K02.5 K08.81 S02.5 K02.1 K02.2 K02.9
Conditions
Interventions
Group 1: The deeply destroyed tooth has to be reconstructed and needs a root canal treatment. After that it will have to be restored (e.g. with a crown). In order to ensure sufficient crown retention
Sponsors
Universitätsklinik Ulm
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Subjects with the treatment need for one deeply destroyed front tooth or premolar with a proximal distance = 7 mm will be included. Decoronated teeth with a supra-gingival amount of hard tissue after crown preparation of less than 2 mm in height will be receiving a surgical crown lengthening in order to ensure sufficient retention.
Exclusion criteria
Exclusion criteria: Minors or persons incapable of contracting; pregnant women; alcohol or drug addicts; patients with an existing infectious disease as hepatitis or HIV/AIDS; patients where an existing general disease means a contraindication for an implantation; patients with a severe diabetes; patients with a periodontally harmed abutment tooth (degree of tooth mobility > 1 and/or a pocket depth > 3.5 mm); patients with insufficient oral hygiene (PI > 1, BOP positive on more than 20% of all teeth);patients, who would be in a conflict of interests due to their participation in another study; patients, who did participate in another clinical study within one month prior to the beginning of the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Success without technical or biological treatment need after 5 years, Cost-effectiveness analysis | — |
Secondary
| Measure | Time frame |
|---|---|
| Tooth or implant loss (yes/no) | — |
Countries
Germany
Contacts
Public ContactHeike Rudolph
Universitätsklinikum Ulm, Klinik für Zahnärztliche Prothetik
Outcome results
None listed