What is a likely cause of post-cementation sensitivity following crown placement?

Post-cementation sensitivity following crown placement is often attributed to microleakage. This occurs when there is a failure of the crown-to-tooth interface, allowing bacteria, fluids, and irritants to seep in between the crown and the tooth. This leakage can irritate the pulp of the tooth, leading to sensitivity or pain.

Microleakage can result from various factors, including poor bonding of the crown material to the tooth structure or the presence of voids or gaps in the cement layer. When these gaps exist, the tooth is exposed to thermal changes and oral fluids, which can exacerbate sensitivity issues.

Understanding the role of microleakage clarifies why it is a significant concern in clinical practice. It emphasizes the importance of ensuring a good fit and proper bonding techniques when placing crowns to minimize or prevent any sensitivity the patient may experience postoperatively.