What is the effect of saliva on sealant placement?

Saliva can significantly compromise the adhesion of dental sealants to enamel surfaces. When saliva is present during the placement of sealants, it can create a moist environment that interferes with the bond between the sealant material and the tooth structure. This is because any contaminants, including saliva, can prevent the sealant from properly adhering to the tooth, leading to a potential failure of the sealant.

To ensure proper sealant placement, it is essential to use isolation techniques, such as rubber dams or cotton rolls, to keep the area dry. These techniques help create an optimal environment for sealant adhesion, improving the effectiveness of the treatment.

The other options do not accurately reflect the impact of saliva on sealant placement. Saliva does not improve adhesion; rather, it poses a risk to the effectiveness of the sealant. Additionally, it does affect sealants in a negative way rather than having no effect or speeding up the curing process. Proper isolation from saliva during application is critical for achieving lasting results with dental sealants.