Dentistry Commons^™

Perception, Usage, And Concerns Of Artificial Intelligence Applications Among Postgraduate Dental Students Cross-Sectional Study, Dalia Ghalwash, Asmaa Abou-Bakr, Susan Sarhan, Amira Badra, Hadeel Almalahy

Dentistry

Background

Future dental applications of artificial intelligence (AI) are anticipated to be widely adopted across all dental specialities. However, there are some concerns among many users about the accuracy of the given information. Therefore, this study aimed to investigate postgraduate’ dental students’ perception, usage, and concerns towards AI systems’ applications.

Materials and methods

An online self-administered survey, consisting of 19 closed-ended questions in the English language, and a 3-point Likert-type scale was used to obtain a simple and straightforward response from participants in a “forced-choice” response format that was distributed to postgraduate dental students in the faculty of dentistry of …

Finite Element Analysis Of Stress Distribution In Unilateral Distal Extension Partial Dentures: A Comparison Of Four Attachment Designs, Maha Nagy Kamal, Haitham Amr, Abdallah Shokry

Dentistry

No abstract provided.

Hypersensitivity Assessment Of Non-Carious Cervical Lesions After Treatment With Different Desensitizing Protocols: A Randomized Clinical Trial, Mohamed Fouad Haridy, Hoda Omar Fouda, Mohamed Tarek Heiba, Ahmed Fawzy Aboelezz, Amr Faisal

Dentistry

No abstract provided.

Efficacy Of Manuka Honey Oral Rinsein Treatment Of Xerostomia Among Elderlypatients: A Randomized Controlled Trial, Dalia Ghalwash, Asmaa Abou-Bakr, Ayman Elgawish

Dentistry

Background Xerostomia is a common complaint among elderly patients. Due to the anti-inflammatory effect, Manuka honey could be a promising alternative remedy for many medical conditions, including xerostomia. The present study aimed to evaluate the effectiveness of Manuka honey oral rinse as a novel management for xerostomiain elderly patients. Methods This study was designed as a randomized, single-blinded clinical trial. 42 elderly patients who were allevaluated for the presence of xerostomia and hyposalivation were randomly allocated into 3 equal groups. The interventions were used 3 times per day for 1 month as follows: Manuka honey oral rinse in group I, …

Evaluation Of Marginal And Internal Fit In Cad/Cam-Fabricated Indirect Restorations, Sara Adel Botros, Mohamed Samy Salama, Hend Sayed Ahmed, Ayman Helmy

Dentistry

No abstract provided.

Evaluation Of Marginal Gap And Fracture Resistance Of Different Cad/Cam Blocks For Indirect Restorations Of Mutilated Molar Teeth, Hend Sayed Ahmed, Hossam El Mandouh Tawfeek, Ahmed Refaat Mohamed

Dentistry

No abstract provided.

Effect Of Different Cavity Designs And Cad/Cam Blocks On Fracture Resistance Of Maxillary Premolars With Mod Cavities, Hend Sayed Ahmed, Mohamed Fouad Haridy, Radwa Nagy Ahmed, Shimaa Elsayed Elhusseiny

Dentistry

No abstract provided.

Retreatability Of Bioceramic And Resin-Based Root Canal Sealers Using Xp Shaper Rise: An In Vitro Study, Muhammed Ahmed Omar Abouel Seoud Phd, Shehab Saber

Dentistry

Aim: The purpose of this study was to investigate in-vitro the retreatability of premixed calcium-silicate-based sealer versus resin-based sealer when combined with gutta-percha using the single-file system XP-endo Rise.Materials and methods: 26 canals in typodont acrylic Nissin teeth were instrumented with E-flex blue rotary instruments up tosize 0.35mm and taper of 4%. Root canals were divided into two groups, obturated using either hydraulic condensation techniquewith a bioceramic sealer (n=13) or continuous wave of compaction (CWC) technique with a resin-based sealer (n=13). Theretreatment procedure was done for both groups using the XP-endo Rise instruments. The time required to complete theretreatment procedures …

Accuracy Of Endodontic Access Guides Printed By A Costefficient 3d Printer (An In-Vitro Study), Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: This study evaluated the precision and trueness of endodontic access guides fabricated using a cost-effective desktop LCD 3D

printer compared to a higher-cost SLA printer for guided endodontics.

