Dental OSCE (Objective Structured Clinical Examination) Practice Exam

Which teeth should be adjusted if occlusal adjustments are needed on dentures?

1. Upper maxillary teeth

2. Lower mandibular teeth

3. Bicuspids only

4. Front incisors only

The correct answer is: Lower mandibular teeth

When occlusal adjustments are necessary for dentures, it is crucial to focus on the alignment and contact of the lower mandibular teeth. The reason is that the mandibular arch plays a significant role in occlusion and is typically where adjustments are made to ensure a proper bite and balance in denture fit. In denture wearers, the maxillary arch is generally more static, as the mandibular teeth are responsible for functional movements such as chewing and shifting during occlusion. Adjusting the lower teeth allows the clinician to better adapt the occlusal surfaces to the opposing maxillary teeth, which can enhance stability and comfort for the patient. While it might seem relevant to adjust the upper maxillary teeth or focus only on certain sections of the mouth, the primary area of adjustment is the lower teeth since they are more actively involved in occlusal function and are essential for achieving an optimal bite relationship. Thus, the focus on the lower mandibular teeth is the most clinically relevant and beneficial approach in the context of denture adjustments.