Dentistry Commons^™

Psychosocial And Functional Impact Of Temporomandibular Disorder Subtypes Among Adults: A Cross-Sectional Study In Indonesia, Ni Luh Dewi, Wita Anggraini, Maria Valiente-Lopez, Carolina Marpaung

Journal of Dentistry Indonesia

Background: Temporomandibular disorders (TMDs) affect psychological, functional, and pain-related aspects of oral health-related quality of life (OHRQoL). However, the differential impact of pain-related and non-pain-related TMDs remains limited. This study aimed to evaluate the impact of different TMD subtypes on psychological distress, jaw function, and OHRQoL in young adults and to determine whether pain-related TMDs exert a greater effect than non-pain-related TMDs.

Methods: In this cross-sectional study, 278 university students (aged 18–24 years) were categorized into no TMD (NT), pain-related TMD (PT), intra-articular TMD (IT), and combined TMD (CT). Diagnoses were made using the 5Ts Questionnaire screening tool …

Effect Of Home Bleaching With Carbamide Peroxide And Over-The-Counter Products On Stained Supra-Nano-Filled Composite: An In-Vitro Study., Lynn Harrouk, Pascale Habre, Samar Bou Jaoude, Carina Mehanna Zogheib

International Arab Journal of Dentistry

Objective: This study evaluated the impact of home and over-the-counter (OTC) bleaching products, compliant with SCCS regulations, on color changes in tea-stained supra-nano filled composite, using the CIEDE2000 formula.

Methods: One hundred Estelite® Sigma Quick discs were fabricated, thermocycled, and tea-stained for 12 days. Samples were divided into four groups: Opalescence 15% carbamide peroxide (CP) gel, White Dental Beauty 6% hydrogen peroxide (HP) strips, Pola Luminate 6% HP brush-on gel, and a control. Color was measured at baseline, post-staining, and post-bleaching using a VITA EasyShade spectrophotometer. ΔE₀₀ values were analyzed with Kruskal-Wallis and Dunn’s post-hoc tests (p < 0.05).

Results: All bleaching …

Comparison Of Three Intraoral Scanners For Digital Impressions Of Biologically Oriented Preparation: An In-Vivo Study, Lara Habli, Pascale Habre-Hallage, Hani Tohme, Dany Noujaim, Maryse Nassif, Camille Haddad

International Arab Journal of Dentistry

Introduction: The accuracy of intraoral scanners (IOSs) in capturing a Biologically Oriented Preparation Technique (BOPT) remains uncertain. The aim of this study was to evaluate the accuracy of digital impressions obtained with three intraoral scanners for recording BOPT preparations.

Methods: A maxillary central incisor was prepared following BOPT. After temporization, a conventional polyvinyl siloxane impression was scanned with a desktop scanner to obtain a reference model. Forty-two scans (n D 14 per scanner) were recorded with three IOSs—Trios 3, Sirios, and Helios 680—by a single operator under standardized conditions. Accuracy was assessed using Geomagic Control X by calculating 3D surface …

Influence Of Veneer Thickness On Double Bond Conversion Of Preheated Composite And Self-Adhesive Resin Cement Under Lithium Disilicate Restorations: An In-Vitro Study., Vanessa Kanaan, Marie Abboud, Alexandre Monnier, Dani Irani, Vana Mardirossian, Cynthia Kassis

International Arab Journal of Dentistry

Introduction: This study evaluated the influence of lithium disilicate restoration thickness on the degree of conversion (DC) of a self-adhesive dual-cured resin cement (Bifix SE®; VOCO GmbH, Cuxhaven, Germany) and a preheated composite resin (VisCalor Bulk®; VOCO GmbH, Cuxhaven, Germany).

