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Dentistry

Faculty of Dental Medicine (Girls' branch)

2020

Keyword

Articles 61 - 80 of 80

Full-Text Articles in Medicine and Health Sciences

Minimal Invasive Computer Assisted Dental Reconstruction Of Atrophic Maxilla By Zygomatic Implants Combined With Conventional Implants, Ahmed Basyoni, Susan Hassan, Nahed Adly Jan 2020

Minimal Invasive Computer Assisted Dental Reconstruction Of Atrophic Maxilla By Zygomatic Implants Combined With Conventional Implants, Ahmed Basyoni, Susan Hassan, Nahed Adly

Al-Azhar Journal of Dentistry

Purpose: The aim of the study was to evaluate and apply a minimal invasive approach for reconstruction of atrophic maxilla using computer-guided implant surgery by zygomatic implants combined with conventional implants. Material and methods: 10 patients with severely atrophic edentulous upper arch were included in this study, each patient had 2 conventional implants placed in the anterior maxilla, and 2 zygomatic implants on either sides placed in the zygomatic bone. In all patients a computer guided approach using a computer guided stent was used for drilling the conventional and zygomatic implants. All patients followed a clinical and radiographic follow up …


Effect Of Two Types Of Surface Treatment Of Dental Implants Retaining Mandibular Complete Overdenture On Bone Density Changes, Maie Khalil, Mohamed Sanad, Ghada Ahmed, Asmaa Elboraey Jan 2020

Effect Of Two Types Of Surface Treatment Of Dental Implants Retaining Mandibular Complete Overdenture On Bone Density Changes, Maie Khalil, Mohamed Sanad, Ghada Ahmed, Asmaa Elboraey

Al-Azhar Journal of Dentistry

The aim of the study: was to evaluate the influence of the surface treatment of implant retained mandibular overdenture on peri-implant bone density.Resorbable Blast Media (RBM) implant surface treatment and acidetched implant surface treatment was used.Materials and Methods: Ten completely edentulous male patients wererehabilitated by mandibular overdenture retained by two dental implantsin the interforaminal region, the one on the right side was acid etched andthe left side was with resorbable blast media (RBM). Peri-implant bonedensity was assessed with cone beam computed tomography at the timeof implant loading, six months and twelve months after denture insertion.Results: There was no significant difference …


A Comparative Study Between Telescopic And Ball And Socket Attachments Used For Maxillary Implant Supported Single Dentures, Sherihan Salem, Amany Abd El-Fattah, Shereen Kabeel, Eman Ibraheem, Mohamed El Zawahry Jan 2020

A Comparative Study Between Telescopic And Ball And Socket Attachments Used For Maxillary Implant Supported Single Dentures, Sherihan Salem, Amany Abd El-Fattah, Shereen Kabeel, Eman Ibraheem, Mohamed El Zawahry

Al-Azhar Journal of Dentistry

Purpose: This study was conducted to compare between maxillary implant-supported overdentures retained by telescopic and ball and socket regarding retention. Material and Methods: seven male patients had completely edentulous maxilla free from any systemic disease that might affect bone metabolism was selected to participate in this study. Each patient received four dental implants in the edentulous maxilla using computer guided surgical stent. Implants had enough antero-posterior spread so that load can be distributed equally. Once the implant osseointegration appears to be satisfactory, the maxillary four implants were loaded with two different attachments as follow; Group I: All patients received maxillary …


Evaluation Of Intraradicular Surface Roughness Following Final Irrigation By Apple Vinegar And Its Correlation With Resin Sealer Bond Strength, Aalaa Ali, Mervat Fawzy, Hagar Bastawy Jan 2020

Evaluation Of Intraradicular Surface Roughness Following Final Irrigation By Apple Vinegar And Its Correlation With Resin Sealer Bond Strength, Aalaa Ali, Mervat Fawzy, Hagar Bastawy

Al-Azhar Journal of Dentistry

• Purpose: evaluation the surface roughness of root canal surface and its correlation with Resin Sealer Bond Strength following final irrigation by apple vinegar. Materials and Methods: Fifty extracted lower premolars were prepared then the samples were equally distributed into 2 main groups . Group I: Apple vinegar , Group II: 17 % (EDTA), Control group : sterile saline. Each group was further distributed into .Subgroup A: For surface roughness evaluation(Ra). Subgroup B: For push out bond strength evaluation. Surface roughness was evaluated using digital microscope that is one of non contact optical microscope. The push out test was carried …


