American Journal of Orthodontics and Dentofacial Orthopedics American Journal of Orthodontics and Dentofacial Orthopedics RSS feed.
- Missing data, part 7. Pitfalls in doing multiple imputationby Ian R. White, Nikolaos Pandis, Tra My Pham on 01/12/2022 at 12:00 am
Previous articles have explained the principles of multiple imputation (MI) and how to make the right choices in MI to get valid inferences from the data.1-6 However, there are still pitfalls — things that can go wrong and lead to wrong answers. This article explains what these pitfalls are and how to spot them.
- Effect of reciprocal headgear forces on the calvarium: A finite element studyby Althaf T. Rasheed, Palukunnu P. Biswas, M. Anandan Sreya on 01/12/2022 at 12:00 am
Orthopedic appliances continue to be used for various sagittal, vertical, and transverse corrections of the maxilla. Although cranial growth can continue to adulthood, no study has drawn attention to the effects of headgear forces on the calvarium, in which anchorage is taken. This study focused on the different biomechanical responses on the calvarium of young children wearing a high-pull headgear of varying forces, using a 3-dimensional finite element analysis and the possible implications of such changes on the human skull.
- Queries regarding gingival recession in mandibular anterior teeth in patients with Class II malocclusion treated with elastics and Twin Force applianceby Aditya Talwar, Harpreet Grewal, Ritu Duggal, Isha Duggal on 01/12/2022 at 12:00 am
We read with great interest the article titled “Gingival recession in mandibular anterior teeth in patients with Class II malocclusion treated with elastics and Twin Force appliance” (Colet R, Cotrin P, Oliveira RC, Valarelli FP, Gobbi de Oliveira RC, Salmeron S, et al. Gingival recession in mandibular anterior teeth in patients with Class II malocclusion treated with elastics and Twin Force appliance. Am J Orthod Dentofacial Orthop 2022;162:529–537). We appreciate and thank the authors for discussing an interesting aspect of Class II correction.
- Authors’ responseby Paridhi Gupta, A. Bhagyalakshmi, B.S. Avinash, Akila Prashant, N. Raghunath on 01/12/2022 at 12:00 am
- Questions regarding injectable platelet-rich fibrin effect on the rate of canine retraction and alkaline phosphatase levelsby Gayatri Ganesh on 01/12/2022 at 12:00 am
Thank you for publishing this interesting study (Gupta P, Bhagyalakshmi A, Avinash BS, Prashant A, Raghunath N. Evaluation of injectable platelet-rich fibrin effect on the rate of canine retraction and alkaline phosphatase levels: an in-vivo study. Am J Orthod Dentofacial Orthop 2022;162:735–743). However, I would like further clarification regarding some aspects of the study.
- Authors’ responseby Rosangela Colet, Paula Cotrin, Fabrício Pinelli Valarelli, Karina Maria Salvatore Freitas on 01/12/2022 at 12:00 am
Thank you for your interest in our study. It will be a pleasure to discuss and clarify the aspects raised regarding our paper.
- Authors’ responseby Paridhi Gupta, A. Bhagyalakshmi, B.S. Avinash, Akila Prashant, N. Raghunath on 01/12/2022 at 12:00 am
1. Yes, growth does play an important role. Using the lateral cephalogram of the patients, Hassel and Farman’s Cervical Vertebral Maturity Index was calculated. Patients with Cervical Vertebral Maturity Index stage ≥4 were selected.
- Should I or shouldn’t I?by Laurance Jerrold on 01/12/2022 at 12:00 am
Recently a reader wrote me and asked the following:LarryIsn’t it the standard of care, or at least very typical, to take a final cephalometric film upon finishing a case? I always thought that it was, however a recently hired assistant, who previously worked in a number of orthodontic offices over the years, told me that she has never worked for an orthodontist who did so. What gives? Should I or shouldn’t I be taking post treatment cephs? I’m only in practice a couple of years and I really don’t want to start out on the wrong foot.
