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).
Presence of at least 20 natural teeth
Visible plaque index > 20% at initial assessment
Age between 18 and 65 years
Both sexes eligible
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
Recruitment will be carried out through different communication channels, including informative posters distributed in the dental clinics of UnG, digital dissemination on the university's official website and its institutional social networks, direct invitation to patients who are on the waiting list of the periodontics clinic, and dissemination by the professors of the undergraduate and graduate clinics. All promotional materials will clearly state the inclusion and exclusion criteria, as well as provide contact information for scheduling, initial screening, and the ethics committee approval number. All participants will attend the Center for Clinical Studies of Univeritas UnG.
Case-crossover
Prospective
Digital plaque quantification using intraoral scanner
Diagnostic testParticipants 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).
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)
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)
Fluorescence imaging capabilities
Detection sensitivity for plaque, correlation with clinical findings, and reproducibility of fluorescence measurements.
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).
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.
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options:
