Abstract
STATEMENT OF PROBLEM
The application of a simple, clinically applicable noninvasive test to assess implant stability are considered highly desirable. So far there is still a controversy about correlation of various tests and implant stability.
PURPOSE
In order to assess implant stability, the development of a new method is critical. It's possible to assess implant stability by calculating energy and angular momentum during implant installation. The purpose of this study is to evaluate the correlation of energy and implant stability.
MATERIAL AND METHODS
Twenty three implants were installed in two different types of pig bone. Type I bone was retrieved from the distal aspect of the rib, with more cortical bone. Type II bone came from a more proximal region with less cortical components and a higher content of bone marrow and spongeous trabeculae. Insertion torque, removal torque, ISQ values and angular momentum and energy were measured. Pearson Correlation test was done to analyze the relation between RFA, maximum insertion torque, mean insertion torque, bone type, energy and removal torque.
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Table I.
Table III.
RFA | Max. IT | Mean IT | Energy | ||
---|---|---|---|---|---|
RFA | Pearson Correlation | 1 | .783∗∗ | .795∗∗ | .789∗∗ |
Sig. (2-tailed) | .000 | .000 | .000 | ||
N | 23 | 23 | 23 | 23 | |
Max.IT | Pearson Correlation | .783∗∗ | 1 | .985∗∗ | .986∗∗ |
Sig. (2-tailed) | .000 | .000 | .000 | ||
N | 23 | 23 | 23 | 23 | |
Mean IT | Pearson Correlation | .795∗∗ | .985∗∗ | 1 | .989∗∗ |
Sig. (2-tailed) | .000 | .000 | .000 | ||
N | 23 | 23 | 23 | 23 | |
Energy | Pearson Correlation | .789∗∗ | .986∗∗ | .989∗∗ | 1 |
Sig. (2-tailed) | .000 | .000 | .000 | ||
N | 23 | 23 | 23 | 23 |