Orthodontics and Orthodontology Commons^™

Identifying Pyle's Metaphyseal Dysplasia – An Incidental Finding Of Skeletal Pathology On A Dental Checkup, Shruthi Parthasarathy, Amudhan Azhagan, Arthisri Anandhi Sekar, Poongodi V, Ram Shankar

Chulalongkorn Medical Journal

Introduction:

Pyle's disease, also known as familial metaphyseal dysplasia, is a rare autosomal recessive genetic disorder that primarily affects the skeletal system, particularly in children and adolescents. Characterized by distinctive radiographic features such as Erlenmeyer flask deformity and metaphyseal widening, Pyle's disease often goes underdiagnosed due to its mild clinical manifestations.

Case report:

This case report details a 15-year-old female patient presenting with retained milk teeth and unerupted permanent teeth, alongside notable skeletal abnormalities including genu valgum and kyphosis. Clinical and radiographic evaluations revealed significant dental anomalies, including multiple impacted permanent teeth and mild dysmorphic facial features. Although genetic testing …

Management Of Skeletal Class Iii Malocclusion With Deep Bite And Moderate Overjet Using Improved Super-Elastic Ti-Ni Alloy Wire (Isw), Wen-Hsuan Lin, Ching-Yu Yang, Yuan-Hou Chen, Jian-Hong Yu

Taiwanese Journal of Orthodontics

A 20-year-old female presented with concerns about poor dental alignment and a tendency to bite on her lip easily. Clinical examination revealed a concave and brachy facial profile, accompanied by a deep overbite and a moderate overjet. Radiographic examination showed skeletal Class III with a low mandibular plane angle. Correction of the deep bite was achieved by using the Improved Super-elastic Ti-Ni alloy Wire (ISW) and Intermaxillary elastics (IMEs). To correct the moderate overjet, interproximal reduction (IPR), the Multi-bend Edgewise Archwire (MEAW) technique, and arch lengthening of the lower arch were applied. The active treatment duration took approximately 54 months, …

Improved Super-Elastic Ti-Ni Alloy Wire For The Treatment Of Skeletal Class Iii Malocclusion With Anterior Crossbite And Missing Lower Molar, De-Lun Zhuang, Yuan-Hou Chen, Jian-Hong Yu

Taiwanese Journal of Orthodontics

This case report describes the use of Improved Super-elastic Ti-Ni alloy wire (ISW), developed by Tokyo Medical and Dental University, in managing a skeletal Class III malocclusion with anterior crossbite and a missing lower molar. A 26-year-old female presented with a chief complaint of poor dental alignment. Clinical and radiographic evaluation revealed Angle Class III malocclusion, anterior crossbite, a missing mandibular first molar (36), and a centric occlusion–centric relation (CO–CR) functional shift, consistent with a skeletal Class III pattern. Treatment involved the use of ISW for leveling and alignment of both arches and correction of the anterior crossbite, while maintaining …

Inferior Alveolar Nerve Proximity In Mandibular Molar Distalization: Implications For Orthodontic Treatment Planning, Samantha Hsien-Chu Mao, Chia-Hsuan Chan, Yu-Jen Chang, Shiu-Shiung Lin, Chen-Feng Cheng, Te-Ju Wu

Taiwanese Journal of Orthodontics

Purpose: This study aimed to clarify the anatomical boundaries of mandibular molar distalization, emphasizing the risk of inferior alveolar nerve (IAN) contact. Patients and Methods: In total, 30 skeletal Class III patients undergoing orthognathic surgery (59 mandibular hemi-arches) were analyzed using pretreatment three-dimensional (3D) computed tomography scans. The shortest horizontal distance between the mandibular second molar and the inferior alveolar canal (M2-IAC) was measured at multiple depths below the cementoenamel junction, along with the distance to the lingual cortical plate (M2-MLC). Samples were categorized by vertical facial pattern (low-, normal-, and high-angle case). Simulated distalization cases predicting IAN contact were …

Comparative Evaluation Of Selected Properties Of Tetrahedral Amorphous Carbon (Ta-C) Coated And Uncoated Beta Titanium (Β-Ti) Archwires - An In Vitro Study, Abhinaya Jotheswaran, Kurunji Kumaran Navaneethakrishnan

