What is the primary purpose of splinting adjacent teeth in a fixed bridge?

The primary purpose of splinting adjacent teeth in a fixed bridge is to distribute the occlusal load effectively across the supporting teeth. When multiple teeth are splinted together, particularly when one or more are missing, the forces from biting and chewing can be shared more evenly among the anchored teeth. This helps to minimize stress on any single tooth, reducing the risk of overloading and potential damage, such as fractures or periodontal issues. Proper load distribution is essential in maintaining the integrity and longevity of the dental bridge as well as the health of the supporting teeth.

While options like achieving better retention, enhancing aesthetics, and reducing tooth mobility are important considerations in fixed bridge design and function, the primary concern in the context of splinting is the functional distribution of forces to ensure stability and durability of the dental restoration.