Comparison Of The Shear Bond Strength Of Self-Etch Adhesive Systems On Pre-Etched And Non-Etched Enamel Surfaces (An In-Vitro Study), Ahmed Abd El-Ghany Jan 2020

Comparison Of The Shear Bond Strength Of Self-Etch Adhesive Systems On Pre-Etched And Non-Etched Enamel Surfaces (An In-Vitro Study), Ahmed Abd El-Ghany

Al-Azhar Journal of Dentistry

Abstract: In order to simplify bonding procedures, self-etching adhesive systems have been implemented. It has less acidity than phosphoric acid, so there is a doubt whether these systems are strong enough for enamel bonding. This study is aimed at comparing the shear bond strength of various adhesive systems for pre-etched and non-etched enamel. This study used 60 human molars. Analysis of variance (ANOVA) has been used to assess whether the shear bond strength between the various groups have been significantly differing. The post hoc test of tukey’s had been evaluated. The p value was


Stem Cells And Their Potential Effect On Irradiated Submandibular Salivary Glands In Mice, Seham Hallool, Mona Farid, Samah Mehanny, Hanan Abdel Hamid Jan 2020

Stem Cells And Their Potential Effect On Irradiated Submandibular Salivary Glands In Mice, Seham Hallool, Mona Farid, Samah Mehanny, Hanan Abdel Hamid

Al-Azhar Journal of Dentistry

Purpose: the objective of the present study was to evaluate the effect of BM-MSCs on irradiated submandibular salivary glands in mice and to determine at which stage post-irradiation the cells should be transplanted. Materials and methods: 58 adult male mice were used, 10 for preparation of PKH-26-labeled BM-MSCs and the remaining 48 mice were divided into: control group (GӀ) consisted of 6 mice without radiation and experimental groups consisted of 42 irradiated mice irradiated with a single dose of 15Gy. They were randomly divided into three groups: GӀӀ (+ve control): 18 irradiated not treated mice and two treated groups each …


Evaluation Of Resistin Levels In Gingival Crevicular Fluid Of Patients With Periodontitis And Type 2 Diabetes Mellitus After Non-Surgical Periodontal Therapy And Subantimicrobial Dosage Of Doxycycline, Reem Abdu Shehab, Eatemad Shoriebah, Mai Mansour Jan 2020

Evaluation Of Resistin Levels In Gingival Crevicular Fluid Of Patients With Periodontitis And Type 2 Diabetes Mellitus After Non-Surgical Periodontal Therapy And Subantimicrobial Dosage Of Doxycycline, Reem Abdu Shehab, Eatemad Shoriebah, Mai Mansour

Al-Azhar Journal of Dentistry

Aim:This study was designed to evaluate the resistin levels in GCF of patients with periodontitis and type 2 diabetes mellitus(T2DM) after non-surgical periodontal therapy and subantimicrobial dosage doxycycline(SDD).Subjects & Methods:Thirty periodontal sites within 24 patients with age ranged between(24-51) years old were selected for this study.Total of 30 periodontal sites were randomly divided into three groups;each group included ten periodontal sites:(group I):systemically healthy periodontitis patients who were received scaling and root planning (SRP),(group II):periodontitis patients with T2DM who were received SRP, and(group III):periodontitis patients with T2DM who were received SRP and SDD 20mg twice/day. All patients were examined with clinical …


Influence Of Coronal Pre-Flaring On The Apical Transportation And Dentinal Damage After Preparation Of Curved Root Canals, Lamia’A Mohammed, Wael Kamel, Mohsen Nour El Din Jan 2020

Influence Of Coronal Pre-Flaring On The Apical Transportation And Dentinal Damage After Preparation Of Curved Root Canals, Lamia’A Mohammed, Wael Kamel, Mohsen Nour El Din

Al-Azhar Journal of Dentistry

Aim: This study was designed to evaluate the influence of pre-flaring on the apical transportation and dentinal damage after preparation of curved root canals using EndoStar (ES5), OneShape (OS) and ProTaper Next (PTN) systems. Material and Methods: Hundred and twenty human mandibular first molars were selected. Pre-operative imaging by CBCT was done for measurement of apical transportation of mesio-buccal root canals then saved. The specimens were grouped into: Group I: Instrumented by ES5 files; Group II: by OS single file; and Group III: by PTN files. Each group was subdivided into subgroups: A: Instrumented without pre-flaring; and B: pre-flared before …