- Directory: AAO Officers and Organizationson 01/12/2022 at 12:00 am
- Authors’ responseby Taner Ozturk, Husniye Gumus on 01/12/2022 at 12:00 am
Thank you, dear authors, for your questions. This study aimed to evaluate the videos on YouTube about early orthodontic treatment. It is stated in the article that there are different social media tools, but the article was prepared in the field of YouTube. It has been predicted that this is because the YouTube video-sharing platform has been evaluated more in studies among existing popular platforms.1-3 Exclusion criteria were determined with reference to previously published studies using a similar method.
- Indirect vs direct bonding of mandibular fixed retainers in orthodontic patientsby Leelan Kanwal, Wafa Idrees, Aqeel Ahmed, Rashna Hoshang Sukhia on 01/12/2022 at 12:00 am
In the August 2022 issue of the American Journal of Orthodontics and Dentofacial Orthopedics, Cornelis et al (Cornelis MA, Egli F, Bovali E, Kiliaridis S, Cattaneo PM. Indirect vs direct bonding of mandibular fixed retainers in orthodontic patients: comparison of retainer failures and posttreatment stability. A 5-year follow-up of a single-center randomized controlled trial. Am J Orthod Dentofacial Orthop 2022;162:152-61.e1) conducted a randomized controlled trial to assess the number of failures of direct and indirect bonded mandibular fixed retainers at a 5-year follow-up.
- It’s not just a dream—it’s a plan…by Myron D. Guymon on 01/12/2022 at 12:00 am
Several weeks ago, the American Association of Orthodontists (AAO) Board of Trustees and AAO senior staff met. Although it’s not unusual for the Board to meet, this meeting was very different. The operational aspects of a typical board meeting were taken care of quickly, and then a generative exercise was undertaken.
- Authors’ responseby Marie A. Cornelis, Fabienne Egli, Efstathia Bovali, Stavros Kiliaridis, Paolo M. Cattaneo on 01/12/2022 at 12:00 am
We thank the authors of the letter for their interest in our study. Please find below our answers.The generalizability of these results might be limited, since the research project was undertaken in a university environment, and the retainers were bonded by a postgraduate student. However, the failure rate seemed to be independent of the experience of the clinician because debondings of retainers were not more frequent in patients recruited at the beginning of the recruitment period than at the end.
- Table of Contentson 01/12/2022 at 12:00 am
- Editorial Boardon 01/12/2022 at 12:00 am
- Information for readerson 01/12/2022 at 12:00 am
- Questions regarding long-term effects on the alveolar bone with bone-anchored and tooth-anchored rapid palatal expansionby Mukesh Kumar, Manish Goyal, Tanisha Singh, Kalpit Shaha on 01/12/2022 at 12:00 am
An article published in April 2022 (Mehta S, Wang D, Upadhyay M, Vich ML, Yadav S. Long-term effects on alveolar bone with bone-anchored and tooth-anchored rapid palatal expansion. Am J Orthod Dentofacial Orthop 2022;161:519-28) was a retrospective study to examine the long-term effects on the alveolar bone with bone-anchored and tooth-anchored rapid palatal expansion.
- Orthodontics social media calling for help: How big is the problem?by Gil Guilherme Gasparello, Sergio Luiz Mota-Júnior, Luiz Gustavo Healt, Orlando Motohiro Tanaka on 01/12/2022 at 12:00 am
We congratulate the authors of the recent article published in the July issue of the American Journal of Orthodontics and Dentofacial Orthopedics (Ozturk T, Gumus H. YouTube as an information and education source for early orthodontic treatment. Am J Orthod Dentofacial Orthop 2022;162:e123-132) addressing social media as a crucial source of information about early orthodontic treatment. Previous studies have reported that YouTube is not the only social network with its posts tested for reliability regarding some subjects and showed concerning results.
