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- Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry) (259)
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- Caries; minimal invasive dentistry; smartprep burs (2)
- Cariogenic Microflora; Egyptian children; Licorice extract (2)
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- Hanau Equation; Gothic arch tracer; cone beam CT (2)
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- Implant over-denture; Zirconia abutment; Titanium abutment (2)
- Implants; Overdentures; PEEK; Metal frameworks (2)
- Indirect pulp treatment; primary molars; Dycal; Vitrebond; TheraCal LC (2)
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- Intraoral scanner; Extraoral scanner; Marginal gap distance (2)
Articles 571 - 584 of 584
Full-Text Articles in Medicine and Health Sciences
Evaluation Of Caries And Periodontal Status In A Group Of Diabetic Egyptian Children, Noura Mohammed, Osama El-Shall, Magda El-Malt, Noura Badawy
Evaluation Of Caries And Periodontal Status In A Group Of Diabetic Egyptian Children, Noura Mohammed, Osama El-Shall, Magda El-Malt, Noura Badawy
Al-Azhar Journal of Dentistry
The present study was carried out to evaluate the dental and periodontal status in a group of Insulin dependent Egyptian children and this was accomplished clinically and microbiologically. One hundred diabetic children represented by group 1 with age range 6-14 years who had selected from out-patient clinic of Abo EL-Rish , Endocrine department of faculty of medicine, Cairo university. And ten healthy chidren represented by group 2 with the same age range, were selected from those who referred to the out-patient Pediatric clinic of faculty of dental medicine, Al-Alzhar University,Girls branch. In this study dental examination was done by using …
Effect Of Flexible Denture Base On Retention Of Complete Denture, Dina Hssan, Mohamed Sanad, Shereen Kabeel
Effect Of Flexible Denture Base On Retention Of Complete Denture, Dina Hssan, Mohamed Sanad, Shereen Kabeel
Al-Azhar Journal of Dentistry
Aim of the study: to evaluate the effect of flexible denture base materials on retention of complete denture.Material & methods: Seven completely edentulous patients with age ranged between 45 and 55 years were selected for this study. Complete conventional heat cured acrylic resin dentures were constructed for all patients .The retention was evaluated after one and three months from dentures delivery. Another set of flexible denture base was constructed for all patients then the retention were evaluated after one and three months from denture delivery.Results: The result of the study revealed that there were statistically significant differences in the retention …
Influence Of Adhesive On Shear Bond Strength Between Denture Base Materials And Self-Cured Silicon Soft Liner, Mohamed Ebrahim, Mohamed Ahmed, Mostafa Fayad
Influence Of Adhesive On Shear Bond Strength Between Denture Base Materials And Self-Cured Silicon Soft Liner, Mohamed Ebrahim, Mohamed Ahmed, Mostafa Fayad
Al-Azhar Journal of Dentistry
Background: Soft lining materials play an important role in modern prosthodontics because of their capability of restoring health of inflamed and distorted mucosa. Gradual changes of oral tissues require that complete or partial dentures be relined to improve their adaptation to the supporting tissue. This study aimed to evaluate the shear bond strength (SBS) of heat cured acrylic and injection-molded ValplastTM denture base materials to silicone self-cure soft lining materials, with and without adhesive, after storage in two different times in artificial saliva. Materials and Methods: 40 rectangularspecimens were prepared from two types of self-cured silicone soft lining material,one with …
Effect Of Laser Treatment, Self-Adhesive Resin Cement Brand And Thermocycling On Push Out Bond Strength Of Fiber Reinforced Post, Mariem Abu El-Nour, Eman Essam, Mohsen Nour Eldeen, Ahmed Abbas
Effect Of Laser Treatment, Self-Adhesive Resin Cement Brand And Thermocycling On Push Out Bond Strength Of Fiber Reinforced Post, Mariem Abu El-Nour, Eman Essam, Mohsen Nour Eldeen, Ahmed Abbas
Al-Azhar Journal of Dentistry
The interface between the adhesive resin and fiber posts has an important role in their performance. However, It was found that the most frequent cause of their failure is debonding at the adhesive resin-dentin interface. The aim of the present study was to evaluate the effect of laser treatment: Erbium, Diode or no treatment; and two brandsof self-adhesive resin cement: hydrophobic (Smartcem2) and conventional (Breeze); in addition to the effect of thermocycling on push out bond strength of Glassix fiber- reinforced composite post. A total of ninety- six freshly extracted natural human teeth were equally divided into three main groups …
Evaluation Of The Effect Of Bovine Bone Graft On The Preservation Of Buccal Plate Of Extracted Socket, Radwa Helal, Shadia Elsayed, Fatma Mohamed, Hoda Saleh, Fatma Khalifa
