Patient compliance with Hawley retainers fitted with the SMART^®sensor:A prospective clinical pilot study

Abstract

Objective: To evaluate the compliance of patients while wearing maxillary Hawley retainers embedded with SMART microsensors. Methods: The sample population consisted of 22 patients who were divided into an experimental (group A) and a control group (group B). Group A was informed that they would be monitored through the use of SMART microsensors, while group B was not informed that they would be monitored. After the delivery of the retainers (T0), the patients were evaluated at T1 and T2, represented by 6-and 12-week follow-up visits, respectively. At T1, group B was informed of our ability to monitor their compliance. Both groups continued wearing their retainers during T1 to T2. Results: During T0-T1, Group A wore their retainers for an average of 16.3 hours (SD 4.39), while group B wore their appliances for an average of 10.6 hours (SD 5.36, t 5 2.426, P 5 .027). Although group B increased their retainer wear by 0.5 hours/day from T1 to T2, this increase was not statistically significant. Conclusions: Despite significant differences being noted between the two groups at T1, group B did not show significant mean changes in their wear time before and after becoming aware of the use of the SMART microsensor. (Angle Orthod. 2015;85:263-269.)

A feasible method to improve adherence of Hawley retainer in adolescent orthodontic patients: a randomized controlled trial

“… 27 , 28 The median wear time was 12.4 hours per day in Group A, which is higher than in previous studies. 29 , 30 This could be because of differences in the study population and timing methods. Previous research has suggested that subjective factors could result in overestimation of compliance, and patients’ feedback about retainer wear time tends to be subjective; 31 therefore, future studies should incorporate the use of an objective instrument to measure retainer compliance.…”

Compliance monitoring via a Bluetooth‐enabled retainer: A prospective clinical pilot study

“…During the trial, one of the devices malfunctioned shortly after delivery to the subject and a new device was processed and delivered. Malfunctioning of similar compliance monitoring retainer devices has been reported in the literature, and the manufacturers’ advise that parafunction such as grinding or vibration can cause failure . In a prospective study by Hyun et al, 4 out of 22 subjects were lost due to device malfunction.…”

“…In a prospective study by Hyun et al, 4 out of 22 subjects were lost due to device malfunction. In another study by Ackerman and Thornton, 1 out of the 23 subjects in their study was lost due to device malfunction . This error highlighted the need to test each device prior to final retainer processing and for improved quality control in the device manufacturing.…”

Users’ perceptions and preferences towards maxillary removable orthodontic retainers: a crossover randomized clinical trial

“…Furthermore, all models were used in the beginning, middle, and end of the research, to minimize any possible influence. Additionally, the daily time of use was not controlled with questionnaires or chips embedded in the appliances, 25 to reproduce the clinical routine, which usually does not include such protocols.…”