Twist removal of healed vs. nonhealed implants-a mechanical and histological study in mini pigs.

Purpose: The objective of this study was to evaluate the effect of removal torque (reverse torque) of titanium implants in peri-implant bone.

Methods: The P1-M1 teeth were extracted bilaterally of 6 mini pigs (BR-1). Each animal received 6 titanium implants, three for each side of mandible.