Dentistry Commons^™

Assessment Of Saudi Arabians' Awareness Of Oral Health And Oral Hygiene In A Group Of 200 Dental Clinic Participants, Mahmoud Al Ankily, Mohamed Shamel, Sara Abdel Wahed, Mohamed Mansy

Dentistry

Oral mucosa lesions cause oral sores, discoloration, and anomalies. Oral mucosa genetic and developmental disorders may affect anybody. Oral cavity carcinoma causes 4% of all malignancies worldwide. Early detection of oral cancer improves survival rates. Oral precancerous diseases include color, abnormalities, surface texture, and location that predict malignancy. The goal of this study was to examine the Saudi Arabians' awareness of oral health and oral hygiene. An observational, cross-sectional approach was adopted for the study. Individuals with a probable malignant oral disease who visited an OPD at a dental hospital and had relevant behaviors were recruited in the study. In …

Aesthetic Management Of Peri-Implant Soft Tissue Dehiscence. A Case Report Of A Combined Perio Restorative Approach, Ahmed Hamdy, Dalia M. Ghalwash

Dentistry

This case report designates a combined perio restorative technique in the management of peri-implant 3-dimensional soft tissue defects in an esthetic zone. A staged approach was implemented to treat this case; the first stage was planned to treat the horizontal defect around the implant, in which crown was removed, and coronally advanced flap with connective tissue graft were used to treat the soft tissue defect. At the second stage, a modified coronally advanced flap with connective tissue graft was used to augment the vertical defect, and no vertical releasing incision was made in this stage to maximize the blood supply …

Double Immunohistochemical Analysis Of Pcna And Fak Expression In Selected Odontogenic Lesions, Safaa Baz, Sally Ibrahim

Dentistry

Background: Odontogenic neoplasms and cysts have diverse biological behaviors, ranging from indolence to aggression along a spectrum. The proliferating cell nuclear antigen (PCNA) is an antigen involved in DNA synthesis and proliferation. Focal adhesion kinase (FAK) is a cytoplasmic molecule associated with cellular signaling, growth, and invasion. PCNA and FAK markers have been shown to be involved in neoplastic proliferation, invasion, and migration. Hence, an immunohistochemical assay of PCNA and FAK can be used as a predictive tool for the level of aggressive behavior of odontogenic lesions. Methods: The current study was conducted to evaluate the expressions of PCNA and …

Enhanced Periodontal Ligament Stem Cell Viability And Osteogenic Differentiation On Two Implant Materials: An Experimental In Vitro Study, Sara Fikry, Shereen Nader Dr, Engy Farag Dr

Dentistry

Background: Surface roughness of dental implants impacts the survival of adult periodontal stem cells and rate of differentiation. This research was conducted to test how human periodontal ligament stem cells behaved on yttria stabilized tetragonal zirconia polycrystals and polyetheretherketone (PEEK) discs with different surface topographies. Methods: Discs roughening was prepared by sandblasting. Stem cells were cultivated on zirconia discs with a polished surface, PEEK discs with a polished surface, sandblasted zirconia discs and sandblasted PEEK discs. Cells viability was assessed after 24, 48, 72 hours. Scanning electron microscopy was used to examine the adherence and attachment of cells. Osteoblastic differentiation …

Effect Of Different Span Lengths With Different Total Occlusal Convergences On The Accuracy Of Intraoral Scanners, Omar Elsergany

Dentistry

Purpose: The aim was to assess the effect of span lengths and total occlusal

convergence (TOC) on the accuracy of intraoral scanners .

Materials and methods: Two typodont acrylic teeth models were prepared to receive

fixed dental prostheses with three different span lengths. Span 1: between maxillary

canines; span 2: between maxillary second premolars; and span 3: between maxillary

In recent years, the employment of digital techniques in

1–4

(CAD–CAM). Obtaining a digital scan using an intrao-

ral scanner (IOS) is the first step of this digital workflow.