Materials and methods: Thirty-two root canals from Nissin typodont teeth were divided into two groups: LCD and SLA. Virtual

planning was performed, and endodontic guides were fabricated using both 3D printing technologies. Pre-operative and postoperative

cone beam tomography (CBCT) scans were taken, and the linear deviation between the planned and actual access paths

was measured at two axial levels: the occlusal entry point and the canal orifice. Statistical analyses were conducted …

Retreatability Of Bioceramic And Resin-Based Root Canal Sealers Using Xp Shaper Rise: An In Vitro Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: The purpose of this study was to investigate in-vitro the retreatability of premixed calcium-silicate-based sealer versus resinbased

sealer when combined with gutta-percha using the single-file system XP-endo Rise.

Materials and methods: 26 canals in typodont acrylic Nissin teeth were instrumented with E-flex blue rotary instruments up to

size 0.35mm and taper of 4%. Root canals were divided into two groups, obturated using either hydraulic condensation technique

with a bioceramic sealer (n=13) or continuous wave of compaction (CWC) technique with a resin-based sealer (n=13). The

retreatment procedure was done for both groups using the XP-endo Rise instruments. The time required …

Post-Operative Pain After Non-Surgical Root Canal Treatment With A Single Cone/ Bio-Ceramic Sealer Based Obturation: A Randomized Clinical Trial, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: compare the post- operative pain associated with sealer-based obturation technique (SBO) using bioceramic sealer and a (CWC) obturation technique with a resin-based sealer.

Materials and methods: two-arm randomized clinical trial with 2 parallel groups 20 patients each, after shaping the canals to a minimum dimension of 30/.04, except for a single middle mesial canal, which was shaped to 25/.04 patients randomly allocated into two groups based on the obturation material used. To ensure patient privacy, each name was replaced with a case number. Patients documented their pain on a 0–10 (VAS) at: 4 hours, one day, and two days …

Intracanal Microbial Reduction After Root Canal Preparation With Different Tapered Instruments. An Ex-Vivo Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: The objective of this ex vivo study was to assess the dual impact of instruments taper and irrigation activation methods on bacterial reduction in infected root canals.

Materials and methods:42 extracted human molar teeth were inoculated with Enterococcus faecalis for 2 weeks to develop a mature biofilm. The samples were divided into four experimental groups and two control groups. The experimental groups underwent root canal preparation using two different instruments: XP Shaper (taper 0.04) and Reciproc Blue R25 (taper 0.08). Additionally, two different activation methods were tested: mechanical (XP Finisher) and sonic (EDDY). Bacterial reduction was assessed using Colony …

Evaluation Of Thymoquinone Cancer Chemo-Preventive Effect On Oral Leukoplakia: A Randomized Clinical Trial, Dalia Ghalwash, Fatheya Zahran

Dentistry

Aim: This randomized clinical trial aimed to investigate the chemo-preventive role of thymoquinone in Nigella sativa extract in managing oral leukoplakia clinically, histologically, and at the molecular level. Methods: A total of 48 patients with oral leukoplakia were randomly allocated to three groups; Group A received local muco-adhesive tablets with Nigella sativa extract in 10 mg/kg dose, for three months, Group B same intervention but with Nigella sativa extract in 5 mg/kg dose, and lastly Group C was the placebo group. The outcomes assessed were clinical improvement, histologic improvement (degree of dysplasia), and molecular biomarkers Ki-67 and caspase-3 by immunohistochemistry. …

Evaluation Of The Remineralizing Agents After Orthodontic Bracket Debonding: A Sem-Edx Investigation, Noha Ibrahim Abdelrahman Professor

Dentistry

Objectives: To compare the remineralizing efficacy of (Fluoride (Fl) Varnish, Nanohydroxyapatite (n-HAp) serum and NovaMin-containing toothpaste) on premolars subjected to orthodontic debonding and a pH-cycling model. Methods: 60 human premolars were divided into six groups (n= 10). Group IA, sound enamel, IB, orthodontically treated premolars, IC, orthodontically treated premolars subjected to demineralization cycles. Three experimental groups included orthodontically treated premolars subjected to demineralization cycles and treated with Fl varnish (IIA), n-HAp serum (IIB), and NovaMin toothpaste (IIC). Surface topography and mineral content were evaluated using SEM-EDX analysis, and data were statistically analyzed using ANOVA test and Tukey’s post-hoc test. Results: …

Effect Of Resin Restorative Material Type And Layering Techniques On The Fracture Resistance Of Maxillary Premolars, Mohamed Fouad Haridy, Radwa Ahmed Nagy, Shimaa El-Sayed El-Husseiny

Dentistry

No abstract provided.

Fracture Resistance Of Mutilated Maxillary Premolars Restored With Different Direct & Indirect Restorations, Hend Sayed Ahmed, Mohamed Fouad Haridy, Hanan Elsherbiny, Samar Swelam

Dentistry

No abstract provided.

