ClinicalTrials.gg
CompletedNCT07835022iTeethUpdated Sep 24, 2026

Smartphone App Versus Verbal Motivation for Oral Hygiene in Fixed Orthodontic Patients

An interventional study of Smartphone application for oral-hygiene motivation (iTeeth Orthodontics) and Conventional verbal oral-hygiene motivation in Dental Plaque, Oral Hygiene and Gingivitis, sponsored by Atlas University. Completed at 1 site in Turkey (Türkiye). Open to participants aged 14 Years to 22 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-24.

Sponsored by Atlas University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 6 years 3 months after the study started (first participant enrolled Jun 2020, registered Sep 2026).

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Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
14 Years to 22 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 30 studies in Dental Plaque with a site in Turkey — 5 open to participants now, 5 under way, none of them phase 3. Dental Plaque · Turkey.

Enrollment
12th of 21
50 · median 52
Started
2020
with 3 others
No phase
21 of 30
2 open now
Registered
28th of 30
by date
Lead sponsor
1 of 30
Atlas University

Among the 30 studies in Dental Plaque with a site in Turkey, this one is the 12th largest by enrollment of the 21 interventional ones that give a count, is one of 4 that started in 2020, is one of 21 with no phase, and was the 28th registered.

Dental Plaque

352 studies on the registry are indexed under Dental Plaque; 60 are open to participants now.

Browse Dental Plaque studies →

Open to participants now

5 of the 30 studies in Dental Plaque with a site in Turkey are open now. Recruiting first, the newest first:

All 5 open studies →

A study can be open while its sites in Turkey have not opened yet or have stopped. Only those recruiting at a site in Turkey →

Who these studies take

Of the 35 Dental Plaque studies recruiting now, 10 (29%) set no upper age limit and 20 (57%) stop at 75 or younger; 14 take children under 18; 22 take healthy volunteers.

This study: 14 Years to 22 Years · all sexes · healthy volunteers too.

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02

Study summary

This study looked at whether a smartphone app can help patients with fixed braces keep their teeth cleaner than usual spoken advice alone. Fixed braces make plaque harder to remove, which can harm the teeth and gums, so good brushing habits matter.

Fifty patients aged 14 to 22 were divided at random into two groups. One group used a purpose-made app ("iTeeth Orthodontics") that sent brushing reminders, timed brushing, and kept a brushing log. The other group received the usual spoken oral-hygiene motivation. Both groups used the same brushes, toothpaste, and rinse, and followed the same cleaning routine.

Plaque was measured from photographs at 10 days and at 1, 2, and 3 months, using a computer to calculate how much of each tooth surface was covered by plaque. The two groups were then compared.

Read the detailed description

ackground and objective: Maintaining oral hygiene during fixed orthodontic treatment is difficult, and patient motivation is central to preventing plaque accumulation, enamel demineralization, and gingival inflammation. This trial compared a purpose-built smartphone application with conventional verbal motivation for plaque control during fixed orthodontic treatment.

Design: Prospective, randomized, controlled, parallel-group (1:1) in vivo trial conducted at the Department of Orthodontics, Faculty of Dentistry, Ondokuz Mayıs University (Samsun, Türkiye). Fifty patients (14-22 years) with Class I or II malocclusion who owned and used a smartphone were enrolled and allocated equally to a mobile group (app plus standard regimen) or a control group (verbal motivation plus the identical regimen).

Intervention: The "iTeeth Orthodontics" application provided treatment information, customizable brushing reminders (push notifications), an adjustable brushing timer with interdental-brush and mouthrinse prompts, and a daily/weekly/monthly brushing log. Both groups used identical brackets, archwires, toothbrushes, interdental brushes, toothpaste, and mouthrinse, and followed the same oral-hygiene regimen (modified Bass brushing three times daily, nightly interdental cleaning, and mouthrinse), so that the motivational method was the only variable.

Outcome and assessment: Plaque was recorded at day 10 (T0) and at 1 (T1), 2 (T2), and 3 (T3) months. After application of a disclosing agent, standardized intraoral photographs were taken, and the disclosed plaque area on the maxillary central incisors, canines, and second premolars was quantified by computer-assisted planimetry as a percentage of the total visible buccal crown surface. The outcome assessor was blinded to group and time point. Between-group and over-time comparisons were then performed.

03

Conditions studied

  • Dental Plaque
  • Oral Hygiene
  • Gingivitis
  • Malocclusion

Keywords

  • fixed orthodontic appliances
  • oral hygiene motivation
  • mHealth
  • smartphone application
  • dental plaque
  • plaque index
  • patient compliance
  • adolescents
04

Who can participate

Ages eligible
14 Years to 22 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria:* Aged 14-22 years

  • Accepted for fixed orthodontic treatment
  • Skeletal and/or dental Class I or Class II malocclusion
  • Owns and regularly uses a smartphone
  • Completed permanent dentition
  • No systemic disease and no continuous (long-term) medication

Exclusion Criteria:* Skeletal malocclusion severe enough to require orthognathic (surgical) treatment

  • Motor, physical, or mental impairment interfering with toothbrushing
  • Congenitally missing or pre-treatment extracted teeth
  • Impacted or supernumerary teeth
  • Teeth with shape anomalies -
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
50 participants (actual)

Study arms

  • Experimental
    Mobile group

    Participants used the purpose-built "iTeeth Orthodontics" smartphone application (treatment information, customizable brushing reminders/push notifications, an adjustable brushing timer with interdental-brush and mouthrinse prompts, and a daily/weekly/monthly brushing log), together with the standardized oral-hygiene regimen and materials used by both groups.

