NCT07152314

Digital Quantification of Dental Plaque Based on Intraoral Scanner Images

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 20 (estimated)
• Sponsor: University of Guarulhos · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

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.

Conditions

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

Interventions

Type	Name	Description
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).

Timeline

• Start date: 2025-09-01
• Primary completion: 2026-04-01
• Completion: 2026-08-01
• First posted: 2025-09-03
• Last updated: 2025-09-03

Locations

1 site across 1 country: Brazil