K08.1
Conditions
Interventions
Group 1: Customizing of an infra-contoured provisonal crown into a concave transmucosal contour.
Group 2: Customizing of an infra-contoured provisonal crown into a convex transmucosal contour.
Group 3
Sponsors
Zentrum für Zahnmedizin, Klinik für Rekonstruktive Zahnmedizin, Universität Zürich
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: • Informed Consent as documented by signature (Appendix Informed Consent Form) • Male and female patients from 18-80 years of age • Presence of a ASTRA Tech Implant with an implant diameter of 3.6 or 4.2 mm in the maxillary or mandibular esthetic region (premolar to premolar). • Need for a single implant-supported crown • Implant position enabling screw-retained crown • Presence of at least 1 neighbouring tooth
Exclusion criteria
Exclusion criteria: • Smoking more than 15 cigarettes a day • Poor oral hygiene (Plaque Index over 30%) • Women who are pregnant or breast feeding at the date of inclusion • Known or suspected non-compliance, drug or alcohol abuse
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome is the stability of the buccal margo mucosae six months after insertion of the final reconstruction. It is evaluated by measuring the difference of the clinical crown length at baseline and six months later (recession). | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcome variables include the clinical feasibility, investments in time and costs for all three treatment modalities and esthetic outcomes (Photos, Papilla-index). These parameters will be assessed 1, 3 and 5 years after final reconstruction. | — |
Countries
Switzerland
Contacts
Public ContactDaniel Thoma
Zentrum für Zahnmedizin, Klinik für Rekonstruktive Zahnmedizin, Universität Zürich
Outcome results
None listed