Periodontal health of anterior teeth with two types of fixed retainers.

Objective: To compare the periodontal health of maxillary and mandibular anterior teeth retained with two types of fixed retainers.

Materials And Methods: A fixed straight retainer (SR) group had 39 subjects, and a fixed wave retainer (WR) group had 35 subjects. Subjects were between the ages of 13 and 22 years and had been in fixed retention for 2 to 4 years.