Al-Azhar Assiut Dental Journal最新文献

{"title":"Analysis of The Gingival Biotype Based on The Measurement of Hard and Soft Dental Tissue Dimensions","authors":"Amr Mohamed Hassan Abd-Allah, Mohamad Fouad Edrees, K. Hassan","doi":"10.21608/aadj.2019.60174","DOIUrl":"https://doi.org/10.21608/aadj.2019.60174","url":null,"abstract":"ABSTRACT Aim: It is to determine the relationship between gingival thickness and (buccal bone thickness, crown length, crown width, papillary height and papillary width) at upper central incisors teeth by means of a noninvasive and relatively accurate digital registration method. Subjects and Methods: In 100 periodontally healthy subjects, cone-beam computed tomographic images were obtained. Measurements of buccal bone thickness and gingival thickness at the central incisors was performed at points 1 mm from the alveolar crest. Correlation coefficient was calculated to assess the correlation between gingival thickness and buccal bone thickness. Results: The mean and standard deviation values were calculated for each group. Pearson correlation was used to find the correlation between Gingival thickness and each of Bone thickness, Crown length, Crown width, Papillary height and Papillary width. Independent sample t-test was used to compare between females and males’ results in each variable. The significance level was set at p ≤ 0.05A statistically significant difference was found between females and males in all variables Gingival thickness, Bone thickness, Crown length, Crown width, Papillary height and Papillary width where (p<0.001), (p<0.001), (p=0.001), (p=0.027), (p=0.036) and (p<0.001) respectively, where females always showed thin type. There was a significant positive relationship between gingival thickness and Bone thickness, which states that increasing gingival thickness will be accompanied by increasing in bone thickness and vice versa. Conclusion: there are significant correlation between the gingival biotype, bone thickness, Crown length, crown width and papilla of anterior incisor crowns and respectively were females always showed thin biotype than males.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132687125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of topically applied probiotic treatment on localized aggressive periodontitis patients: A split mouth study","authors":"I. Ibrahim, Ahmad Kassem Mohammad, Mohamad Fouad Edrees","doi":"10.21608/aadj.2019.60184","DOIUrl":"https://doi.org/10.21608/aadj.2019.60184","url":null,"abstract":"Aim: This study aims to evaluate clinically the effect of probiotic treatment on localized aggressive periodontitis patients. Subjects and methods: This study was designed as a randomized, controlled, split mouth clinical trial, carried out on localized aggressive periodontitis (LAP) which having almost two identical sites with clinical probing depth of ≥ 5 mm. Two contralateral sites were randomly divided into two groups, Group I: received conventional periodontal treatment, scaling and root planning combined with topical application of probiotic. Group II: received conventional periodontal treatment, scaling and root planning only. Patients were evaluated clinically using the following parameters: plaque index (PI), gingival index (GI), probing pocket depth (PPD) and clinical attachment level (CAL) and radiographically by radiographic bone density (pixel) at baseline, 3, 6, and 9 months. Results: Clinical and radiographic results of this study showed that: there were a significant reduction for assessed variables (Plaque Index, gingival index, probing pocket depth and clinical attachment level and significant increase in radiographic bone density in probiotic group compared to group II. Conclusion: Adjunctive use of topically applied probiotic appeared to be beneficial effect in localized aggressive periodontitis patients when compared with scaling and root planning alone.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122644327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Marginal Accuracy of Fully Contoured Zirconia Veneer With Two Preparation Designs","authors":"Hend Elkawash, Moamen Ahmed Abd Elkader","doi":"10.21608/aadj.2019.60177","DOIUrl":"https://doi.org/10.21608/aadj.2019.60177","url":null,"abstract":"ABSTRACT Aim: The purpose of this study is to evaluate the marginal accuracy of fully contoured zirconia laminate veneer utilizing two preparation designs; butt joint incisal reduction and incisal chamfer with palatal over lab. Subjects and Methods: fortyeight maxillary central incisors were prepared into two designs in relation to incisal finish line of laminate preparation; butt joint incisal reduction and incisal chamfer with palatal over lab. Half of samples were restored with pressable lithium disilicate (e.max) as control group, and the other half were restored with fully contoured translucent machinable zirconia (Bruxzair). All laminates were cemented with resin cement and the marginal accuracy were measured. Results: With butt-joint margin design; it was found that e.max group recorded statistically significant higher marginal gap mean value (63.54±1.8 µm) than translucent Zirconia group (57.19±8.4 µm) as indicated by unpaired t-test (t value=2.6, P=0.0179<0.05) .With over-lap margin design; it was found that e.max group recorded statistically significant higher marginal gap mean value (73.46±11.2 µm) than translucent Zirconia group (64.58±5.1 µm) as indicated by unpaired t-test (t value=2.5, P=0.0203 < 0.05). Conclusion:  The marginal accuracy of the fully contoured zirconia veneer showed high adaptation supporting its usage for laminate veneer fabrication.