ClinicalTrials.gg
Status unknownNCT06411847Updated May 16, 2024

The Effectiveness of Virtual Appointments on Compliance With Twin Block Wear

An interventional study of Virtual appointments in Compliance, Patient, sponsored by University of Dublin, Trinity College. Status unknown at 2 sites in Ireland. Open to participants aged 10 Years to 14 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-05-16.

Sponsored by University of Dublin, Trinity College · Not applicable, Interventional, and Supportive care

The sponsor has not verified this record recently (last verified May 2024), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Nov 2023, registered May 2024).

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Phase
Not applicable
Study type
Interventional
Enrollment
62
Allocation
Randomized
Ages
10 Years to 14 Years
Sex
All
01

Study summary

The investigators aim to determine the effect of virtual appointments on compliance with Twin Block wear. Patients satisfying the inclusion criteria requiring a Twin Block appliance will be requested to participate in the study. Those selected will be allocated to either the intervention or control group. The control group will receive routine verbal instruction and a standard information leaflet at the start of their treatment. The intervention group will additionally receive virtual appointments over the initial period of treatment involving focussed discussion on twin block wear experience and use of visual aids.

Wear time will be objectively recorded in both groups using a temperature-sensitive microsensor embedded in the Twin Block appliance, and occlusal changes will be measured at each standard recall visit. A comparison of the data obtained from each group will be undertaken to determine whether there is a significant difference in compliance with twin block wear between participants who receive adjunctive virtual appointments to those who do not.

Read the detailed description

A Twin Block is a removable functional appliance commonly used in growing patients to correct a Class II malocclusion due to a combination of accelerated mandibular growth and dento-alveolar change. The Twin Block consists of two separate intersecting appliances that hold the lower jaw in a forward-postured position to correct anterior-posterior skeletal and dental relationships, thereby improving the facial profile and reducing the projection of the upper front teeth (overjet). In order to achieve these desired changes, Twin Blocks need to be worn for at least 12 hours per day. Due to the removable nature of the appliance, treatment success is reliant on patient compliance.

Compliance with twin block wear is known to be suboptimal, with non-compliance rates of up to 34% recorded in the literature. This may be attributed to several factors associated with Twin Block wear, such as lack of self-motivation, physical impairment, social concerns and forgetfulness. Virtual appointments could potentially help to address some of these issues.

Previously explored interventions to improve compliance with removable appliances include the use of calendars, known monitoring, conscious hypnosis and establishing implementation intentions. Patients have also recommended the use of visual aids, effective communication tools, positive reinforcement and reminders, all of which may be incorporated within virtual appointments, in improving compliance with Twin Block wear. The effectiveness of virtual appointments in improving Twin Block wear is yet to be assessed.

The use of remote consultation in healthcare offers potential advantages to patients, reducing travel costs and improving convenience, while also potentially enhancing cost-effectiveness and efficiency. Patients report high levels of satisfaction with virtual dental appointments related to ease of use, effectiveness and reliability. Remote communications have been employed successfully to deliver oral health advice, diagnose, monitor development, and provide behaviour guidance for paediatric patients. 'Teledentistry' has been adopted in orthodontics for remote consultations and monitoring, owing to advancements in technology, the need for social distancing during the COVID-19 pandemic, demand and convenience. Notwithstanding this, there is limited evidence available concerning its effectiveness either as a substitute to or an adjunct to conventional in-person visits.

As patients tend to over-report wear time of removable appliances, compliance is better measured objectively through the use of temperature-sensitive microsensors embedded within Twin Block appliances. These devices work by taking frequent readings of the surrounding temperature. When the temperature falls to below that of the intra-oral environment, it suggests the appliance is no longer being worn. The data collected from the sensor is interpreted through dedicated software and can be translated to the number of hours of wear per day. TheraMon® microsensors have been placed in various removable appliances to provide acceptable accuracy in measuring wear-time, with mean under-reporting of 4% and a mean difference of approximately one hour between actual and recorded wear described.

02

Conditions studied

  • Compliance, Patient

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Keywords

  • Twin Block
  • Functional Appliances
  • Compliance
03

In context

Patient Compliance

752 studies on the registry are indexed under Patient Compliance; 72 are open to participants now.

This study's planned enrollment of 62 is below the median of 116 across 527 interventional studies indexed under Patient Compliance.

