Tooth defect
Conditions
Interventions
Thin phenotype:The method for determining periodontal phenotype is as follows: The subject lies supine on the chair with the maxillary occlusal plane perpendicular to the ground. The periodontal probe
Thick phenotype:In the thick phenotype group, the contour of the periodontal probe cannot be visualized through the gingival tissue.
Sponsors
Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1.18-65 years old; 2.Patients with single anterior tooth (11 or 21) defect requiring crown restoration; 3.The periodontium was healthy, with no redness, swelling, hyperplasia or recession of the gingiva; 4.No bleeding was found on periodontal probing, the depth of gingival sulcus was 1-2mm, and the gingival index and plaque index score were 0; 5.The tested tooth is not loose or loose less than I°, no alveolar bone resorption was observed on X-ray; 6.No systemic disease, can maintain oral hygiene independently.
Exclusion criteria
Exclusion criteria: 1.The test tooth has a defect to the subgingival region; 2. The tested tooth has a history of periodontal surgery; 3.Pregnant women, lactating women, smokers or those with gingival inflammation during follow-up visits; 4.Have a history of long-term medication use; 5.Severe malocclusion of the anterior teeth; 6.Refusing to participate in experiments.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Amount of gingival recession; | — |
Secondary
| Measure | Time frame |
|---|---|
| Probing depth (PD);Bleeding on probing (BOP);Gingival Index (GI);Plaque Index (PLI);Intraoral digital impressions;Restoration evaluation (according to the U.S. Public Health Service criteria, USPHS);Patient satisfaction assessment; | — |
Countries
China
Contacts
Public ContactFu Baiping
Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine
Outcome results
None listed