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131187168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Platelet Rich Fibrin Combined with Nano Crystalline Hydroxyappatite in Treatment of Grade II Mandibular Furcation Defect","authors":"Mohamad Fouad Edrees, Mona Maher, K. Hassan","doi":"10.21608/aadj.2019.60191","DOIUrl":"https://doi.org/10.21608/aadj.2019.60191","url":null,"abstract":"Aim: This study aims to evaluate the effect of Platelet Rich Fibrin combined with Nano crystalline Hydroxy appatite bone graft on grade II mandibular furcation involvement. Subjects and methods: Thirty patients having grade II mandibular furcation defects, with vertical probing depth (VPD) ≥5mm and horizontal clinical attachment level (HCAL) ≥3mm. Following phase I therapy were classified into two groups, group1 received NcHA bone graft and group 2 received NcHA+PRF. Clinical and radiographic parameters were recorded at baseline, 6 and 12 months postoperatively.  Results: Both treatment groups showed a significant probing pocket depth (PPD) reduction, clinical attachment gain, increase bone density 12‑months after surgery compared with baseline. However, there was a highly significant PPD reduction and clinical attachment gain when PRF was added to NcHA. Conclusion: The NcHA bone graft in combination with PRF demonstrated clinical advantages beyond that achieved by the NcHA alone.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128566794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Piezosurgical Ridge Splitting and Osseodensification on The Primary Stability of The Implant in Narrow Ridge: (Comparative Randomized Controlled Split Mouth Clinical Trial)","authors":"Elzahraa Abrahim Elgrany, Ibrahium Mwafey, F. A. Zaid, K. Hassan","doi":"10.21608/aadj.2019.60180","DOIUrl":"https://doi.org/10.21608/aadj.2019.60180","url":null,"abstract":"Aim: This study aims to evaluate the effect of and compare between the piezosurgical ridge splitting and osseodensification in implant primary stability.  Subjects and Methods: 28 implants were divided into two groups. Group I: 14 implants in sites received piezosurgery technique. Group II: 14 implants in sites received osseodensification technique.  Then, all implants were evaluated clinically  for primary stability after implant insertion by Osstell mentor magnetic resonance device and radiographically for peri-implant bone density.  Results: unpaired t-test between the two groups showed moderate statistical significant difference in group  II when compared with group I in both primary stability and bone density  Conclusion:  The primary stability in both piezosurgical ridge splitting and osseodensification techniques is within normal range but in favor of osseodensification technique suggesting that osseodensification enhance the bone density thereby improve the implant primary stability.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131599231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accuracy of Bracket Transfer with Two Indirect Bonding Techniques","authors":"Mahmoud Salah, S. Saleh","doi":"10.21608/aadj.2018.53965","DOIUrl":"https://doi.org/10.21608/aadj.2018.53965","url":null,"abstract":"Objective:  to measure the accuracy of  brackets transfer with two indirect bonding techniques using cone beam computed tomography. Materials and Methods: One hundred fourty brackets were bonded to fourteen subjects (upper arch) receiving orthodontic treatments. Orthodontic brackets will placed on the casts with an adhesive. After bracket placement, Cone beam computed tomography (CBCT) scans of the casts  obtained .After bracket transfer another Cone beam computed tomography (CBCT) scans of the subjects obtained. The corresponding teeth on both models will then digitally superimposed. All data collected will be tabulated and statistically analyzed. Results: The indirect bonding method investigated in this study was accurate and reliable within the specified acceptable boundaries with directional bias specially toward gingival Conclusion: Vacuum formed technique were significantly less accurate than silicone based technique  in the Occlusogingival direction.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123477606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Nanoparticles Incorporated to Denture Bases on Somephysicomechnicalproperties","authors":"Ahmed Fathey, Mostafa Abd El-kawiM, M. Gaber, D. Fattouh","doi":"10.21608/aadj.2018.53971","DOIUrl":"https://doi.org/10.21608/aadj.2018.53971","url":null,"abstract":"Objective: To assess flexural strength, color stability, surface roughness of heat cured acrylic and thermoplastic resins materials after addition of (Ag Z the flexural strength decrease with increasing ZrONPs concentrations. Color showed significant changes for acrylic group than flexible group with Ag modified subgroup, but for ZrO modified subgroups, flexible group recorded significant changes than acrylic resin group. Finally, there were non-significant differences in surface roughness occurred with all groups with different nano-particle type or concentration. Conclusion: flexural strength depends on several factors including; the type of denture base, types and concentrations of nanoparticles used. Also significant color differences were detected between control group and other tested groups that were clinically unacceptable. Surface roughness of all groups showed non-significant differences.