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Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)
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Full-Text Articles in Medicine and Health Sciences
Push-Out Bond Strength Of Endoseal Mta And Ah Plus Sealers After Using Apple Vinegar As Final Irrigating Solution, Rana M. Ragab, Wael H. Kamel, Hemat M. Elsheikh
Push-Out Bond Strength Of Endoseal Mta And Ah Plus Sealers After Using Apple Vinegar As Final Irrigating Solution, Rana M. Ragab, Wael H. Kamel, Hemat M. Elsheikh
Al-Azhar Journal of Dentistry
Purpose: The present study was performed to evaluate the bond strength of EndoSeal MTA and AH Plus after using EDTA or apple vinegar as final irrigant. Materials and Methods: Sixty extracted human single rooted teeth were decapitated, instrumented using Universal ProTaper rotary system up to size F4 and divided randomly into two main groups (n=30) according to the solution used as final irrigation; Group I: irrigated with 17% EDTA and Group II : 5 % Apple vinegar, then distributed according to sealer used in obturation with gutta-percha into four subgroups (n=15); subgroup IA (EDTA + AH Plus), subgroup I B …
A Within- Subject Comparison Of Two Reinforcement Materials Used For Single Mandibular Implant Retained Overdentures, Amira O. Alkamel, Heba W. Abozaed, Wael S. Ahmed, Fatma A. El-Waseef
A Within- Subject Comparison Of Two Reinforcement Materials Used For Single Mandibular Implant Retained Overdentures, Amira O. Alkamel, Heba W. Abozaed, Wael S. Ahmed, Fatma A. El-Waseef
Al-Azhar Journal of Dentistry
Purpose: This cross-over study aimed at assessing masticatory efficiency in single-implant mandibular overdentures with different reinforcement materials (CO-Cr and PEEK). Materials and Methods: Eight completely edentulous participants have been delivered conventional complete dentures. One month later; they received a single midline mandibular implant. After three months of osseointegration, each patient received two mandibular overdentures; one was metal reinforced (Group I), and the other was PEEK reinforced (Group II). Masticatory efficiency for both groups (I & II) was carried out. Masticatory efficiency was measured by two colored chewing gums test at time of each overdenture insertion (T0). Thereafter, masticatory efficiency was …
Evaluation Of Occlusal Pressure Pattern And Dimensional Changes Of The Lined Dentures Subjected To Microwave Disinfection Protocol, Sara M. Bahaa, Sara M. Shabaan
Evaluation Of Occlusal Pressure Pattern And Dimensional Changes Of The Lined Dentures Subjected To Microwave Disinfection Protocol, Sara M. Bahaa, Sara M. Shabaan
Al-Azhar Journal of Dentistry
Purpose: This study aimed to evaluate the effect of microwave disinfection protocol on dimensional changes and the pattern of occlusal pressure over lined complete dentures. Material and methods: ten completely edentulous patients were selected to receive conventional complete dentures. A layer of soft liner was added to the lower dentures and occlusal pressure contacts were recorded using T-scan device. The lower dentures were subjected to microwave radiation 700 Watt for three minutes once a week for four successive weeks in a dry condition. Twenty maxillary denture bases were constructed and lined with soft liner, the gap between the lined denture …
Effect Of Different Horizontal Condylar Guidance Registration Methods And Articulators On Bilateral Balanced Occlusion Of Complete Denture, Mai A. El-Ghiaty, Mostafa M. Abd El-Ghany, Naglaa S. El-Kilani, Reem M. Abdeen
Effect Of Different Horizontal Condylar Guidance Registration Methods And Articulators On Bilateral Balanced Occlusion Of Complete Denture, Mai A. El-Ghiaty, Mostafa M. Abd El-Ghany, Naglaa S. El-Kilani, Reem M. Abdeen
Al-Azhar Journal of Dentistry
