A study to assess the use of an electric tooth brushing kit to reduce dental plaque and gum disease in teenagers undergoing an orthodontic treatment

ISRCTN ISRCTN18251395
DOI https://doi.org/10.1186/ISRCTN18251395
Secondary identifying numbers 2022044
Submission date
24/06/2022
Registration date
04/07/2022
Last edited
17/08/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
For patients undergoing orthodontic treatment with the use of fixed appliances, the maintenance of proper hygiene critical for oral health can be a challenge. The presence of brackets, archwires and other appliance components limits their hygiene accessibility and therefore may lead to increased plaque accumulation that may enhance the risk of caries and gingivitis. New electric toothbrushes are under continuous review for efficacy improvement.

The objective of this study is to evaluate and compare the efficacy of an electric toothbrush kit versus a manual toothbrush in the reduction of dental plaque among a population aged 13-19 years with fixed orthodontic appliances over a 12-week period using the Turesky Modified Quigley-Hein Plaque Index. The secondary objective is to assess the reduction of gingivitis using the Löe Silness Gingival Index.

Who can participate?
Generally healthy teenagers (13-19 years old) with evidence of dental plaque and gingivitis

What does the study involve?
Participants will be randomly assigned to either the test group (an electrical toothbrush kit with 2 different brush heads) or the control group (a regular manual toothbrush). Participants will use their assigned toothbrush with regular toothpaste twice daily at home for the duration of the study in place of their regular toothbrush and toothpaste. The study is designed to assess if the participants in the test group experience an improvement in oral health. Plaque measurements will be taken at: Baseline visit (pre- and post-brushing), Week 6, and Week 12 visits (both pre-brushing only). Gingivitis measurements will be taken at: Baseline, Week 6, and Week 12 visits. The individual appointments at Baseline, Week 6 and Week 12 will be scheduled for approximately the same daytime for all three visits. Participants will be instructed to abstain from any oral hygiene for 12 hours prior to all visits.

What are the possible benefits and risks of participating?
Participation will help with the development of products that aim to improve oral health. There will be no notable risks involved with participating. This study involves the use of toothbrushes as part of a normal oral hygiene routine. No behaviour with increased risk will be requested from participants. The toothpaste provided in this study is currently marketed. The risk from a chemical hazard is negligible, or no greater than what would have been encountered during daily life. Toothbrushes are not anticipated to cause any serious or long-term effects on oral tissue including gum recession.

Where is the study run from?
Universitätsmedizin der Johannes-Gutenberg-Universität Mainz (Germany)

When is the study starting and how long is it expected to run for?
August 2022 to December 2022

Who is funding the study?
Procter and Gamble (USA)

Who is the main contact?
Prof. Dr. Christina Erbe, PhD (Germany)
erbe@uni-mainz.de

Contact information

Prof Christina Erbe
Scientific

Universitätsmedizin der Johannes-Gutenberg-Universität Mainz
Poliklinik für Kieferorthopädie
Augustusplatz 2
Mainz
55131
Germany

Phone +49 6131 173024
Email erbe@uni-mainz.de

Study information

Study designSingle-center examiner-blind 12-week 2-treatment parallel-group randomized study
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Home
Study typePrevention
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleA clinical evaluation to compare a power toothbrush kit to a manual toothbrush in the reduction of plaque and gingivitis among a teenager population with fixed orthodontic appliances
Study objectivesThe objective of this study is to evaluate and compare the efficacy of an electric toothbrush kit versus a manual toothbrush in the reduction of dental plaque among a population aged 13-19 years with fixed orthodontic appliances over a 12-week period using the Turesky Modified Quigley-Hein Plaque Index. The secondary objective is to assess the level of gingivitis using the Löe Silness Gingival Index.
Ethics approval(s)Submission pending as of 01/07/2022, Commission of the State Medical Association of Rhineland-Palatinate (Kommission der Landesärztekammer Rheinland-Pfalz, Körperschaft des öffentlichen Rechts, Deutschhausplatz 3, 55116 Mainz, Germany; +49 6131 28822-63/-64/-65/-67; ethik-kommission@laek-rlp.de), ref: not available
Health condition(s) or problem(s) studiedEvidence of dental plaque and gingivitis
InterventionParticipants are stratified at baseline on mean gingivitis score, number of bleeding sites, mean pre-brushing plaque index and age. Within these strata, participants are randomly assigned to either the Test group (electric toothbrush) or the Control group (regular manual toothbrush). The randomization will be done using a computer-based program which is provided by the sponsor.