Methods: Sixty IPS e.max CAD (LTB1) specimens (2 mm, 4 mm, 6 mm; n D 10 per group) were fabricated and divided into six groups. Groups 1–3 were luted with Bifix SE, and Groups 4–6 with preheated VisCalor Bulk. Specimens were conditioned with 5% hydro_uoric acid and silane, then cemented and light cured. Raman spectroscopy was used to determine DC. …

Predictive Analysis For Success And Complications In Dental Implant Therapy Using Artificial Intelligence Models, Vishnu Priya Veeraraghavan, Aysha Jebin A, Isha Dusane, Govind Baheti, Ankita Agarwal, Santosh R Patil

International Arab Journal of Dentistry

Introduction: Dental implant therapy is a predictable treatment for tooth replacement, but its success is influenced by multiple patient, surgical, and systemic factors. Traditional statistical models, such as logistic regression, are limited in capturing nonlinear relationships among these variables. Artificial intelligence (AI) can integrate diverse predictors to enhance clinical risk assessment and improve treatment outcomes.

Objective: To identify key predictors of dental implant success and develop AI-based models capable of accurately forecasting implant outcomes using clinical and surgical parameters.

Methods: This retrospective cohort study analyzed data from 172 patients (219 implants) placed between 2020 and 2021. Patient demographics, systemic health …

Digital Assessment Of Subtractive And Additive Cad/Cam Fabrication Methods On The Fit And Accuracy Of Lithium Disilicate Veneers, Basma Refaat Fayad, Islam Heiba Dr, Sara Fikry Dr, Maha Nagy

Dentistry

Objectives: This study compared subtractive and additive fabrication methods regarding their impact on the marginal/internal fit, trueness, and precision of lithium disilicate ceramic veneers. Methods: Laminate veneer preparations on an acrylic tooth were duplicated into twenty-four additively manufactured resin dies. Veneers were digitally designed and fabricated via milling (subtractive) or 3D-printing (additive) (n=12/group). All veneers were scanned. For trueness, the final design served as the reference; for precision, pairwise comparisons were made within each group. For adaptation, the scanned die was the reference. Post-cementation and thermal cycling (10,000 cycles, 5–55°C), marginal adaptation was measured using a digital microscope (×100). Data …

Study Of The Changes In Vestibular Bone Plate Absorption Values After Implant Placement Under Immediate Loading For A Period Of 5 Months Using Cbct: An In Vivo Study, Hassen Merzouk, Samir Habibi, Ben Ali Boutabout

International Arab Journal of Dentistry

Introduction: The study focuses on the success and durability of dental implants, which depends heavily on the bone surrounding them. Changes in this bone affect how the implant looks and functions. The researchers aimed to use CBCT, a modern three-dimensional imaging tool, to accurately measure changes in the thickness of the bone plate on the cheek side (vestibular bone plate) around implants placed in the lower jaw (mandible). Specifically, they looked at bone changes five months after placing implants that were immediately loaded (meaning they were used for chewing right away) in 15 patients who had missing molars or premolars. …

Digital Assessment Of Subtractive And Additive Cad/Cam Fabrication Methods On The Fit And Accuracy Of Lithium Disilicate Veneers, Sara Fikry Elshafei Dr, Islam Heiba Dr, Basma Fayyad, Maha Nagy

Dentistry

No abstract provided.

Restoration Of Dental Implants With Screw-Retained Crowns: Optimizing Contact Area Geometry To Prevent Food Impaction, John S. Mamoun D.M.D.

The New York State Dental Journal

A single-unit, screw-retained fixed partial denture or crown, made for a dental implant, may show food impaction between the screw-retained crown and an inter-proximal tooth surface. This restorative error may be due to an open contact or a large interproximal embrasure space volume between the screw-retained prosthesis and an interproximal tooth surface. Food impaction may also occur due to the contact plane of the restoration being parallel with the contact plane of the neighboring tooth instead of a more correct contact plane geometry where both interproximal contact planes converge slightly towards each other to form a “triangular” embrasure space. These …

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.