- Be thereby Peter M. Greco on 01/12/2022 at 12:00 am
It was a rough start to a Monday from the very beginning. First, you couldn’t find your car keys after you thought you had put them in a safe spot to keep them from your new puppy. Then there was that accident on the road you used to travel to your office. The police stopped all traffic for 15 minutes. That delayed you long enough to annoy Mrs Drake, that contentious patient who always arrives a half hour early for her appointment, as she paced your reception room waiting for you to arrive. You could feel her glare as you entered your office through your front door.
- Questions regarding the effect of injectable platelet-rich fibrin and alkaline phosphatase levels on the rate of tooth movementby Saraa L. Angel, Madhanraj Selvaraj, Abhijeet A. Jaiswal, Karthik Sennimalai on 01/12/2022 at 12:00 am
We read the article by Gupta et al (Gupta P, Bhagyalakshmi A, Avinash BS, Prashant A, Raghunath N. Evaluation of injectable platelet-rich fibrin effect on the rate of canine retraction and alkaline phosphatase levels: an in-vivo study. Am J Orthod Dentofacial Orthop 2022;162:735–743.) with great interest and appreciate their effort. However, although the results are promising, a few clarifications are needed to facilitate future clinical applications and research.
- Duration of canine retraction with fixed appliances: A systematic review and meta-analysisby Fidaa Wazwaz, Jadbinder Seehra, Guy H. Carpenter, Spyridon N. Papageorgiou, Martyn T. Cobourne on 01/12/2022 at 12:00 am
Space closure is a challenging and time-consuming phase of orthodontic treatment with fixed appliances. This systematic review evaluated canine retraction duration using fixed appliances after maxillary first premolar extraction.
- Online Only Abstractson 01/12/2022 at 12:00 am
- Dentoskeletal effects of rapid maxillary expander therapy in early mixed dentition patients with different vertical growing patterns without posterior crossbite: A retrospective studyby Matteo Rozzi, Giuseppe Alesi, Manuela Mucedero, Paola Cozza on 25/11/2022 at 12:00 am
This study aimed to analyze the variation of dentoskeletal effects after rapid maxillary expander therapy in subjects with different vertical growth patterns.
- Erratumon 25/11/2022 at 12:00 am
Correction to: Tra My Pham, Nikolaos Pandis, and Ian R. White. Missing data, part 1. Why missing data are a problem. Am J Orthod Dentofacial Orthop 2022; 161:888-9.
- Erratumon 24/11/2022 at 12:00 am
Correction to: Tra My Pham, Nikolaos Pandis, and Ian R. White. Missing data, part 2. Missing data mechanisms: Missing completely at random, missing at random, missing not at random, and why they matter. Am J Orthod Dentofacial Orthop 2022;162:138-9.
- Erratumon 24/11/2022 at 12:00 am
Correction to: Tra My Pham, Nikolaos Pandis, and Ian R. White. Missing data, part 5. Introduction to multiple imputation. Am J Orthod Dentofacial Orthop 2022;162:581-3.
- Nonsurgical orthodontic treatment for a patient with Sotos syndromeby Ryoko Shioyasono, Kaoru Yoshinaga, Atsushi Shioyasono, Ayami Ito, Keiichiro Watanabe, Masahiro Hiasa, Shinya Horiuchi, Eiji Tanaka on 24/11/2022 at 12:00 am
Sotos syndrome is a genetic disorder characterized by overgrowth in childhood, specific facial manifestations, advanced bone age, and mental retardation. The purpose of this article is to describe the nonsurgical orthodontic treatment of a 10-year-old boy with a skeletal mandibular protrusion, unilateral posterior crossbite, and Sotos syndrome. After maxillary lateral expansion, the skeletal Class III relationship with an anterior crossbite improved because of mandibular clockwise rotation, whereas the facemask had a marginal effect.
