Why should primary teeth be etched for longer periods of time than adult teeth?
1)The surface of the enamel has a prism pattern that is not well structured.
2)The enamel is considered aprismatic.
3)The enamel is less resistant to deep resin tag formation.
4)There is a greater likelihood of salivary contamination during etching.

Question

Quizplus · Accepted Answer

Primary teeth should be etched for longer periods of time than adult teeth because the surface of the enamel has a prism pattern that is not well structured,and the enamel is considered aprismatic.The enamel of primary teeth is more resistant to deep resin tag formation than that of adult teeth.If saliva contamination occurs during etching,drying the surface will leave residues that will interfere with the bond.The surface must be re-etched.

Why Should Primary Teeth Be Etched for Longer Periods of Time