Dental OSCE (Objective Structured Clinical Examination) Practice Exam

Why are monoplane teeth recommended for patients with a lower partial denture?

1. For enhanced aesthetics

2. Due to small overbite and wide overset

3. To improve chewing efficiency

4. To facilitate speech

The correct answer is: Due to small overbite and wide overset

Monoplane teeth are recommended for patients with a lower partial denture primarily due to their design characteristics that suit the anatomical and functional requirements of these patients. When dealing with lower partial dentures, a small overbite and wide overset can significantly influence the choice of artificial teeth. Monoplane teeth are designed with a flat occlusal surface, which provides a more stable and balanced occlusion, especially when there's an absence of opposing natural teeth. This flat occlusal plane helps in distributing occlusal forces evenly, which is particularly beneficial for patients who may have a less than ideal bite relationship or when there is limited vertical space due to the dental arch shape. The stability and lack of interferences with movement in the lower jaw are crucial for patients who rely on partial dentures for effective chewing and comfort. While aesthetics, chewing efficiency, and speech are important considerations in denture design, the specific relationship of the dental arch and the position of the remaining natural teeth are primary factors that guide the decision toward using monoplane teeth in this scenario. Hence, addressing the anatomical challenges faced by patients with small overbites and wide oversets makes monoplane teeth an ideal choice for their partial denture design.