Influence of fixed orthodontic treatment on the menstrual cycle of adult females: A prospective longitudinal study

• DOI: 10.2319/121814-922.1
• Publication Date: 2015-08-19T13:43:38Z
• Authors: Peipei Duan; Wenwen Qu; Shujuan Zou; Yangxi Chen; Hui Lan; Mauro Farella; Li Mei
• Keywords: Repeated measures design; Longitudinal Study; Menstruation

To investigate the influence of fixed orthodontic treatment on menstrual cycle, including cycle length (MCL) and duration bleeding (DMB), in adult female patients.This was a prospective longitudinal study conducted Chengdu, China. A total 164 women with normal cycles were recruited study, 79 patients undergoing 85 serving as controls. Data MCL, DMB, accompanying symptoms collected over six consecutive each participant. Student's t test, Chi-square Moses extreme reaction repeated measures analysis variance used for statistical analysis.The MCL first (T1) significantly elongated by 2.1 ± 0.5 days compared baseline (P = .003, 95% CI [-3.7, -0.5]). Variability group at T1 also greater (range, 15-46 days) than that control 24-36 < .05). No significant difference found subsequent five (T2-T6) baseline, no differences DMB or other observed throughout study.Fixed may females month after bonding, but showed effect through follow-ups.