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Maxillary Transverse DeficiencyNCT05539469

A 6-months Evaluation of Patients' Compliance and Oral Hygiene During Rapid Maxillary Expander (RME) Treatment Using "Ortodontika" Smartphone Application

A study testing Ortodontika app and Verbal instructions in people with Maxillary Transverse Deficiency, run by University of Pavia at 1 site in Italy.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to evaluate the clinical use of the smartphone application "Ortodontika" for the compliance of orthodontic patients with Rapid Maxillary Expander (RME). Patients and parents consenting to participate in the study will sign the informed consent for their child. Read more about this study

Who is it for?
Ages 6 to 14 years
Conditions the study is for
Maxillary Transverse Deficiency
What is being tested?
Ortodontika app and Verbal instructions
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteItaly
Study dates
1 Oct 2022to 29 Jan 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 14 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • patients and their parents are able or willing to give informed consent;
  • patients who will begin orthopedic treatment with RME cemented on first maxillary molars and with welded vestibular tubes;
  • patients undergone no previous orthopedic/orthodontic treatment;
  • parents' willing to download and use Ortodontika application;
  • parents possessing an Apple or Android smartphone with iOS ≥ 10.0 or Android ≥ 4.4 versions;
  • smartphone provided with an internet connection.

Who cannot join

  • no sectional wire appliances in the upper arches;
  • no need of additional orthopedic/orthodontic appliances, also in the lower arch;
  • no vestibular welded protraction hooks on RME;
  • patients taking regular medications for systemic diseases that could alter periodontal conditions and pain perception (antibiotics, antibacterial mouth rinses, NSAIDS, steroids);
  • siblings with previous orthopedic treatment with RME;
  • parents and patients with low compliance.

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of Pavia

    Pavia, Lombardy, 27100

Other trials in Italy

About this study

Official title: A 6-months Evaluation of Patients' Compliance and Oral Hygiene During Rapid Maxillary Expander (RME) Treatment Using "Ortodontika" Smartphone Application: a Randomized Clinical Trial

The aim of this study is to evaluate the clinical use of the smartphone application "Ortodontika" for the compliance of orthodontic patients with Rapid Maxillary Expander (RME).

Patients and parents consenting to participate in the study will sign the informed consent for their child. At the baseline (T0), a periodontal examination will be carried out by means of a probe assessing Bleeding Index, Plaque Index and Modified Gingival Index on upper first incisors, first premolars/first primary molars and first molars. A professional oral hygiene will be performed using a piezoelectric instrument and a manual scaler. A RME will be cemented with a glass ionomer cement on the maxillary first molars and will be activated by parents on clinicians' instructions. Patients will receive an oral hygiene kit containing toothpaste, soft-bristled toothbrush, single tufted brush and interdental brushes (0.6 and 0.9 mm). Orthodontic wax and 1% chlorhexidine will be given for emergencies. At this point, patients will be divided into two groups:

Read more
  • Control group: verbal instructions on the correct activation of the RME and on its cleaning will be given to parents at each visit, together with verbal instructions on the correct daily practices for oral hygiene;
  • Trial group: use of "Ortodontika" smartphone application as adjunct to verbal instructions on the correct activation of the RME to be performed by one parent, through a daily notification until T1 (end of activations); parents have to supervise daily oral hygiene of RME and the correct daily practices for oral hygiene. A notification will be sent every 2 weeks until the end of the study to remind patients to watch the videos on oral hygiene maneuverers.

Patients will be visited at the end the activations (T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6). At the recall, the periodontal indices will be evaluated again. At each recall, extra products will be given for home oral hygiene Patients and parents from the Control group will receive a questionnaire to evaluate awareness of orthodontic therapy (aims and phases) and knowledge of oral hygiene maneuverers. Patients and parents from the Trial group will receive an extra questionnaire about Ortodontika application. During the study, the number of emergencies will be recorded.

Read the detailed description

The aim of this study is to evaluate the clinical use of the smartphone application "Ortodontika" for the compliance of orthodontic patients with Rapid Maxillary Expander (RME).

Patients and parents consenting to participate in the study will sign the informed consent for their child. At the baseline (T0), a periodontal examination will be carried out by means of a probe (UNC probe 15; Hu-Friedy, Chicago, IL, USA) assessing Bleeding Index, Plaque Index and Modified Gingival Index on upper first incisors, first premolars/first primary molars and first molars. A professional oral hygiene will be performed using a piezoelectric instrument (Multipiezo, Mectron S.p.a, Carasco, Italy) and a manual scaler (LM23, LM-Dental, Pargas, Finland). A RME will be cemented with a glass ionomer cement (3M Multi-Cure, 3M Unitek, Monrovia, CA, USA) on the maxillary first molars and will be activated by parents on clinicians' instructions. Patients will receive an oral hygiene kit containing toothpaste (GUM Junior 7+, Sunstar Deutschland GmbH, Schonau, Germany), soft-bristled toothbrush (GUM Technique PRO toothbrush), interdental brush 0.6 and 0.8 mm of diameter (GUM TRAV-LER) and a single tufted brush (GUM End-Tuft). Orthodontic wax will be given for emergencies related to RME (GUM ORTHO wax) and 1% chlorhexidine gel (Curasept Periodontal gel, Curasept S.p.A, Saronno, VA, Italy) will be given for gingival inflammation. At this point, patients will be divided into two groups:

  • Control group: verbal instructions on the correct activation of the RME and on its cleaning will be given to parents at each visit, together with verbal instructions on the correct daily practices for oral hygiene;
  • Trial group: use of "Ortodontika" smartphone application as adjunct to verbal instructions on the correct activation of the RME to be performed by one parent, through a daily notification until T1 (end of activations); parents will have to supervise daily oral hygiene of RME and the correct daily practices for oral hygiene. A notification will be sent every 2 weeks until the end of the study to remind patients to watch the videos on oral hygiene maneuverers.

