Orthodontics and Orthodontology Commons^™

An Ai-Assisted Digital Workflow For Clinical Planning And Guide Fabrication In Miniscrew-Assisted Rapid Palatal Expansion, Yu-Chiang Chen, Szu-Ching Lee, Ting-Fen Chang, Wei-Lun Chang, Shu-Cheng Lin, Tzu-Ying Wu

Taiwanese Journal of Orthodontics

Purpose: This article introduces a digital workflow for creating a miniscrew-assisted rapid palatal expander (MARPE) guide, to virtually determine the proper MARPE position and to precisely transfer it into the reality. Materials and Methods: A digital workflow was established by the following steps: (1) generating a digital model with palatal soft tissue from the digital scan, (2) isolating teeth on the digital model from the CBCT file for band size try-in using AI software (DentalSegmentator), (3) constructing a model with four parallel cylinders simulating the MARPE screws’ pathways, (4) superimposing the three models to determine the proper MARPE position, (5) …

To Extract Or Not To Extract: On What Basis Do We Make That Decision? (Part Ii), Ib Leth Nielsen

Taiwanese Journal of Orthodontics

The most common extraction pattern in orthodontic patients with crowding of the teeth is the four first bicuspids. This is usually done in cases with severe crowding or bimaxillary protrusion. In some instances, orthodontists have decided, instead of extracting the first bicuspids, to extract the second bicuspids, for various reasons that we shall discuss in this review. Several other extraction patterns have also been implemented in the past, including second molars, lower incisors, and even asymmetric extractions. In this review, we shall discuss the pros and cons of each of these choices. In some patients, clinicians have even decided to …

Orthodontic Trial Transparency Audit: Automated Registry To Publication Linkage And Outcome-Switching Signals In Registered Rcts, Stephen P. Osman, Frank Licari, Shankargouda Patil, Shilpa Bhandi

Annual Research Symposium

Objective: To quantify transparency gaps in orthodontic randomized controlled trials by linking trial registry records to publications and characterizing timing of registration, publication delay, and selective outcome reporting signals using automated text-based methods.
Methods: A retrospective computational audit was designed around trial registries (e.g., ClinicalTrials.gov and other major registries used in orthodontics) and bibliographic records. Registry entries marked completed were programmatically screened for publication linkage using identifier matching (e.g., registration IDs) and document-similarity approaches aligned with prior registry-publication linkage research. Trial-level transparency indicators included (i) prospective vs retrospective registration, (ii) completion to publication lag, (iii) presence/absence of posted results in …

Regulatory Signal Mining Of Orthodontic Device Adverse Events: A Maude-Derived Taxonomy And Severity Triage For Clear Aligners And Fixed Appliances, Nazmi Duka, Dana Faghih, Shankargouda Patil, Shilpa Bhandi, Frank Licari

Annual Research Symposium

Objective: To build and validate a practical, orthodontics-specific adverse event taxonomy and severity triage framework using publicly available regulatory narratives, enabling rapid surveillance of high-risk event patterns across clear aligners and common orthodontic appliances.
Methods: A retrospective computational audit was conducted using U.S. FDA MAUDE medical device report narratives related to orthodontic appliances, with a focus on clear aligners (including Invisalign and direct-to-consumer sequential aligners). Narrative reports were normalized and grouped into clinically interpretable event families (airway compromise, hypersensitivity/allergic reactions, ingestion/aspiration, soft-tissue injury, periodontal/tooth injury, and occlusal/bite changes). A lightweight natural-language processing pipeline (keyword+pattern rules with clinician-informed adjudication) was used …

The Effect Of Social Media On Orthodontics: The Patient And Practitioner Perspective, Corban Ward, Jacob Marx, Man Hung, Samuel Dyal, Alicia Parry

Annual Research Symposium

Introduction Social media now shapes how people find information, connect and form identity. It increasingly influences cultural standards around  health and appearance. In orthodontics, these platforms are reshaping public perceptions, attitudes and treatment decisions. This review synthesizes existing research on social media’s impact on how people view and choose orthodontic care.