Freshly Isolated Versus Culture Expanded Bone Marrow Stem Cells In Healing Of Bony Defects In Dogs, Rasha Al-Dahshan, Hatem Al-Ahmady, Ashraf Abu-Seida Jan 2020

Freshly Isolated Versus Culture Expanded Bone Marrow Stem Cells In Healing Of Bony Defects In Dogs, Rasha Al-Dahshan, Hatem Al-Ahmady, Ashraf Abu-Seida

Al-Azhar Journal of Dentistry

Purpose this study was conducted between 2011 and 2017 at the faculty of Veterinary Medicine Cairo University and aimed to histologically and radiologically compare the efficiency of freshly isolated bone marrow mesenchymal stem cells (F-BMMSC) versus culture expanded bone marrow mesenchymal stem cells (E-BMMSC) when added to the mixture of autologous platelet rich fibrin (PRF), collagen with nano-hydroxyapatite in healing of critical bony mandibular defects in mandibular site in dogs. Material and methods 12 healthy adult Mongrel dogs were used in this study and bilateral rectangular full thickness mandibular inferior border critical bone defects (15X10 mm) just before the angle …


Bio-Modulation Effect Of Low Intensity Laser As An Adjunct To Mechanical Debridement Of Periodontitis, Reham Kabeel, Hamdy Nasaar, Naglaa Elkilani, Naglaa Elwakeel Jan 2020

Bio-Modulation Effect Of Low Intensity Laser As An Adjunct To Mechanical Debridement Of Periodontitis, Reham Kabeel, Hamdy Nasaar, Naglaa Elkilani, Naglaa Elwakeel

Al-Azhar Journal of Dentistry

Purpose: The present study was conducted to evaluate the clinical, osteocalcine biomarker and radiographic effect of biomodulaion effect of low intensity laser as an adjunct to mechanical debridement in the treatment of chronic periodontitis.Material and methods: This study was conducted on twelve (24) healthy patients that were randomly divided into two groups: Group A (control group) twelve (12) patients with one stage mechanical debridement without the use of the low intensity laser as an adjunctive treatment; Group B (Test group) twelve (12) patients with three stage treatment high level laser decontamination, mechanical debridement with the use of bio modulation six …


Flapless Ridge Splitting Technique With Platelet Rich Fibrin For Immediate Implant Placement In Atrophic Alveolar Ridge, Reham Abdelsalam, Susan Hassan, Nahed Abdelmoniem Jan 2020

Flapless Ridge Splitting Technique With Platelet Rich Fibrin For Immediate Implant Placement In Atrophic Alveolar Ridge, Reham Abdelsalam, Susan Hassan, Nahed Abdelmoniem

Al-Azhar Journal of Dentistry

AbstractPurpose: this study was conducted between 2016 and 2019 at the faculty of dentistry Al-Azhar University Girls branch aimed to improve alveolar ridge dimensions for immediate Implant placement in cases with atrophic alveolar ridge. Material and methods: six patients fulfilling the inclusion criteria were selected from the out-patient clinic of Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Al-Azhar University (Girl's Branch). Fabrication of two computer guided stents used to guide flapless ridge splitting using piezoelectric device . After ridge splitting, all patients had simultaneous implant and PRF placement followed by clinically and radiographically over a period of 6 months. …


Fluoride Versus Bioactive Glass Effect On Enamel After Cold Light Activated Bleaching And Chemical Bleaching (Sem Study), Amina Ewais, Maha Niazy, Doaa Elsharkawy Jan 2020

Fluoride Versus Bioactive Glass Effect On Enamel After Cold Light Activated Bleaching And Chemical Bleaching (Sem Study), Amina Ewais, Maha Niazy, Doaa Elsharkawy

Al-Azhar Journal of Dentistry

Objectives: This study was designed to evaluate and compare Fluoride versus Bioactive Glass effect on Enamel after Cold Light Activated Bleaching and Chemical Bleaching. Materials and Methods: Forty specimens obtained from ten sound bovine central incisors were numbered from 1 to 40 and subjected to EDAX &SEM analysis. Specimens were divided into two main groups, the first group was subjected to chemical bleaching using 35% hydrogen peroxide gel and the second group was subjected to cold light activated bleaching using 25% hydrogen peroxide gel. After bleaching, EDAX & SEM analysis for all specimens was done. Each main group was subdivided …