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115497967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Different Improvement Methods of Bonding Between The Denture Base and Silicone-Based Liner","authors":"Mostafa Abosrie, Maged El saadawy, A. Mohamed","doi":"10.21608/aadj.2018.53938","DOIUrl":"https://doi.org/10.21608/aadj.2018.53938","url":null,"abstract":"STATEMENT OF PROBLEM: Failure of the bond between the acrylic resin and silicone based liner material is commonly encountered in clinical practice. PURPOSE: Examine effect of different treatment methods on the   tensile bond strength between a silicone –based liner and denture base before and after the thermocycling.  MATERIAL AND METHODS: 140 test samples were fabricated. The samples were divided into 14 groups (n=10), according to the treatments applied. To enhance the bonding capacity between these materials, acrylic resin surface was modified using acetone, methyl methacrylate(MMA),isobutylmethacrylate(IBMA), 2-hydroxyethylmethacrylate (2-HEMA), sandblasted with110 μm aluminum oxide particles (110 μmAL2O3) and combination between sandblasting and each of these chemical material individually while in the group 11 ,silicone based liner was immersed in IBMA but in the group 12, acrylic resin surface was modified using sandblasting and a silicone based liner was immersed in IBMA .in addition ,in the  group 13; silicone based liner was immersed in 2-HEMA  and Group 14, acrylic resin surface was modified using Sandblasting and silicone based liner was immersed in2-HEMA. Silicone based liner was processed between 2 PMMA blocks. In each group, five samples were thermo cycled in water bath (5-55˚C) 500 cycles before tensile testing, whereas the other five were directly tested without thermocycling using Instron testing machine with speed rate (1 mm/minute) to measure tensile bond strength by MPa. All data were statistically analyzed by One way ANOVA, Tukey post hoc test and Paired sample t-test. RESULTS: There was no statistically significant difference between all tested groups where (p=0.154) before thermocycling while after the thermocycling, there was a statistically significant difference between all tested groups where (p=0.001) but there was no a statistically significant difference between control and all other tested groups. Furthermore, there was no statistically significant difference between before and after thermocycling in each group except group 9. CONCLUSIONS: The different treatment methods had poor effect on the tensile bond strength. Thermocycling had poor effect on the tensile bond strength between a silicone –based liner and denture base except group9 (acrylic resin surface was modified using sandblasting followed by IBMA application).","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125992533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gummy Smile Correction Using Different Techniques","authors":"H. Ahmed, S. Saleh, M. Salim","doi":"10.21608/aadj.2018.53930","DOIUrl":"https://doi.org/10.21608/aadj.2018.53930","url":null,"abstract":"objective: To compare and evaluate two different techniques used to correct the gummy smile cases. Methods: This study was carried out upon 14 patients. The studied cases were divided into 2 groups, the first group included 7 cases were underwent intrusive technique only, the second group included 7 cases were underwent intrusive technique in addition laser assisted lip repositioning procedure. Pre-and post-treatment extraoral frontal view photographs during smile were taken and the amount of gingival displays(GD) were measured. Results & conclusion: Data of the study showed that the laser assisted lip repositioning procedures with intrusion were more effective than intrusion technique only in treatment of gummy smile cases, P<0.05.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126124491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Postoperative Pain after Irrigation Using End Vented NaviTip Tips Versus Side Vented NaviTip Tips in Teeth with Irreversible Pulpitis: A Randomized Clinical Trial","authors":"Elsaeed A. Elhafez, Amgad Soliman","doi":"10.21608/aadj.2018.53972","DOIUrl":"https://doi.org/10.21608/aadj.2018.53972","url":null,"abstract":"objectives: This clinical study was conducted to evaluate and compare the post-operative pain after the using of two different irrigation tips: end-vented NaviTip tip and double sideport NaviTip irrigator tip immediate postoperatively and 4, 12, 24 ,48,  72 hours and 7 days utilizing a numerical rating scale (NRS). Methods: 38 patients with vital lower posterior teeth without periapical radiolucency underwent one-visit root canal treatment, Root canals were prepared using NiTi ProTaper Universal rotary system then randomized into two equal gropus according to the needle used for irrigation group(A) NaviTip® 29-gauge 27 mm with End vented Tip and Group (B) NaviTip® 31-gauge 27 mm with Side vented Irrigator Tip. The needles of irrigation were penetrated 2 mm shorter than the working length. The trial design of this study is a Parallel randomized controlled trial. All demographic data, clinical and radiographic findings and modified VAS scores obtained from patients were statistically analyzed. Results: showed that there was no statistically difference between the two groups regarding the demographic data, prevalence of pre-operative pain, after 4 hours, 12 hours, 24 hours, 48 hours and 7 days. There is no statistical significance difference between End vented NaviTip and Side vented NaviTip , while in both groups there was a statistically significant decrease in pain intensity preoperatively compared with all other time periods.Conclusion:  there was a statistically significant decrease in pain intensity preoperatively compared with all other time periods","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129752154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}