Question

fluoride treatment strengthens the _______ of the teeth.
a enamel
b dentin
c pulp
d periodontal membrane

Explanation:

Fluoride treatment is known to strengthen the enamel of the teeth. Enamel is the outermost, hard protective layer of teeth, and fluoride helps in remineralizing it, making it more resistant to decay. Dentin is the layer beneath enamel, pulp is the inner soft tissue, and the periodontal membrane supports the tooth in the socket—fluoride does not primarily strengthen these.

Answer:

A. enamel