This technique, when compared to traditional impression

techniques, has shown exceptional accuracy …

Effect Of Different Sealers On The Cytocompatibility And Osteogenic Potential Of Human Periodontal Ligament Stem Cells: An In Vitro Study, Shehabeldin Mohamed Saber Prof.Dr., Shereen Nader

Dentistry

Background: There is tendency for unavoidable sealer extrusion in some clinical cases. This might adversely affect host stem cells and affect healing. This study aimed to investigate the effect of different sealers on the cytocompatibility and osteogenic potential of human periodontal ligament stem cells (hPDLSCs). Methods: The cytotoxic effect of the extracted elutes of VDW.1Seal (VDW.1), Endosequence BC Sealer HiFlow (ES), GuttaFlow-2 (GF), and ADSeal (AD-S) on the hPDLSCs was determined using the MTT assay. Cell proliferation and migration were assessed by the scratch wound healing assay. Osteogenic differentiation potential was assessed. Measurement of pH values and calcium ions release …

Assessment Of The Clinical Outcomes Of Single Visit Regenerative Endodontic Procedure In Treating Necrotic Mature Teeth With Apical Periodontitis Using Biological Irrigating Solution, Mohamed Medhat Kataia

Dentistry

Aim: to observe the effect of propolis and its nano counterpart when used as final irrigation materials and compare them to the conventionally used EDTA and saline on the clinical outcomes of necrotic mature anterior teeth with apical periodontitis after treating them using regenerative endodontic procedure.

Methodology: 84 patients who fulfilled the inclusion criteria were recruited for the study. Access cavity was prepared, rubber dam isolation was done. Mechanical preparation was performed up to #60 using K-files. Final irrigation procedure was done as follows:

Group A (Control ): Final irrigation was done using saline (3ml/min) followed by 17% …

Parallel Endodontic Education Via Social Media: An Exploratory Survey Study, Nawar Nawar, Shehabeldin Mohamed Saber Prof.Dr., Mostafa M.A. Elkholy, William Nguyen Ha, Sebastian Burklein

Dentistry

No abstract provided.

How Loss Of Tooth Structure Impacts The Biomechanical Behavior Of A Single-Rooted Maxillary Premolar: Fea, Nawar Naguib Nawar, Roaa Abdelwahab, Engy M. Kataia, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

No abstract provided.

Enhanced Human Periodontal Ligament Stem Cell Viability And Osteogenic Differentiation On Two Implant Materials: An Experimental In Vitro Study, Engy Adel Ahmed Farag, Sara Fikry Dr, Shereen N. Raafat

Dentistry

Background: Surface roughness of dental implants impacts the survival of adult periodontal stem cells and rate of differentiation. This research was conducted to test how human periodontal ligament stem cells behaved on yttria stabilized tetragonal zirconia polycrystals and polyetheretherketone (PEEK) discs with different surface topographies.

Methods: Discs roughening was prepared by sandblasting. Stem cells were cultivated on zirconia discs with a polished surface, polyetheretherketone (PEEK) discs with a polished surface, sandblasted zirconia discs and sandblasted polyetheretherketone (PEEK) discs. Cells viability was assessed after 24, 48, 72 hours. Scanning electron microscopy was used to examine the adherence and attachment of cells. …

Effect Of Overlay Material Type And Design On Fracture Resistance Of Mod Cavities In Molars. (In-Vitro Study), Sara Adel Botros, Mohamed Fouad Haridy, Shaimaa Gad

Dentistry

Objective: To evaluate the influence of restoration material type (CAD/CAM lithium disilicate blocks and reinforced composite blocks) and restoration design on fracture resistance of molars with MOD cavities. Methods and Materials: A total of 54 sound human molars were divided into 2 groups (n=9) according to: 1) material type: lithium disilicate CAD/CAM blocks and reinforced composite CAD/CAM blocks; 2) restoration design: overlay with intra-coronal extension or without intra-coronal extension. Additional 18 samples were assigned to positive control group (sound molars, n=9) and negative control group (unrestored MOD cavities, n=9). Standardized MOD cavities were prepared with occlusal width 3 mm, cavity …

Effect Of Different Digital Impression Techniques On The Trueness Of Post Space Scans With Fixed Cervical Diameter, Omar Elsergany

Dentistry

Objective: The aim of this study was to measure the trueness of post space impression by 2 digital impression techniques: Impression Scanning (IS) and Model Scanning (MS) with cervical diameter 3 millimeters. Materials and methods: Fourteen freshly extracted single rooted lower second premolars were endodontically treated using Wave-One single file technique. Then mounted in acrylic blocks parallel to long access using a dental surveyor 2mm above the CEJ, drills in sequence 1.4 and 1.6 millimeter then diamond stone with 3 millimeter diameter were used for teeth preparation with a standardized depth of 8mm. Teeth were scanned by reference scanner InEos5 …

Assessment Of The Effect Of Chin Augmentation With Hyaluronic Acid Filler On Facial Soft Tissues Using Lateral Cephalometric Radiograph, Noha Ibrahim Abdelrahman Professor, Islam Hassan Prof.