Comparison Between Relining Of Ill‑Fitted Maxillary Complete Denture Versus Cad/ Cam Milling Of New One Regarding Patient Satisfaction, Denture Retention And Adaptation, Maha Nagy Kamal

Dentistry

No abstract provided.

Protective Effects Of Nigella Sativa Against Acrylamide-Induced Toxicity In Submandibular Salivary Glands Of Albino Rats: A Histological And Molecular Study, Salma Awad Taghyan, Elham Fathy Mahmoud, Rasha Mohamed Taha, Mohamed Shamel

Dentistry

No abstract provided.

Augmenting The Posterior Mandible Using Xeno Grafts: A Randomized Clinical Trial, Moataz Bahaa Dr., Amr Amin Ghanem Prof, Mohamed Sobhy Dr., Karim Abdelmohsen Prof

Dentistry

Aim: To assess the vertical height gain in atrophic posterior mandible using different forms of xenograft through an interpositional bone grafting procedure (sandwich technique). Materials and methods: Patient were separated into two groups, Group A (Study Group): received augmentation through the use of an organic bovine bone particulate. Group B (Control Group): received augmentation through the application of an organic bovine bone block. This study was conducted on 16 patients suffering from posterior mandibular partial edentulism with an inadequate bone height enough for favorable implant placement. The alveolar vertical dimension measured ranges from or equal to 5-8 mm from roof …

Radiographic Assessment Following Maxillary Bone Augmentation Using Patient Specific Titanium Meshes Loaded With Bone Marrow Aspirate Mixed With Xenograft Versus Xenograft Mixed With Autografts Only: A Randomized Clinical Trial, Moataz Bahaa Dr., Ahmed Moustafa Abdelmaksoud Dr., Mohamed Mounir Dr., Yasmin Nassar Prof

Dentistry

Aim: The aim of the study is to evaluate the efficacy of three-dimensional bone augmentation in maxillary atrophied alveolar ridges by comparing the utilization of bone marrow aspirate concentrate along with a mix of autograft and xenograft versus autograft and xenograft alone. utilizing patient-specific titanium meshes. Subjects and methods: Ten patients experiencing severe vertical and horizontal deficiencies in the entire maxillary arch underwent guided bone regeneration. Utilizing specialized software, virtual bone augmentation were performed for the deficient ridge across the entire maxillary alveolus. This process involved generating virtually augmented models to guide the preoperative prebending of titanium meshes. In the …

Introducing Flowable Resin Composite As A Novel Palatal Dressing After Free Gingival Graft Harvesting: A Randomized Clinical Trial, Dalia Ghalwash, Mohamed Temraz, Ahmed Elbarbary, Eman Khalil, Nesma Shemais

Dentistry

Objectives This study aimed to evaluate the effectiveness of using a flowable resin composite compared to periodontal pack in reducing postoperative morbidity after free gingival graft (FGG) harvesting. Materials and methods In this randomized controlled clinical trial, 34 patients requiring FGG were allocated into two equal groups. The intervention group received a flowable resin composite dressing over the palatal wound, while the control group received Coe-Pak. Postoperative pain was assessed using a Visual Analogue Scale (VAS) and mean analgesic consumption over 14 days. Secondary outcomes included wound size and color match of the healing site assessed at weeks 1, 2, …

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

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 …

Influence Of Different Finishing And Polishing Protocols Of Composite Cad Cam Blocks On Surface Roughness And Biological Response Of Gingival Mesenchymal Stem Cells, Hend Sayed Ahmed, Mohamed Fouad Haridy, Mohamed Shamel, Houda Fouda, Raghda Khalil, Ahmed Refaat

Dentistry

The surface quality of composite CAD/CAM restorations is vital in aesthetics, longevity, and the biological response of

surrounding gingival tissues. Yet, little is known about how different finishing and polishing techniques influence cellular

behavior at the tissue interface. This study aimed to evaluate how various finishing and polishing systems affect the surface

roughness of composite CAD/CAM blocks, and how these differences influence the attachment, viability, and inflammatory

response of gingival mesenchymal stem cells (GMSCs). Seventy-seven composite CAD/CAM specimens were prepared and

subjected to one-step, two-step, and multi-step finishing/polishing protocols, with or without polishing paste. Surface rough-

ness was measured using …

Red Palm Oil Mitigates Vitamin A Deficiency In Parotid Salivary Glands An Animal Study, Sara Elbanna, Mohamed Mansy, Mohamed Shamel, Mahmoud Al Ankily, Caroline Maged Massieh

Dentistry

No abstract provided.