Purpose: To evaluate the effect of different horizontal condylar guidance registration methods and articulators on bilateral balanced occlusion of complete denture. Materials and Methods: Twelve completely edentulous patients with ages ranging from 50-60 years old were selected from the outpatient clinics of the Removable Prosthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University. Twelve complete dentures were constructed according to the balanced occlusal concept and then duplicated for experimental work. Horizontal condylar guidance angles were measured using three different methods; the protrusive interocclusal wax record method, tracing method, and Cone Beam Computed Tomography (CBCT) scan. The angles were adjusted …
Evaluation Of The Remineralizing Effect Of Natural Versus Synthetic Materials On Deep Carious Dentin, Dalia M. Elasser, Maha A. Niazy, Wael E. Jamil, Doaa A. Elsharkawy, Haneya A. A. Anani
Evaluation Of The Remineralizing Effect Of Natural Versus Synthetic Materials On Deep Carious Dentin, Dalia M. Elasser, Maha A. Niazy, Wael E. Jamil, Doaa A. Elsharkawy, Haneya A. A. Anani
Al-Azhar Journal of Dentistry
Purpose :The purpose of this in-vivo study was to investigate the remineralizing effects of natural (propolis, hesperidin) versus synthetic agent (silver diamine fluoride with potassium iodide) after treatment of deep carious dentin at different time intervals. Materials and methods: Patients with deep carious class I lesions were selected according to inclusion and exclusion criteria. Class I carious lesions were randomly distributed into 4 groups according to treatment material: 1. Propolis, 2. Hesperidin, 3.Silver diamine fluoride with potassium iodide (SDF+KI), and 4. Control group (no treatment). Class I cavities were all prepared using step-wise caries removal technique. The treatment materials were …
Fracture Resistance Of Provisional Crowns Fabricated By Conventional, Cad/Cam, And 3d Printing Techniques, Ola A. Sakr, Mona H. Mandour, Zahraa A. Gabal
Fracture Resistance Of Provisional Crowns Fabricated By Conventional, Cad/Cam, And 3d Printing Techniques, Ola A. Sakr, Mona H. Mandour, Zahraa A. Gabal
Al-Azhar Journal of Dentistry
Purpose: The aim of this study was to compare fracture resistance of provisional restorations fabricated with conventional manual procedure, CAD/CAM milling and 3D Printing techniques. Materials and Methods: one human upper first premolar was prepared and duplicated using epoxy resin to produce twenty one dies. Accordingly, a total of (N=21) provisional crowns were constructed. The Constructed provisional restorations were divided into 3 groups according to the method of construction (n=7 for each group), Group 1: Provisional crowns were constructed using conventional manual technique, Group2: Provisional crowns were constructed using CAD/CAM milling technique, Group3: Provisional crowns were constructed using 3D Printing …
Patient Satisfaction With Complete Denture Constructed Using Modified Windows Impression Technique With Custom Dual Tray For Hypermobile Maxillary Residual Ridge, Aisha Z. Mostafa, Noha H. El-Shaheed
Patient Satisfaction With Complete Denture Constructed Using Modified Windows Impression Technique With Custom Dual Tray For Hypermobile Maxillary Residual Ridge, Aisha Z. Mostafa, Noha H. El-Shaheed
Al-Azhar Journal of Dentistry
Purpose: Patient satisfaction for the complete denture constructed by using two impression techniques was assessed. A custom dual tray was used as a modification of window impression technique versus the conventional impression technique.Subjects and methods: Ten completely edentulous patients with anterior hypermobile tissues were included in this study, using a non-randomized cross-over study design. The aim of the study was to evaluate patient satisfaction with two maxillary complete dentures constructed for each patient, one using the windows impression approach with a custom-made dual tray and the other using the conventional impression technique with a custom single tray. The time interval …