Dentistry

Aim: To assess the effect of chin augmentation using Hyaluronic acid filler on facial soft tissues using lateral cephalometric radiographs. Material and methods: Prospective case series. 10 adult female patients with mild chin deficiencies. Patients underwent chin augmentation using Restylane Defyne hyaluronic acid dermal filler. Each patient received 2ml Filler injected in the chin area. Lateral cephalometric radiographs were taken at three-time intervals for each patient. The first radiograph taken before augmentation procedure, second radiograph two weeks after filler injection and the third and final radiograph taken six months after the augmentation procedure. Two readings were used to assess the …

Effect Of Proximal Caries-Driven Access On The Biomechanical Behavior Of Endodontically Treated Maxillary Premolars, Engy M. Kataia

Dentistry

Introduction: This study investigated the effects from the carious cavity and access from it on the fracture resistance of endodontically treated maxillary premolars using finite element analysis (FEA). Methods: A maxillary premolar was used to compare three types of access cavity related to having a proximal carious defect: Caries-driven access (CDA), Conservative access that has a mesial component (MCA) as well as traditional access with the same mesial component (MTA). Cyclic loading was simulated on the occlusal surface and number of cycles till failure (NCF) was compared to the intact tooth model (IT). Mathematical analysis was done to evaluate the …

Comorbidity Of Hypertension And Chronic Renal Failure And Their Impact On Oral Complications: A Cross-Sectional Study., Dalia Ghalwash, Sara Abdelwahed, Asmaa Abobakr

Dentistry

The present study aimed to investigate the influence of both end-stage renal diseases (ESRD) and hypertension (HTN) on the various oral manifestations and periodontal condition, to evaluate and compare the oral manifestations and periodontal health status in hypertensive patients with ESRD versus control, and to explore any possible correlation of the oral findings with systemic disease status. This was a cross-sectional study which included two equal groups of patients, Group I were hypertensive patients with ESRD and Group II were hypertensive patients only. All patients were hypertensive and were on antihypertensive medications. Regarding the incidence of oral lesions in both …

Evaluation Of The Effect Of Platelet-Rich Plasma Versus Platelet-Rich Fibrin On The Rate Of Tooth Movement Duringa Lignment Of Mandibular Anterior Crowding, Noha Ibrahim Abdelrahman Professor

Dentistry

Aim: To evaluate the efficiency of Platelet Rich Plasma vs. Platelet Rich Fibrin on overall leveling and alignment time of mandibular anterior crowding. Subjects and methods: Thirty-six females (18-25 years) with mandibular anterior crowding were randomly allocated into PRP, PRF, or control groups. The first molars on the right and left sides of the mandible were banded or bonded with Roth prescription tube. Mandibular teeth Second premolar to the second premolar were bonded using 0.022-inch pre-adjusted edgewise mini diamond brackets with Roth prescription. Immediately after bonding of the brackets, the initial wire used, the wire sequence was 0.014 Cu-Ni followed …

Effect Of Different Polishing Systems On Surface Roughness And Color Stability Of Lithium Disilicate Ceramics, Mahmoud Al Ankily, Fatma Makkeyah

Dentistry

Objective: This study aimed to investigate the effect of two polishing systems on the surface roughness and color stability of lithium disilicate ceramic. Materials and Methods: Forty disc-shaped lithium disilicate samples were constructed and cemented into a cavity prepared onto the labial surface of freshly extracted bovine teeth; The samples were divided into four groups (10 samples per group); C: Control, SS: Scaling only, SE: Scaling followed by polishing using Eve Diapro lithium disilicate polishers, SD: Scaling followed by polishing using Diatech ShapeGuard ceramic polishing plus kit. The surface roughness was measured before scaling, after scaling and finally after the …

Anatomical Analysis Of Inferior Alveolar Nerve Relation To Mandibular Posterior Teeth Using Cone Beam Computed Tomography: A Retrospective Radiographic Analysis Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Introduction: Cone beam computed tomography (CBCT) is reliable in the assessment of structures related to teeth. The assessment of the inferior alveolar neurovascular (IAN) bundle location using CBCT is considered one of its prime uses in different mandibular surgeries. Methodology: Retrospective CBCT data of patients presented to the institute were assessed to measure relations of IAN. Measurements were taken to assess the bone thickness adjacent to IAN, the superior-inferior dimension between the canal and the teeth, and the dimension between the canal and the inferior border of the mandible. Results: Out of the 170 patients the root apices nearest to …

Orofacial Pigmentation In Hemodialysis Patients: A Case Control Study, Asmaa Ras, Eman Khalil, Radwa Hussein, Nevine Kheir El Din