- The effects of lingual buttons, precision cuts, and patient-specific attachments during maxillary molar distalization with clear aligners: Comparison of finite element analysisby Lurong Jia, Chunjuan Wang, Lingjie Li, Yao He, Chao Wang, Jinlin Song, Lizhen Wang, Yubo Fan on 23/11/2022 at 12:00 am
This study aimed to analyze the biomechanical effects of the combined use of clear aligners (CA) and auxiliaries (precision cuts, lingual buttons, and patient-specific attachments) on mesial tipping and extrusion of the premolars during maxillary molars distalization.
- Antimicrobial efficacy of zinc oxide nanoparticle-coated aligners on Streptococcus mutans and Candida albicansby Prathima Anita, Haritha Pottipalli Sathyanarayana, Kennedy Kumar, Krishnapriya Ramanathan, Vignesh Kailasam on 19/11/2022 at 12:00 am
This study aimed to assess the antimicrobial effect of zinc oxide (ZnO) nanocoating on aligners.
- Patient perspectives on teledentistry and face-to-face doctor interaction during orthodontic treatmentby Jackson K. Griffeth, Bhavna Shroff, Caroline Carrico, Payton Cook, Steven J. Lindauer on 19/11/2022 at 12:00 am
Teledentistry in orthodontics is growing, yet patient preferences for its use is unknown. This study aimed to determine the perceived value of doctor-to-patient face-to-face interaction, convenience, and attitudes toward specific uses of teledentistry among orthodontic patients.
- Orthodontic repositioning of a lingually positioned transmigrated mandibular canineby Andrea Scribante, Sergio Beccari, Giovanna Beccari, Maurizio Pascadopoli, Paola Gandini, Maria Francesca Sfondrini on 17/11/2022 at 12:00 am
This case report presents the successful orthodontic repositioning of a transmigrated and lingually positioned mandibular canine with conventional mechanics. Treatment began with the aim of creating space for the four permanent canines that had not yet erupted. Cervical headgear, mesial slice, and extraction of the deciduous teeth were executed, but only the right canines erupted; moreover, the mandibular left canine had become lingually transmigrated. Multibracket therapy was performed with the orthodontic repositioning of both left canines in 2 steps.
- Comparison of root apex’s position between unilateral and bilateral palatally impacted canines: A pilot studyby Sewoong Oh, Yong-Il Kim, Seong-Sik Kim, Soo-Byung Park, Sung-Hun Kim on 17/11/2022 at 12:00 am
The purpose was to determine whether the location of the root apices of unilateral palatally impacted canines differs from that of bilateral palatally impacted canines using cone-beam computed tomography.
- Bias in the superimposition of lateral cephalograms in adult patients with anterior open biteby Sarah Ovard, Brian Leroux, Geoffrey Greenlee, Greg Huang on 16/11/2022 at 12:00 am
Anterior open bite malocclusion can be treated nonsurgically using fixed appliances, clear aligners, or temporary anchorage devices (TADs). Proponents of clear aligners and TADs often attribute bite closure to molar intrusion and counterclockwise rotation of the mandibular plane. These changes may be supported by superimpositions. However, the process of creating a superimposition is subjective and may be influenced by practitioner bias.
- Evaluation of the dimensional alternation of the alveolar bone in patients with a congenitally missing mandibular lateral incisor using cone-beam computed tomographyby Seunghee Ma, Sun-Hyung Park, Chooryung J. Chung, Yoon Jeong Choi, Won Lee, Kyung-Ho Kim on 15/11/2022 at 12:00 am
The alveolar bone is an essential consideration when planning treatment for patients with tooth agenesis. This study evaluated the changes in the alveolar bone and adjacent teeth in patients with a congenitally missing mandibular lateral incisor using cone-beam computed tomography.
- Do patients treated with Invisalign have less swelling after orthognathic surgery than those with fixed orthodontic appliances?by Praveen Kumar Guntaka, Kevin Kiang, Ryan Caprio, Gareth J. Parry, Bonnie L. Padwa, Cory M. Resnick on 15/11/2022 at 12:00 am
Patients treated with perioperative Invisalign for orthognathic surgery may experience less postoperative swelling than those with fixed appliances because of a lack of mucosal irritation from bonded brackets and wires. The aims of this study were to (1) compare facial swelling after orthognathic surgery in subjects with Invisalign to those with fixed appliances using 3-dimensional (3D) subtraction imaging and (2) determine if the type of operation influences differences in swelling.
