Dental OSCE (Objective Structured Clinical Examination) Practice Exam

Which factor is least likely to influence the integrity of an RPD design?

1. Patient's age

2. Remaining tooth structure

3. Presence of plaque

4. Type of denture material used

The correct answer is: Patient's age

The integrity of a removable partial denture (RPD) design can be significantly influenced by various factors, but the age of the patient is typically not one of the most critical aspects affecting the RPD's integrity. When considering factors like the remaining tooth structure, it plays a crucial role in determining how well the prosthesis can be retained and supported. Healthy, strategically positioned teeth can provide necessary support for the denture, whereas compromised teeth may lead to issues in the fit and function of the RPD. The presence of plaque is another vital variable because it directly influences oral health. High plaque levels can lead to periodontal disease, which can ultimately affect the stability of the teeth supporting the RPD. Poor maintenance of oral hygiene can therefore play a significant role in the longevity and effectiveness of the denture. Furthermore, the type of denture material used has a direct impact on the durability, function, and comfort of the RPD. Materials vary in their physical properties, such as strength and flexibility, which can affect how the denture interacts with the remaining natural structures in the mouth. In contrast, while a patient’s age may affect general health and dental treatment decisions, it has a lesser direct impact on the structural integrity of the RPD itself.