Influence Of Ceramic Thickness And Cad/Cam Ceramic Materials On The Fracture Resistance Of Indirect Restorations: An In Vitro Study, Lara El Hanach, Karim Corbani, Nabil Ghosn, Ryan Harouny, Cynthia Kassis

International Arab Journal of Dentistry

Objectives: This in-vitro study aimed to evaluate the impact of different CAD/CAM materials (IPS e.max® CAD and Cerasmart®) and thicknesses (0.7 mm, 1 mm, and 1.5 mm) on the fracture resistance of indirect overlay restorations.

Methods: Sixty-three human third molars were divided into 7 groups (n=9) based on material and thickness, including a control group of 9 sound teeth. Only 54 specimens were prepared using a thin-section cutting machine, scanned, and their scans were used to fabricate overlays from different materials and thicknesses. After adhesive cementation, the overlays underwent thermal cyclic loading (5,000 cycles between 5°C and 55°C). A universal …

Effect Of Dynamic Fatigue Loading On The Adaptation And Retention Of Maxillary Single Dentures Reinforced With Digitally Constructed Zirconia And Cobalt–Chromium Frameworks, Ghada Elgindy, Fardos N Rizk, Marwa Ezzat Sabet, Hebatallah Tarek Mohamed

Dentistry

Background. The impact of dynamic fatigue loading on denture adaptation and retention is clinically important. Zirconia and cobalt–chromium (Co–Cr) frameworks enhance denture strength, but their performance under cyclic loading remains unclear. Objectives. The aim of the study was to evaluate the adaptation and retention of maxillary single dentures reinforced with digitally constructed Co–Cr or zirconia frameworks after a simulated 1 year of function. Material and methods. Three types of maxillary single dentures were constructed on maxillary master casts. Group A included maxillary dentures without reinforcement (control group), whereas groups B and C encompassed maxillary dentures reinforced with digitally designed and …

N Y State Dent J March 2026

The New York State Dental Journal

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

• Pebbly Gingival Nodule in an Older Male
• Extraction of Teeth or Root Tips from Underneath Fixed Partial Denture Abutments or Pontics
• Successful Regenerative Endodontic Therapy of an Immature Dens Evaginatus Mandibular Second Premolar with Apical Periodontitis

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.

The Effect Of Cementation Load, Unload Time And Storage Time On Film Thickness And Μtbs Durability Of Dual-Cure Resin Cements. An In-Vitro Study, Sara Adel Botros, Abdullah Hassanien, Nader Maher Tadros, Farid Sabry El-Askary, Salvatore Sauro

Dentistry

No abstract provided.

Comparing Educational Pathways For Denturists To Become Maxillofacial Prosthetic Specialists In The Us And The Uk, Minseok Kim

Oral Health

Abstract

In the absence of formal training, licensure, and professionalism, this scientific literature review will seek to include denturists in the American maxillofacial prosthetics industry. Denturists are oral health professionals who perform oral examination, design, manufacture, and place removable oral prostheses. In other regions of the world, they are also known as clinical dental technologists and dental prosthetists. This practice is not widespread in the US. The review can also be assessed on the model mediated by PRISMA, which is concentrated on the experiences of international education in the United Kingdom, Canada, and Australia, where the concentration further revolves around …

Determining The Fidelity Of Multiple Casts Made From A Single Polyvinylsiloxane Impression, Steven Curtis, Steven Sadowsky, Eric Salmon

Oral Health

ABSTRACT

Statement of problem: Indirect restorations may not fit the patient’s teeth, or they may require excessive adjustment. If multiple casts from the same impression are equivalent, dentists can use new pristine casts to determine if fit problems have a laboratory or clinical cause. If the problem is from the laboratory, it may be correctable on a pristine cast.

Purpose: The purpose of this in vitro study is to determine if the areas critical for indirect restoration fit are equivalent on 6 casts made over 29 days from a single polyvinylsiloxane impression.