- Quantification of orthodontic loads on teeth in the correction of canine overeruption using different archwire designsby Dongcai Wang, Hakan Turkkahraman, Jie Chen, Boxiu Li, Yunfeng Liu on 15/11/2022 at 12:00 am
This study quantifies the effects of material, size of the continuous archwires, and level of overeruption on the loads on teeth in the correction of overerupted canines.
- Evaluation of the bisphenol released in the saliva after residual adhesive removal in orthodontic patients by using ultrasonic scaling and rotary system: A single-center randomized clinical trialby Sara Seifi, Behnam Mirzakouchaki, Ali Rafighi, Ayuob Aghanejad, Ali Asghar Hamidi, Shirin Shahrbaf on 14/11/2022 at 12:00 am
Bisphenol A (BPA) is a substance commonly used in dental materials with noxious properties. Monomers of this substance may be dissolved in the saliva and cause adverse effects. This study aimed to evaluate the amount of BPA released in the saliva after residual adhesive removal in orthodontic patients using an ultrasonic scaler (US) and tungsten carbide bur (TCB).
- Perceived efficacy of extrusion of maxillary lateral incisors with alignersby Mason T. Bates, Bhavna Shroff, Caroline K. Carrico, Nakysa Kheirandish, Steven J. Lindauer on 12/11/2022 at 12:00 am
This study aimed to assess the perceived efficacy of aligners (Invisalign; Align Technology, Santa Clara, Calif) at performing extrusive movements of maxillary lateral incisors and to evaluate and compare differences in treatment planning protocols and other interventions used when required between orthodontists and general dentists with various degrees of experience.
- December 2022 Continuing Educationby Allen H. Moffitt on 04/11/2022 at 12:00 am
- The effectiveness of adjuncts or alternatives to the use of orthodontic retainers in preserving posttreatment outcomes: A systematic reviewby Dalya Al-Moghrabi, Muteb Algharbi, Sarah Abu Arqub, Aslam Alkadhimi, Padhraig S. Fleming on 03/11/2022 at 12:00 am
The objective of this study was to systematically evaluate the efficacy of adjuncts or alternatives to mechanical retention in preserving postorthodontic treatment outcomes.
- Augmented corticotomy-assisted presurgical orthodontic treatment to prevent alveolar bone loss in patients with skeletal Class III malocclusionby Huimin Ma, Hangmiao Lyu, Li Xu, Jianxia Hou, Xiaoxia Wang, Weiran Li, Xiaotong Li on 31/10/2022 at 12:00 am
The objective of this study was to explore the effect of augmented corticotomy (AC) on anterior alveolar bone morphology in presurgical orthodontic treatment for skeletal Class III malocclusion.
- Clinical effectiveness of buccally and palatally anchored maxillary molar distalization: The miniscrew-supported 3-dimensional maxillary bimetric distalizing arch vs the Benesliderby Nilüfer İrem Tunçer, Ayça Arman-Özçırpıcı on 27/10/2022 at 12:00 am
This study aimed to investigate the dentoalveolar and skeletal changes achieved with a novel miniscrew-supported 3-dimensional maxillary bimetric distalizing arch (3D-MBDA) and the Beneslider. In addition, the study aimed to compare these changes between each other and with an untreated control group.
- Changes of maxillary central incisor and alveolar bone in Class II Division 2 nonextraction treatment with a fixed appliance or clear aligner: A pilot cone-beam computed tomography studyby Hongyu Chen, Luwei Liu, Minxuan Han, Yan Gu, Wei Wang, Lian Sun, Yongchu Pan, Hu Li, Zhendong Wang, Wen Sun, Wei-Bing Zhang, Hua Wang on 26/10/2022 at 12:00 am
This retrospective clinical study investigated the clinical changes of maxillary central incisor and alveolar bone in Class II Division 2 nonextraction treatment with fixed appliances or clear aligners on the basis of cone-beam computed tomography.
