The role of the headgear calendar in headgear compliance.

This study was undertaken to determine the role of the headgear calendar and its relationship to headgear compliance. Headgear timers were used covertly to monitor actual headgear wear of 28 patients for three consecutive orthodontic appointments. Fourteen patients were asked to monitor their daily headgear wear by using a headgear calendar. The other 14 did not use a calendar. The results show that patients who monitor their headgear wear with a headgear calendar are more compliant than those patients who do not (7.9 hours compared with 5.3 hours). All age groups in this study wore their headgear more when a headgear calendar was used with the exception of the > 16-year-old group. There is a high degree of correlation (r2 = 0.60) between the number of hours recorded on the calendar compared with the number of hours actually worn. There was a poor correlation (r2 = 0.02) between the number of hours the patient said he wore his headgear compared with the actual number of hours worn.