Optical Properties And Flexural Strength Of Artificially Aged Tetragonal/Cubic Ultra-Translucent Zirconia, Dina Ahmed, Mona Mandour, Zainab El-Sharkawy Jan 2020

Optical Properties And Flexural Strength Of Artificially Aged Tetragonal/Cubic Ultra-Translucent Zirconia, Dina Ahmed, Mona Mandour, Zainab El-Sharkawy

Al-Azhar Journal of Dentistry

Purpose: The aim of the present study was to evaluate the effect of artificial aging on the optical properties and flexural strength of ultra-translucent tetragonal/cubic zirconia. Materials and Methods: A total of 30 (N=30) ultra-translucent cubic zirconia discs (DD cube X2) were fabricated. Samples were divided into 3 equal groups (n=10) according to the aging protocol followed including Group (1): (control), samples were not subjected to hydrothermal aging protocol, (n=10), Group (2): Samples were subjected to one-hour hydrothermal aging protocol, (n=10), Group (3): Samples were subjected to 3 hours hydrothermal aging protocol, (n=10). Samples of each group were subjected to …


Comparative Evaluation Of The Antibacterial Effect Of Triple Antibiotic Paste Vesus Propolis As Intracanal Medicament, Sara Abd El-Majeed, Mohsen Nour El-Deen, Mohamed Rokaya, Mohamed Sherif Jan 2020

Comparative Evaluation Of The Antibacterial Effect Of Triple Antibiotic Paste Vesus Propolis As Intracanal Medicament, Sara Abd El-Majeed, Mohsen Nour El-Deen, Mohamed Rokaya, Mohamed Sherif

Al-Azhar Journal of Dentistry

Purpose: This study aimed to compare between Propolis and Triple Antibiotic Paste as root canal medicaments in eradication of Enterococcus faecalis. Material and Methods: for this study, 60 extracted human teeth were used. After their decapitation, they were initially instrumented to reach 20 K-file, later they were separated into 2 sets according to the medicament used; Group A1: Triple antibiotic paste Group A2: Propolis paste (30 specimens in each group). After sterilization of all samples inoculation was performed with Enterococcus faecalis (ATCC29212) over a period of 21 days. Preparation of all samples was done using Step- back technique to reach …


The Effect Of Different Occlusal Concepts On Masticatory Efficiency In Implant Supported Mandibular Over-Dentures, Hager El-Sadany, Amany Abd El-Fattah, Nesreen El-Mahrouky, Shereen Kabeel Jan 2020

The Effect Of Different Occlusal Concepts On Masticatory Efficiency In Implant Supported Mandibular Over-Dentures, Hager El-Sadany, Amany Abd El-Fattah, Nesreen El-Mahrouky, Shereen Kabeel

Al-Azhar Journal of Dentistry

The purpose of this study was to evaluate the effect of different occlusal concepts which are bilateral balanced occlusion, canine guided occlusion on masticatory efficiency, in implant supported mandibular over denture wearers.Material and methods: ten completely edentulous patients were selected for this study, aged 50 to 60 years old. All patients free from any systematic dieses. The patients were divided into three groups according to the treatment protocol; {GI} All patients wore denture with intra oral adjustment, {GII} five patients wore denture with bilateral balanced occlusion and {GIII} five patients wore denture with canine guided occlusion. All patients were submitted …


Efficacy Of Apple Vinegar As Final Irrigating Solution In Removing Smear Layer Using Xp-Endo Finisher File, Menna Abdelghany, Wael Kamel, Hagar Bastawy Jan 2020

Efficacy Of Apple Vinegar As Final Irrigating Solution In Removing Smear Layer Using Xp-Endo Finisher File, Menna Abdelghany, Wael Kamel, Hagar Bastawy

Al-Azhar Journal of Dentistry

Purpose: This study was assessed the efficacy of Apple vinegar as final irrigating solution in removing smear layer using XP-Endo Finisher File by scanning microscope. Material and Methods: Fifty single rooted lower premolars were selected and prepared using Universal ProTaper rotary files. Samples were divided into two main groups (I,II) regarding the final rinse used (20 samples each) and control group (10 samples): Group I: rinsed with 17% EDTA, Group II: rinsed with Apple vinegar and Control group: irrigated with sterile saline. Each group was subdivided into two subgroups (A,B) regarding the agitation file. Subgroup A: Conventional irrigation, Subgroup B: …


