Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Evaluation of the Effect of Tailored Electronic Reminders on Compliance With Removable Orthodontic Retention: A Randomised Controlled Trial
Brief Summary: Participants will be recruited for inclusion at a routine adjustment appointment prior to planned removal of the appliances. Following removal of the appliances, consenting participants will be randomly allocated to one of two groups by computer-generated random allocation. Allocation will be concealed from the treating clinician using of an opaque sealed envelope system. Standard stone model records will be available for all participants following removal of the appliances (T0).

Participants in both groups will have follow-up scheduled for 3 (T1), 6 (T2) and 12 (T3) months following removal of the braces. All participants will be instructed to wear standard clear, plastic (Essix-type) retainers on a full-time basis for 6 months, followed by night-time wear for a further 6 months. A micro-electronic timer will be integrated within the upper Essix-type retainer. All participants will be given standard advice at each recall visit.

Participants in the intervention group will receive tailored electronic reminders in the form of a mobile application. The frequency and content of the reminders will be informed by qualitative interviews involving participants from an allied trial, and from posts related to orthodontic retainers shared on social media. Instructions on the necessary duration of retention, maintenance of retainers, departmental details, allied to advice on appropriate management for appliance breakages, and delineation of the implication of suboptimal retainer wear will be included. Also, information related the debond visit and maintenance of optimal oral hygiene levels will be incorporated in the mobile application. Participants in the control group will not receive additional reminders. Treating clinicians will be kept blind to the study group.

All patients failing an appointment will be sent another. Those wishing to withdraw from the trial may do so at any point without affecting continuing care with records taken at the point of withdrawal from the study with data analysis on an intention to treat basis.

Thereafter, patient experiences with electronic reminders will be evaluated on a subset of participants using one-to-one interviews.


Options:
A: Arm Label: CAD/CAM; Type: EXPERIMENTAL; Interventions: Other: Bonding of either CAD/CAM or conventional multistranded stainless steel fixed retainer | Arm Label: Conventional multistranded; Type: ACTIVE_COMPARATOR; Interventions: Other: Bonding of either CAD/CAM or conventional multistranded stainless steel fixed retainer | Intervention Type: OTHER; Name: Bonding of either CAD/CAM or conventional multistranded stainless steel fixed retainer; Assigned to Arm(s): CAD/CAM, Conventional multistranded
B: Arm Label: Thermoplastic Retainer; Type: EXPERIMENTAL; Interventions: Other: orthodontic appliance | Arm Label: Hawley Retainer; Type: ACTIVE_COMPARATOR; Interventions: Other: orthodontic appliance | Intervention Type: OTHER; Name: orthodontic appliance; Assigned to Arm(s): Hawley Retainer, Thermoplastic Retainer
C: Arm Label: Group A: CTC retainer + Essix retainer; Type: EXPERIMENTAL; Interventions: Device: CTC retainer, Device: Essix retainer maxilla, Procedure: Alginate impression, Other: Questionnaire | Arm Label: Group B: Essix retainer + Essix retainer; Type: ACTIVE_COMPARATOR; Interventions: Device: Essix retainer maxilla, Device: Essix retainer mandible, Procedure: Alginate impression, Other: Questionnaire | Intervention Type: DEVICE; Name: CTC retainer; Assigned to Arm(s): Group A: CTC retainer + Essix retainer | Intervention Type: DEVICE; Name: Essix retainer maxilla; Assigned to Arm(s): Group A: CTC retainer + Essix retainer, Group B: Essix retainer + Essix retainer | Intervention Type: DEVICE; Name: Essix retainer mandible; Assigned to Arm(s): Group B: Essix retainer + Essix retainer | Intervention Type: PROCEDURE; Name: Alginate impression; Assigned to Arm(s): Group A: CTC retainer + Essix retainer, Group B: Essix retainer + Essix retainer | Intervention Type: OTHER; Name: Questionnaire; Assigned to Arm(s): Group A: CTC retainer + Essix retainer, Group B: Essix retainer + Essix retainer
D: Arm Label: Receive electronic reminder; Type: EXPERIMENTAL; Interventions: Other: Electronic reminder | Arm Label: Control group; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: OTHER; Name: Electronic reminder; Assigned to Arm(s): Receive electronic reminder

Answer: D