Dental Materials Commons^™

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 …

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.

A Comparison Of Shear Bond Strength Of Denture Teeth To Denture Base Using Different Means Of Retention: An In Vitro Pilot Study, Dima Taha El Baba, Paul Boulos

International Arab Journal of Dentistry

Objectives: The objective of this work is to evaluate the shear bond strength between denture base resin and three different acrylic artificial denture teeth. The latter was subjected to three different surface modifications on the ridge lap area and compared to unmodified acrylic artificial denture teeth.

Methods: In this experimental in vitro study, twenty-four maxillary central incisor acrylic teeth were used from each of three manufacturers; namely Major®, Ivoclar® and Myerson®. The teeth were additionally divided into four test groups with six specimens in each: a control group, a chemical retention group, a mechanical retention group, and a …

Cooling Protocols Impact On Nickel-Titanium Rotary Instruments Cyclic Fatigue Resistance Under Extreme Curvatures And Sodium Hypochlorite, Palak Ravjibhai Ranparia, Chintan Joshi, Mona Somani, Aashray Patel, Urooj Desai, Janki Prajapati

Journal of Dentistry Indonesia

Objective: In this work, Hyflex CM, TruNatomy, and Plex V heat-treated nickel titanium rotary instruments were evaluated at body temperature (36 °C ± 1 °C) with and without a cooling protocol to assess the cyclic fatigue resistance. Methods: A 90° curved stainless-steel block was used for cyclic fatigue tests on 60 randomly selected rotary instruments, divided into two groups of 30: body temperature (n = 10) and body temperature with cooling (n = 10). Instruments were further subdivided into 6 groups of 3 different instruments. Cooling protocol group instruments received 5-second spray cooling every 30 seconds, along with continuous 5% …

Self-Medication Behavior Of Dental Students With Oral Ulceration Lesions: A Cross-Sectional Study In Yogyakarta, Indonesia, Fita Fathaya Iriana, Hendri Susanto, Rosa Amalia

Journal of Dentistry Indonesia

Objective: Self-medication refers to medication behavior for self-diagnosed symptoms. Oral ulcers are self-medicated lesions in the oral cavity. Dental students have different knowledge about oral cavity lesions and may self-medicate using drugs. This study aimed to determine the self-medication behavior of dental students for oral ulcers. Methods: This cross-sectional study was conducted on dental students in the Faculty of Dentistry from different batch years. Purposive sampling was used to select students with oral ulcer lesions in the last six months. A validated and reliable questionnaire was used to assess self-medication behavior. Data collection using the online form. Student behavior …

Neutral Zone Vs. Conventional Denture Fabrication: A Randomized Crossover Study On Denture Performance, Karthik Kannaiyan, Arunima Chauhan, Vijayendranath Nayak, Riyshmaa Devendaran, Dashmita Peterson, Pavittra Kanesan, Vityaa Lakshmi

Journal of Dentistry Indonesia

Objectives: It is challenging to achieve satisfactory outcomes in a complete denture for patients with resorbed residual ridges. Utilization of neutral zone techniques to guide posterior denture tooth arrangement and denture base contouring has been considered for many decades. However, the evidence is still not enough to revise protocols. This study aimed to compare patient satisfaction and stability of neutral zone denture with conventional denture. Methods: A crossover clinical trial was conducted among patients with resorbed mandibular ridges. Each participant received two sets of dentures: one fabricated using the neutral zone technique and one using the conventional method, in a …

Papillon–Lefèvre Syndrome: A Report Of Four Cases In One Family, Muhammed Abdullah Çege, Dilek Aynur Çankal, Ebru Binici, Bilge Turhan Bal

