":1.8,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143029928","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":"CBCT-based assessment of apical root resorption and alveolar bone height following orthodontic treatment of Class I moderate crowding with labial vs. lingual fixed appliances in young adults: A randomized controlled trial","authors":"Jehad M. Kara-Boulad ,&nbsp;Ahmad S. Burhan ,&nbsp;Mohammad Y. Hajeer ,&nbsp;Fehmieh R. Nawaya ,&nbsp;Samer T. Jaber","doi":"10.1016/j.ortho.2025.100968","DOIUrl":"10.1016/j.ortho.2025.100968","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Objectives&lt;/h3&gt;&lt;div&gt;Apical root resorption and alveolar bone loss are potential complications associated with orthodontic treatment. This study aimed to assess apical root resorption and alveolar bone height following orthodontic treatment of moderate crowding with labial vs. lingual fixed appliances using CBCT imaging.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Subjects and methods&lt;/h3&gt;&lt;div&gt;All patients meeting the eligibility criteria were included from March 2022 to June 2022 at the University of Damascus Faculty of Dentistry, Department of Orthodontics. The study involved patients diagnosed with Class I malocclusion and moderate crowding in both arches that could be treated on a non-extraction basis. Participants were randomly divided into two groups. One group was treated using lingual appliances (DTC® IN-Tendo JK-SL, DTC Medical Apparatus Co., Hangzhou, China) with a 0.018-inch slot. The sequence of archwires used included 0.012″, 0.014 0.016″ nickel-titanium, 0.016″&lt;!--&gt; &lt;!--&gt;×&lt;!--&gt; &lt;!--&gt;0.022″ TMA, 0.016″&lt;!--&gt; &lt;!--&gt;×&lt;!--&gt; &lt;!--&gt;0.022″ stainless steel, and 0.017″&lt;!--&gt; &lt;!--&gt;×&lt;!--&gt; &lt;!--&gt;0.025″ stainless steel. The other group received treatment with labial straight-wire appliances (AO Mini Master® – MBT System, metal brackets, Sheboygan, WI, USA) also featuring a 0.018-inch slot. The sequence of archwires used was 0.012″, 0.014″, 0.016″ nickel-titanium, 0.016″&lt;!--&gt; &lt;!--&gt;×&lt;!--&gt; &lt;!--&gt;0.022″ nickel-titanium, 0.016 and 0.017″&lt;!--&gt; &lt;!--&gt;×&lt;!--&gt; &lt;!--&gt;0.025″ stainless steel. The CBCT images were taken before the commencement of treatment (T0) and one day following the end of treatment (T1). The apical root resorption and alveolar bone height of the upper and lower teeth were assessed at these assessment times. Paired-sample &lt;em&gt;t&lt;/em&gt;-test used to analyse the intergroup differences, while a two-sample &lt;em&gt;t&lt;/em&gt;-test was employed to assess intragroup changes. The significance level was set at &lt;em&gt;P&lt;/em&gt; &lt;!--&gt;&lt;&lt;!--&gt; &lt;!--&gt;0.004 after adjustment using Bonferroni's correction.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;Out of forty patients, nineteen patients in each group were included in the statistical analysis (16 men and 24 women; mean age: 21.3&lt;!--&gt; &lt;!--&gt;years). In both groups, there was a significant decrease in the lengths of all studied teeth at T1 (&lt;em&gt;P&lt;/em&gt; &lt;!--&gt;&lt;&lt;!--&gt; &lt;!--&gt;0.004). The apical resorption was significantly greater in the lingual appliance group for lower central and lateral incisors compared to the labial appliance group (0.64&lt;!--&gt; &lt;!--&gt;mm, 0.7, respectively). The mean lingual bone loss in the lingual appliances was statistically greater than that in the labial appliances for lower central incisors (0.53&lt;!--&gt; &lt;!--&gt;mm), while the mean buccal bone loss in the labial appliance group was statistically greater than that in the lingual appliance group for the lower lateral incisors (0.52&lt;!--&gt; &lt;!--&gt;mm).&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusions&lt;/h3&gt;&lt;div&gt;The use of DTC® lingual or AO Mini Master® labial brackets with archwire sequences is associated with clin","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100968"},"PeriodicalIF":1.8,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013818","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 the mesiodistal angulation of maxillary canines based on their impaction sector in panoramic radiographs: A cross-sectional study","authors":"Victoria Diaz Celis ,&nbsp;María Cecilia Fernández Canedo ,&nbsp;Luis Ernesto Arriola-Guillén","doi":"10.1016/j.ortho.2025.100967","DOIUrl":"10.1016/j.ortho.2025.100967","url":null,"abstract":"<div><h3>Introduction</h3><div>The complexity of treating impacted maxillary canines varies based on their angulation and position within the dental arch. The aim of this research was to compare the mesiodistal angulation of maxillary canines according to their impaction sector.</div></div><div><h3>Methods</h3><div>This cross-sectional study evaluated 229 impacted maxillary canines in 171 panoramic radiographs from two private radiology centres in Uruguay and Chile of individuals of both sexes aged 11 years and older with impacted maxillary canines. The radiographs were taken with two panoramic radiography equipment. All the images were evaluated using Planmeca Romexis® software. Two investigators were trained and calibrated to perform all the measurements at two measurement times. The Ericson and Kurol method was used to classify the impaction sector into five sectors and the Wardorf method was used to measure the mesiodistal impaction angle and, finally, the level of impaction was measured with respect to the root of the lateral incisor. Student <em>t</em>-test, Anova and multiple linear regression were used. <em>P</em> <!