Which condition is an extraoral factor that must be considered before recommending a removable prosthesis for a patient?

• A. Occlusal wear
• B. Motivation
• C. Oral cancer history
• D. Tobacco use

Answer: (B)

Motivation to wear and care for the appliance is the key factor because a removable denture succeeds mainly through patient compliance. If the patient is committed to wearing the prosthesis as prescribed, performing daily cleaning, handling adjustments, and attending follow-up visits, the denture will function more reliably, comfort will improve, and tissue health will be better preserved. Conversely, even a well-made denture can fail if the patient isn’t motivated to use it consistently, neglects hygiene, or skips adjustments, leading to irritation, poor fit, or accelerated bone changes over time.

Occlusal wear describes the current condition of the teeth and occlusion and mainly guides design and balancing considerations during fabrication, not the patient’s willingness to use the prosthesis. Oral cancer history and tobacco use are important medical factors that can influence mucosal health and healing, but they do not by themselves determine whether a patient will accept and maintain a removable appliance. Motivation remains the strongest predictor of successful outcomes.