K08.1
Conditions
Interventions
Group 1: Ridge preservation with Bio-Oss® Collagen at the bone level and application of a collagen matrix
Group 2: Ridge preservation with Bio-Oss® Collagen at the bone level without application of a
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 • Requiring extraction of at least one upper or lower asymptomatic front tooth or premolar • Bleeding on probing = 20% • Plaque index = 20% • Systemically healthy
Exclusion criteria
Exclusion criteria: • Women who are pregnant or breast feeding at the date of inclusion • Known or suspected non-compliance, drug or alcohol abuse • Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant • Smoking more than 20 cigarettes/day
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Loss of volume between pre-extraction and 8 weeks based on volumetric measurements (by superimposition of the scanned models). | — |
Secondary
| Measure | Time frame |
|---|---|
| • clinical condition of soft tissues at 8 weeks • The height of the oral and buccal aspect of the alveole will be measured clinically (at Visit 5). • Thickness of the buccal bone crest, bony horizontal ridge width and dimensional changes are evaluated by CBCT scans (Between extraction and 6 weeks). • A histologic assessment at the implant site will be performed at implant placement (at Visit 5). • Ridge width will be analysed (at Visit 5). • Volumetric changes of soft and hard tissues, peri-implant health as well as implant survival up to five years after crown insertion | — |
Countries
Switzerland
Contacts
Public ContactDaniel Thoma
Zentrum für Zahnmedizin, Klinik für Rekonstruktive Zahnmedizin, Universität Zürich
Outcome results
None listed