Digital Quantification of Dental Plaque Based on Intraoral Scanner Images

Digital Quantification of Dental Plaque Based on Intraoral Scanner Images

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.

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