Evaluation Of The Effect Of Bovine Bone Graft On The Preservation Of Buccal Plate Of Extracted Socket, Radwa Helal, Shadia Elsayed, Fatma Mohamed, Hoda Saleh, Fatma Khalifa
Al-Azhar Journal of Dentistry
In order to preserve the original ridge dimensions following tooth extraction and promote bone regeneration of the residual alveolar socket, various bone grafts and substitutes were used. Among these grafting materials, bovine bone xenograft was used in order to promote bone regeneration. The aim of this study was to evaluate the effectof bovine bone graft on the preservation of buccal plate of bone of extracted socket.Twelve patients with non-restorable maxillary tooth or remaining root were included in this study. They were divided equally into two groups. Group A: augmentation with bovine xenograft was performed after extraction. Group B: Extraction was …
Effect Of Zirconium Oxide Nano-Fillers Addition On Mechanical Properties Of Heat-Polymerized Acrylic Resin, Mohamed Ahmed, Mohamed Ebrahim
Effect Of Zirconium Oxide Nano-Fillers Addition On Mechanical Properties Of Heat-Polymerized Acrylic Resin, Mohamed Ahmed, Mohamed Ebrahim
Al-Azhar Journal of Dentistry
Purpose: The mechanical strength of polymethyl methacrylate (PMMA) remains far from ideal for maintaining the longevity of denture. The purpose of this study was to evaluate the effect of Zirconium oxide (ZrO2) nanofillers powder with different concentration (1.5, 3, 5 and 7%) on the flexural strength, fracture toughness, and hardness of heat-polymerized acrylic resin. Materials and methods: Zirconium oxide powder with different concentrations (1.5, 3, 5 and 7%) were incorporated into heatcure acrylic resin (PMMA) and processed with optimal condition (2.5:1 Powder/monomerratio, conventional packing method and water bath curing for 2 hours at 95˚C) to fabricate test specimens of PMMA …
Effect Of Low-Dose Doxycycline And Bisphosphonate On Osteoprotegrin Expression In Ligature Induced Periodontitis In Diabetic Rats (An Experimental Study), Zeinab Shalaby, Naglaa Shawki, Marwa El Sheikh, Mai Shafik
Effect Of Low-Dose Doxycycline And Bisphosphonate On Osteoprotegrin Expression In Ligature Induced Periodontitis In Diabetic Rats (An Experimental Study), Zeinab Shalaby, Naglaa Shawki, Marwa El Sheikh, Mai Shafik
Al-Azhar Journal of Dentistry
Objective: To evaluate the effect of mono and combined therapy of low dose doxycycline (LDD) and Bisphosphonate (BPs) on ligature-induced periodontitis in Diabetic rats by immunohistochemical analysis of the expression of osteoprotegerin (OPG) and by immunohistomorphometric analysis. Methods: Fifty adult Wistar rats were divided into five study groups as follows: 1) group 1 = diabetes control; 2) group 2 = diabetes + periodontitis; 3) group 3 = diabetes + periodontitis + LDD; 4) group 4 = diabetes + periodontitis + clodronate; and 5) group 5 = diabetes + periodontitis + LDD + clodronate.LDD and clodronate were given as a single …
The Effect Of Hinge Axis Position On Mandibular Movements, Emad Salam
The Effect Of Hinge Axis Position On Mandibular Movements, Emad Salam
Al-Azhar Journal of Dentistry
The objective of this study was to evaluate the effect of an arbitrary and true hinge axis on the Bennett shift and the horizontal condylar path inclination. Ten completely edentulous subjects were selected for this study. For each subject, true and arbitrary hinge axis positions were located. Whip Mix Quick Set Recorder was used to measure the Bennett shift and the horizontal condylar path inclination. The Bennett shift and condylar path inclinations were recorded two times, first using the arbitrary and secondary using the kinematic hinge axis as the starting point for recording. The resultof this study showed that there …
Marginal Accuracy And Fracture Strength Of Implant Supported Zirconia Copings Constructed Using Cad/Cam And Mad/Mam Techniques, Ayat Montaser, Atef Ahmed, Mona Mandour
Marginal Accuracy And Fracture Strength Of Implant Supported Zirconia Copings Constructed Using Cad/Cam And Mad/Mam Techniques, Ayat Montaser, Atef Ahmed, Mona Mandour
Al-Azhar Journal of Dentistry
Purpose. The purpose of this study was to evaluate the marginal accuracy and fracture strength of single implant supported zirconia copings constructed using two different techniques; CAD/CAM and MAD/ MAM process. Materials and Methods: twenty titanium dummy implants with their respective zirconia abutments representing mandibularfirst premolar were embedded in epoxy resin blocks. Samples were divided into two groups according to the milling technique used for constructing zirconia copings: Group (I), (n=10): Zirconia copings milled using CAD/CAM system. Group (II), (n=10): Zirconia copings milled using MAD/MAM system. All samples were subjected to a fatigue procedurecomposed of 20,000 cycles of cyclic loading …
Effect Of Different Doses Of Power Horse Energy Drink On Submandibular Salivary Glands Of Albino Rats, Abeer Mohamed, Mona Farid, Heba Adawy, Marwa El-Shiekh
