Dentistry Commons^™

Does Adjunctive Low-Level Laser Therapy Provide Additional Benefit Following Temporomandibular Joint Arthrocentesis With Hyaluronic Acid? A Randomized Clinical Trial, Moataz Bahaa, Abdelrahman Fahmy Dr., Hesham Morsi, Mahmoud Elfaramawy

Dentistry

Purpose This study aimed to evaluate whether adjunctive low-level laser therapy (LLLT) provides additional clinical benefit over an optimized arthrocentesis protocol with hyaluronic acid in patients with ADDwoR. Materials and methods From December 2022 to December 2023, a single-blinded prospective randomized clinical trial was conducted at The British University in Egypt’s Department of Oral and Maxillofacial Surgery. The study involved 40 female participants diagnosed with Anterior Disc Displacement without Reduction (ADDwoR). Following TMJ arthrocentesis, subjects were assigned to one of two parallel cohorts: Group A received ten subsequent sessions of low-level laser therapy (LLLT), while Group B served as the …

The Effect Of Two Desensitizing Agents In Treatment Of Dentin Hypersensitivity In Cervical Lesions (A Randomized Clinical Trial), Hend Sayed Ahmed, Mohamed Fouad Haridy, Hoda Fouda, Sara Katarya, Youssef M. Haridy

Dentistry

No abstract provided.

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 …

Dens Invaginatus Prevalence In Maxillary Lateral Incisors In Egyptian Population: Cone Beam Computed Tomography 3-Dimensional Analysis, Marwa Ezz, Sherif Heidar, Mahinaz Reda Abdelhamed

Dentistry

Introduction: Dens invaginatus also called dens in dente is frequent developmental anomaly, most commonly affect maxillary lateral incisors. It can create an inflammatory and microbial pathway that may compromise pulp vitality. Once detected, intervention must be planned. Aim of the study : This study investigated Dens invaginatus prevalence in maxillary lateral incisors in Egyptian population and its categorization according to Oehlers classification using CBCT. Materials and Methods This study assessed 296 cone beam computed tomography scans including a total number of 592 maxillary lateral incisor. Two experienced examiners: an oral and maxillofacial radiologist and an endodontist, inspected Dens invaginatus in …

Bone Marrow Aspirate Concentrate And Xenograft Versus Autograft And Xenograft In The 3d Reconstruction Of Atrophic Maxillary Ridges: A Split-Mouth Randomized Controlled Trial, Moataz Bahaa, Ahmed Abdelmaksoud Dr., Mohamed Mounir Prof, Yasmin Nassar Prof, Mohamed Shawky Dr., Sara Elmoshy Dr.

Dentistry

To evaluate bone quality and quantity after 3D augmentation of vertically and horizontally atrophied maxillary ridges and compare the use of bone marrow aspirate concentrate (BMAC) and xenograft versus autograft and xenograft, both using prebent titanium (Ti) mesh over a virtually augmented model. Materials and Methods: Ten fully edentulous patients with severe maxillary vertical and horizontal bone loss were recruited. Virtual horizontal and vertical bone augmentation was performed for the deficient ridge to produce virtually augmented models for prebent Ti meshes preoperatively. Each patient was rehabilitated with BMAC and xenograft on one side of their mouth (test side) and with …

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.

Prevalence Profile Perceived Stress And Impact On Quality Of Life For Recurrent Aphthous Ulcers: A Cross-Sectional Epidemiological Study In Egypt, Dalia Ghalwash

Dentistry

Recurrent Aphthous Ulcerations (RAU) are among the most frequent oral ulcers with unknown etiology and multiple risk factors. This study assessed the prevalence profile of aphthous ulcers, risk factors, levels of perceived stress, and their impact on quality of life in an Egyptian sample. This study involved screening 4100 individuals from the outpatient clinic, Faculty of Dentistry, The British University in Egypt, and several Egyptian governorates. Patients were subjected to clinical examination and patient interviews for accurate diagnosis and collection of data. The Perceived Stress Scale (PSS) was used to assess levels of perceived stress, and the Oral Health Impact …