The Influence Of Different Implant Abutment Sizes On Fracture Resistance Of Two Monolithic Ceramic Crown Systems, Enaam Abdel-Rahman, Sahar Abdel-Aziz, Zainab El Sharkawy
The Influence Of Different Implant Abutment Sizes On Fracture Resistance Of Two Monolithic Ceramic Crown Systems, Enaam Abdel-Rahman, Sahar Abdel-Aziz, Zainab El Sharkawy
Al-Azhar Journal of Dentistry
Purpose: to study the effect of different implant abutment sizes on fracture resistance of two ceramic monolithic crown systems. Material and Methods: Research Ethics committee approval of faculty of Dental Medicine for Girls was obtained (REC18-065). Forty (40) Titanium implant supported abutments were fabricated and divided into2 groups (n=20 each) according to abutment diameter; Group (1): implant abutment diameter 4mm and Group (2): implant supported abutment diameter 4.5mm. Samples of each group were divided into 2 sub-groups (n=10 each) according to type of monolithic ceramic crowns. Subgroup(A): zirconia ceramic crowns, Subgroup(B): vita suprinity crowns. All crowns were cemented to implant …
Effect Of Irradiation With 980-Nm Diode Laser On The Microhardness Of Young And Old Root Canal Dentin After Treatment With Chemical Solutions, Bessan Ghazy, Mervat Fawzy, Heba Abdelkafy
Effect Of Irradiation With 980-Nm Diode Laser On The Microhardness Of Young And Old Root Canal Dentin After Treatment With Chemical Solutions, Bessan Ghazy, Mervat Fawzy, Heba Abdelkafy
Al-Azhar Journal of Dentistry
Purpose: The purpose of this study was to evaluate the effect of diode laser-980nm on microhardness of young and old canal dentin after treatment with NaOCl, NaOCl/EDTA and distilled water solutions. Material and Methods Forty-eight single rooted premolars were divided into three groups according to the chemical solutions used (16 each) (8 for young teeth <30 years old and 8 for old teeth >50 years old). Group I: irrigated with 5ml of 2.6% NaOCl activated with diode laser, group II: irrigated with 5ml of 2.6% NaOCl without laser activation followed by 5ml of 17% EDTA activated with diode laser and group III: irrigated with 5ml of distilled water …
Effect Of Two Designs Of Extracoronal Attachments On Supporting Structures In Kennedy Class Ii Mandibular Partial Denture, Menna A. Mohamed, Shereen M. Kabeel, Dina M. Kholief
Effect Of Two Designs Of Extracoronal Attachments On Supporting Structures In Kennedy Class Ii Mandibular Partial Denture, Menna A. Mohamed, Shereen M. Kabeel, Dina M. Kholief
Al-Azhar Journal of Dentistry
Purpose: The aim of this study was to compare between the effects of using two different designs of extra coronal precision attachments on supporting structures of the abutment teeth in unilateral free end saddle partial denture. Material and Methods: Ten Kennedy class II partially edentulous patients with the last second premolar which is lasting abutment tooth were selected. The patients were divided into two groups (each group five patients), group I; patients were received unilateral partial denture retained by OT unilateral extra coronal attachment, group II; patients were received partial denture retained by OT cap extra coronal attachment with bilateral …
The Effect Of Natural Antioxidants On Free Radicals Clearance After Tooth Bleaching, Eman Soliman, Maha Niazy, Fatma Hussein
The Effect Of Natural Antioxidants On Free Radicals Clearance After Tooth Bleaching, Eman Soliman, Maha Niazy, Fatma Hussein
Al-Azhar Journal of Dentistry
Purpose: This in-vitro study aimed to assess the impact of natural antioxidants on free radical’s removal at different time intervals. Materials and methods: A total of sixty intact upper central incisors were randomly split into four groups (n=15 each) according to the antioxidant used and all groups were bleached using gel containing 40% hydrogen peroxide (HP): G1 (control group): Bleaching with no antioxidant. G2: Bleaching followed by 5% grape seed extract solution for 10 mins G3: Bleaching followed by 5% green tea extract solution for 10 mins G4: Bleaching followed by 10% sodium ascorbate solution for 10 mins. The assessment …
