Minnesota LDA State Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The most common cause of sealant loss is moisture contamination during placement. This occurs when saliva or water interfere with the adhesion of the sealant to the tooth surface. For a sealant to effectively bond, the tooth must be dry and free from any contaminants. If moisture is present, it can create a barrier that prevents proper adhesion, leading to early failure of the sealant as it may not hold in its intended place.

Inadequate placement technique and failure to etch enamel can also contribute to sealant loss, but they are less frequently identified as the primary causes. Incorrect sealant material can affect the performance of the sealant, but moisture contamination is a more significant and frequent issue that dental professionals encounter during the application process. Ensuring a clean and dry surface is crucial for the longevity and effectiveness of dental sealants.