A study to compare three different bristle designs of manual toothbrushes in reducing dental plaque in fixed orthodontic patients

ISRCTN ISRCTN15086076
DOI https://doi.org/10.1186/ISRCTN15086076
Submission date
11/07/2022
Registration date
14/07/2022
Last edited
11/04/2023
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
Manual toothbrushes play a fundamental role in oral hygiene for preventing dental plaque. Controlling dental plaque accumulation for preventing gum inflammation (gingivitis), gum disease (periodontitis), and tooth decay, is highly influenced by several factors. The presence of fixed orthodontic appliances on tooth surfaces such as brackets and bands creates difficulties in maintaining good oral hygiene, leading to the build-up of plaque. Although there is considerable literature revealing the superiority of powered toothbrushes, particularly oscillating rotating brushes, when compared to manual toothbrushes in patients with fixed orthodontic appliances, there is limited evidence regarding the effectiveness of advanced bristle designs (multilevel, criss-cross) of manual toothbrushes alone in removing plaque on patients undergoing orthodontic treatment except for a few that have compared manual brush with orthodontic brushes with conflicting reports of effectiveness.
This study aims to compare the level of plaque before and after using three different bristle designs of manual toothbrushes in patients undergoing fixed orthodontic treatment.

Who can participate?
Patients being treated with a fully bonded fixed orthodontic appliance, aged between 18 and 25 years, and in good general and oral health.

What does the study involve?
Participants will be allocated to use one of three types of manual toothbrushes (flat, orthodontic, multilevel pulsar) at random, with an equal chance of being allocated each type (like tossing a coin) during the first visit of the study. In the second visit of the study, participants will use one of the two toothbrush types that they did not use in the previous part of the study, again allocated at random. In the third visit of the study, they will use the type of toothbrush they have not yet used. Each visit of the study will be separated by 1 week. Before and after using each type of toothbrush, participants will be assessed for levels of plaque.

What are the possible benefits and risks of participating?
The risks and inconvenience will be very minimal limited to participants sparing some of their valuable time. There will be no individual benefit from participation in this study but it may help in the advancement of knowledge and health science progress.

Where is the study run from?
King Abdullah International Medical Research Center (Saudi Arabia)

When is the study starting and how long is it expected to run for?
From April 2020 to April 2022

Who is funding the study?
Investigator-initiated and funded

Who is the main contact?
Dr Fathima Fazrina Farook, fazrinaf@ksau-hs.edu.sa

Contact information

Dr Fathima Farook
Principal Investigator

King Saud Bin Abdul Aziz University For Health Sciences
KSAU-HS
College of Dentistry
Riyadh
11426
Saudi Arabia

ORCiD logoORCID ID 0000-0002-2257-2662
Phone +966 (0)531051380
Email fazrinaf@ksau-hs.edu.sa

Study information

Study designRandomized crossover trial
Primary study designInterventional
Secondary study designRandomised cross over trial
Study setting(s)Hospital
Study typePrevention
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleA comparative study of three different bristle designs of manual toothbrushes in dental bio-film reduction in fixed orthodontic patients
Study objectivesTo compare the level of plaque before and after using three different bristle designs of manual toothbrushes (multilevel, flat trim, and orthodontic) in patients undergoing fixed orthodontic treatment using the modified bass technique.
Ethics approval(s)Approved 15/03/2020, Institutional Review Board (IRB) Ministry of National Guard - Health Affairs (King Abdullah International Medical Research Center, Ali Al Arini, Ar Rimayah, Riyadh 11481; +966 (0)114294444; irb@ngha.med.sa), ref: RC20/085/R
Health condition(s) or problem(s) studiedPlaque removal in patients with fixed orthodontic appliances
InterventionThe study participants will be randomly divided into three treatment sequences using the computer-generating random method ABC, BCA, and CAB with approximately 10 subjects in each treatment sequence.
Group A: Toothbrush with flat bristles
Group B: Toothbrush with orthodontic bristles
Group C: Toothbrush with multilevel (Pulsar) bristles
The washout period between each visit will be 1 week
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)
Primary outcome measurePlaque score measured using the Turesky Modified Quigley-Hein Plaque Index at baseline and following each single brushing exercise
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date01/04/2020
Completion date01/04/2022

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit25 Years
SexBoth
Target number of participants30
Total final enrolment34
Key inclusion criteria1. Aged ≥18 to ≤25 years
2. In good general and oral health
3. Wearing fully bonded fixed orthodontic appliances
4. Good hand dexterity
5. Without any disabilities
6. ≥25 natural teeth with facial and lingual scorable surfaces without any oral lesions
7. Periodontal pockets of 3mm or loss of attachment/recession of 2mm
Key exclusion criteria1. Evidence of mucogingival problems
2. Smoking
3. Pregnancy
4. Five or more carious lesions requiring restorative treatment
5. Heavy restorations
6. Wearing fixed or removable prostheses
7. Participation in any other elective dental procedure, including prophylaxis, during the study period
8. Evidence of any disease or condition that may interfere with the study procedures
Date of first enrolment01/10/2020
Date of final enrolment01/10/2021

Locations

Countries of recruitment

  • Saudi Arabia

Study participating centre

King Saud Bin Abdul Aziz University For Health Sciences
College of Dentistry
KSAU-HS
Riyadh
11426
Saudi Arabia

Sponsor information

King Abdullah International Medical Research Center
Government

KSAU-HS
Riyadh
11481
Saudi Arabia

Phone +966 (0)114294444
Email kaimrc-cts@NGHA.MED.SA
Website http://kaimrc.med.sa/
ROR logo "ROR" https://ror.org/009p8zv69

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/11/2022
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request. Dr Fathima Fazrina Farook (fazrinaf@ksau-hs.edu.sa) can be contacted for access to the datasets. Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices) will be shared at the beginning 3 months and ending 5 years following article publication, for individual participant data meta-analysis.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 26/08/2022 11/04/2023 Yes No

Editorial Notes

11/04/2023: Publication reference added.
11/07/2022: Trial’s existence confirmed by Institutional Review Board (IRB) Ministry of National Guard - Health Affairs.