Color Stability Of Nano Hybrid Composite And Acrylic Denture Teeth Exposed To Different Coloring Solutions, Tayseer Maaly, Mahmoud El Homossany
Color Stability Of Nano Hybrid Composite And Acrylic Denture Teeth Exposed To Different Coloring Solutions, Tayseer Maaly, Mahmoud El Homossany
Al-Azhar Journal of Dentistry
Purpose: This study was conducted to evaluate the effect of different staining solutions on color stability and surface roughness (SR) of Nano hybrid composite and acrylic denture teeth. Materials and Methods: Fifty specimens divided into two main groups. Each group divided into 5 subgroups each of 5 specimens of acrylic and composite teeth were used in this test. Teeth were immersed in four coloring solutions in addition to distilled water. Color measurements were erformed using spectrophotometer. Color change values were determined before and after immersion in the coloring solutions. The CIE L*a*b* color space was used to evaluate color differences. …
The Anticariogenic Effect Of Miswak (Silvadora Persica) And Grape Seed Extract, Hala A. Khoriba, Maha Niazy, Doaa El Sharkawy
The Anticariogenic Effect Of Miswak (Silvadora Persica) And Grape Seed Extract, Hala A. Khoriba, Maha Niazy, Doaa El Sharkawy
Al-Azhar Journal of Dentistry
Purpose: To evaluate the effect of Miswak and Grape seed extract (GSE) on enamel and dentine subjected to artificial acid challenge in-vitro. Materials and Methods: A total of thirty sound freshly extracted sound human permanent periodontally affected upper molars were used. 30 enamel specimens were cut from the buccal surface of the teeth and 30 dentin specimens were cut from the cervical root area. All specimens were polished to obtain a flat polished surface. Ethanolic miswak extract was prepared by percolation method. Solutions of 10% ethanolic miswak extract, 6.5% Grape seed extract and 0.05% sodium fluoride were prepared. Specimens were …
Effect Of Egg Shell And White Tea Dentin Pretreatment On Microtensile Bond Strength Of Universal Adhesive System, Reem Roushdy, Maha Niazy, Hadeel Mohamed
Effect Of Egg Shell And White Tea Dentin Pretreatment On Microtensile Bond Strength Of Universal Adhesive System, Reem Roushdy, Maha Niazy, Hadeel Mohamed
Al-Azhar Journal of Dentistry
Purpose: This study was conducted to evaluate the effect of egg shell and white tea dentin pre-treatment on microtensile bond strength between resin composite and dentin surface. Materials and Methods: Forty-five extracted molar teeth were divided into three subgroups according to dentin pretreatment ; with no treatment (control ), Egg shell, and white tea. Each group was subdivided for microtensile testing into three equal subgroups, either after 24 hours (T0), after1 month (T1), and after 3 months (T2). The occlusal enamel was removed. And according to each group one of pretreatments was used. Resin composite blocks were fabricated on dentin …
Evaluation Of Canal Transportation And Centering Ability Of Curved Canal Prepared By Two Rotary Systems, Hadeer Ibrahim, Mohammed Khalifa, Heba Abdelkafy
Evaluation Of Canal Transportation And Centering Ability Of Curved Canal Prepared By Two Rotary Systems, Hadeer Ibrahim, Mohammed Khalifa, Heba Abdelkafy
Al-Azhar Journal of Dentistry
Purpose: The aim of this study was to evaluate canal transportation and centering ability ratio of 2 single Ni-Ti instruments; one shape and wave one gold using Cone Beam Computed Tomography scanning (CBCTs). Materials and Methods: Forty mesiobuccal canals of human mandibular first molars with a curvature angle that ranges from 15° to 35° were divided into 2 groups based on the type of instrument used to prepare the canal. Group I: instrumented with one shape and Group II: instrumented with Wave One Gold. Pre and post preparation, canals were scanned using CBCT scanner to evaluate the amount of canal …
