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3D Volumetric Plaque Assessment on Teeth, Composite Restorations, and Ceramic Veneers Using an Intraoral Scanner

NCT07421687 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 45

Last updated 2026-02-23

No results posted yet for this study

Summary

The goal of this observational study is to evaluate and compare a 3D intraoral scanner-based, computer-assisted approach for assessing dental biofilm/plaque accumulation on natural teeth and restorative surfaces with a conventional clinical plaque index (Turesky modified Quigley-Hein Plaque Index, TMQHPI) in systemically healthy adults. The main questions it aims to answer are:

* How well does the plaque-covered surface measurement derived from 3D intraoral scanner data agree with TMQHPI scores after plaque disclosure?
* How sensitively do the two methods detect changes in plaque levels after supervised toothbrushing?
* Do plaque accumulation patterns differ between natural tooth surfaces and restorative materials (direct composite restorations and indirect ceramic veneers), and where are plaque-retentive areas most frequently located?

Participants (≥18 years) will receive routine professional mechanical plaque removal as part of standard clinical care. They will then be asked to avoid mechanical and/or chemical plaque control for 4 days. At the follow-up visit, participants will undergo:

1. An intraoral scan and standardized photographs of the full dental arch,
2. Plaque disclosure followed by repeat scanning/photography and TMQHPI scoring by a periodontist,
3. Supervised toothbrushing using the modified Bass technique for 2 minutes, followed by a final scan and photographs. Digital models will be used to quantify plaque-covered surface measures and to generate 3D maps of plaque-retentive areas.

Conditions

  • Dental Plaque Accumulation
  • Oral Hygiene, Oral Health
  • Dental Materials
  • Dental Plaque Imaging Methods
  • Dental Plaque Index

Interventions

DIAGNOSTIC_TEST

Intraoral scanning (TRIOS 3) with plaque disclosure assessment

Whole-arch intraoral scans were obtained with the TRIOS 3 intraoral scanner to generate 3D digital models for plaque/biofilm assessment. Scans are performed at standardized time points, including after plaque accumulation and after plaque disclosure, to document plaque distribution and enable computer-assisted quantification and 3D mapping.

DIAGNOSTIC_TEST

Conventional plaque scoring (TMQHPI) after plaque disclosure

Clinical plaque assessment using the Turesky modified Quigley-Hein Plaque Index performed after plaque disclosure by a calibrated examiner.

Sponsors & Collaborators

  • Trakya University

    lead OTHER

Principal Investigators

  • Ece Açıkgöz Alparslan · Trakya University

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-03-16
Primary Completion
2027-03-16
Completion
2027-03-24

Countries

  • Turkey (Türkiye)

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07421687 on ClinicalTrials.gov