-->&lt;<!--> <!-->0.05.</div></div><div><h3>Results</h3><div>The impaction angle of sectors 1 and 2 was (70.03°<!--> <!-->±<!--> <!-->9.65°) and of sectors 3, 4 and 5 it was 52.21°<!--> <!-->±<!--> <!-->16.60° (<em>P</em> <!-->&lt;<!--> <!-->0.001) while at the cervical level of the lateral incisor root it was 74.15°, 68.04° at mid-level and 57.39° at the apical level (<em>P</em> <!-->&lt;<!--> <!-->0.001). The impaction angle decreases 13.02° in sectors 3, 4 and 5 (<em>P</em> <!-->&lt;<!--> <!-->0.001), for each year the impaction angle decreases 0.30° (<em>P</em> <!-->=<!--> <!-->0.001), and as the level of impaction becomes more apical the impaction angle decreases 7.46°.</div></div><div><h3>Conclusions</h3><div>Impacted maxillary canines are more horizontal the closer they are to the midline or the higher the level of impaction. Likewise, this horizontality tends to increase over time. All these considerations should be taken into account by orthodontists when planning their treatments.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100967"},"PeriodicalIF":1.8,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013826","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":"Non-surgical correction of an adult Class II high-angle with occlusal plane cant by four compromised permanent first molars extraction, preadjusted lingual appliance and miniscrews: A case report","authors":"Enrico Albertini ,&nbsp;Anna Colonna ,&nbsp;Paolo Albertini ,&nbsp;Luca Lombardo ,&nbsp;Ryuzo Fukawa","doi":"10.1016/j.ortho.2024.100965","DOIUrl":"10.1016/j.ortho.2024.100965","url":null,"abstract":"<div><div>This case report describes a complex full-step asymmetrical Class II division 1 high-angle in an adult patient treated by extraction of compromised first molars with a preadjusted lingual appliance. Since the patient presented severe sagittal and vertical discrepancies combined with an Izard orthofrontal profile with upper lip protrusion, an extraction camouflage was performed with the twofold aim of obtaining ideal occlusal relationship and profile improvement, correcting occlusal plane cant by selective intrusion with interradicular miniscrews. Appropriate biomechanical strategies, including extraction choice and anchorage control during space closure, were needed to achieve the planned results. This case report demonstrates the possibility of solving successfully severe sagittal and vertical discrepancies with significant asymmetric component in adult patient without surgical treatment by means of a completely invisible technique, with the extraction of the most compromised teeth in both arches. This report also underlines the need for careful planning during both diagnostic and treatment phases, with appropriate skeletal anchorage management, in order to obtain the best results.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100965"},"PeriodicalIF":1.8,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143013827","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":"Orthodontic treatment of deep bite in mixed dentition and/or early permanent dentition: What about stability? – A systematic review","authors":"Boutaina El Guennouni,&nbsp;Afaf Houb-Dine,&nbsp;Hajar Ben Mohimd,&nbsp;Fatima Zaoui","doi":"10.1016/j.ortho.2024.100956","DOIUrl":"10.1016/j.ortho.2024.100956","url":null,"abstract":"<div><h3>Introduction</h3><div>Deepbite is a vertical malocclusion found alone or in association with other types of sagittal and transverse disorders. With a high relapse tendency, deepbite is considered one of the most challenging malocclusions to treat. It is commonly found in mixed dentition with increased prevalence of 21.3% compared to 14.1% in temporary dentition, thus resulting on unfavourable consequences, preventing the mandible from its full growth potential. Therefore, this systematic review aims to investigate the efficiency of conducting an early correction of deepbite malocclusion in mixed and early permanent dentition on the long-term postretention outcomes.</div></div><div><h3>Material and methods</h3><div>An electronic search extending from 2000 to July 2024, was performed on the following databases Medline via PubMed, Web of Science, Science Direct and Embase. The search was established on a well-defined research question following PICO principle: population, intervention, comparator and outcome. Search evaluation and the assessment of risk of bias were undertaken in each study following its type and design.</div></div><div><h3>Results</h3><div>Six studies were included for qualitative analysis, with overall moderate RoB. Two studies treated deepbite in a single phase orthopaedic treatment with eruption guidance appliance in early mixed dentition; two studies orthodontically corrected deepbite at early permanent dentition using fixed multibracket appliance and two studies used a combination of orthopaedic treatment followed by orthodontic treatment targeting both subjects in early mixed and early permanent dentition.</div></div><div><h3>Conclusion</h3><div>Patients treated in late mixed to early permanent dentition presented better efficacy and greater stability of outcomes than patients treated in the early mixed phase of dentition. More studies must be conducted to support and confirm the results of the included studies.</div></div><div><h3>Prospero under the registration ID</h3><div>CRD42023408820.</div></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"23 2","pages":"Article 100956"},"PeriodicalIF":1.8,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142915905","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}