Preparation, Characterization And Evaluation Of A Poly Methyl Methacrylate Bone Cement Modified By Montmorillonite Loaded With Silver Nano Particles, Horia Elsherif, Sayed Saniour, Inas Motawea, Hisham Essawy, Mostafa Abd El-Gany, Dalia Zaki
Preparation, Characterization And Evaluation Of A Poly Methyl Methacrylate Bone Cement Modified By Montmorillonite Loaded With Silver Nano Particles, Horia Elsherif, Sayed Saniour, Inas Motawea, Hisham Essawy, Mostafa Abd El-Gany, Dalia Zaki
Al-Azhar Journal of Dentistry
Purpose: The aim of this study was to prepare and characterize poly methyl methacrylate (PMMA) composite bone cement filled with montmorillonite (MMT) and loaded with silver nanoparticles (AgNPs). Materials and methods: AgNPs were synthesized by the chemical reducing method. Characterization was done using Field emission scanning electron microscope (FE-SEM), X-ray diffraction analysis (XRD) and Thermogravimetric analysis (TGA). Two and four weight percentages of MMT powder and the prepared MMT/AgNPs powder were added to the bone cement.A total of 75 PMMA bone cement specimens were prepared and divided into 5 groups (control group, PMMT/MMT 2%, PMMT/MMT 4%, PMMT/MMTAgNps 2% and PMMT/MMTAgNps …
Comparative Study On The Remineralizing And Antimicrobial Effect Of Naturally And Synthetically Based Agents, Mervat Sadik, Wael Jamil, Asmaa Mosleh
Comparative Study On The Remineralizing And Antimicrobial Effect Of Naturally And Synthetically Based Agents, Mervat Sadik, Wael Jamil, Asmaa Mosleh
Al-Azhar Journal of Dentistry
Purpose: This study aimed to evaluate and compare the remineralizing and antimicrobial effect of chitosan-based agent and Flavonoid. Materials and methods: This study was carried out in two phases; remineralization phase and antimicrobial phase. Ninety (90) bovine mandibular incisors were used in the study with forty-five (45) teeth in each phase. Teeth were prepared and randomized into three groups according to treatment material (n=15 samples) as follows; group I; control group (being immersed in artificial saliva), group II; treated with flavonoid and finally group III; treated with chitosan-based agent. Each agent was applied for 10 minutes six times/day. In phase …
Color Masking Ability Of Three Dental Ceramics With Different Translucencies, Arwa Mohamed, Osama Abd-Elghany, Shereen Abdul-Hameed
Color Masking Ability Of Three Dental Ceramics With Different Translucencies, Arwa Mohamed, Osama Abd-Elghany, Shereen Abdul-Hameed
Al-Azhar Journal of Dentistry
Purpose: the aim of this study was to evaluate the color masking ability of three dental ceramics with different translucencies. Materials and methods: Fifty-four discs of ceramics were made from three dental ceramic materials (High translucency zirconia, low translucency IPS E.max CAD and translucent Vita Suprinity). Shade of three dental ceramics was A2. They were divided into three equal groups (n=18). Each group was subdivided into three subgroups (n=6) according to composite substrate shade (A4, B4, C4) on which each ceramic disc was cemented with translucent resin cement. Color difference(ΔE) and translucency parameter (TP) were evaluated by spectrophotometer. Results: Before …
Effectiveness Of Ginger-Honey Mixture And Rosemary On Remineralization And Prevention Of Enamel White Spot Lesions Measured By Color Change, Aya Shaker, Wael Jamil, Doaa El Sharkawy
Effectiveness Of Ginger-Honey Mixture And Rosemary On Remineralization And Prevention Of Enamel White Spot Lesions Measured By Color Change, Aya Shaker, Wael Jamil, Doaa El Sharkawy
Al-Azhar Journal of Dentistry
Purpose: To evaluate the effect of three natural materials (Ginger and honey mixture and rosemary oil) on remineralization and prevention of enamel white spot lesions measured by color change using vita easy shade. Material and methods: The study was carried out in two phases remineralization and prevention phase, sixty four anterior teeth were used for each phase. Teeth were prepared and randomized into four groups according to treatment material (n=8 samples). Group I: control group which receives no treatment. Group II: treated with 1.23% sodium fluoride gel. Group III: treated with ginger-honey mixture. Group IV: treated with rosemary oil. Treatment …