Taiwanese Journal of Orthodontics

Objective: The development of newer archwires can be achieved either by discovering novel materials or by modifying existing ones. The objective of the present study was to coat beta-titanium (β-Ti) archwires with tetrahedral amorphous carbon (ta-C)/hard carbon and to evaluate selected physical and mechanical properties. Methods: Hard carbon–coated (n = 5) and uncoated (n = 5) β-Ti wires were assessed for surface roughness, wear resistance, load-deflection characteristics, and friction using appropriate testing apparatus under dry in vitro conditions. Results: Compared to uncoated β-Ti wires, ta-C–coated β-Ti wires demonstrated a statistically significant reduction in surface roughness, increased wear resistance, and lower …

Evaluation Of Optimal Force For Intrusion Of A Periodontally Compromised Maxillary Anterior Dentition Treated With Fixed Orthodontics – A Finite Element Analysis, Tanzim Ahmed, Amrita Puri, Aatira Nair, Anshul Singla, Mathew Koshy Vaidyan, Shruti Sharma, Chhavi Singh

International Arab Journal of Dentistry

Introduction: Adult orthodontic treatment is increasingly sought due to aesthetic and functional concerns, often involving periodontally compromised patients with altered biomechanics. Reduced bone support shifts the center of resistance and necessitates lower, carefully controlled forces, while finite element modeling has become a key tool to analyze tissue response under such conditions.

Objectives: The study aimed to determine the optimal intrusive force for periodontally compromised maxillary anterior teeth using Finite Element Analysis (FEA).

Methods: A 3D finite element model of the maxillary anterior dentition was created and divided into healthy and compromised halves, the latter with one-third alveolar bone loss. A …

The Efficacy Of Mini-Screw Rapid Palatal Expansion (Marpe) In Late Adolescents And Young Adults: A Systematic Review, Afaf El Merouani Drissi, Hajar Ben Mohimd, Hicham Benyahia, Fatima Zaoui

International Arab Journal of Dentistry

Introduction: Mini-screw assisted rapid maxillary expansion (MARPE) emerged as a less invasive alternative treatment for transverse maxillary expansion, and designed to overcome the limitations of conventional rapid maxillary expansion for patients from post-pubertal growth spurt period onwards, often presenting with an interdigitated suture. The aim of this systematic review is to evaluate the efficacy of this treatment on skeletal, dento-alveolar and periodontal levels based on CBCT studies, by comparing it to the conventional rapid maxillary expansion (RPE).

Methods: a literature search of five databases (PubMed, Scopus, Web of Science, ScienceDirect and the Cochrane library) was conducted from 2010 until July …

The Effectiveness Of Anterior Torque Control By Clear Aligners In Extraction And Non-Extraction Cases : Systematic Review, Houda Ousli, Kawtar Chadli, Fatima Zaoui, Hicham Benyahia

International Arab Journal of Dentistry

Introduction: Clear aligner treatment has gained popularity in recent years. Accurate torque expression of the upper incisors is crucial for orthodontic treatment outcomes but remains challenging in invisible orthodontic treatment.

Objectives: This systematic review aims to evaluate the existing literature and critically assess the clinical effectiveness of aligners in controlling anterior torque or bucco-lingual root inclination, in both extraction and non-extraction cases.

Methods: A systematic search of Scopus, PubMed, Web of Science, Ebsco, and the Cochrane Library was conducted for peer-reviewed articles published between 2014 and March 2025. A total of 257 records were identified (Scopus: 32; Web of Science: …

A Comparison Of Changes In Vertical Cephalometric Measurements In Patients Treated With Invisalign And Traditional Fixed Orthodontic Appliances: A Retrospective Study, Shayna Mesko

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Since their introduction into the field, clear aligners have significantly grown in popularity in orthodontics as they offer enhanced esthetics, improved oral hygiene, and patient comfort. Clear aligners have allowed clinicians to simulate treatment outcomes, streamline treatment with reduced office visits, control force and movement per tray, and provide more precise control of focal tooth movements. This can enhance efficiency in achieving specific and very finite orthodontic goals. Since their inception, clear aligners have evolved from only accomplishing simple tooth movements to achieving more complex and comprehensive mechanics. While they have significantly advanced, there are still limitations in efficacy …

Asymmetric Maxillary Molar Distalization And Guided Canine Eruption Using Temporary Anchorage Devices And Super-Elastic Niti Wire, Kah-Ying Yim, Huei-Mei Tsai, Yu-Ling Cheng, Ming-Jeaun Su, Yi-Min Liu

