Why is it essential to maintain proper contacts in an interim restoration?

Maintaining proper contacts in an interim restoration is essential primarily to prevent movement and maintain occlusion. Proper contacts ensure that the interim prosthesis is stabilized within the mouth, which is crucial for the overall function of the dental arch. When contacts are appropriately established, the forces exerted during normal functions such as chewing are distributed evenly across the prosthetic and remaining natural teeth. This stability not only helps in preserving the alignment of the other teeth but also contributes to the patient's comfort and the longevity of the interim restoration.

Additionally, proper occlusal contacts prevent issues such as displacement or rocking of the interim restoration, which can lead to discomfort, impaired functionality, or even damage to surrounding teeth. Ensuring that the occlusion remains intact during the interim stage is vital, especially if definitive restorations are to follow, as it sets the stage for optimal final outcomes.

While aesthetics, ease of cleaning procedures, and reducing chair time are important considerations in interim restorations, they do not address the primary functional requirement of maintaining stability and occlusion, which is foundational to the success of any prosthetic dental work.