Evaluation Of Single Visit Endodontic Treatment Outcome In Teeth With Asymptomatic Necrotic Pulp And Apical Periodontitis Using Endovac Irrigation Device: Randomized Controlled Clinical Trial, Asmaa Abdelmawgoud, Mervat Fawzy, Maha Elhousiny, Marwa Abdel-Aziz
Evaluation Of Single Visit Endodontic Treatment Outcome In Teeth With Asymptomatic Necrotic Pulp And Apical Periodontitis Using Endovac Irrigation Device: Randomized Controlled Clinical Trial, Asmaa Abdelmawgoud, Mervat Fawzy, Maha Elhousiny, Marwa Abdel-Aziz
Al-Azhar Journal of Dentistry
Purpose: This study evaluated the effectiveness of using EndoVac irrigation device on microbial reduction and postoperative pain in single rooted teeth with necrotic teeth and apical periodontitis after single visit treatment. Subjects and Methods: Thirty six single rooted teeth from patients of age range between 20 and 50 years old were involved in this study. According to irrigation procedures, patients were assigned randomly and equally into two groups of 18 teeth per group. Group I (conventional irrigation) and Group II (EndoVac irrigation). Irrigating solution for both groups was 2.5% sodium hypochlorite. All patients were treated in a single visit. The …
Cytotoxic Effect Of Different Concentrations Of Chitosan And Propolis Nanoparticles On Periodontal Ligament Stem Cells, Huda Mostafa, Wael Kamel, Dina Abdel Fatah, Heba Abdelkafy
Cytotoxic Effect Of Different Concentrations Of Chitosan And Propolis Nanoparticles On Periodontal Ligament Stem Cells, Huda Mostafa, Wael Kamel, Dina Abdel Fatah, Heba Abdelkafy
Al-Azhar Journal of Dentistry
Purpose: The purpose of this study was to assess the cytotoxic effect of different concentrations of Chitosan Nanoparticles (CNPs) and Propolis Nanoparticles (PNPs) on periodontal ligament stem cells using MTT assay. Materials and Methods: Immature, impacted third molars were used to isolate stem cells. Cells were seeded in 96-well culture plates. Groups were divided into six experimental groups: Group I: 17% EDTA, Group II: 1% propolis NPs, Group III: 2% propolis NPs, Group IV: 1% chitosan NPs, Group V: 2% chitosan NPs, Group VI: cultured cells not receive any material. Cytotoxic effect of these materials on stem cells was evaluated …
Optical Properties Of Zirconia Monolithic Crowns Constructed Using Speed Sintering Cycle, Abeer Ibrahem, Mona Mandour, Walaa El-Mekkawi
Optical Properties Of Zirconia Monolithic Crowns Constructed Using Speed Sintering Cycle, Abeer Ibrahem, Mona Mandour, Walaa El-Mekkawi
Al-Azhar Journal of Dentistry
Purpose: This study examined the effect of change in sintering time on the optical properties of monolithic zirconia crowns using ZirCAD Prime. Materials and methods: A Sound premolar was scanned using optical oral scanner. The scanned premolar was digitally prepared to receive zirconia restoration using Exocad software following standard preparation guidelines for ceramic restorations. 3D printed resin master die was produced. An impression was made for the 3D printed master die using polyvinylsiloxane impression material then poured using epoxy resin. The procedure was repeated to obtain 16 epoxy resin models. Sixteen crowns were produced by CADCAM system from ZirCAD Prime …
Postoperative Pain And Microbiological Evaluation After Using 810nm Diode Laser Disinfection In Single Rooted Teeth With Necrotic Pulp And Periapical Radiolucency: Randomized Control Clinical Trial, Sabah Sobhy, Mervat Fawzy, Hemat Elsheikh, Marwa Abdel-Aziz
Postoperative Pain And Microbiological Evaluation After Using 810nm Diode Laser Disinfection In Single Rooted Teeth With Necrotic Pulp And Periapical Radiolucency: Randomized Control Clinical Trial, Sabah Sobhy, Mervat Fawzy, Hemat Elsheikh, Marwa Abdel-Aziz
Al-Azhar Journal of Dentistry