Methods A PRISMA guided review searched PubMed, Scopus, and Web of Science for  peer-reviewed English-language studies published between 2015 and 2025. Using terms such as “social media,” “orthodontic treatment,” “dental esthetics,” “perception,” we included studies assessing how social media shapes public beliefs, behaviors, and  self-perception related to orthodontic care. …

J Mich Dent Assoc February 2026

The Journal of the Michigan Dental Association

Each month, the Journal of the Michigan Dental Association delivers news, information, and features about Michigan dentistry to our state's oral health community and the MDA's 6,200+ members. It remains the main publication reaching Michigan dentists and is available worldwide through ADA Commons.

The February 2026 (Volume 108, No. 2) issue of the Journal is published in a digital format to provide updates and insights for Michigan's oral health community and MDA members. Print editions occur every other month beginning with January.

This issue includes feature articles on Risk Management and 2025 Servant Leadership as well as a clinical reprint …

Long-Term Follow-Up Of Midface Hypoplasia In A Patient With Cleft Lip And Palate, Jui-Jen Fang, Hui-Ching Yu, Li-Ling Cheng, Yu-Jen Chang

Taiwanese Journal of Orthodontics

Introduction: Severe midface hypoplasia is a common craniofacial deformity in patients with cleft lip and palate (CLP), often linked to functional impairment and esthetic concerns. Although surgical and orthodontic advances have improved outcomes, long-term stability remains challenging. This report presents the management of a bilateral CLP patient and evaluates stability after more than 12 years of follow-up. Diagnosis: A 31-year-old male with bilateral CLP showed a concave facial profile, widened lip scars, reverse overjet of –30 mm, complete crossbite, and missing teeth (12, 22, 36). Palatally displaced premolars (15, 25) produced an hourglass-shaped arch. The diagnosis was skeletal Class III …

Treatment Of Skeletal Class Iii Malocclusion With Spaced Arch And Anterior Crossbite Using Low-Hysteresis Improved Super-Elastic Ti-Ni Alloy Wire (Isw), Szu-Ying Yu, Yuag-Hou Chen, Ching-Yu Yang, Jian-Hong Yu

Taiwanese Journal of Orthodontics

This article presents the orthodontic treatment of a non-surgical, non-growing skeletal Class III malocclusion using an Improved Super-elastic Ti-Ni Alloy Wire (ISW), developed by the Institute of Science Tokyo (formerly Tokyo Medical and Dental University). Teeth 28 and 48 were extracted, and ISW with long Class III intermaxillary elastics (L3–U6) was applied to eliminate anterior occlusal interference, retract the mandible, and induce a clockwise rotation of the mandibular plane. In addition to mandibular space closure, the deviated dental midline and chin asymmetry were corrected using elastic chains and intermaxillary elastics. Proper arch coordination, space management, and midline alignment were achieved, …

Orthodontic Space Closure And Third Molar Uprighting For Simultaneous Maxillary And Mandibular Molar Loss On The Same Side, Chun-Yi Huang, Yuan-Hou Chen, Ching-Yu Yang, Jian-Hong Yu

Taiwanese Journal of Orthodontics

This case report describes the successful non-surgical orthodontic management of a complex Class I malocclusion characterized by unilateral posterior tooth loss and functionally induced facial asymmetry. A 28-year-old male patient presented with a non-restorable maxillary first molar (#26) and a missing mandibular second molar (#37). The resulting occlusal discrepancy contributed to a mandibular functional shift and facial asymmetry. The patient declined prosthetic and surgical options, prompting a conservative orthodontic approach.

The treatment plan incorporated third molar protraction and upright to substitute for the missing second molar, combined with occlusal rehabilitation to correct the asymmetry. Space closure was achieved using elastic …

Nonsurgical Orthodontic Management Of A Severe Skeletal Class Ii Malocclusion Using A Modified Intrusive Arch, Ting-Wei Liu, Chun-Liang Kuo, Chun-Hsiu Yang

Taiwanese Journal of Orthodontics

Treating skeletal Class II malocclusion in non-growing patients remains a significant challenge in contemporary orthodontics. Treatment options range from dental camouflage, often involving extractions, to combined orthodontic–surgical approaches. In this case, orthodontic camouflage with extractions was selected to manage a severe skeletal Class II discrepancy in a 28-year-old female patient. A modified intrusive arch was employed to achieve simultaneous retraction and intrusion of the maxillary anterior teeth, effectively reducing excessive overjet. The biomechanical system of the modified intrusive arch generates an anterior intrusive force, a posterior extrusive force, and a posterior tip-back moment. The combined use of Tip-Edge Plus brackets …

What About Our Teen-Age Patients?, Michelle C. Dziurgot

The Journal of the Michigan Dental Association

This editorial advocates for "mentally treating" teenage patients, specifically those around 14 years of age, as adults. By respecting their concerns and allowing age-appropriate decisions, clinicians can enhance a teen's dental IQ and self-esteem. This approach fosters confidence, communication, and independence, encouraging patients to take accountability for their treatment outcomes. Respectful dialogue leads to better compliance with home care, such as using rotary brushes or wearing retainers. Ultimately, treating teenagers with empathy and valuing their opinions helps them blossom into responsible adults while building lasting professional bonds.

