What procedure would necessitate a longer duration for a patient to wear a provisional prosthesis?

When considering the need for a patient to wear a provisional prosthesis, the correct answer involves implants or periodontal therapy due to the complexity and required healing time associated with these procedures.

Implant placements typically involve surgery to insert the implant into the jawbone, and this area needs time to heal properly. A provisional prosthesis is often used during this healing period to ensure the patient has functional teeth and aesthetics while the implants integrate with the bone (osseointegration). This process can take several months, depending on various factors such as the bone density and overall health of the patient.

Similarly, periodontal therapy may involve surgical procedures that require a healing period before the final prosthesis can be applied. A provisional will ensure that the patient maintains comfort and function during this recovery time.

In contrast, restorative treatments, teeth whitening, and cavity fillings typically are less invasive and do not require prolonged periods of provisional use. These procedures are usually completed relatively quickly, meaning that a provisional is not necessary for an extended duration. Therefore, the complexity and healing times associated with implants and periodontal work justify the longer timeframe for wearing a provisional prosthesis.