TY  - BOOK
AU  - Moaz Mostafa Ahmed Farrag
AU  - Doaa Amr Ahmed , 
AU  - Hamdy Aboelfotouh , 
TI  - Stress analysis for the mandibular screw-retained full arch prosthesis with different cantilever extension (3D finite element analysis) / 
PY  - 2020///
CY  - Cairo : 
PB  - Moaz Mostafa Ahmed Farrag , 
KW  - 3D finite element analysis
KW  - Cantilever extension
KW  - Mandibular screw-retained
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics; Issued also as CD
N2  - Aim: to accomplish a comparative study between different cantilever lengths regarding the stress distribution in mandibular implant- supported fixed restoration by using finite element analysis, and assessment of stress distribution in Bone/implant interface in different zone of force applied while comparing two different prosthetic materials, PFM and acrylic screw retained fixed restorations.Methodology : Three-dimensional models simulated a clinical situation where an edentulous mandible was restored by two different treatment options using implant retained fixed restorations.The screw-retained fixed restorations were supported by four implants ; two at lateral incisors region and two at first pre-molars area.Two different restoration materials were tested; porcelain fused to metal (PFM), and Acrylic resin screw-retained fixed restorations. The load was vertically applied of value of 100N at first molars and 50N second premolars bilaterally.Results: With moving the site of load application away from the posterior implant , total deformation and Von Misses stresses of implants,screws and multi-unit abutments decreased , while the stresses on the peri-implant bone and mucosa increased, the screw-retained fixed restoration recorded high values of stresses with increasing the cantilever length
UR  - http://172.23.153.220/th.pdf
ER  -