Dentistry

ABSTRACT Introduction: Orofacial pigmented lesions are one of the most significant changes that present in patients with end-stage renal disease (ESRD), reflecting a wide range of clinical entities ranging from physiologic changes to signs of systemic disorders and even cancers. The research on oral pigmentations is limited, so it is important to pay close attention to this topic. The majority of original publications is either focused on a single lesion or are narrative reports with limited demographic information. As a result, the current study’s goal was to determine the incidence of orofacial pigmentation in ESRD patients on hemodialysis in a …

Financial Impact Of Covid-19 Pandemic On Endodontic Clinics In Egypt: A Questionnaire-Based Report, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Objective: To evaluate the financial impact of the COVID-19 pandemic on endodontic clinics in Egypt. Methods: Two hundred Egyptian endodontists holding a minimum of a master's degree were invited to participate in an online survey in March 2021. Participants accessed the survey link shared on the social media group of the Egyptian Society of Endodontology. Participants read and signed an electronic informed consent before participating in this study. The questionnaire was designed exclusively by the authors. A draft was pilot tested on a sample of 15 endodontic masters' students at The British University in Egypt. Suggestions and comments to improve …

A Rat Experimental Model For Investigation Of The Effect Of Diabetes On Submandibular Salivary Glands Treated With Epidermal Growth Factor, Mahmoud Bakr, Mohamed Shamel, Sara Abdelwahed, Mahmoud Al Ankily

Dentistry

BACKGROUND: Despite the plethora of research around the negative effects of diabetes on different body organs, this topic still attracts a lot of attention to find potential remedies that could counteract or reverse the damaging effect of diabetes.AIM: In this study, we developed a reliable experimental rat model that can be used for the investigation of the ability of epidermal growth factor (EFG) in restoring the normal architecture of oral tissues after being damaged by diabetes.METHODS: Eighty adult male albino rats (average weight ±220 gm) were used in the current study. Twenty rats served as control and received no treatment. …

The Impact Of Composition, Core Metal Mass And Phase Transformation Behaviour On The Dynamic Cyclic Fatigue Of Ni-Ti Files At Different Temperatures, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: To assess impact of elemental composition, core metal mass and phase transformation behaviour on the dynamic cyclic fatigue resistance of three Ni-Ti rotary files at room and body temperatures. Methods: Twenty instruments of each system were tested for dynamic cyclic fatigue resistance in a simulated root canal with a 90° angle of curvature and a 5-mm radius of curvature at room and body temperature. The core metal mass at the fractured surface of each instrument was calculated by Image J software analysis of SEM images. The energy dispersive X-ray analysis was used to assess file composition. Scanning calorimetry was …

The Antibacterial Effect And The Incidence Of Post-Operative Pain After The Application Of Nano-Based Intracanal Medications During Endodontic Retreatment: A Randomized Controlled Clinical Trial, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Objective: This clinical trial aimed to evaluate the effect of nano-silver and nano-calcium hydroxide intracanal medicaments (ICM) during retreatment regarding their antibacterial effect and their effect on post-operative pain and flare-ups. Materials and methods: Sixty-nine patients scheduled for endodontic retreatment were included in this randomized clinical trial and randomly allocated to 3 equal groups (n = 23) according to the type of ICM used. The first microbial sampling (S1) representing the original microbiota was obtained after the removal of the old canal filling. After chemo-mechanical debridement, another sample (S2) was obtained representing the microbial state before ICM application. Patients were …

The Effect Of Silver Versus Titanium Dioxide Nanoparticles On Poly Methylmethacrylate Denture Base Material, Dina Mohamed Moustafa, Yasmine Galaleldin Thabet, Sara Fikry El-Shafei

Dentistry

Three groups of heat cured acrylic resin specimens were prepared; the first was Group C made of conventional heat cured acrylic resin, the second group was Group Ag where the acrylic resin specimens were incorporated with 5% Silver nanoparticles, and the third group Ti had its specimens incorporated with 5% Titanium oxide nanoparticles. The specimens were tested for microbial colonization using direct culture and serial dilution methods. The specimens were then further tested for surface roughness.

