Implants · single question
Which type of occlusal force is LEAST concerning regarding implant failure?
Show answer and explanation
Correct answer: B. Vertical (axial) forces
- A. Oblique forces have both axial and lateral components — more damaging than purely axial forces.
- B. VERTICAL (axial) forces directed along the long axis of the implant are the LEAST concerning for implant failure. Implants are designed to optimally transmit and withstand axial compressive loads, which are distributed most favorably through the implant body to the surrounding bone.
- C. Torque/rotational forces create shear stress at the implant-bone interface — very damaging to osseointegration.
- D. Horizontal (lateral) forces create bending moments and stress concentrations at the implant-bone interface — more damaging than axial forces.