J Mich Dent Assoc January 2026

The Journal of the Michigan Dental Association

Each month, the Journal of the Michigan Dental Association delivers news, information, and features about Michigan dentistry to our state's oral health community and the MDA's 6,200+ members. It remains the main publication reaching Michigan dentists and is available worldwide through ADA Commons. The January 2026 (Volume 108, No. 1) issue of the Journal is published in a print format to provide updates and insights for Michigan's oral health community and MDA members. Print editions occur every other month beginning with January.

This issue includes feature articles on Pediatric Dentistry and 2025 Life Membership recipients.

Regular monthly contributions include:

• Editorial …

Facial Aesthetics And The Esthetic Plane: Effects Of Modern Lip Trends, Allison Paige Fritz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: The objective of this study is to evaluate whether there is a difference in aesthetic preferences of lip position between dental professionals and the general public, which we will refer to throughout the paper as lay people. In addition, age and gender differences will be determined to evaluate whether there is a need to re-evaluate the accepted normative values for lips to Esthetic plane (E-plane).

Experimental Design and Methods: A cross sectional, observational study design was used. The study aim was to evaluate the perception and opinions regarding lip position and fullness of both lay people …

Comparison Of Three Methods In Diagnosing Maxillary Transverse Discrepancy, Madison Hull Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Comparison of Three Methods in Diagnosing Maxillary Transverse Discrepancy

Thesis by Madison Smith, D.D.S.

Introduction

There are several different methods in determining the maxillary transverse discrepancy (MTD). In specific, MTD can be determined with the help of a cone beam computer tomography (CBCT), 3D scan and models, or simply a 2D occlusogram.  Do they provide the same MTD values for diagnosing transverse discrepancies? A patient may need a certain amount of skeletal and dental expansion based on a diagnosis of MTD, but this amount may vary depending on the diagnosis method used. There is a lack of knowledge in …

Preference Of Smiling Esthetics By Caucasian And Chinese Orthodontic Professionals, Tamana Spingher

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: Comprehensive orthodontic treatment aims to achieve optimal facial esthetics, which is guided by established norms that have shown variability across different ethnic and gender groups. There is a paucity of literature comparing the esthetic preferences of Chinese and Caucasian orthodontic professionals regarding smiling esthetics. The purpose of this study was to determine the perceived smiling attractiveness ratings between Chinese and Caucasian orthodontic professionals. Methods: One Chinese and one Caucasian lateral smiling photograph generated by artificial intelligence (AI) were used in this study. The maxillary central incisor position was digitally manipulated to simulate variations in anteroposterior (AP) position …

Cephalometric And Soft Tissue Determinants Of Esthetic Outcomes After Single-Jaw Mandibular Setback Surgery In Skeletal Class Iii Patients: A Retrospective Study, Chun-Te Ho, You-Ru Chen, Tsui-Hsien Huang, Jnug-Chun Yeh, Tzu-Yu Peng, Chia-Tze Kao

Journal of Dental Sciences

Background/purpose: Orthognathic surgery is an effective treatment for skeletal Class III malocclusion; however, the relative influence of skeletal and soft tissue variables on postoperative esthetic outcomes remains unclear. This study aimed to evaluate the relationships among cephalometric parameters, soft tissue changes, and esthetic outcomes following single-jaw mandibular setback surgery.

Materials and methods: A retrospective study was performed on 258 adult patients with skeletal Class III malocclusion subspinale-nasion-supramentale (ANB) angle < 0° who were treated between 2016 and 2021. Patients were divided into three groups: bilateral vertical ramus osteotomy (BVRO) group (n = 99), genioplasty alone group (n = 30), and BVRO plus genioplasty group. (n = 129). Cephalometric and …