Dental Materials Commons^™

Infection Control Across Clinical And Laboratory Dental Settings Protocols, Risks, And The Role Of Emerging Technologies, Khrystyna Vyprynyuk, Laura Andreesku

Publications and Research

This article explores infection prevention strategies and disease transmission pathways in dental settings, emphasizing the critical connection between clinical practice and dental laboratories. It highlights the risks of cross-contamination, disinfection and sterilization challenges, and the growing role of technology in enhancing infection control.

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 …

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 …

Effectiveness Of Different Home Bleaching Treatments On Color Change And Tooth Sensitivity: A Split-Mouth Design, Tarek Hanbali, Rim Bourgi, Carlos Enrique Cuevas-Suárez, Monika Lukomska-Szymanska, Walter Devoto, Nicolas Nassar, Naji Kharouf, Louis Hardan

International Arab Journal of Dentistry

Objectives: Dental at-home bleaching is a widely recognized and effective treatment for improving the shade of anterior teeth. However, the impact of varying application times of carbamide peroxide (CP) concentrations on whitening efficacy and tooth sensitivity (TS) remains unclear.

Methods: In this split-mouth, randomized clinical trial, 80 participants were divided into two groups (n = 40 each) to receive either 10% or 16% CP gel for home bleaching. Different application times were tested. Tooth color was measured using the Optishade colorimeter, and TS was evaluated via a five-point analog numerical rating scale. The Friedman test with post hoc Tukey test …

Management Of Anterior Teeth Affected By Molar Incisor Hypomineralization Using Resin Infiltration Technique: A Case Report, Atika Bouabid, Selsebil Laajimi, Yamina Elelmi, Fatma Masmoudi, Ahlem Baaziz

International Arab Journal of Dentistry

Background: Molar-Incisor Hypomineralization (MIH) is a developmental enamel defect affecting first permanent molars and often incisors, presenting unique restorative challenges. In line with minimally invasive dentistry, the “Würzburg concept” promotes conservative management strategies with resin infiltration.

Objectives: This case report investigates the impact of modifications to the ICON resin infiltration protocol on esthetic outcomes and adhesion in MIH-affected anterior teeth.

Method: Three clinical cases involving MIH lesions on anterior teeth were treated using the Icon® resin infiltration system by DMG (Hamburg, Germany).

Results: Preconditioning hypomineralized enamel with 5.25% sodium hypochlorite followed by resin infiltration enhances the physical integrity of composite …

Effect Of Red Wine Immersion On The Flexural Strength Of Glass Ionomer Cement: An In Vitro Study, Niyola Crasta, Upasana Reddy, Jayaprakash Kukkila

International Arab Journal of Dentistry

Background: Alcoholic beverages such as red wine are widely consumed for social and cultural reasons. Ethanol and other constituents in red wine might alter the physical properties of dental restorative materials, particularly those exposed in the oral environment. Glass ionomer cements (GICs) are commonly used in restorative dentistry for their beneficial properties, but their mechanical strength under exposure to acidic or alcoholic solutions is a concern.

Objectives: To evaluate how exposure to red wine over time affects the flexural strength of glass ionomer cement (Shofu FX Ultra Mini).

Methods: Thirty rectangular specimens of glass ionomer cement (Shofu FX Ultra Mini), …

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.

Musculoskeletal Disorders In Dentistry: An Insight Into Dental Techniques And Practices, Mehwash Kashif, Aman Ashar, Amna Rehman, Abdul Aleem, Sidra-Tul-Muntaha Hashmi, Muhammad Yousuf Ali

Journal of Dentistry Indonesia

Objective: Musculoskeletal disorders (MSDs) are common workplace hazards in dentistry resulting from poor ergonomics and static postures, which lead to back, neck, and upper limb (shoulder, elbow, wrist, and hand) problems among dentists, resulting in harm to their health, productivity, and career. This study aimed to assess the frequency of MSDs, risk factors related to MSDs, and awareness of ergonomics among clinicians. Methods: Data were collected from 400 dental professionals, including house officers, postgraduate trainees, general dentists, and teachers/consultants, each with at least 12 months of practice. Data were collected using a structured, closed-ended questionnaire. Before data collection, ethical approval …

Antibacterial Analysis Of Human Amniotic Membrane Against Streptococcus Mutants, Streptococcus Sobrinus, And Enterococcus Faecalis, Mohamad Ezany Yusoff, Ruhil Hayati Hamdan, Haslina Taib, Tan Li Peng, Maizan Mohamed, Rumaizi Shaari, Mohamad Arif Awang Nawi