    Behavioral: Smartphone application for oral-hygiene motivation (iTeeth Orthodontics)

  • Active comparator
    Control group

    Participants received conventional verbal oral-hygiene motivation, without the smartphone application, together with the identical standardized oral-hygiene regimen and materials used by both groups.

    Behavioral: Conventional verbal oral-hygiene motivation

Interventions

  • BehavioralSmartphone application for oral-hygiene motivation (iTeeth Orthodontics)

    Purpose-built smartphone application supporting oral hygiene during fixed orthodontic treatment. It provides treatment information, customizable brushing reminders (push notifications), an adjustable brushing timer that prompts interdental-brush use and mouthrinse at the end of each session, and a daily/weekly/monthly brushing log, used alongside the standardized oral-hygiene regimen common to both groups.

  • BehavioralConventional verbal oral-hygiene motivation

    Standard chairside verbal oral-hygiene motivation and instruction, delivered without the smartphone application, alongside the same oral-hygiene regimen and materials (toothbrush, interdental brush, toothpaste, mouthrinse; modified Bass brushing three times daily, nightly interdental cleaning, and mouthrinse) provided to both groups.

06

What researchers measure

Primary outcomes

  1. Dental plaque percentage (computer-assisted planimetry)

    Amount of dental plaque expressed as the disclosed plaque area as a percentage of the total visible buccal crown surface. After application of a plaque-disclosing agent, standardized intraoral photographs were taken and the plaque area on the maxillary central incisors, canines, and second premolars was quantified by computer-assisted planimetry. Lower values indicate less plaque (better oral hygiene). The outcome assessor was blinded to group and time point.

    Time frame: Day 10 (T0, baseline) and at 1 month (T1), 2 months (T2), and 3 months (T3)

Secondary outcomes

  1. Tooth-type-specific dental plaque percentage

    Plaque percentage (disclosed plaque area as a percentage of the total visible buccal crown surface, by planimetry) analyzed separately for maxillary central incisors, canines, and second premolars, and within-group change over the follow-up period.

    Time frame: Day 10 (T0) and at 1 month (T1), 2 months (T2), and 3 months (T3)

07

Study locations

1 site
  • Ondokuz Mayıs University, Faculty of Dentistry, Department of Orthodontics
    Samsun, 55139, Turkey (Türkiye)
08

References and documents

Publications

  • Alkadhi OH, Zahid MN, Almanea RS, Althaqeb HK, Alharbi TH, Ajwa NM. The effect of using mobile applications for improving oral hygiene in patients with orthodontic fixed appliances: a randomised controlled trial. J Orthod. 2017 Sep;44(3):157-163. doi: 10.1080/14653125.2017.1346746. Epub 2017 Jul 13. PubMed 28705122 ↗
  • Soder PO, Jin LJ, Soder B. Computerized planimetric method for clinical plaque measurement. Scand J Dent Res. 1993 Feb;101(1):21-5. doi: 10.1111/j.1600-0722.1993.tb01640.x. PubMed 8441891 ↗

Individual participant data

Plan to share: Yes — De-identified individual participant data underlying the reported results are available from the corresponding author on reasonable request, subject to institutional approval and a data-sharing agreement, and in accordance with the privacy and ethical restrictions of the approving ethics committee.

Time frame: Available from publication of the article, on reasonable request to the corresponding author, with no fixed end date.

Access criteria: Requests are evaluated by the corresponding author; access requires a reasonable scientific purpose, institutional approval, and a signed data-sharing/confidentiality agreement, consistent with ethics-committee restrictions.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2020 to primary completion in Jan 2021, 7 months.

Of 133 non-industry interventional studies with no phase under Dental Plaque, half reached primary completion within 7 months of starting (the median), counting those still running; a quarter within 3 and three quarters within 16. This study's 7 months is close to that.

Counting every sponsor, half of 178 studies reached it within 6 months; a quarter within 2 and three quarters within 14.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 17, 2026
First posted
Sep 22, 2026
StartActual
Jun 8, 2020
Primary completionActual
Jan 12, 2021
CompletionActual
May 18, 2021
Last update
Sep 24, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 24, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07835022
Lead sponsor
Atlas University
Responsible party
Selim Arici (Prof. Dr., Ondokuz Mayıs University) — Principal investigator
First posted
Sep 22, 2026
Start date
Jun 8, 2020
Primary completion
Jan 12, 2021
Completion
May 18, 2021
Last update
Sep 24, 2026

Study contacts

Selim Arici
study chair · Atlas University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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