What is typically NOT a reason for the failure of sealants?

Normal chewing and biting forces are generally recognized as a typical function of dental activity and are not considered a reason for sealant failure. Sealants are designed to withstand the forces exerted during normal use, helping to protect tooth surfaces from decay. When correctly applied, they should remain intact despite the pressures of chewing.

In contrast, poor application techniques, using low-quality materials, or insufficient tooth preparation can directly contribute to sealant failure. A poorly applied sealant may not properly bond to the tooth surface, leading to its premature breakdown. Similarly, low-quality materials may lack the necessary durability or adhesive properties, compromising the sealant's effectiveness. Insufficient preparation of the tooth, such as inadequate cleaning or surface roughening, can prevent the sealant from forming a strong bond, making it more susceptible to failure over time.