Purpose: This study aimed to evaluate the treatment outcome after using diode laser disinfection of root canals in necrotic teeth with periapical radiolucency. Subjects and Methods: Thirty patients of age range between 20 and 50 years old were involved in this study. They were divided randomly into two groups (15 teeth each). Group I: Access cavity preparation was performed and microbiological sample (SI1) was taken. The root canal was prepared using ProTaper rotary instruments up to #F4 and irrigated with 2ml of 2.6% sodium hypochlorite, this was repeated after each instrument use with total volume 14ml. Smear layer removal with …
Fracture Resistance Of Cad/Cam Fabricated Polyetheretherketone (Peek) Endocrowns And Post Retained Crowns With Two Preparation Designs, Walaa El-Hefnawy, Atef Ahmed, Walaa El-Mekkawi
Fracture Resistance Of Cad/Cam Fabricated Polyetheretherketone (Peek) Endocrowns And Post Retained Crowns With Two Preparation Designs, Walaa El-Hefnawy, Atef Ahmed, Walaa El-Mekkawi
Al-Azhar Journal of Dentistry
Purpose: The aim of this study was to assess the fracture resistance of PEEK endocrowns and post-retained PEEK crowns with two preparation designs (ferrule and without ferrule). Materials and methods: Eighty sound human mandibular firstpremolars were selected. Teeth were divided into 4 main groups (n= 20): Group1: Were assigned for endocrown preparation with Butt joint. Group 2: Were assigned for endocrown preparation with Shoulder finish line. Group 3: Were assigned for PEEK post & core preparation without ferrule. Group 4: Were assigned for PEEK post & core preparation with ferrule. Endocrowns of both Group 1 and Group 2 were made …
Evaluation Of Retention For Maxillary Complete Denture Constructed By Conventional And 3d Printing Techniques, Norhan Behairy, Shereen Kabeel, Hager El-Sadany
Evaluation Of Retention For Maxillary Complete Denture Constructed By Conventional And 3d Printing Techniques, Norhan Behairy, Shereen Kabeel, Hager El-Sadany
Al-Azhar Journal of Dentistry
Purpose: Evaluating retention of maxillary complete dentures fabricated by threedimensional (3D) printing technique compared to conventional technique. Subjects and Methods: Ten completely edentulous patients were selected from the outpatient clinic of Removable Prosthodontics Department, Faculty of Dental Medicine for Girls, Al-Azhar University. Each patient received maxillary and mandibular dentures fabricated by conventional technique besides maxillary denture fabricated by 3D printing technique. All patients were divided equally into two groups; First group patients received conventional dentures first, then 3D printed ones. Second group patients received 3D printed dentures initially and conventional dentures later. Results: Regarding denture type, it was found that …
Effect Of Biostimulation On Response Of Immature Teeth With Necrotic Pulp And Apical Periodontitis To Regenerative Endodontic Therapy In Immature Dogs Teeth, Eman Fouad, Mervat Fawzy, Maha Elhousiny, Ali Saafan, Seham Abdel Ghani
Effect Of Biostimulation On Response Of Immature Teeth With Necrotic Pulp And Apical Periodontitis To Regenerative Endodontic Therapy In Immature Dogs Teeth, Eman Fouad, Mervat Fawzy, Maha Elhousiny, Ali Saafan, Seham Abdel Ghani
Al-Azhar Journal of Dentistry
Purpose: This study was carried out to evaluate the effect of biostimulation on the regenerative response of immature teeth with necrotic pulp and apical periodontitis in dogs. Materials and Methods: Seventy-two root canals were employed in the present study as follows: Sixty root canals for experimental groups and twelve as positive and negative controls. After the induction of pulp necrosis and apical periodontitis, roots were divided into two groups, group I: Regenerative Endodontic Therapy (RET) with subsequent biostimulation (seven sessions at 808 nm diode laser at output power of300 mW for 90 seconds) and group II: RET without biostimulation. The …