Strain Gauge Analysis And Deformation Detection Of Maxillary Denture Bases Reinforced By Cad/Cam Milled Zirconia And Cobalt Chromium (Co-Cr) Frameworks: An In-Vitro Study, Maha Nagy Kamal, Marwa Ezzat Sabet, Ghada Mahmoud Elgindy, Hebatallah Tarek Mohamed

Dentistry

Background A lot of studies have demonstrated the increased hardness of the reinforced maxillary dentures. However, the amount of stress induced by different reinforcement materials under the reinforcement dentures and their effect on the underlying supporting tissues and on the deformation of the denture bases were questionable. This study was conducted to compare the stresses induced within the supporting oral tissues from maxillary denture bases reinforced with computer-aided designing/computer-aided manufacturing CAD/CAM zirconia framework or cobalt chrome (Co-Cr) framework, and to detect the deformation that occurred to these bases. Materials and methods Twenty-six maxillary complete dentures were fabricated and divided into …

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 …

Artificial Intelligence Versus Human Dental Expertise In Diagnosing Periapical Pathosis On Periapical Radiographs: A Multicenter Study, Fatma E.A Hassanen, Radwa R. Hussein, Mohamed Riad Elgarhy, Shaymaa Mohamed Maher, Marwa Ezz, Ahmed Hassen, Sherif Heidar, Amr Edress, Asmaa Abou-Bakr

Dentistry

Periapical pathosis in periapical radiographs must be properly diagnosed for the success of endodontic treatment but is often muddled by 2D imaging limitations and subjective interpretation. Artificial intelligence (AI) offers a solution, but whether the diagnostic granularity of AI versus human clinicians in everyday clinical practice has been adequately explored remains to be addressed. The purpose of this study was to evaluate the diagnostic accuracy of ChatGPT-5 in detecting periapical radiographic abnormalities compared with the three-expert consensus reference standard. Methods: In this diagnostic accuracy retrospective study, 270 periapical radiographs were independently read by a large language model (ChatGPT-5) and a …

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.

Oral Health Related Quality Of Life In A Group Of Egyptian Preschool Children With Early Childhood Caries: A Cross-Sectional Study, Sara Adel Botros, Sara Magdy, Asmaa Abou Bakr, Ola Abdel Geleel

Dentistry

No abstract provided.

Adapt Vr In Dental Education: Boosting Preclinical Skill And Self-Confidence, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Introduction: Preclinical dental training requires extensive feedback and repetition, which traditional manikin exercises often lack. Adapt VR is a cost-effective, immersive system that delivers interactive, adaptive training with real-time feedback. Methods: This comparative study aimed to evaluate the effectiveness of the Adapt VR system in preclinical training. A total of 126 third-year dental students were randomly assigned to an Adapt VR Group 1 (n = 63), acquiring VR learning experience before practicing on laboratory simulators, or a control group (n = 63) who started their training on simulators directly. After practising Class I and II cavity preparations, laboratory performance was …

Effect Of Remineralization And Resin Infiltration On Microhardness, Mineral Content And Cervical Microleakage Of Restored Demineralized Enamel, Sara Adel Botros, Caroline Maged Massieh

Dentistry

No abstract provided.

Effect Of Remineralization And Resin Infiltration On Microhardness, Mineral Content And Cervical Leakage Of Restored Demineralized Enamel., Caroline Maged Massieh, Sarah Adel Botros

Dentistry

Purpose: To evaluate the effect of remineralization and resin infiltration on microhardness, mineral content and microleakage in artificially-induced cervical enamel lesions. Materials and Methods: 50 human central incisors were assigned to 5 study groups (n=10) according to different surface intervention: Group 1: Positive Control (sound teeth not subjected to demineralization); Group 2: Negative Control (teeth subjected to demineralization); Group 3: CPP-ACP paste (remineralization of demineralized lesions with CPP-ACP, Tooth Mousse, GC); Group 4: HAp toothpaste (remineralization of demineralized lesions subjected with HAp, Herbadent Remin); Group 5: Resin infiltration (resin infiltration of demineralized lesions with ICON, DMG). Microhardness (MH) was evaluated …

Laser Versus Fluoride Varnish In Management Of Dentine Hypersensitivity In Non-Carious Lesions: A Randomized Clinical Trial, Hend Sayed Ahmed, Mohamed Fouad Haridy, Hoda Fouda, Amr Adham Shalaby, Youssef M. Haridy

Dentistry

No abstract provided.