Taiwanese Journal of Orthodontics

An adult female patient presented with a pronounced maxillary dental midline deviation and localized crowding in the upper right quadrant, particularly involving the canine and second molar. The maxillary right canine was buccally erupted and overlapped the lateral incisor and first premolar due to insufficient arch space and unfavorable root proximity. The mandibular arch exhibited mild anterior crowding with a flat curve of Spee. Orthodontic treatment was initiated using preadjusted fixed appliances. Extraction of the maxillary right third molar was performed to allow immediate sequential distalization of the maxillary right molars. A bypassed-canine main archwire in combination with a temporary …

Management Of Lower Incisor Protrusion In An Angle Class Iii Malocclusion Using Improved Super-Elastic Ti-Ni Alloy Wire, Jr-Wei Jian, Yu-Hsiang Chang, Yi-Mien Cheng, Ming-Han Cheng, Jian-Hong Yu

Taiwanese Journal of Orthodontics

A 16-year-old adolescent female presented with the chief complaint of poor dental alignment and protrusion of the lower teeth. Clinical examination revealed Angle Class III malocclusion accompanied by lower anterior crowding and a protrusive lip profile involving both the upper and lower lips. Cephalometric analysis demonstrated a skeletal Class I relationship with a normal mandibular plane angle. To facilitate anterior retraction, four premolars (15, 24, 34, and 45) were extracted. Following extraction, Improved Super-elastic Ti-Ni alloy wire (ISW) was employed to relieve lower anterior crowding. Canine distalization and anterior retraction were subsequently performed. Elastic chains were used to assist midline …

Comparative Effectiveness Of Single Versus Two Miniscrews For Maxillary Incisor Intrusion In Gummy Smile: A Systematic Review And Meta-Analysis, Vaibhav Sunil Zanwar, Santosh Jetu Chavan, Jyoti Sunny Manchanda, Sakshi Santoshkumar Jain, Vedant S, Rishika Arya

Taiwanese Journal of Orthodontics

Background: Orthodontic intrusion of maxillary incisors is commonly used to treat gummy smiles in deep bite patients. The effectiveness of using one versus two miniscrews for this purpose remains debated. This systematic review and meta-analysis aimed to compare the dental effects of one versus two miniscrews for maxillary incisor intrusion.

Materials and Methods: A literature search was conducted across multiple databases for studies published up to December 31, 2024. Five studies (four randomized controlled trials and one non-randomized study) met the inclusion criteria. Risk of bias was assessed using the RoB 2 and ROBINS-I tools.

Results: Intrusion was greater in …

Correlation Between Maxillary Incisor Inclination And Buccopalatal Alveolar Bone Thickness Assessed By Cbct: A Retrospective Observational Study, Raee Korgaonkar, Nandini Kamat

Taiwanese Journal of Orthodontics

Purpose: This retrospective study aimed to evaluate the correlation between buccal and palatal alveolar bone thickness and the degree of maxillary incisor inclination. The objective was to derive clinically relevant insights for orthodontic treatment planning and controlled tooth movement. Materials and Methods: Sixty-one maxillary central incisors from cone-beam computed tomography (CBCT) scans of thirty-four subjects were retrospectively evaluated and grouped as proclined, upright, and retroclined incisors. Buccal and palatal thicknesses of cortical and cancellous alveolar bone were measured at various levels of the incisor root. The correlation between bone thickness and incisor angulation was investigated using Spearman’s correlation test. Results: …

Evaluation Of Mandibular Buccal Shelf Bone Thickness And Height For Miniscrew Placement Using Cone-Beam Computed Tomography, Roji Shrestha, Rabindra Man Shrestha, Jyoti Dhakal, Sujita Shrestha

Taiwanese Journal of Orthodontics

Introduction: Buccal shelf area (BSA) is a recommended anatomic site for mini-screw insertion. Stability of miniscrew is determined by quantity of bone available in the region.

Objective: To determine bone thickness and height of BSA for optimum placement of miniscrew.

Materials and Methods: This cross-sectional observational study included 40 cone-beam computed tomography (CBCT) scans (23 males, 17 females) of patients aged 19-38 years. Patients were further divided into two age groups 19-28 years and 29-38 years. Measurements were made at 4 different sites: mandibular first molar mesial root (M6) and distal root (D6), second molar mesial root …

Correlation Between Maxillary Morphology And Sinus Dimensions In Skeletal Class I, Ii, And Iii Subjects: A Comparative Study, Nida Shaikh, Dipti Shastri, Pradeep Tandon, Gyan Prakash Singh

Journal of Dentistry Indonesia

Background: This study aimed to evaluate variations in maxillary and sinus morphology and their correlations with skeletal malocclusion patterns using CBCT.