Accuracy And Repeatability Of Different Intraoral Instruments On Shade Determination Compared To Visual Shade Selection, Omar Elsergany

Dentistry

Objective: To evaluate the accuracy and repeatability of intraoral instruments used for shade determination compared to visual shade selection (VSS). Materials and Methods: A total of 20 subjects and 10 observers, balanced by gender, participated in the study. Observers performed VSS of the upper right central incisor from each subject. Instrumental shade determination of the same teeth was performed using a spectrophotometer (Easyshade V) and intraoral scanners (CEREC Omnicam, Primescan, Trios 3 and Trios 4). Vita Classical shade nomenclature was used to record the shade designation for all instruments and VSS. The accuracy of the instruments was determined by comparing …

The Frequency Of Periodontitis In End-Stage Renal Disease On Hemodialysis In A Sample Of Egyptian Population: Multi-Center Clinical Cross-Sectional Study, Asmaa Ras, Enji A. Ahmed, Radwa Hussein, Eman Khalil

Dentistry

Abstract Background: There is a general assumption that periodontal disease is highly prevalent among patients with chronic renal failure undergoing hemodialysis. The aim of the study to estimate the frequency of periodontitis in patients on hemodialysis among a sample of the Egyptian population, as well as the correlation between different clinical parameters of periodontal status with serum creatinine and blood urea. This may rule out the bidirectional relation‑ ship between periodontitis and renal failure in patients on hemodialysis. Methods: The study was conducted on 263 hemodialysis patients (165 males and 98 females) at three dialysis cent‑ ers in Benha Governorate, …

The Frequency Of Periodontitis In End‑Stage Renal Disease On Hemodialysis In A Sample Of Egyptian Population: Multi‑Center Clinical Cross‑Sectional Study, Enji Ahmed Mahmoud, Asmaa Abobakr, Eman Khalil, Radwa Raghib

Dentistry

Background: There is a general assumption that periodontal disease is highly prevalent among patients with chronic renal failure undergoing hemodialysis. The aim of the study to estimate the frequency of periodontitis in patients on hemodialysis among a sample of the Egyptian population, as well as the correlation between different clinical parameters of periodontal status with serum creatinine and blood urea. This may rule out the bidirectional relationship between periodontitis and renal failure in patients on hemodialysis. Methods: The study was conducted on 263 hemodialysis patients (165 males and 98 females) at three dialysis centers in Benha Governorate, Egypt (Benha Hospital, …

In Vitro Comparative Sem Analysis Of Nano-Hydroxyapatite Toothpaste And Diode Laser: Evaluation Of Efficacy Of Dentinal Tubular Occlusion, Mohamed Shamel, Sara Elbanna

Dentistry

Introduction Dentin hypersensitivity (DH) is a very common problem that faces many patients and maintaining treatments with a long term effectiveness remains a challenge. Based on hydrodynamic theory, the main approach of overcoming DH are tubular occlusion.

Objectives The aim of this study was to discover the efficacy of diode laser alone and in combination with a desensitizing toothpaste containing nano-hydroxyapatite (nHap) to evaluate dentinal tubule occlusion after acid challenge under scanning electron microscope (SEM).

Material and methods Forty dentin discs were divided into 4 groups: group 1, control; group 2, dentin disc treated with nHap toothpaste for one week; …

Clinical Effectiveness Of High Definition Fluorescence Camera In Detection Of Initial Occlusal Caries, Mohamed Salama, Olfat Hassanein, Omar Shaalan, Asmaa Yassen

Dentistry

Background: Although visual inspection is the preferred route in everyday clinical practise for detecting early caries lesions, novel technologies like light fluorescence-based devices (Vista Proof iX HD smart) have been developed to enhance early caries detection. Material and Methods: Occlusal surface of 45 molar and 49 premolar teeth from 34 adult participants who fulfilled the eligibility criteria were examined by two observers using three diagnostic methods. Examination was performed visually using the International Caries Detection and Assessment System (ICDAS-II) followed by Vista Proof. Fissurotomy was applied for histological validation. Intra- and inter-observer agreement were measured for ICDAS-II and light-induced fluorescence …

Influence Of Different Combinations Of Cad-Cam Crown And Customized Abutment Materials On The Force Absorption Capacity In Implant Supported Restorations – In Vitro Study, Ahmed Sabet

Dentistry

Objectives: To evaluate the force absorption capacity of implant supported restorations utilizing different CAD-CAM materials for the fabrication of crowns and customized abutments. Methods: 80 titanium inserts were scanned to design customized abutments and crowns. The specimens were divided into four groups (n = 20/material): (Z): zirconia, (P): PEEK, (V): VITA Enamic, and (E): IPS e.max. Each group was subdivided into two subgroups according to customized abutment material: (Z) zirconia, and (P) for PEEK. For the assessment of force absorption, all specimens were loaded in a universal testing machine, applied loads curves were collected from the machine’s software, and resulting …