Browse Patient Compliance studies →

Lead sponsor

University of Dublin, Trinity College is the lead sponsor of 73 studies on the registry; 13 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
10 Years to 14 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Males 11-14 years old, Females 10-13 years old at start of Twin Block treatment
  • Class II division 1 incisor relationship with an overjet ≥ 7mm
  • Access to a smartphone with a microphone and camera
  • Willingness to participate in the study

Exclusion criteria

Exclusion Criteria:

- Patients receiving treatment with fixed appliances in conjunction with Twin Block treatment

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
62 participants (estimated)

Study arms

  • Experimental
    Virtual Appointment Group

    This group will receive additional virtual appointments as an adjunct to standard care

    Behavioral: Virtual appointments

  • No intervention
    Control Group

    The group will receive standard Care

Interventions

  • BehavioralVirtual appointments

    This group will receive the same information as the control group with additional virtual appointments at 1 week, 2 weeks and 6 weeks after fitting a Twin Block appliance. These will be scheduled and held via BlueEye Clinic (RedZinc Services Ltd.), a web-based GDPR compliant platform that allows patients to access a remote video consultation via a link sent to the participant/parent's device. The content of these appointments will follow a template that addresses the patient's experience, difficulties faced and how to overcome these, and would incorporate use of visual aids to highlight expected changes over the duration of wear. The appointments would be held in the late afternoons (after school).

    Also known as: Remote consultations

06

What researchers measure

Primary outcomes

  1. Wear Time

    Wear time in minutes will be recorded by a Theramon® microsensor (Handelsagentur Gschladt, Hargelsberg, Austria, or Forestadent, Pforzheim, Germany) embedded in the maxillary appliance, supplemented with a self-completed wear chart.

    Time frame: Data will be collected at standard in-person recall visits at 1 month, 3 month and 6 months.

Secondary outcomes

  1. Occlusal change

    Measurement of overjet in millimetres

    Time frame: Data will be collected at standard in-person recall visits at 1 month, 3 month and 6 months.

07

Study locations

2 of 2 sites recruiting
  • HSE Orthodontic Unit, Loughlinstown
    Dublin, Ireland
    Recruiting
  • HSE Orthodontic Unit, Tallaght
    Dublin, Ireland
    Recruiting
08

References and documents

Publications

  • Brierley CA, Benson PE, Sandler J. How accurate are TheraMon(R) microsensors at measuring intraoral wear-time? Recorded vs. actual wear times in five volunteers. J Orthod. 2017 Dec;44(4):241-248. doi: 10.1080/14653125.2017.1365220. Epub 2017 Aug 22. PubMed 28826346 ↗
  • Al-Moghrabi D, Salazar FC, Pandis N, Fleming PS. Compliance with removable orthodontic appliances and adjuncts: A systematic review and meta-analysis. Am J Orthod Dentofacial Orthop. 2017 Jul;152(1):17-32. doi: 10.1016/j.ajodo.2017.03.019. PubMed 28651764 ↗
  • Park JH, Kim JH, Rogowski L, Al Shami S, Howell SEI. Implementation of teledentistry for orthodontic practices. J World Fed Orthod. 2021 Mar;10(1):9-13. doi: 10.1016/j.ejwf.2021.01.002. Epub 2021 Feb 25. PubMed 33642260 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Nov 2023 (actual). Primary completion is estimated for Jun 2025, 19 months after the start.

Of 224 non-industry interventional studies with no phase under Patient Compliance, half reached primary completion within 20 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 38. This study's planned 19 months is close to that.

Counting every sponsor, half of 237 studies reached it within 20 months; a quarter within 9 and three quarters within 38.

How these figures are worked out, and which studies are left out of them.

Registered
May 3, 2024
First posted
May 13, 2024
StartActual
Nov 21, 2023
Primary completionEst.
Jun 2025
CompletionEst.
Sep 2025
Last update
May 16, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 16, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06411847
Lead sponsor
University of Dublin, Trinity College
Collaborators
Dublin Dental University Hospital
Responsible party
Abeer Hasan (Specialist Registrar in Orthodontics, University of Dublin, Trinity College) — Principal investigator
First posted
May 13, 2024
Start date
Nov 21, 2023
Primary completion
Jun 2025 (estimated)
Completion
Sep 2025 (estimated)
Last update
May 16, 2024

Study contacts

Abeer A Hasan
Contact
abeer.hasan@dental.tcd.ie
+353-1-6127200

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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