Efficacy of Using 3D Motion Tracking Toothbrush in Dental Plaque Control

Not Applicable

Completed

• Conditions: Toothbrushing
• Interventions: Device: Conventional toothbrush; Device: The smart toothbrush and smart mirror (STM) system (XiuSolution, Gyeonggi-do, Korea)

• Registration Number: NCT04627324
• Lead Sponsor: Yonsei University

Brief Summary

The objective of this study was to compare the efficacy of computer-assisted TBI (toothbrushing instruction) using a smart toothbrush and smart mirror (STM system) in plaque control to that of conventional TBI.

Detailed Description

The STM system comprises a smart mirror, which is integrated into a computer monitor, and a 3D motion-capture device inside of a modified toothbrush holder. The computer program displays a toothbrushing animation in the mirror. Toothbrush motions detected by sensors embedded inside the holder are captured and sent to the server for analysis.

The investigators evaluated the efficacy of TBI with a STM system by analyzing the reductions of the modified Quigley-Hein plaque index in

1. st study - 60 volunteers (adults) - The data for which have been published (reference)

2. nd study - 42 volunteers (schoolchildren) - manuscript prepared

3. rd study - 60 volunteers (adults and children)

These participants were separated randomly into two groups: conventional TBI (control group) and STM system TBI (experimental group).

The changes in the plaque indexes were recorded immediately, 1 week, 1 month, and 10 months (1st study only) after TBI.

Study Timeline

• Study Start: 2008-09-01
• Primary Completion: 2011-08-01
• Study Completion: 2011-08-01
• Status Verified: 2020-11
• Study First Submitted: 2020-11-02
• Study First Submitted QC: 2020-11-06
• Last Update Submitted: 2020-11-12
• Study First Posted: 2020-11-13
• Last Update Posted: 2020-11-17

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 209

Inclusion Criteria

• Participants with poor oral conditions need more toothbrush instruction
• Participants were required to have their gingivitis and baseline plaque scores >1.5 (the Turesky Modification of the Quigley-Hein index)

Exclusion Criteria

• if they had gross dental caries or orthodontic appliances, or were medically compromised.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
conventional toothbrushing instruction (TBI)	Conventional toothbrush	Participants received using conventional TBI. The plaque indexes were evaluated at baseline, immediately after TBI (day 0), 1 week, 1 month and 10 month (1st study only) after TBI.
The smart toothbrush and smart mirror (STM) system toothbrushing instruction (TBI)	The smart toothbrush and smart mirror (STM) system (XiuSolution, Gyeonggi-do, Korea)	Participants received using the STM system TBI. The plaque indexes were evaluated at baseline, immediately after TBI (day 0), 1 week, 1 month and 10 month (1st study only) after TBI.

Primary Outcome Measures

Name	Time	Method
Change from Baseline in plaque index at 1 month after TBI (3rd study-adults and children)	Baseline, immediately after TBI (day 0), 1 week, 1 month after TBI.	The effects of smart toothbrush and smart mirror (STM) system TBI and conventional TBI on dental plaque in adults and children were compared in this study.; Plaque examination was scored on the buccal and lingual surface of all teeth (if a permanent tooth had not erupted yet, the primary tooth in the corresponding area was tested).; The Turesky Modification of the Quigley-Hein index was scored between 0 (no plaque) and 5 (plaque covering ≥ two-thirds of the tooth crown) The percentages of plaque removal at each surfaces and whole mouth were determined with the formula: percentage plaque reduction = pre-post / pre X100 (pre=prebrushing plaque value; post=postbrushing plaque value).
Change from Baseline in plaque index at 10 month after TBI (1st study-adults)	Baseline, immediately after TBI (day 0), 1 week, 1 month and 10 month after TBI.	The effects of smart toothbrush and smart mirror (STM) system TBI and conventional TBI on dental plaque in adults were compared in this study.; Plaque examination was scored on the buccal and lingual surface of all teeth. The Turesky Modification of the Quigley-Hein index was scored between 0 (no plaque) and 5 (plaque covering ≥ two-thirds of the tooth crown) The percentages of plaque removal at each surfaces and whole mouth were determined with the formula: percentage plaque reduction = pre-post / pre X100 (pre=prebrushing plaque value; post=postbrushing plaque value).
Change from Baseline in plaque index at 1 month after TBI (2nd study-schoolchildren)	Baseline, immediately after TBI (day 0), 1 week, 1 month after TBI.	The effects of smart toothbrush and smart mirror (STM) system TBI and conventional TBI on dental plaque in schoolchildren were compared in this study.; Plaque examination was scored on the buccal and lingual surface of all teeth (if a permanent tooth had not erupted yet, the primary tooth in the corresponding area was tested).; The Turesky Modification of the Quigley-Hein index was scored between 0 (no plaque) and 5 (plaque covering ≥ two-thirds of the tooth crown) The percentages of plaque removal at each surfaces and whole mouth were determined with the formula: percentage plaque reduction = pre-post / pre X100 (pre=prebrushing plaque value; post=postbrushing plaque value).