Dental Plaque, Dental Plaque (Diagnosis), Dental Plaque Imaging Methods, Gingivitis, Periodontal Disease
Conditions
Keywords
Dental Biofilm, Intraoral Scanner, Preventive Dentistry, Plaque quantification, Digital Diagnosis
Brief summary
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_TESTDigital 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).
Sponsors
University of Guarulhos
Colgate Palmolive
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Correlation between digital 3D intraoral scans and traditional plaque assessment methods | Single session (approximately 1.5-2 hours) | Correlation between the percentage of dental surface area covered by biofilm quantified by the digital method (intraoral scanner) and the plaque index obtained by the traditional clinical method (Quigley-Hein Plaque Index modified by Turesky) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Correlation between digital 2D images and traditional plaque assessment methods | Single session (approximately 1.5-2 hours) | Correlation between the percentage of dental surface area covered by biofilm quantified by intraoral photographs with different filters and the plaque index obtained by the traditional clinical method (Quigley-Hein Plaque Index modified by Turesky) |
| Fluorescence imaging capabilities | Single session (approximately 1.5-2 hours) | Detection sensitivity for plaque, correlation with clinical findings, and reproducibility of fluorescence measurements. |
| Plaque volume changes analysis | Single session (approximately 1.5-2 hours) | Ability of the digital method to detect changes in the amount of biofilm, evaluated by the percentage difference in area covered between T0 (initial), T1 (after disclosure) and T2 (after professional brushing). |
| Plaque thickness changes analysis | Single session (Approximately 1.5-2 hours) | Ability of the digital method to detect changes in the amount of biofilm, evaluated by the color map difference in area covered between T0 (initial), T1 (after disclosure), and T2 (after professional brushing), and correlating those with other features, such as disclosing agent color and fluorescence. |
Countries
Brazil
Contacts
PRINCIPAL_INVESTIGATORMohamed A Hassan, PhD
University of Guarulhos
Outcome results
None listed