Effect Of Different Finishing And Polishing Systems On Surface Roughness And Color Stability Of Composite Cad/Cam Blocks (In-Vitro Study), Hend Sayed Ahmed, Mohamed Fouad Haridy, Noura Alzayyat, Reem Mohamed Gadao

Dentistry

No abstract provided.

Dual Regulation Of Osteogenesis And Inflammation By Pomegranate (Punica Granatum L.) Extract In Periodontal Ligament-Derived Stem Cells: Implications For Regenerative Medicine, Mai Hafez

Dentistry

Objectives

This article aims to compare the osteogenic along with anti-inflammatory activity of different concentrations of pomegranate extract (PG) on human periodontal ligament-derived stem cells (hPDLSCs) in vitro.

Materials and Methods

hPDLSCs were acquired from the root surface of removed molars, cultured, and then distinguished by flow cytometry analysis and several lineage differentiation potentials. To identify the effect of PG on hPDLSCs' viability, an MTT assay was performed. hPDLSCs were maintained in osteogenic induction medium with varying concentrations of PG. At the end of the induction period, osteogenesis was assessed using Alizarin Red staining, ALP assay, and qRT-PCR to determine …

Cytocompatibility, Osteogenic Potential, Antibacterial And Antibiofilm Efficacy Of A Calcium-Silicate-Based Intracanal Medication, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

This study assessed the biological and antimicrobial properties of a calcium silicate-based material and calcium hydroxide (CH) when used as intracanal medications. MTT assay, osteogenic differentiation of human periodontal stem cells (hPDLSCs), cell mineralization-assay, and determination of ALP activity were assessed to investigate the biological properties. While the agar well diffusion, crystal violet (CRV) assay and LIVE/DEAD staining of dentin slices infected with a mature E. faecalis biofilm were used to assess the antimicrobial properties. Normally distributed data were analyzed using one and two-way ANOVA and post hoc Tukey test, while for non-normally distributed data Kruskal Wallis and Dunn's tests …

Automatic Teeth Segmentation In Panoramic Radiographs Using Attention U-Net, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: The aim of this study is to investigate the effectiveness of the Attention U-Net architecture for teeth segmentation in panoramic dental images. By exploring the potential of Attention U-Net, the study aims to contribute to the development of more precise and automated dental imaging analysis, which could enhance diagnosis, treatment planning, and computer-aided dental systems. Subjects and methods: The TUFTS University dataset consisting of 1000 de-identified panoramic radiographs was used for training and testing an Attention U-Net architecture with 10-fold cross-validation. These scores surpass those of all other networks implemented on the same dataset. using a newly available benchmark …

Enhancing Severely Compromised Premolar Strength: Role Of Cusp Reduction Design In Cad/Cam Composite Restorations, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

The objective of this study was to assess the effect of different designs and depths of cusp reduction on fracture resistance of maxillary permanent premolars restored with CAD/CAM composite restorations. A total of 42 sound maxillary premolars were used. Standardized MOD cavities were prepared in all specimens. Teeth were randomly divided according to form of cusp reduction into three main groups (n = 14); G1:MOD cavities restored with inlays with no cusp reduction, G2:MOD cavities restored with overlays with buccal and palatal anatomical cusps reduction, G3; MOD cavities restored with overlays with buccal and palatal flat cusps reduction. Groups 2 …

Effect Of Caries Removal Techniques On Micro-Tensile Bond Strength Of Cad/Cam Composite Blocks To Dentine (In-Vitro Study), Hend Sayed Ahmed, Mohamed Fouad Haridy, Hoda Fouda, Basma Khalifa, Youssef M. Haridy

Dentistry

No abstract provided.

Clinical Evaluation Of The Remineralizing Potential Of Biomimetic Scaffolds On Enamel White Spot Lesions: A 12-Month Randomized Controlled Trial, Eman Soliman, Wegdan Abdelfattah, Doaa Ragai M Ahmed, Dina Nagui, Ahmed Holiel

Dentistry

No abstract provided.