- Correction to: Sylvain Chamberland, Noé Nataf. Assessment of soft-tissue vs hard-tissue changes after isolated functional genioplasty. Am J Orthod Dentofacial Orthop 2022;161:e554-e570.on 26/10/2022 at 12:00 am
The authors found an aberrant data point in Table VI, Hard-tissue and soft-tissue changes in group 1 vs control group. This means that the following points in the article should be corrected as noted.
- Investigation of the role of midpalatal and circummaxillary sutures in bone-anchored rapid maxillary expansion using a verified finite-element modelby Chen-Jung Chang, Meng-Yen Chen, Chih-Han Chang, Hung-Chih Chang on 26/10/2022 at 12:00 am
This study aimed to verify a finite element (FE) model for bone-anchored rapid maxillary expansion. In addition, the stage of ossification of the midpalatal and circummaxillary sutures and their impact on expansion were analyzed.
- The effects of different types of periodontal ligament material models on stresses computed using finite element modelsby Dongcai Wang, Amin Akbari, Feifei Jiang, Yunfeng Liu, Jie Chen on 25/10/2022 at 12:00 am
Finite element (FE) method has been used to calculate stress in the periodontal ligament (PDL), which is crucial in orthodontic tooth movement. The stress depends on the PDL material property, which varies significantly in previous studies. This study aimed to determine the effects of different PDL properties on stress in PDL using FE analysis.
- Accuracy of indirect bracket placement with medium-soft, transparent, broad-coverage transfer trays fabricated using computer-aided design and manufacturing: An in-vivo studyby Mario Palone, Petra-Julia Koch, Paul-Georg Jost-Brinkmann, Giorgio Alfredo Spedicato, Alessandro Verducci, Patrizia Pieralli, Luca Lombardo on 12/10/2022 at 12:00 am
The objective of this study was to test the precision of in-vivo indirect bracket placement via medium-soft, transparent, broad-coverage, computer-aided designed and manufactured transfer trays using an automated digital method.
- Impact of bone-anchored maxillary protraction on the quality of life of subjects with complete unilateral cleft lip and palateby Vanessa de Couto Nascimento, Mariana Martins e Martins, Beatriz de Souza Vilella, Renato Faco, Hilde Timmerman, Hugo De Clerck, Daniela Garib, Oswaldo de Vasconcellos Vilella on 12/10/2022 at 12:00 am
This study aimed to evaluate the influence of bone-anchored maxillary protraction (BAMP) on the oral health–related quality of life (OHRQOL) in subjects with complete unilateral cleft lip and palate (UCLP) and moderate-to-severe maxillary deficiency.
- Hispanic adolescent lip response to extraction and nonextraction orthodontic treatmentby Jonathan I. Snow, David D. Chung on 07/10/2022 at 12:00 am
In orthodontics, treatment aims to improve the patient’s occlusion and overall facial appearance. Extraction of 4 first premolars may improve the occlusion, but it may negatively impact a patient’s facial harmony and create a “dished-in” appearance. Although many studies in orthodontic literature reviewed Caucasian patient soft-tissue change throughout extraction treatment, there is a void in the literature regarding Hispanic patients, who have different soft-tissue characteristics and may respond differently to extraction therapy.
- Effect of vitamin D on bone morphometry and stability of orthodontic tooth movement in ratsby Marie-Pascale Gratton, Irene Londono, Pierre Rompré, Isabelle Villemure, Florina Moldovan, Clarice Nishio on 07/10/2022 at 12:00 am
Vitamin D (VitD) maintains bone health and may influence orthodontic tooth movement (OTM). The objective was to evaluate the VitD effect on bone morphometry and the rate and stability of OTM.
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