What is the purpose of etching enamel prior to placing a sealant?

Question

Quizplus · Accepted Answer

Etching enamel prior to placing a sealant serves two purposes: to improve wetting and to clean the enamel surface. Etching creates a roughened surface for the sealant to adhere to and removes any contaminants on the enamel surface. Therefore, options A and B are correct. Option C is incorrect because etching actually makes the surface rough and irregular, not smooth and uniform.

What Is the Purpose of Etching Enamel Prior to Placing