Effect Of Different Doses Of Power Horse Energy Drink On Submandibular Salivary Glands Of Albino Rats, Abeer Mohamed, Mona Farid, Heba Adawy, Marwa El-Shiekh
Al-Azhar Journal of Dentistry
Objective: The aim of this study is to investigate histological the effect of power horse energy drink intake with different doses on the submandibular salivary glands of albino rats. The possible modulated recovery of expected adverse effects from the different doses of the taken power horse energy drink. Materials and Methods: Sixty five adult male albino rats (weighing 180-200 grams) were divided equally into seven groups. Group I (control), group (IIA,IIIA&IVA) which received a daily different dose power horse energy drink using an oro-pharyngeal metallic curved tube for 8 weeks then sacrified and group(IIB,IIIB&IVB)which left alive with stoppage of beverage …
Impact Of Chitosan As Chelating Agent On Microhardness And Mineral Content Of Intraradicular Dentin, Hagar Bastawy, Rania Ezzat
Impact Of Chitosan As Chelating Agent On Microhardness And Mineral Content Of Intraradicular Dentin, Hagar Bastawy, Rania Ezzat
Al-Azhar Journal of Dentistry
Aim: This study was designed to evaluate the effects of 0.2% chitosan, 2% chitosan and 17% EDTA chelating agents on the microhardness and mineral content of human root canal dentin. Materials and Methods: Sixty extracted single-rooted human teeth were longitudinally sectioned into 120 segments. The specimens were randomly divided into four groups according to the chelating agent used; G1: 0.2% chitosan, G2: 2% chitosan, G3: 17% EDTA and G4: saline (control group). Dentin microhardness was measured in a total of 80 specimens using Vickers diamond indenter with 300 g loadand a dwell time of 20 s. A total volume of …
Evaluation Of The Effect Of Dairy Products On Streptococci And Lactobacilli In Saliva On Group Of Egyptian Children, Yomna Morad, Samy El-Bayoumy, Mohammed Mostafa
Evaluation Of The Effect Of Dairy Products On Streptococci And Lactobacilli In Saliva On Group Of Egyptian Children, Yomna Morad, Samy El-Bayoumy, Mohammed Mostafa
Al-Azhar Journal of Dentistry
Objective: to evaluate the effect of dairy products on streptococcus mutans (SM) and lactobacilli (LB) in saliva on group of Egyptian children. Material and Methods: One hundred and twenty Egyptian children from both sexes were included inthis study, their age ranged from 4-12 years old. These children were equally divided into 3 groups, each group consisted of 40 children. First group (group A) was instructed to drink plain cow’s milk, second group (group B) was instructed to drink milk plus sugar and third group (group C) was instructed to drink milk plus honey. Three saliva samples were collected from each …
Masticatory Efficiency Evaluation In Implant Retained Complete Overdenture With Different Occlusal Schemes, Mostafa Fayad, Ihab Mahmoud, Mohamed Ismaiel, Nehad Harby, Mohammed Quassem, Hassan Sakr
Masticatory Efficiency Evaluation In Implant Retained Complete Overdenture With Different Occlusal Schemes, Mostafa Fayad, Ihab Mahmoud, Mohamed Ismaiel, Nehad Harby, Mohammed Quassem, Hassan Sakr
Al-Azhar Journal of Dentistry
Objective: This study was conducted to evaluate the masticatory efficiency in immediately loaded implant retained mandibular complete over denture with two different occlusal schemes namely opposing conventional maxillary complete denture. Patients and Methods: Fourteen completely edentulous patients with age ranged from 51-61 years were selected from outpatient clinic of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University. One stage octa titanium implants with 3.75mm diameter and 14mm length were used. All Patients sharing in this study receiveimmediately loaded implant reteined mandibular overdenture. They were randomly divided into two equal groups (7 patients in each), the first group had the artificial …
Effect Of Abutment Total Occlusal Convergence And Cement Type On Retention Of Cement Retained Implant-Supported Restorations, Abeer Elhiatmy, Osama Abdelghany, Rania Amin
Effect Of Abutment Total Occlusal Convergence And Cement Type On Retention Of Cement Retained Implant-Supported Restorations, Abeer Elhiatmy, Osama Abdelghany, Rania Amin
Al-Azhar Journal of Dentistry
The purpose of this study was to evaluate the effect of abutment total occlusal convergence (TOC), and cement type on the uniaxial tensile resistance to dislodgment of cement-retained, implant-supported metal copings. Six titanium implantabutmnets were constructed using CAD-CAM technology. Two abutments have TOC 6˚, Two abutments have TOC 8˚, and Two abutments have TOC 12˚. Identical copings were cast to fit each abutment with a loop incorporated that was engaged by the testing unit. The copings were cemented using either a resin-modified glass ionomer (RMGI) (Rely™ X U 200 Automix) or self adhesive resin cement that contained a 10 Methacryloyloxydecyl …