Epidemiology Of Recurrent Herpes Labialis Among Dentistry Students: A Cross-Sectional Survey In Egypt, Sara Abdelwahed, Dalia Ghalwash, Al Hassan Diab

Dentistry

Aim: Recurrent herpes labialis (RHL) is a common viral infection with significant psychosocial and clinical implications. Dental students are particularly vulnerable due to stress and frequent patient contact, yet data on their epidemiology in Egyptian cohorts are scarce. The study aimed to determine the prevalence, recurrence patterns, and associated risk factors of RHL among dentistry students in Egypt. Materials and Methods: A cross-sectional survey was conducted among 559 dentistry students at the British University in Egypt. A structured, self-administered questionnaire captured sociodemographic data, history of RHL episodes, frequency, severity, and triggering factors. Data were analyzed using descriptive statistics and Chi-square …

Synergistic Potential Of Ivermectin And Doxorubicin In Oral Squamous Cell Carcinoma: An In Vitro Investigation, Dalia Ghalwash, Shereen Nader, Rana Tantawy

Dentistry

Background Doxorubicin (DOX) is widely used in cancer therapy, but its role in oral squamous cell carcinoma (OSCC)is limited by resistance and dose-related toxicities. Ivermectin (IVM), an antiparasitic agent with emerging anticancer properties, may enhance DOX efficacy. This study evaluated the effects of IVM alone and in combination with DOX on OSCC cell lines.

Methods In vitro assays, including MTT viability, apoptosis (Annexin V/PI), cell cycle analysis, RT-qPCR of apoptotic, proliferative, and inflammatory markers, and oxidative stress assays, were performed on HN9 and HEp-2 OSCC cell lines, with OEC as control.

Results IVM reduced cancer cell viability in a dose-dependent …

Effect Of Smoking And Finishing And Polishing Protocol On Color Stability And Surface Roughness Of Resin Composite, Fatma Makkeyah, Mohamed Samy Salama, Sara Adel Botros, Mohamed Shamel, Mahmoud Al Ankily

Dentistry

Purpose To investigate the influence of smoking and finishing and polishing protocol on color stability and surface roughness of resin composite. Materials and methods Seventy-two discs fabricated from supra-nanofilled composite were divided to 6 groups according to: Tobacco Product (Conventional Cigarette/CS and Heated Tobacco/HTP); and Finishing and Polishing Protocol (Control/C, Multi-step finishing system/FS, and Medium-grit abrasive bur + two-step polishing system/ PS). After finishing and polishing, specimens were exposed to a total of 600 cigarettes, divided into 20 each day, simulating 30 days of smoking. Color parameters were detected using a spectrophotometer. Surface roughness (Ra) was measured before and after …

Fracture Resistance Of Mutilated Maxillary Premolars, Hend Sayed Ahmed, Mohamed Fouad Haridy, Hanan Elsherbiny, Samar Swelam

Dentistry

No abstract provided.

Effect Of Resin Restorative Material Type And Layering Techniques On The Fracture Resistance Of Maxillary Premolars, Hend Sayed Ahmed, Mohamed Fouad Haridy, Radwa Nagy, Shimaa Elsayed Elhusseiny

Dentistry

Abstract

Objectives: This study aimed to evaluate the fracture resistance of premolar teeth with standardized mesio-

occluso-distal (MOD) cavities, restored using various techniques (layering techniques and composite-resin

restorations)

Materials and Methods: Seventy intact maxillary premolars with standardized MOD cavities were randomly

divided into seven groups (n=10): G1 control intact teeth; G2: MOD cavities left unrestored; G3: restored using an

incremental technique with nanohybrid resin composite (Neo Spectra TM ST, Dentsply Sirona); G4: restored in

bulk using a flowable composite (SDR Flow+, Dentsply Sirona); G5: bulk-filled with a multihybrid composite

(Tetric N Ceram, Ivoclar); G6: restored using an incremental technique with …

Fracture Resistance Of Maxillary Premolars Restored With Different Dentin Replacement Protocols, Hend Sayed Ahmed, Shadwa Hatem Kabil, Maha Elbaz

Dentistry

Aim: The aim of this research was to investigate the fracture resistance of premolar teeth with standardized

mesioocclusodistal (MOD) cavities restored with different dentin replacement protocols.

Subjects and methods: Sixty sound maxillary premolar teeth with standardized MOD cavities were assigned

to six groups (n=10): G1: sound teeth (positive control); G2: unrestored premolars with MOD cavities

(negative control); G3: restored incrementally with nanohybrid resin composite; G4: restored by bulk fill

flowable followed by nanohybrid resin composite; G5: restored with packable fiber-reinforced composite

followed by nanohybrid resin composite and G6: restored with flowable fiber-reinforced composite followed

by nanohybrid resin composite. After being …