The Effects Of Cigarette Smoke And Heated-Tobacco Aerosol On Streptococcus Mutans Adhesion And Surface Topography Of Dental Hard Tissues In Vitro, Mahmoud Bakr, Mohamed Shamel, Mahmoud Al Ankily

Dentistry

No abstract provided.

The Effects Of Cigarette Smoke And Heated-Tobacco Aerosol On Streptococcus Mutans Adhesion And Surface Topography Of Dental Hard Tissues In Vitro, Mohamed Shamel, Mahmoud Al Ankily, Nourhan Taha

Dentistry

No abstract provided.

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.

Clinical Evaluation Of Ozone Gel Versus Hyaluronic Acid Gel On Palatal Wound Following Free Gingival Graft Harvesting: A Randomized Clinical Trial, Hisham Tarek, Nesma Shemais, Dalia Ghalwash, • Ahmed El Barbary

Dentistry

Objective: This randomized clinical trial (RCT) compares the effectiveness of ozone gel (GeliO3) and hyaluronic acid (HA) gel(Gengigel) in enhancing wound healing and reducing postoperative discomfort following free gingival graft (FGG) harvesting.Methods: Fifty-six patients requiring FGG for mucogingival defects were randomly assigned into two groups: the ozone gel group and the HA gel group. The primary outcome was postoperative pain, assessed using the visual analog scale (VAS) and analgesic consumption. Secondary outcomes included wound healing, evaluated using the Landry healing index, and color match assess-ment. Data were analyzed using appropriate statistical tests with a significance level of p< 0:05.Results: Both treatment groups exhibited significant pain reduction over time (p< 0:001). Although there was no statistically significant difference between the groups, a faster decline in pain was observed in the ozone group by Day 3. Analgesic consumption was significantly lower in the ozone group on Days 2 and 3 (p ¼ 0:042). The healing index and color match scores showed a steady improvement in both groups, with the ozone group demonstrating slightly higher values at various time points, though not statistically significant.Conclusion: Both ozone gel and HA gel effectively enhanced post-FGG healing, reduced pain, and improved tissue esthetics.Ozone therapy showed potential advantages in early pain relief and lower analgesic dependence. These findings suggest that ozonetherapy may serve as an alternative or adjunctive treatment for palatal wound management in periodontal surgery. Furtherresearch is needed to confirm its clinical superiority over HA gel.

Automated Assessment Of Periapical Health Based On The Radiographic Periapical Index Using Yolov8, Yolov11, And Yolov12 One-Stage Object Detection Algorithms, Shehabeldin Mohamed Saber Prof.Dr., Ahmed A. Torky Phd

Dentistry

This study investigates the application of recent YOLO (You Only Look Once) algorithms for automated detection and classification of apical periodontitis using the Periapical Index (PAI) scoring system (1–5). A dataset of 699 digital periapical radiographs was collected from diverse sources, de-identified, and annotated by calibrated experts before splitting into training, validation, and testing sets. Three deep learning models (YOLOv8m, YOLOv11m, YOLOv12m) were trained and their performance was evaluated using Precision, Recall, F1 score, mean average precision (mAP50), Intersection over union (IoU), and confusion matrices. Two-sided McNemar’s exact test was further conducted to compare models on lesion-level outcomes. The results …

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 …

Low Dose Cone Beam Computed Tomography Versus High Dose Cone Beam Computed Tomography In Measuring Furcation Involvements: (Diagnostic Accuracy Study), Marwa Ezz, Cairo University, Misr University For Science & Technology

Dentistry

Accurate diagnosis of furcation defect is essential in periodontal therapy planning. Cone beam computed tomography (CBCT) provides three-dimensional visualization, but higher radiation doses remain a concern. This study aims to assess and compare the diagnostic accuracy of low-dose CBCT (LD-CBCT) and high-dose CBCT (HD-CBCT) in detecting and measuring furcation defect using a pig mandible. Detection and accurate assessment of periodontal disease is important to determine the tooth prognosis and treatment. Radiographic assessment provides information about the pattern and extent of the furcation defect. CBCT provides unique 3D images used for diagnosis and treatment plans, but its use in periodontology not …