Participants are instructed to use the study products according to the manufacturer's instructions (electrical toothbrush) or in their customary manner (manual toothbrush) at home twice daily (morning and evening) in place of their normal oral hygiene for the duration of the study (12 weeks). Both products will be used with a regularly marketed dentifrice.

Plaque measurements will be taken at: Baseline visit (pre- and post-brushing), Week 6, and Week 12 visits (both pre-brushing only). Gingivitis measurements will be taken at: Baseline, Week 6, and Week 12 visits.
Intervention typeDevice
Pharmaceutical study type(s)Not Applicable
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Electrical toothbrush, manual toothbrush
Primary outcome measureDental plaque (pre-brushing) measured by Turesky Modified Quigley-Hein Plaque Index at baseline, week 6 and week 12
Secondary outcome measuresGingival inflammation measured by Löe Silness Gingival Index at baseline, week 6 and week 12
Overall study start date01/06/2022
Completion date16/12/2022

Eligibility

Participant type(s)Healthy volunteer
Age groupOther
SexBoth
Target number of participants60
Total final enrolment64
Key inclusion criteria1. Give written informed consent (including her/his guardians) and be given a signed copy of the Informed Consent form
2. Have fixed orthodontic appliances in both dental arches
3. Aged between 13 and 19 years old and typically use a manual toothbrush
4. Minimum of 16 natural teeth (excluding third molars) with facial and lingual scorable surfaces
5. Whole mouth average Baseline TQHPI score of 1.75
6. Mild to moderate gingivitis with a range of 10% to 70% bleeding sites
7. General good health as determined by the Investigator/designee based on a review/update of their medical history
8. No participation in any other oral care study for the duration of this study
9. Agree to return for scheduled visits and follow the study procedures
10. Agree to refrain from the use of any non-study oral hygiene products (Exception: floss if they are currently using) for the duration of the study
11. Agree to delay any elective dentistry, including dental prophylaxis, until the completion of the study and to report any non-study dentistry received during the course of this study
12. Refrain from brushing their teeth or from performing any other oral hygiene procedure anytime within the 12 hours prior to all visits and agree to follow these same restrictions prior to all visits
13. Refrain from medicated lozenges, breath mints, eating, drinking*, chewing gum and using tobacco for at least 4 hours prior to this visit and agree to follow these same restrictions prior to all visits. *(Allowed small sips of water up until 45 minutes prior to their appointments.).
Key exclusion criteria1. A condition requiring the need for antibiotic premedication prior to dental procedures
2. Severe periodontal disease, including but not limited to, purulent exudates, generalized mobility, and/or severe recession
3. Teeth that are grossly carious, fully crowned, or extensively restored
4. Active treatment for the following conditions:
4.1. Periodontitis
4.2. Cancer
4.3. Seizure disorder
5. Taking an antibiotic or using a chlorhexidine mouth rinse any time within the previous 2 weeks
6. Having dental prophylaxis any time within the previous 4 weeks
7. Have any of the following:
7.1. Removable partial dentures
7.2. Peri/oral piercings
7.3. A pacemaker or other implanted device
8. Oral/gum surgery within the previous two months
9. A disease or condition that could possibly interfere with examination/procedures or with the subject’s safe completion of this study
Date of first enrolment29/08/2022
Date of final enrolment09/09/2022

Locations

Countries of recruitment

  • Germany

Study participating centre

Universitätsmedizin der Johannes-Gutenberg-Universität Mainz
Augustusplatz 2
Mainz
55131
Germany

Sponsor information

Procter & Gamble (United States)
Industry

8700 Mason Montgomery Road
Mason
45040
United States of America

Phone +1 (0)513 622 1000
Email timm.h@pg.com
Website http://www.pg.com/en_US/
ROR logo "ROR" https://ror.org/04dkns738

Funders

Funder type

Industry

Procter and Gamble
Government organisation / For-profit companies (industry)
Alternative name(s)
Procter & Gamble, PandG, The Procter & Gamble Company, P&G
Location
United States of America

Results and Publications

Intention to publish date01/02/2023
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination plan1. Planned publication in a high-impact peer-reviewed journal
2. The study protocol, statistical analysis plan, and other additional documents are not intended to become available online.
3. The datasets generated during and/or analysed during the current study are not expected to be made available because if the raw data is available but not analyzed appropriately by qualified experts in the area, it may lead to misinterpretation of the results.
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available because if the raw data is available but not analyzed appropriately by qualified experts in the area, it may lead to misinterpretation of the results

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 17/08/2023 No No

Additional files

ISRCTN18251395_BasicResults.docx

Editorial Notes

17/08/2023: The basic results have been uploaded to the study outputs table.
12/12/2022: The intention to publish date was changed from 31/12/2022 to 01/02/2023. Total final enrolment added.