Digital Quantification of Dental Plaque Based on Intraoral Scanner Images
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Digital plaque quantification using intraoral scanner.
- Who it may be relevant to
- Registry conditions: Dental Plaque (Diagnosis), Dental Plaque Imaging Methods, Dental Plaque, Gingivitis. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Brazil
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
This diagnostic validation study aims to develop and validate a digital method for dental biofilm quantification using three-dimensional images obtained by an intraoral scanner. Twenty participants will undergo intraoral scanning at three time points: before and after plaque disclosure, and after supervised toothbrushing. The digital method's accuracy will be compared with traditional clinical assessment methods (Turesky Plaque Index).
Detailed description
A prospective, evaluator-blinded clinical study including 20 participants (18-65 years) with at least 20 natural teeth and a visible plaque index \>20%. Participants will be evaluated at three time points in a single session using TRIOS 4 intraoral scanner. Digital analysis will be performed using Geomagic Control X software to calculate the percentage of surface area covered by plaque. The study includes standardized intraoral photographs and supervised toothbrushing procedures. This digital method aims to provide a more objective and precise assessment of dental biofilm, overcoming limitations of conventional visual assessment methods.
Interventions
- Diagnostic test Digital plaque quantification using intraoral scanner
Participants will undergo three-dimensional intraoral scanning at three time points during a single session: initial scanning (T0), after biofilm disclosure with plaque disclosing solution (T1), and after supervised toothbrushing (T2).
Primary outcome measures
- Correlation between digital 3D intraoral scans and traditional plaque assessment methods [Time frame: Single session (approximately 1.5-2 hours)]
Secondary outcome measures (4)
- Correlation between digital 2D images and traditional plaque assessment methods [Time frame: Single session (approximately 1.5-2 hours)]
- Fluorescence imaging capabilities [Time frame: Single session (approximately 1.5-2 hours)]
- Plaque volume changes analysis [Time frame: Single session (approximately 1.5-2 hours)]
- Plaque thickness changes analysis [Time frame: Single session (Approximately 1.5-2 hours)]
Eligibility criteria
Inclusion criteria
- Presence of at least 20 natural teeth
- Visible plaque index > 20% at initial assessment
- Age between 18 and 65 years
- Both sexes eligible
Exclusion criteria
- Use of fixed orthodontic appliances
- Presence of extensive restorations or fixed dentures on the anterior teeth
- Systemic conditions that interfere with the formation of dental biofilm
- Use of medications that alter salivary flow
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Case-crossover
Study locations
Brazil · 1 center
- University of Guarulhos — Guarulhos
Publications
- Del Rey YC, Rikvold PD, Johnsen KK, Schlafer S. A fast and reliable method for semi-automated planimetric quantification of dental plaque in clinical trials. J Clin Periodontol. 2023 Mar;50(3):331-338. doi: 10.1111/jcpe.13745. Epub 2022 Nov 28. PMID 36345833
Identifiers
NCT: NCT07152314 · 85446624.8.0000.5506