Safety and Efficacy of the ToothWave Power Toothbrush for Extrinsic Stain Reduction

Study Overview
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Brief Summary
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This study is a single blind, prospective study aimed to evaluate the safety and efficacy of the Silk'n ToothWave Power Toothbrush for stains reduction and improvement of teeth shade.

Detailed Description
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The study includes 84 treatment sessions, twice a day, and 4 clinic visits over a period of 6 weeks. One treatment group (Silk'n power toothbrush - ToothWave) and 1 control group (an ADA approved power toothbrush (PTB)) will participate in the study. For each patient, efficacy assessment data will be collected at baseline, 4 weeks, and at 6 weeks. The average stain data will be calculated for each group. Treatment is defined as a timed, 2 minute brushing of the teeth according to the manufactur-er's instructions, twice daily (morning and evening). Brushing will be undertaken using the Silk'n toothbrush and standard fluoride toothpaste. The control group will use an ADA ac-cepted PTB and the same standard fluoride toothpaste.

Official Title
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Safety and Efficacy of the ToothWave Power Toothbrush for Extrinsic Stain Reduction

Conditions
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Tooth Discoloration

Intervention / Treatment
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* Device: ToothWave
* Device: powered toothbrush


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult subjects aged 18-70, that are in good health. Subjects should have notable extrinsic dental stains on the front teeth with a total extrin-sic facial tooth stain score ≥14 according to the LSI. The subjects should understand the information provided about the investigative nature of the treatment, possible benefits and side effects. Subjects will sign the Informed Consent Form. The subjects should be willing to comply with the study procedure and schedule, includ-ing the follow up visits, and will refrain from using any other teeth whitening technologies during this period. The subject did not perform any procedure for teeth whitening (either at home or in clin-ic) at least 3 years prior to participating in the study Exclusion Criteria: Any condition that might make it unsafe for the subject to participate in the study, at the discretion of the investigator Pacemaker or internal defibrillator, or any other active electrical implant anywhere in the body. Pregnant or nursing by subject report. Any active condition in the oral cavity at the discretion of the investigator. Any surgery in the treated area within 3 months prior to treatment, or before complete healing. Subjects that do not brush regularly. Regular tobacco smokers.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Double arm, single blind prospective study
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Treatment - toothwave brush<br>Subjects using the Silk'n ToothWave RF utilizing toothbrush | Device: ToothWave<br>* RF-utilizing powered toothbrush for teeth whitening<br>* Other names: RF toothbrush;|
| Sham Comparator: Control - powered toothbrush<br>Subject using a regular powered toothbrush with no RF. | Device: powered toothbrush<br>* regular powered toothbrush with no RF<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Extrinsic Stains | Extrinsic Stains will be evaluated using the validated Lobene Stain Index (LSI) Stain Intensity score range is between 0 and 3, where: 0 = no stain = light stain = moderate stain = heavy stain The mean stain intensity will be calculated for both the gingival and body regions of the incisor teeth for each subject. Stain Area score rage is between 0 and 3, where: 0 = no stain = stain covering up to one third of region = stain covering up to two thirds of region = stain covering more than two thirds of region The mean stain area will be calculated for both the gingival and body regions of the incisor teeth for each subject. | 6 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tooth color assessment | VITA Bleachedguide 3D-Master shade guide, includes 29 shade levels defined by the American Dental Association (ADA). These shade levels represents the brightness of the tooth where 1 is the whitest and 29 is the darkest shade. | 6 weeks |