Journal of Dentistry Indonesia

Objectives: The human amniotic membrane (HAM) is a promising scaffold for oral applications due to its antimicrobial properties, which help protect against bacterial degradation. However, evidence of its activity against oral bacteria remains limited. Thus, this study aimed to evaluate the antibacterial activity of the HAM against selected Gram-positive oral bacteria, namely, Streptococcus mutans (S. mutans), Streptococcus sobrinus (S. sobrinus), and Enterococcus faecalis (E. faecalis). Methods: HAM in 1 cm²-pieces was inoculated with bacterial suspensions and incubated at 37 °C in 5% carbon dioxide (CO₂) for 48 hours to evaluate …

Targeted Injection Therapies For Temporomandibular Joint Disorders: A Comparative Review Of Hyaluronic Acid And Botox Techniques, Timothy Alexander, Marissa Siegel, Noah Schnoor, Elizabeth A. Starns

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: This study aimed to evaluate the effectiveness of different injection therapies for temporomandibular joint disorders (TMD) and answer the research question: how do botulinum toxin (onabotulinumtoxinA, Botox) and hyaluronic acid (HA) injections affect symptoms of temporomandibular joint disorder (TMD)? Methods: An electronic search of three databases was performed using the search terms “Treatment of TMD or TMJ” and one of the following: 1) “Hyaluronic Acid Injection” or 2) “Intramuscular Botox Injection”. Based on studies done with human patients, the effects of both hyaluronic acid and Botox injections as treatments for TMD were observed and analyzed. Inclusion criteria were: full …

Color Stability Of Enamel Exposed To Chlorinated Water After Remineralization, Sara Adel Botros, Mohamed Samy Salama, Mahmoud Al Ankily, Nora Alzayyat

Dentistry

No abstract provided.

Remineralization Effect On Enamel Physicochemical Properties After Chlorine-Induced Erosion, Sara Adel Botros, Mohamed Samy Salama, Mahmoud Al Ankily, Nora Ahmed Alzayyat

Dentistry

No abstract provided.

21st-Century Dental Public Health: Revisiting The Role Of Community Water Fluoridation, Larry Williams, Preetha Kanjirath

Journal of the American College of Dentists

Community water fluoridation (CWF) has been celebrated as a major public health achievement, significantly reducing dental caries and narrowing oral health disparities. While historically effective, today’s fluoride exposure landscape has shifted, with multiple sources contributing to cumulative intake. This article reviews the scientific foundation, mechanisms of action, public health benefits, and ethical considerations surrounding CWF, alongside real-world outcomes from policy reversals. It examines contemporary concerns, including potential neurodevelopmental risks and vulnerable populations, and calls for recalibrated policies that maintain caries prevention benefits while monitoring total fluoride exposure to ensure safety in modern contexts.

Ethical Dilemmas Surrounding Community Water Fluoridation, Roopwant Kaur, Herminio Perez, Mark Moss

Journal of the American College of Dentists

Since the 1950s, community water fluoridation (CWF) has stood as a cornerstone of dental public health. However, a growing amount of public scrutiny necessitates reflection on the ethical basis for coming to a firm position on the topic. Aside from CWF, fluoride in the form of ingestible supplements has recently been identified as a concern by the US Food and Drug Administration. Indeed, it is challenging to wade through the facts, opinions, misinformation, and policy shifts. This article examines the ethical dilemmas that surround CWF through the lens of the American Dental Association (ADA) Principles of Ethics and Code of …

J Am Coll Dent 2025 92 1

Journal of the American College of Dentists

The Journal of the American College of Dentists (JACD) publishes scholarly articles, editorials, essays, and reflections addressing the ethical, professional, and social dimensions of dentistry. The Journal serves as a forum for advancing ethics, professionalism, leadership, and excellence within the dental community. By fostering dialogue across disciplines and perspectives, JACD provides readers with insights that encourage ethical, professional practice, lifelong learning, and service to the public, reinforcing dentistry’s commitment to advancing oral healthcare and the common good.