Patients will be visited at the end of the activations (T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6). At the recall, the periodontal indices will be evaluated and a questionnaire will be given to patients. At each recall, extra products will be given for home oral hygiene. During the study, the number of emergencies will be recorded: RME decementation, patients perceiving pain related to plaque accumulation, mucosal ulcerations due to vestibular tubes, parents that do not understand how to perform RME activations, patients asking the clinician to perform RME activations chairside. A questionnaire will be given to patients and parents belonging to both groups to evaluate awareness of orthodontic therapy aims and phases, knowledge of oral hygiene maneuverers. A questionnaire about Ortodontika application usefulness will be given only to patients and parents belonging to Trial group.

Being tested
Ortodontika app, Verbal instructions
Keywords
Oral hygiene, Rapid Maxillary Expander, Smartphone application, Orthopedic treatment

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ortodontika appDevice

    parents will download and use Ortodontika smartphone application for all the duration of the study. It will be an aid during orthopedic treatment. During the activations, a notification will be set to remind the daily activation of RME. After the end of the activation protocol, parents will receive a notification every 2 weeks to instruct their children to proper oral hygiene maneuvers. Parents will have to show their children the videos for oral hygiene maintenance every 2 weeks until the end of the study.

  • Verbal instructionsOther

    verbal instructions will be given chairside to patients and parents regarding RME activation and its cleaning, together with instructions for daily oral hygiene manoeuvres.

Study groups in NCT05539469
Study groupRoleWhat they receive
Trial groupExperimentalPatients from this group will be assisted by Orthodontika application during orthopedic treatment. Reminders will be sent for the activation of Rapid Maxillary Expander and for oral hygiene maneuvers. Written information about orthopedic treatment and oral hygiene tips can be read.
Receives: Device: Ortodontika app
Control groupOtherPatients from this group will not have access to Orthodontika application during orthopedic treatment. Patients will receive only verbal instruction about the activation of Rapid Maxillary Expander and for oral hygiene maneuvers.
Receives: Other: Verbal instructions

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Modified Gingival Index (Eppright et al., 2014)

    Scoring criteria (one measurement for each tooth: upper first incisors, first premolars/first primary molars and first molars):

    1. Absence of inflammation
    2. Mild inflammation (marginal or papillary unit)
    3. Mild inflammation (entire marginal and papillary unit)
    4. Moderate inflammation
    5. Severe inflammation

    Measured: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)

  2. Change in Bleeding Index (Saxton and van der Ouderaa, 1989)

    Scoring criteria (mesio-buccal, direct buccal, and disto-buccal probed gingival sulci of upper first incisors, first premolars/first primary molars and first molars):

    1. Absence of bleeding after 30 seconds
    2. Bleeding observed after 30 seconds
    3. Immediate bleeding

    Measured: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)

  3. Change in Plaque Index (Quigley et al. 1962)

    Scoring criteria (one measurement for the buccal surface of upper first incisors, first premolars/first primary molars and first molars):

    1. No plaque
    2. Discontinuous band of plaque at gingival margin
    3. Up to 1-mm continuous band of plaque at gingival margin
    4. Band of plaque wider than 1 mm but less than 1/3 of surface
    5. Plaque covering between 1/3 and 2/3 of surface
    6. Plaque covering 2/3 or more of surface

    Measured: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)

  4. Change in Number of emergencies

    RME decementation, patients perceiving pain related to plaque accumulation, mucosal ulcerations due to vestibular tubes, parents that do not understand how to perform RME activations, patients asking the clinician to perform RME activations chairside will be collected.

    Measured: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)

  5. Change in Awareness questionnaire

    Parents and patients from both the groups will complete a questionnaire about their awareness on RME treatment and oral hygiene maneuverers with scores from 0 (worst experience) to 10 (best experience).

    Measured: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)

  6. Change in App questionnaire

    Parents and patients from Trial group will complete a questionnaire about Ortodontika application usefulness with scores from 0 (worst experience) to 10 (best experience).

    Measured: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Sep 2022
  2. Study start1 Oct 2022
  3. Primary completion20 Jan 2025
  4. Study completion29 Jan 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Model description
Two parallel arms.
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05539469
Sponsor's protocol ID
2022-ORTODONTIKA
Status last verified
Aug 2025
First submitted
7 Sep 2022
Last updated
24 Aug 2025
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Data will be available upon motivated request to the corresponding author.

Questions about this trial

What is this clinical trial studying?

A study testing Ortodontika app and Verbal instructions in people with Maxillary Transverse Deficiency, run by University of Pavia at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Modified Gingival Index (Eppright et al., 2014) (time frame: Baseline (T0), 1 month (end of activations - T1), after 1.5 months (T2), after 3 (T3) and 6 months (T6)). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Aug 2025.

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