Material and Methods: Eight impressions were made …

Molar-Incisor Hypomineralization: Diagnosis, Management, And Treatment, Giovana Anovazzi Medeiros Dds, Msc, Phd, Bahareh Enghiad Dmd, James R. Boynton Dds, Ms

The Journal of the Michigan Dental Association

Molar Incisor Hypomineralization (MIH) is a qualitative developmental enamel defect affecting at least one permanent first molar. Characterized by high porosity and reduced mineral content, MIH leads to hypersensitivity, post-eruptive breakdown, and increased caries susceptibility. The etiology is multifactorial, typically occurring between birth and four years of age. Management depends on severity, ranging from topical fluorides and sealants for mild cases to stainless-steel crowns or extractions for severe instances. Because porous enamel facilitates bacterial penetration and pulpal inflammation, achieving effective local anesthesia is often difficult, necessitating individualized behavioral management and early intervention to preserve tooth structure.

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 …

Endodontic Access Through Zirconia Crowns: A Comparative Evaluation Of 3d Guided Versus Free-Handed Techniques, Maryam Alrughaib

Theses and Dissertations

Objective:

Accessing canals through full-coverage zirconia crowns is challenging and may increase the risk of misdirection, excessive dentin removal, and prolonged chair time. Guided endodontic access has been proposed to improve efficiency and precision. This study compared the accuracy and time efficiency of guided versus free-hand endodontic access through zirconia restorations. The hypothesis was that guided access would enhance canal localization precision and significantly reduce access time.

Methods:

Thirty-two extracted maxillary premolars were restored with 1-mm–reduced monolithic zirconia crowns (3Y-TZP, Katana HTML, Kuraray, Japan) and mounted in Modupro models. Teeth were assigned to two groups (n = 16 each): guided …

N Y State Dent J January 2026

The New York State Dental Journal

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

• No Need to Travel the Road to Licensure Renewal Alone
• IPS Subperiosteal Implant for the Maxilla and Mandible
• Amyloidoma of the Palate
• Titanium Hypersensitivity as Possible Cause of Dental Implant Failures

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.

Postoperative Conductive Hearing Loss After Full-Arch-Implantation Surgery Under General Anesthesia In An Oral Submucous Fibrosis Patient: A Case Report, Hao-Chen Wang, Fu-Chuan Tsai, Chia-Che Wu, Chih-Yuan Fang

Journal of Dental Sciences

No abstract provided.

Comparative Evaluation Of Bending Resistance And Retentive Torque Stability Of Zest Locator® And Straumann Novaloc® Abutments: An In Vitro Study, Hammad Ul Haq

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Comparative Evaluation of Bending Resistance and Retentive Torque Stability of Zest Locator® and Straumann Novaloc® Abutments: An In Vitro Study

Hammad Ul Haq B.D.S.

Objective: To compare the mechanical performance of Locator® (Zest Anchors) and Novaloc® (Straumann) implant overdenture attachment systems connected to Straumann Bone Level Conical (BLC) implants under standardized cyclic and static off-axis loading conditions.

Materials and Methods: Ten Straumann BLC implants were divided into two groups (n = 5): Group 1 received Locator® abutments and Group 2 received Novaloc® abutments. All abutments were tightened to 35 N·cm and retightened after 10 minutes. Baseline removal torque values …

Evaluation Of Finger-Tightening Torque Applied To Implant Healing Abutments By Dental Providers With Varying Experience And Physical Characteristics: An In-Vitro Study., Bayan Abuhalimeh

Graduate Theses, Dissertations, and Problem Reports (ETD)

Evaluation of Finger-Tightening Torque Applied to Implant Healing Abutments by Dental Providers with Varying Experience and Physical Characteristics: An In-vitro Study

Bayan Abuhalimeh, D.D.S

Aim: The primary objective of this project is to measure the actual torque applied by dental providers when finger-tightening a healing abutment and assess the variability among individuals. A secondary objective is to analyze the correlation between applied torque and: provider experience level (residents, general dentist, specialist); gender; age; and, physical attributes (e.g., grip strength, hand size, and dominant hand used for tightening). The null hypothesis is that there is no difference in the mean finger-tightening …

Effect Of Different Deep Margin Elevation Thicknesses Versus No Elevation On The Fracture Resistance Of Indirect Restorations: An In-Vitro Study, Fleurene Daraze, Karim Corbani, Brigitte Douaihy, Hadi Jomaah, Cynthia Kassis

International Arab Journal of Dentistry

Objectives: This in-vitro study aimed to evaluate whether different deep margin elevation (DME) thicknesses (1 mm, 2 mm, 3 mm) influence the fracture resistance and fracture type of molars restored with CAD/CAM lithium disilicate overlays, compared to no elevation.