Effect Of Coconut Oil Pulling On Streptococcus Mutans Count In Saliva In Comparison With Chlorhexidine Mouthwash, Sara Ahmed, Mohamed Mostafa, Magda El-Malt Jan 2020

Effect Of Coconut Oil Pulling On Streptococcus Mutans Count In Saliva In Comparison With Chlorhexidine Mouthwash, Sara Ahmed, Mohamed Mostafa, Magda El-Malt

Al-Azhar Journal of Dentistry

ABSTRACTPurpose: The aim of this study was to evaluate the antimicrobial effect of Coconut oil on Streptococcus mutans count in saliva in a group of Egyptian children and Compare its effect with chlorhexidine mouth wash. Materials and Methods: A total of 60 Egyptian children were included in this study their ages ranging from (5-10) years. The children (60) were divided into two groups; each group consists of 30 children (Group A, Group B). Group A (study group) : Coconut oil consisted of thirty child, each participant was instructed to rinse with 10 ml of Coconut oil 3 times per day …


Piezoelectric Device Versus Conventional Rotary Instruments In Implant Site Preparation (Comparative Clinical Study), Hind Sallam, Ghada Khalifa, Fatma Khalifa Jan 2020

Piezoelectric Device Versus Conventional Rotary Instruments In Implant Site Preparation (Comparative Clinical Study), Hind Sallam, Ghada Khalifa, Fatma Khalifa

Al-Azhar Journal of Dentistry

Purpose: This study was designed to evaluate and compare the efficiency of piezoelectric device for implant site preparation clinically and radiographically. Materials and methods: The study included 12 patients divided into two groups. The group A received implants prepared with the conventional drills (CDs), while, group B, the piezoelectric devices (PEDs) were used. The stability of implant was measured, immediately, at 2 months, and 4 months after the implant insertion. Also, the drilling time was recorded. While, the Marginal bone loss (MBL) and Bone mineral density (BMD) were recorded immediately, at 3, and 6 months after implant insertion. Results: Group …


Comparative Evaluation Of Natural Herbal Extracts As Root Canal Irrigation Versus Routine Chemical Root Canal Irrigation, Kholoud Esmail, Wael Kamel, Mohsen Nour El-Dein, Mohamed El Sherif Jan 2020

Comparative Evaluation Of Natural Herbal Extracts As Root Canal Irrigation Versus Routine Chemical Root Canal Irrigation, Kholoud Esmail, Wael Kamel, Mohsen Nour El-Dein, Mohamed El Sherif

Al-Azhar Journal of Dentistry

The aim that initiates this study was to compare and evaluate the antimicrobial efficacy of natural herbal extract (neem and tea tree oil) versus chemical root canal irrigation (sodium hypochlorite and chlorhexidine) with and without agitation system.One hundred freshly extracted intact human single-rooted premolars with totally formed apex, and a unit root canal, checked by radiographs, were obtained from the Department of Oral and Maxillofacial Surgery of, Faculty of Dental Medicine, Al Azhar University, Cairo, Egypt, and other governmental dental clinics. These samples were divided into two main groups: With agitation system EndoVac and without agitation system (B1, B2), each …


Influence Of Coronal Preflaring On Apical Extrusion Of Debris During Root Canal Preparation Using Two Reciprocating Single-File Systems, Yosra Mohamed, Mohammed Khalefa, Hagar Bastawy Jan 2020

Influence Of Coronal Preflaring On Apical Extrusion Of Debris During Root Canal Preparation Using Two Reciprocating Single-File Systems, Yosra Mohamed, Mohammed Khalefa, Hagar Bastawy

Al-Azhar Journal of Dentistry

Purpose: present study designed to evaluate the influence of coronal preflaring on the amount of debris extruded apically during preparation of the root canal using reciprocating systems,Reciproc and WaveOne Gold.Materials and Methods:Sixty mandibular first molars with canal curvature between 25°-35° used and divided into 2 groups(Ι and ΙΙ) according to the method of preparation of the root (30 samples each); Group I: were prepared with coronal preflaring , Group II: were prepared without coronal preflaring. The groups further subdivided into 2 subgroups (A, B) according to the reciprocating file system used (15 samples each); Subgroup A: instrumented using Reciproc , …