A sufficient amount of healthy tooth structure is essential for the successful placement of a dental crown. While the ideal scenario involves maximal preservation of natural tooth, the necessary amount can vary depending on factors such as the extent of decay or damage, the location of the tooth, and the material of the crown itself. For example, a small cavity might require minimal removal, while a severely fractured tooth may necessitate more significant reduction to provide adequate support and retention.
Preserving as much healthy tooth structure as possible is crucial for the long-term success of a crown. Adequate tooth structure provides stability, reduces the risk of complications like fracture or dislodgement, and helps ensure a proper fit. Historically, crown preparations often involved significant tooth reduction. However, advancements in dental materials and techniques now allow for more conservative preparations, maximizing the preservation of natural tooth tissue.