Effect Of Ingot Thickness And Translucency Of Lithium Disilicate Glass-Ceramic And Final Shade: An In Vitro Study, Rami Shurbaji Mozayek, Even Hanifi, Hiba Al Helou, Mohammed Yamen Al Shorbaji Al Moziek, Nour Al Deen Kharboutly

International Arab Journal of Dentistry

Introduction: laminate veneers can alter the final shade depending on factors like resin cement shade or material used. Other factors such as ceramic thickness and translucency will be discussed in this study.

Methods: The study sample consists of 60 discs made of lithium disilicate glass ceramic divided into four groups (HT, LT, MO, HO) according to their translucency, each group was subsequently divided into three subgroups (1, 0.75, 0.5 mm) according to their thickness. L, a,b values were measured for each disc. One-Way ANOVA was carried out with 95% confidence interval.

Results: Statistical analysis showed significant difference …

Cytotoxicity And Osteogenic Potentials Of Mesenchymal Stem Cells Via A Novel Formulation Of Mineral Trioxide Aggregate: An In Vitro Study, Ahmed Elgendi, Ehab Hassanien, Mohamed Nagy, Iman Fathy, Ashraf Abu Seida, Elhassan Hassanein

International Arab Journal of Dentistry

Objectives: Root perforations can lead to periodontitis and alveolar bone loss. This study compared cytotoxicity and osteogenic potential of zirconia-containing mineral trioxide aggregate (MTA) Matreva (MAT group) to MTA Angelus (ANG group) as root perforation repair materials.

Methods: Bone marrow mesenchymal stem cells (BM-MSCs) were extracted from two albino rats and cultivated. The cytotoxicity of the studied materials was determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay at three time points: 3, 7, and 14 days. The evaluated materials were employed to guide the osteogenic differentiation of BM-MSCs into osteoblasts. The osteogenic impact was evaluated by assessing calcium …

Evaluation Of Anti-Bacterial Efficacy Of Ginger, Resin Gum, And Nigella Sativa Irrigants Against Enterococcus Faecalis: An In Vitro Study, Iman El Ghazzawy, Leen Imad Hasbini, Reem Chamseddine, Wael Betbout, Roula Abiad

International Arab Journal of Dentistry

Objectives: To evaluate the antibacterial efficacy of Ginger, Resin Gum, and Nigella Sativa, against Enterococcus Faecalis.

Methods: Thirty-eight extracted single-rooted premolars were inoculated with E.faecalis, except the negative control, and incubated for 4 weeks. After instrumentation samples were divided into 4 groups (n=7) according to final irrigation: NaOCl+EDTA (Group A), Nigella sativa (B), Resin Gum (C), Ginger (D), plus 2 control groups (n=5): Saline (E), and Saline without bacterial inoculation (F). Cultures were collected at baseline and after irrigation.

Results: One-way ANOVA showed that in groups A-D a statistically significant reduction of bacterial load was observed at …

Biocompatibility And Anti-Inflammatory Effects Of Thai Cannabidiol-Containing Topical Anesthetic Gel Prototype In A Dermal Irritation Test, Pasutha Thunyakitpisal, Supattarayan Thongjit, Apitchaya Pruksametanan, Wijit Banlunara Assoc. Prof.

The Thai Journal of Veterinary Medicine

The objective of this study is to investigate and compare the effect of cannabidiol (CBD)-containing and non-CBD topical anesthetic gel prototypes on skin irritation in rabbits at 24, 48, and 72 h post-application. Topical anesthetic gel prototypes containing 0.1% CBD and without CBD were developed. Six rabbits (Oryctolagus cuniculus) were used for skin irritation testing according to ISO 10993-23: 2021. The animals were randomly and equally divided into two groups (CBD and non-CBD gel groups). The gels were applied to the animals’ skin at the dorsal area of the flank with good contact for 4 h. Distilled water …

Effect Of Sdf Application Versus Diode Laser Irradiation On Incipient Carious Lesion’S Progression In Primary Molars: A Randomize Clinical Trial, Islam Yehia, Noha Samir Kabil, Basma Gamal

Dentistry

The present study aimed to investigate the effect of two different preventive measures a) Silver diamine (SDF) application, b) Diode laser irradiation, on caries progression of incipient carious occlusal lesions in primary second molars. This clinical trial included two equal study groups of patients, for applying; Group I: SDF application, Group II: Diode laser irradiation, the included second primary molars for intervention were selected with incipient carious lesions graded by International Caries Detection & Assessment System (ICDAS)with scores (0,1,2). The involved molars were followed up for 3, 6, 12 months and ICDAS scores were graded to check for caries progression …