الفهرس 
coverOnly 14 pages are availabe for public view
 |  | from | 107 |  |  |
| | | from | 107 | | |
Abstract
A strain gauge analysis study was conducted to assess and compare the stresses induced by mini implant supported and retained Kennedy class I partial overdentures on the supporting structures in comparison to stresses induced by conventional implant supported and retained Kennedy class I partial overdentures.
Two identical acrylic mandibular models representing Kennedy class I with bilateral first premolars as last abutment teeth were used for this study. The periodontal space surrounding the abutment teeth was modified to replicate the resilient features of the periodontal fibers of the teeth and also the mucosa overlying the residual ridge area.
Two mini-implants 2.4 mm in diameter and 10 mm in length with ball head design were placed in the second molar area of one model. While, two conventional implants 4 mm in diameter and 10 mm in length were placed in the second molar area of the other model. Two ball head abutments were screwed to thecorresponding conventional implants.
Two identical mandibular partial overdentures supported posteriorly by bilateral implants and anteriorly by abutment teeth were constructed.
A loading device, Universal Testing Machine was used to produce a standardized static load of 100 N between the second premolar and first molar teeth both unilaterally and bilaterally
Four channel strain meter was used to assess and record the strains induced, distal to the first premolar and mesial and distal to the implants..
Micro-strains were recorded at each site of the strain gauge attached to the model during unilateral and bilateral loading. The data were statistically analyzed.