3D scanners reveal where plaque hides on teeth and dental work

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * 18 years or older.  * Able and willing to provide written informed consent.  * Generally healthy and not using regular systemic medications.  * Have at least 6 teeth in each quadrant of the mouth.  * Have low plaque levels at baseline (plaque index \<10%).  * Do not have periodontal pockets deeper than 4 mm.  * In the upper front teeth (maxillary anterior) on the outer (vestibular) surfaces, participants must fit one of these predefined surface types: Natural tooth surface (no restoration ), direct composite restoration, or Indirect ceramic veneer restoration.  * No cavitated tooth decay on the surfaces to be assessed and no obvious surface defects that would clearly increase plaque retention. Exclusion Criteria: * Diagnosis of gingivitis or periodontitis.  * Regular use of mouthwash as part of daily oral hygiene.  * Use of antibiotics within the last 6 months.  * Smoking.  * Pregnant or breastfeeding.  * Presence of dental implants or removable dentures.  * Any systemic disease or medical treatment that could affect oral health or healing (examples include diabetes, cancer, disorders affecting bone metabolism, immunosuppressive therapy, chemotherapy, radiotherapy, or other conditions/medications affecting wound healing).  * Having a pacemaker or an implantable defibrillator.  * History of allergy or intolerance to study-related materials (e.g., ingredients of the plaque-disclosing agent or the lip/cheek retractor material).  * Defective fillings/restorations on the assessed surfaces that could increase plaque retention.  * Malocclusion or spacing between teeth (diastema).  * Gum recession affecting more than one-third of the root length.  * Wearing fixed orthodontic appliances (braces).  * Any physical, mental, or psychiatric condition that could interfere with understanding the study or completing the procedures