Dental OSCE (Objective Structured Clinical Examination) Practice Exam

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What is the primary function of U-shaped major connectors in dental prosthetics?

Retention
Flexibility
Reciprocation
Rigidity

The correct answer is: Rigidity

The primary function of U-shaped major connectors in dental prosthetics is to provide rigidity to the entire prosthesis. These connectors serve as a structural framework that connects various components of the denture, such as the plates and the clasps. The rigid design helps distribute occlusal forces evenly across the remaining teeth and soft tissues, thereby enhancing the overall stability of the prosthesis during function. A U-shaped configuration specifically allows for adequate spacing and contact with the underlying tissues, which helps in maximizing the retention of the denture while ensuring comfort for the patient. It also aids in preventing warping or distortion of the structure, which is crucial for the longevity and function of the dental prosthetic. In essence, rigidity provided by the U-shaped major connectors is fundamental for the durability and performance of the prosthetic device.