Prosthodontics & Occlusion · single question
What caused the mobility and bone loss around the tooth with the precision attachment?
Show answer and explanation
Correct answer: A. Distal torque forces generated by the attachment connecting to the RPD
Distal torque forces generated by the attachment In a distal-extension RPD with a rigid attachment, the denture base fulcrums around the abutment during function; the lever action transmits distal torquing forces to the abutment, causing progressive bone loss and mobility. Stress breakers and splinting adjacent teeth help reduce this effect.
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