Comparison of the Effect of Four Different Abutment Screw Torques on Screw Loosening in Single Implant-Supported Prosthesis after the Application of Mechanical Loading

Table 3

Mean percentage of torque loss in the study groups.

Group	Mean	SD	value
1	10.6	4.4	<0.001
2	16.7	3.9
3	16.4	2.4
4	20.6	3.6