Digital Quantification of Dental Plaque Based on Intraoral Scanner Images

N/ANot Yet RecruitingNCT07152314

University of Guarulhos20 enrolled

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).

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.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Dental Plaque (Diagnosis)Dental Plaque Imaging Methods Dental Plaque Gingivitis Periodontal Disease

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

Correlation between digital 3D intraoral scans and traditional plaque assessment methods

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)

Time frame: Single session (approximately 1.5-2 hours)

Secondary Outcomes

Correlation between digital 2D images and traditional plaque assessment methods

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)

Time frame: Single session (approximately 1.5-2 hours)

Fluorescence imaging capabilities

Detection sensitivity for plaque, correlation with clinical findings, and reproducibility of fluorescence measurements.

Time frame: Single session (approximately 1.5-2 hours)

Plaque volume changes analysis

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).

Time frame: Single session (approximately 1.5-2 hours)

Plaque thickness changes analysis

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.

Time frame: Single session (Approximately 1.5-2 hours)

Digital Quantification of Dental Plaque Based on Intraoral Scanner Images

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts