Dental OSCE (Objective Structured Clinical Examination) Practice Exam

To achieve proper vertical dimension in immediate dentures, which teeth are preserved?

1. All maxillary incisors

2. 12 and 21

3. All canine teeth

4. All molars

The correct answer is: 12 and 21

The correct answer, preserving the maxillary lateral incisors specifically identified as teeth 12 and 21, is important when considering the vertical dimension in immediate dentures. This is because the lateral incisors play a key role in maintaining anterior aesthetics and functional occlusion. By preserving these specific teeth, clinicians can better assess and maintain the natural occlusal relationship and vertical dimension required for the patient when the immediate dentures are fabricated. In terms of preserving the vertical dimension, lateral incisors contribute to the overall oral landscape, allowing for a more natural bite and preventing undue stress or misalignment in the remaining dentition and prosthesis. Retaining them aids in achieving a functional and aesthetic result, which is crucial for patient comfort and satisfaction. The preservation of other teeth such as all maxillary incisors or canine teeth may not provide the same benefit in vertical dimension stability as the specific lateral incisors denoted in this option, and preserving all molars may not necessarily address the specific needs for immediate dentures in the context of vertical dimension.