AHMED ABDELWAHED YOUSSEF SHAABAN

Ahmed I. Mahrous, Waseem Mushtaha

01/07/2017

Objectives: This study was made for measuring and comparing the Retention of implant retained mandibular overdenture using resilient attachment with two different denture base materials (flexible and conventional acrylic resins). Methods/ Statistical Analysis: Twenty male patients selected for this study with completely edentulous mandible and divided according to the type of denture base material used into two equal groups, both groups received implant retained overdenture with resilient attachment. Group I; denture base made from conventional acrylic, Group II; denture base from thermo-elastic flexible acrylic, retention evaluation was made zero time, two months and four months after insertion. Findings: In this study, there was no statistical significance of difference between the groups, at time of insertion, 2 and 4 months after insertion. The highest values of retention were enlisted with the overdenture made from them oplastic acrylic resin and that may due to high inter facial surface tension recorded values of thermoplastic acrylic resin. Strong tension increase retention of the prosthesis in place. Flexible acrylic denture base showed better retention values and function than denture base made from heat cured acrylic resin material and it is agreed with another study which proved that retention values of Thermo-elastic resin was higher than conventional resin as the Thermo-elastic resins have greater flexibility, adaptation and fitting values than conventional resin. So, it has an improved retention because of inter-facial surface tension effect. Application/Improvements: Using overdenture base made of thermo-elastic acrylic resin clinically better than using overdenture base made of conventional acrylic denture base in retention and function.

AHMED ABDELWAHED YOUSSEF SHAABAN

Mahmoud M Ammar

01/01/2017

AHMED ABDELWAHED YOUSSEF SHAABAN

Hussien A Ismail , Salah A Yousief, Ahmed I Mahrous , Saleh Nasser Azzeghaiby , Dareen Aljehani

01/05/2015

Background: The purpose of this study was to evaluate clinically and radiographically median lingualized occlusion in implantretained mandibular complete overdenture. Materials and Methods: Ten completely edentulous male patients were participated in this study. Each patient received two implants in the intraforaminal area of the edentulous mandible that were left unloaded for 4 months. Patients were received conventional maxillary complete denture and implant mandibular overdenture with ball and socket attachment. The posterior teeth were set according to median lingualized occlusion scheme. All patients were evaluated clinically and radiographically immediately after denture insertion, 6 and 12 months of overdenture insertion. Results: The results revealed significant differences in probing depth, gingival index, plaque index, and marginal bone height between the different follow-up periods. With the limitation of this study, and according to the results of the mean marginal bone loss and the other peri-implant parameters after 1 year of loading. Conclusion: The implant retained overdenture with the median lingualized occlusal scheme may be recognized as being acceptable according to the general implant success rates and criteria. Key Words: Dental implant, median lingualized occlusion, overdenture

AHMED ABDELWAHED YOUSSEF SHAABAN

01/01/2015

This study was carried out to evaluate the antifungal activity of two types of nanoparticles against Candid albicans which is a major causative organism of denture stomatitis. Silver nanoparticles and copper oxide nanoparticles, incorporated in two types of acrylic resin materials used in prosthodontics, which are: heat cured thermoset denture base (vertex), and heat cured thermoelastic acrylic resin (versacryl). Three concentrations (0.1. 0.3 and 0.5%) of each nanoparticle were added to both materials and antifungal activity were tested by direct contact technique. The results showed that silver nanoparticles offered the greatest antifungal activity than copper oxide nanoparticles within limit of certain concentrations till complete inhibition of candidal growth with higher concentrations, and the antifungal activity increased by increasing the percentage of nanoparticles incorporated within the materials.

AHMED ABDELWAHED YOUSSEF SHAABAN

Ahmed I Mahrous , Hussien A Aldawash , Tarek A Soliman , Fahad H Banasr

01/01/2015

AHMED ABDELWAHED YOUSSEF SHAABAN

01/01/2014

AHMED ABDELWAHED YOUSSEF SHAABAN

01/01/2013