Please select the eligibility criteria that correspond 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: Inclusion Criteria:

1. Healthy patients.
2. Age: 12-25 years old (at time of debonding).
3. Presence of all maxillary and mandibular anterior teeth, with normal shape and size.
4. Completion of a course of fixed appliance therapy involving both dental arches.
5. Subjects willing to consent to the trial and comply with the trial regime.

No restriction to presenting initial malocclusion, type of active orthodontic treatment undertaken provided that it included full fixed appliances (functional/removable appliances in combination with fixed appliances - extraction or non-extraction)

Exclusion Criteria:

1. Patients with cleft lip or palate, or both or any other craniofacial syndrome.
2. Patients who had surgical correction of the jaws: Le fort I (2- or 3-piece maxilla) or SARPE (surgically assisted rapid palatal expansion).
3. Lingual appliance treatments.
4. Periodontal disease.
5. Hypoplasia of enamel.
6. Fluorosis.
7. Active caries, restorations or fractures in the anterior teeth.
8. Patients who have had separate debonding appointments for each jaw, with a difference of more than 2 months in between.
9. Re-treated patients.
B: Inclusion Criteria:

* patients that have completed orthodontic treatment (are at stage of debonding) with fixed appliances in the upper and lower arch
* age 12- 18

Exclusion Criteria:

* systematic diseases
* craniofacial anomalies (clefts, etc)
* handicapped patients with problems of compliance
* pregnant women
* previous orthodontic treatment or compromise orthodontic treatment
C: Inclusion Criteria:

* Patients treated with fixed appliances in both the maxilla and the mandible

Exclusion Criteria:

* Rapid Maxillary Expansion (RME) for patients with severe transversal malocclusion
* Treatment with segmented appliances
* Patients with craniofacial anomalies and patients requiring orthognatic surgery
* Patients with missing mandibular incisor
D: Inclusion Criteria:

* Aged 12 to 21 years
* Planned for removable retention with Essix-type vacuum-formed retainers
* In the permanent dentition

Exclusion Criteria:

* Inability to access or peruse electronic mail
* Cleft lip and palate and other craniofacial anomalies

Answer: D