Methods: This retrospective study analyzed CBCT records of 70 subjects aged 17–40 years, divided into three groups: Skeletal Class I (N = 25), Class II (N = 25), and Class III (N = 20). Five maxillary skeletal and four sinus parameters were assessed. Intergroup comparisons were performed using one-way analysis of variance (ANOVA) followed by Tukey’s post hoc test. Correlations were evaluated using Pearson’s correlation test. Intra-observer reliability was assessed by re-measuring 8 randomly selected CBCT scans …

Evaluation Of An Audiovisual Educational Tool With Reinforcement Messages For Orthodontic Patients: A 6-Month Randomized Controlled Trial, Laura Restrepo Quijano, Maria Paula Vasco Gomez, Natalia Hurtado Velasquez, Luis Fabian Benitez Moreno

Journal of Dentistry Indonesia

Background: Orthodontic treatment increases the risk of bacterial plaque accumulation; therefore, oral hygiene education is essential to prevent complications, but its impact is usually limited when it is not reinforced with effective tools. This study aims to evaluate an audiovisual educational tool with reinforcement messages, compared with a verbal explanation about the proper use of the orthodontic oral hygiene kit.

Methods: This was a randomized controlled trial that included 62 patients randomly assigned to an intervention group: 31 patients who received an educational video plus three reinforcement messages via WhatsApp, and a control group: 31 patients who received …

Micro-Ct Evaluation Of Root Canal Transportation And Centering Ability In Mesial Canals Of Mandibular First Molars, Selen Ince Yusufoglu, Esma Saricam, Mert Ocak, Ferhat Geneci, Burak Bilecenoğlu

Journal of Dentistry Indonesia

Background: This study aimed to evaluate canal transportation, centering ability, structure model index (SMI), surface area, and root canal volume changes in the mesial canals of mandibular first molars using micro-CT.

Methods: Twenty-four mandibular first molars with two separate mesial canals and moderate curvature were included. Teeth were scanned using micro-CT before instrumentation and randomly divided into three groups (N = 8). Root canals were prepared using OneShape, OneCurve, and Rotate file systems, followed by post-instrumentation micro-CT scanning (10µm/pixel resolution). Changes in canal volume, surface area, transportation, centering ability, and SMI were analyzed at the apical, middle, and …

In Silico Model Of Musa Acuminata Stem As An Anticancer On Oral Squamous Cell Carcinoma Against Egfr, Nevrila Dewi Rachmayani, Amy Nindia Carabelly, I Wayan Arya Krishnawan Firdaus, Maharani Laillyza Apriasari, Juliyatin Putri Utami

Journal of Dentistry Indonesia

Background: Oral squamous cell carcinoma (OSCC) is characterized by overexpression of the epidermal growth factor receptor (EGFR). Citral, eucalyptol, and caffeic acid phenethyl ester (CAPE), which are derived from Musa acuminata, have shown anticancer activity. This study evaluated the potential of citral, eucalyptol, and CAPE from Musa acuminata as anticancer agents for OSCC by targeting EGFR using an in silico approach.

Methods: Potential biological activity was predicted using Prediction of Activity Spectra for Substances (PASS) Online. Molecular docking was conducted with AutoDock Vina, and BIOVIA Discovery Studio was used to analyze binding affinity, interaction types, and bond …

Resolution Of Severe Lateral Open Bite With Surgically Enhanced Orthodontic And Myofunctional Therapies, Daniel Kuncio D.D.S., Maria Karpov D.M.D.

The New York State Dental Journal

Patients often present to our practices with dental relapse of previous orthodontic treatment. Many times, the underlying skeletal and/or functional problems leading to the malocclusion were not addressed, causing the teeth to revert to their initial positions, even with good retainer wear. This patient presented with a severe lateral open bite and complained of problems chewing on his right side.

Previous orthodontic treatment with fixed orthodontics appliances and vertical elastics proved to be unstable. We recommended a treatment plan with surgically assisted rapid palatal expansion (SARPE) to correct the skeletal maxillary constriction and provide more tongue space, followed by surgically …

N Y State Dent J April 2026

The New York State Dental Journal

In the April 2026 issue, the reader will find the following feature articles:

• Resolution of Severe Lateral Open Bite with Surgically Enhanced Orthodontic and Myofunctional Therapies
• Laser-Assisted New Attachment Procedure: A Review
• Restoration of Dental Implants with Screw-Retained Crowns

This issue includes regular columns with regional news impacting the New York membership including editorial and perspectives columns, legal, association activities, component news, continuing education opportunities, and classifieds.