[Study of the relationship between fixed orthodontic and gingivitis].
OBJECTIVE
The purpose of this study was to determine the causes of gingivitis in fixed orthodontic patients.


METHODS
The sample consisted of 114 cases, which were divided into adult group and teenage group, each group consisting of test group and control group. Gingival index(GI) was recorded for each individual patient, before fixed orthodontic appliances were inserted and the second month after insertion.


RESULTS
It was found that there was significant lower GI in adult group than in teenage group; In teenage group, the test group had significant lower GI than the control group; In adult group, there was no significant different between the test group and the control group.


CONCLUSIONS
The pilot study suggests that oral health care allowed for favorable treatment responses in gingivitis patients with fixed orthodontic appliances.
Yu
H
H
Shanghai Huangpu Dental Center, Shanghai 200002, China.
Fei
Y
Y