Optimizing Aligner Wear Time and Change Frequency

Optimizing Aligner Wear Time and Change Frequency: A Single-Blind, Randomized Control Trial

This study aims to help improve individualization and optimization of clear aligner therapy through the use of new technologies in orthodontics. The study will compare 12-hour and 22-hour tray wear time and evaluate the adjunctive use of Vpro+. The study clinicians will use Dental Monitoring to monitor study participants throughout the trial and will use the Dental Monitoring system to instruct patients to continue or stay on their clear aligners. The outcome of the study will be the time it takes to complete 10 trays.

Study Overview

• Status: Unknown
• Conditions: Adjunctive Usage of Vibrational Therapy; Dental Monitoring Accuracy
• Intervention / Treatment: Device: Dental Monitoring assisted aligner change, 12-hour tray wear time and VPro+ are the interventions for the trial.

• Study Type: Interventional
• Enrollment (Anticipated): 85
• Phase: Not Applicable

Contacts and Locations

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Male and female subjects ages 18-65 years of age with complete adult dentition, with Class I malocclusion or mild Class II/III malocclusions who are currently in treatment.
• Subjects who do not have systemic diseases that affect orthodontic tooth movement such as patients who are using hormone replacement medications, bone diseases such as osteoporosis or hyper/hypo-thyroidism
• Periodontal probing depths (PD) < 4mm, gingival index (GI) ≤1, and plaque index (PI) ≤1
• Patients currently in orthodontic treatment with Invisalign who are currently changing their trays every 7 - 10 days
• Participant must have a smartphone that is capable of downloading and storing the Dental Monitoring application
• Participants must be able to master the use of the Dental Monitoring Application

Exclusion Criteria:

Inclusion:

• Male and female subjects ages 18-65 years of age with complete adult dentition, with Class I malocclusion or mild Class II/III malocclusions who are currently in treatment.
• Subjects who do not have systemic diseases that affect orthodontic tooth movement such as patients who are using hormone replacement medications, bone diseases such as osteoporosis or hyper/hypo-thyroidism
• Periodontal probing depths (PD) < 4mm, gingival index (GI) ≤1, and plaque index (PI) ≤1
• Patients currently in orthodontic treatment with Invisalign who are currently changing their trays every 7 - 10 days
• Participant must have a smartphone that is capable of downloading and storing the Dental Monitoring application
• Participants must be able to master the use of the Dental Monitoring Application

Exclusion:

• Subjects who have within the last 6 mo taken any antibiotic medications or have had any periodontal treatments
• Subjects who have taken/are taking medications that affect bone remodeling: anti-resorptive medications, medications that may affect hormone levels, thyroid replacement medications, corticosteroids, and daily nonsteroidal anti-inflammatory medications
• Subjects who have had chemotherapy or radiation therapy in the last 6 mo
• Subjects who present with severe class II/III malocclusions
• Subjects who present with class I malocclusions but have severe crowding (> 7 mm) that requires extraction, >4 mm positive overjet and > 2 mm negative overjet, extreme deep bite ( > 90%), severe open bite (>2 mm)
• Women who are pregnant
• Patients that smoke
• Patients with active caries
• Patients that require interproximal reduction or attachments in the remaining prescription
• Patients who have temporary anchorage devices in place
• Patients who have vertigo or issues with their temporomandibular joint
• Patients with less than 3 mo. remaining in aligner treatment
• Patients who have documented bruxism

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

5

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Group 1; 22-hour tray wear time, DM assisted aligner change frequency
Active Comparator: Group 2; 22-hour tray wear time, VPro+ (active), DM assisted aligner change frequency	Device: Dental Monitoring assisted aligner change, 12-hour tray wear time and VPro+ are the interventions for the trial.; The current standard of care for clear aligner use as suggested by Invisalign is unclear as to how frequently aligners should be changed. We suspect that the frequency for aligner change as determined by the orthodontist using Dental Monitoring will be variable for every participant. Vpro+ is an adjunctive therapeutic tool for clear aligner treatment. It is proposed to deliver high frequency vibrations to reduce treatment time and pain associated with clear aligners. Align Technology suggests 22-hour wear time for clear aligner therapy. Participants in two arms of the study will be asked to wear the trays for about half the recommended wear time to assess whether night-time aligner wear will be sufficient for successful treatment.
Sham Comparator: Group 3; 22-hour tray wear time, VPro+ (inactive), DM assisted aligner change frequency	Device: Dental Monitoring assisted aligner change, 12-hour tray wear time and VPro+ are the interventions for the trial.; The current standard of care for clear aligner use as suggested by Invisalign is unclear as to how frequently aligners should be changed. We suspect that the frequency for aligner change as determined by the orthodontist using Dental Monitoring will be variable for every participant. Vpro+ is an adjunctive therapeutic tool for clear aligner treatment. It is proposed to deliver high frequency vibrations to reduce treatment time and pain associated with clear aligners. Align Technology suggests 22-hour wear time for clear aligner therapy. Participants in two arms of the study will be asked to wear the trays for about half the recommended wear time to assess whether night-time aligner wear will be sufficient for successful treatment.
Active Comparator: Group 4; 12-hour tray wear time, VPro+ (active), DM assisted aligner change frequency	Device: Dental Monitoring assisted aligner change, 12-hour tray wear time and VPro+ are the interventions for the trial.; The current standard of care for clear aligner use as suggested by Invisalign is unclear as to how frequently aligners should be changed. We suspect that the frequency for aligner change as determined by the orthodontist using Dental Monitoring will be variable for every participant. Vpro+ is an adjunctive therapeutic tool for clear aligner treatment. It is proposed to deliver high frequency vibrations to reduce treatment time and pain associated with clear aligners. Align Technology suggests 22-hour wear time for clear aligner therapy. Participants in two arms of the study will be asked to wear the trays for about half the recommended wear time to assess whether night-time aligner wear will be sufficient for successful treatment.
Sham Comparator: Group 5; 12-hour tray wear time, VPro+ (inactive), DM assisted aligner change frequency	Device: Dental Monitoring assisted aligner change, 12-hour tray wear time and VPro+ are the interventions for the trial.; The current standard of care for clear aligner use as suggested by Invisalign is unclear as to how frequently aligners should be changed. We suspect that the frequency for aligner change as determined by the orthodontist using Dental Monitoring will be variable for every participant. Vpro+ is an adjunctive therapeutic tool for clear aligner treatment. It is proposed to deliver high frequency vibrations to reduce treatment time and pain associated with clear aligners. Align Technology suggests 22-hour wear time for clear aligner therapy. Participants in two arms of the study will be asked to wear the trays for about half the recommended wear time to assess whether night-time aligner wear will be sufficient for successful treatment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Time to complete 10 trays to determine the average aligner change frequency measured at the completion of the study	70-140 days

Collaborators and Investigators

• Sponsor: Harvard School of Dental Medicine

Study record dates

Study Major Dates

• Study Start (Anticipated): March 1, 2020
• Primary Completion (Anticipated): November 1, 2020
• Study Completion (Anticipated): March 1, 2021

Study Registration Dates

• First Submitted: February 5, 2020
• First Submitted That Met QC Criteria: February 5, 2020
• First Posted (Actual): February 7, 2020

Study Record Updates

• Last Update Posted (Actual): February 17, 2020
• Last Update Submitted That Met QC Criteria: February 13, 2020
• Last Verified: February 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: IRB19-0644

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No