Methods: Seventy-six extracted human molars were randomly divided into four groups (n=19) based on Deep Margin Elevation thickness: 0 mm (control), 1 mm, 2 mm, and 3 mm. Standardized Class II cavities were prepared with cervical margins extending 1 mm below the cementoenamel junction. DME was performed using a low-viscosity hybrid composite. Using a CAD/CAM workflow, overlays were designed and milled …

The Effect Of Loading On The Success Of Dental Implants After Immediate Extraction Compared To Delayed Dental Implants: A Systematic Review, Hassen Merzouk, Samir Habibi, Ben Ali Boutabout

International Arab Journal of Dentistry

Introduction: The study focuses on dental implants, which are used to replace missing teeth. A key decision in implant dentistry is when to place the implant relative to tooth extraction. This review compares two main approaches: immediate implant placement (placing the implant during the same surgery as tooth removal) and delayed implant placement (placing the implant after the extraction site has healed, typically 6 to 12 months later).

Objectives: The study aims to compare the success rates and complications associated with these two-timing strategies, especially concerning the implant’s ability to withstand chewing forces. The primary objective was to compare post-extraction …

Impact Of Adhesive Curing Mode And Dentin Sealing On Bond Strength Of Cad/Cam Resin Composite, Sara Adel Botros, Mohamed Fouad Haridy, Nermin Mohieldin Abdelmohssen

Dentistry

No abstract provided.

Dental Students’ Preferences In Selecting Artificial Teeth For Older Adults' Dentures, Muhammad Afif Sapie, Nur Hanim Farhana Mohamad Hilmi, Aiemeeza Rajali, Nik Rahayyu Nik Zulkifeli, Nor Wati Nur Atikah Mustafa, Hazem Mofreh Dakhilallah Al Tarawneh

Journal of Dentistry Indonesia

Objective: Selecting and arranging acrylic resin teeth for dentures is essential to achieve a natural appearance; however, limited understanding and older adults’ aesthetic expectations may result in inconsistencies and increased patient visits. This study aimed to explore the methods and factors dental students prefer when selecting artificial teeth for dentures for older adults. Method: A validated questionnaire, including consent, demographics, and six domains of the methods with related factors for selecting acrylic teeth, was distributed to dental students of the Universiti Teknologi MARA (UiTM). The participants responded using a five-point Likert scale and closed-ended questions. Result: 161 dental students participated …

Comparative Evaluation Of Maxillary Partial Denture Frameworks Additively Manufactured With Different 3d Printing Techniques, Basma Refaat Fayad, Islam Heiba Dr, Eman Gamal Abdelghaffar, Ayman Hany Amin

Dentistry

Objectives: To compare the accuracy of fit, surface roughness, and microstructure of cobalt chromium (Co-Cr) maxillary removable partial denture (RPD) frameworks fabricated using direct metal laser melting (DMLS) and selective laser melting (SLM). Methods: A custom Kennedy Class II maxillary partial edentulous resin model was digitally scanned, and a virtual RPD framework was designed. Frameworks were fabricated using DMLS (Co-Cr, n = 8) and SLM (Co-Cr, n = 8), while a control group was produced using a hybrid digital-conventional protocol by lost-wax casting (CAST-Co- Cr, n = 8), in total 24 frameworks. Overall and point comparison adaptation was assessed using …

Effect Of Acid-Containing Drinks On Surface Roughness And Bacterial Accumulation Of Different Types Of Denture Base Materials, Sara Fikry Dr, Ayman Amin, Eman Khedr, Fatma Makkeya

Dentistry

No abstract provided.