Evaluation Of Marginal Fit And Fracture Resistance Of Zirconia Implant Abutment Supporting Two Types Of Metal Free Cad/ Cam Restorations, Ayat Montaser
Al-Azhar Journal of Dentistry
Purpose: To evaluate marginal fit as well as fracture resistance of zirconia implant abutment supporting two types of metal free CAD/CAM restorations. Materials and methods: Twenty ready-made ZrO2 abutments resembling lower first premolarsqueezed and stabled to its conforming titanium dummy implants were implanted in epoxy resin blocks. Samples were divided into two groups in relation to the material utilized for the fabrication of the copings; group (I) (n=10): zirconia copings, group (II) (n=10): breCAM.BioHPP copings. All copings were machined using CAD/CAM system. Samples were exposed to a fatigue procedure for 20,000 cycles. Marginal fit was determined using digital stereomicroscope. Fracture …
Effect Of Pomegranate And Banana Extracts On Microshear Bond Strength Of Resin Composite To Bleached Bovine Enamel: An In-Vitro Study, Summer Abodahb, Maha Nizay, Maha Elkorashy
Effect Of Pomegranate And Banana Extracts On Microshear Bond Strength Of Resin Composite To Bleached Bovine Enamel: An In-Vitro Study, Summer Abodahb, Maha Nizay, Maha Elkorashy
Al-Azhar Journal of Dentistry
Purpose: To evaluate the effect of pomegranate and banana extracts (natural antioxidants) versus ascorbic acid (synthetic antioxidant) prepared in 10% and 15% concentrations on microshear bond strength (μSBS) to bleached enamel. Materials and Methods: A total of 56 bovine incisors were selected for the current study. Forty teeth were used for microshear bond strength and divided into 5 groups according to antioxidant type; Group 1: No bleaching + No antioxidant (negative control), Group 2: Bleaching + No antioxidant (positive control), Group 3: ascorbic acid, Group 4: pomegranate extract and Group 5: banana extract. Groups 3,4 and 5 were further divided …
Comparative Evaluation Of Smear Layer Removal By Apple Vinegar Using Laser Activated Irrigation And Endovac System: Randomized Control Trial, Doaa Azzam, Wael Kamel, Hemat Elsheikh
Comparative Evaluation Of Smear Layer Removal By Apple Vinegar Using Laser Activated Irrigation And Endovac System: Randomized Control Trial, Doaa Azzam, Wael Kamel, Hemat Elsheikh
Al-Azhar Journal of Dentistry
Purpose: This study was designed as randomized control trial to assess the effect of laser activation versus EndoVac systems with 5% apple vinegar irrigant on smear layer removal from root canal wall using scanning electron microscope. Material and Methods: Thirty three single rooted teeth were selected and prepared using Universal ProTaper rotary files and irrigated using sodium hypochlorite. Samples were randomly alienated into three groups (11 samples each) in proportion to method of activation of apple vinegar which used as final irrigant: Group I: Laser activated irrigation using810nm diode laser at 1.5 Watts power in pulsed mode, Group II: EndoVac …
Evaluation Of Microleakage Of Premixed Bioceramics And Bio Mta As Furcal Perforation Repair Materials In Primary Teeth, Shahenda Abdallah, Yomna Mourad, Shaymaa Shishiny
Evaluation Of Microleakage Of Premixed Bioceramics And Bio Mta As Furcal Perforation Repair Materials In Primary Teeth, Shahenda Abdallah, Yomna Mourad, Shaymaa Shishiny
Al-Azhar Journal of Dentistry
Purpose: The aim of this in vitro study was to evaluate the microleakage of premixed BioCeramics (BCs) and mineral trioxide aggregate (MTA) for sealing primary molar furcal perforations. Materials and Methods: This study was carried out on 30 extracted mandibular primary molars. Perforations of the furcation areas were created in the pulp chamber floor of the teeth. The molars were then divided randomly in two groups (n=15). Perforations were then repaired with biocompatible materials. After 72 h, the teeth were immersed in 2% basic fuchsine dye solution for 24h. The teeth were then sectioned longitudinally and evaluated for dye leakage. …