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CompletedNCT03439969Updated Feb 22, 2018

A 8-month Study on the Use of Intra-oral Camera and Text Messages on Gingivitis Control

An interventional study of Mobile Text Messages and Intra Oral Camera in Behavior and Behavior Mechanisms and Gingivitis, sponsored by University of Lisbon. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-02-22.

Sponsored by University of Lisbon · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 3 years 8 months after the study started (first participant enrolled Jun 2014, registered Feb 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
233
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

To investigate the effects of using an intra-oral camera (IOC) during supportive periodontal therapy, and oral hygiene mobile text messages (SMS) between appointments on clinical, behavioral and psychological parameters of patients with gingivitis.

Read the detailed description

Dental hygiene behaviours are of paramount importance for controlling gingival health. There is evidence on the use of IOC and of text messages in boosting motivation, sustainability and clinical efficacy of dental hygiene behaviors. Orchestrating these two technologies is expected to create a coaction effect which could improve behavior change interventions, but the effectiveness of such strategy needs to be inspected.

02

Conditions studied

  • Behavior and Behavior Mechanisms
  • Gingivitis

Keywords

  • Gingivitis
  • SMS
  • Text messages
  • Behavior change
  • HAPA
  • Dental Hygiene
03

In context

Behavior

1,573 studies on the registry are indexed under Behavior; 313 are open to participants now.

This study's enrollment of 233 is above the median of 120 across 1,197 interventional studies indexed under Behavior.

Browse Behavior studies →

Lead sponsor

University of Lisbon is the lead sponsor of 40 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Gingivitis BOMP > 0.5 20 teeth (minimum 5 per quadrant) > 18 years old

Exclusion criteria

Exclusion Criteria:

periodontitis (pockets >3), smoking, orthodontics, pregnancy removable partial dentures

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Investigator)
Enrollment
233 participants (actual)

Study arms

  • No intervention
    Control

    Dental appointment, one hour and included activities that are normally part of a SPT (Suportive Periodontal Treatment) consultation, as well as specific behavior change techniques, such as the use of reinforcement, goal-setting and feedback considered crucial to the accomplishment of long term behavior change. Moreover, special attention was given to patient communication and words such as 'cleaning' and 'hygiene' were replaced by therapeutic synonyms (e.g. inflamed areas and controlling the inflammation) in order to focus patients´ attention on the varied facets of oral health care and increase their perception of the treatment needs. In this group, the device SOPROCARE® by Acteon and Text Messages were not used.

  • Experimental
    Intra Oral Camera

    Dental appointment, one hour and included activities that are normally part of a SPT consultation, as well as specific behavior change techniques, such as the use of reinforcement, goal-setting and feedback. Special attention was given to patient communication and words such as 'cleaning' and 'hygiene' were replaced by therapeutic synonyms (e.g. inflamed areas and controlling the inflammation). In this group, the device SOPROCARE® by Acteon was used in the examination and diagnosis and also for the establishment of therapeutic goals, strategies and skills.

    Device: Intra Oral Camera

  • Experimental
    Mobile Text Messages

    Dental appointment, one hour and included activities that are normally part of a SPT consultation, as well as specific behavior change techniques, such as the use of reinforcement, goal-setting and feedback.. Participants in the SMS group further received a total of 16 messages (SMS). One per week.

    Device: Mobile Text Messages

  • Experimental
    Intra Oral Camera and Text Messages

    Dental appointment, one hour and included activities that are normally part of a SPT consultation, as well as specific behavior change techniques, such as the use of reinforcement, goal-setting and feedback. Special attention was given to patient communication and words such as 'cleaning' and 'hygiene' were replaced by therapeutic synonyms (e.g. inflamed areas and controlling the inflammation). In this group, the device SOPROCARE® by Acteon was used in the examination and diagnosis and also for the establishment of therapeutic goals, strategies and skills.Participants also received SMS a total of 16 messages (SMS). One per week.

    Device: Mobile Text Messages · Device: Intra Oral Camera

Interventions

  • DeviceMobile Text Messages

    Dental inter-proximal control with floss holder and receiving 16 SMS during 4 months.

  • DeviceIntra Oral Camera

    SPT - Appointment with Intra-Oral Camera * Examination and diagnosis (15 min) using Intra-oral camera. * Motivation, discussion about desired outcomes and treatment needs (using Intra-oral camera) followed by instrumentation (scaling, polishing) (30 min).

06

What researchers measure

Primary outcomes

  1. Change from BOMP (Bleeding on Marginal Probing) at 4 & 8 months

    Gingival bleeding Index

    Time frame: Baseline, 4 months & 8 months

Secondary outcomes

  1. HAPA (Health Action Process Approach) behavioral variables questionnaire.

    Measures adapted to oral health from previous studies with the HAPA model (Godinho et al. 2015) were used. All the HAPA variables were evaluated using a 7 point Likert-type scale, ranging from totally disagree (1) to totally agree (7), unless otherwise stated.

    Time frame: Baseline, 4 & 8 months.

  2. SMS (Short Messages Service) text messages opinion questionnaire

    Opinion about receiving SMS and how can it influence the appointment.

    Time frame: At 4 months.

  3. Intra Oral Camera opinion questionnaire

    Opinion about receiving Intra Oral camera and how can it influence the appointment.

    Time frame: At 4 and 8 months.

  4. Self-report Dental Hygiene Behaviors questionnaire.

    Level of toothbrushing and dental floss frequency.

    Time frame: Baseline, 4 and 8 months.

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Godinho CA, Alvarez MJ, Lima ML, Schwarzer R. Health messages to promote fruit and vegetable consumption at different stages: A match-mismatch design. Psychol Health. 2015;30(12):1410-32. doi: 10.1080/08870446.2015.1054827. Epub 2015 Jul 24. PubMed 26010304 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 22, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03439969
Lead sponsor
University of Lisbon
Responsible party
Mario Rui Araújo (Master in Health Psychology, University of Lisbon) — Principal investigator
First posted
Feb 20, 2018
Start date
Jun 1, 2014
Primary completion
Feb 28, 2015
Completion
Nov 30, 2016
Last update
Feb 22, 2018

Oversight

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

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