Journal of Dentistry Indonesia

Papillon–Lefèvre syndrome (PLS) is a rare genetic disorder caused by mutations in the cathepsin C gene and inherited in an autosomal recessive pattern. The risk of its occurrence is heightened by consanguineous marriages. PLS affects both genders and presents with hyperkeratotic patches on the hands and feet and precocious aggressive periodontitis. Although teeth initially erupt normally, rapid resorption in periodontal tissues leads to swift tooth loss, and prosthetic rehabilitation is complicated due to aggressive alveolar bone resorption. Case report: In 2021, a brother and sister sought dental treatment at Gazi University’s Faculty of Dentistry. After thorough examinations, the brother underwent …

Comparison Of Pharyngeal Airway And Dentoskeletal Effects Of 2 And 4 Premolar Extraction Treatment In Adult Orthodontic Patients, Esra Genc, Ahmet Karaman

Journal of Dentistry Indonesia

Objective: This study aimed to compare pharyngeal airway and dentoskeletal effects of 2 and 4 premolar extraction treatments in adult patients separately for each gender. Methods: The study was conducted with 60 adults (26 males; 34 females) aged 18-35 years. Individuals were divided into 3 groups as non-extraction, 2-premolar extraction, and 4-premolar extraction. Pre-treatment (T0) and post-treatment (T1) dentoskeletal and pharyngeal airway measurements were performed on cephalometric radiographs. Results: A significant increase in nasopharyngeal airway (PNS-ad2) and anterior hyoid bone movement (CV3ai-H) was observed in the 4-extraction group; whereas in the 2-extraction group, inferior oropharyngeal airway (IAS) narrowing and hyoid …

Effect Of Margin Thickness And Cement Gap On The Fabrication And Fit Accuracy Of Additively Manufactured Crowns In Definitive Resins With Different Filler Content, Mustafa Borga Dönmez, Gülce Çakmak, Çiğdem Kahveci, Amir H. Nejat, Burak Yilmaz, Pinar Altinci

School of Dentistry Faculty Publications

PURPOSE: To evaluate how commercially available composite resins in varying filler content affect the fabrication and fit accuracy (trueness and precision) of additively manufactured (AM) definitive crowns with different margin thickness and cement gaps by comparing them to subtractively manufactured (SM) polymer-infiltrated ceramic crowns. MATERIALS AND METHODS: Two identical unprepared mandibular right first molars were prepared by an experienced prosthodontist for crowns with either 0.5 mm or 1.0 mm chamfer margins, verified using silicone indexes and a periodontal probe, and then digitized with an industrial-grade scanner. These scan files were used to design reference crowns with either 50-µm or 80-µm …

Centering And Shaping Abilities Of Three Different Cross-Section Rotary Systems In Curved Canals Using Cbct, Sherif Shafik

Dentistry

ABSTRACT The aim of the study was to examine the centering and shaping abilities of the E3 Azure, T Blue and XPRS rotary devices in severely curved root canals utilizing CBCT. 51 mesial roots were used in this study, then distributed into three groups of 17 mesial canals each according to the instrumentation technique: T-Blue, E3 Azure and XPS. The final apical size of instrumentation was 30/0.04 for all groups. At 2 mm, all pairwise comparisons were statistically significant, with Azure showing the highest transportation, followed by T-Blue, and XPS showing the least (p< 0.001). At 4 mm and 6 mm, Azure and T-Blue showed significantly higher transportation than XPS (p< 0.001). For XP-Shaper files, centering ratios followed a descending order from 6 mm to 4 mm and were lowest at 2 mm, with all pairwise comparisons being statistically significant (p< 0.001). it was concluded that XPS show lesser transportation and better centering ability.

The Implications Of Alpha-Gal Syndrome For Dental And Medical Treatment, Adam Degenova Mba, Kristi Soileau

New Orleans Dental Association News

Alpha-gal syndrome (AGS) is a potentially life-threatening allergic reaction to a mammalian sugar molecule introduced through tick bites. With rising U.S. diagnoses, dentists must recognize AGS symptoms and understand its implications. Many dental medications and materials contain mammalian-derived ingredients, requiring providers to adapt treatment plans and remain vigilant for delayed allergic responses in undiagnosed patients.