Jaw, Edentulous, Poor Bone Quality
Conditions
Brief summary
The primary objective of the study is to evaluate the long-term survival rate of individual implants and prostheses when treating edentulous upper jaws of poor bone quality with Fixture MicroThread™ (Micro-Macro). Clinical study recruitment was stopped in year 2000 due to a decision to modify the product under study. This was a result of feedback regarding the subjective feeling during the installation procedure. There were no safety concerns w/r to the study products. Patients already included and treated in the study were monitored for the full duration of the study in accordance with the clinical study protocol.
Interventions
Fixture MicroThread (Micro-Macro) Ø 3.5 and 4.0 mm in lengths of 9, 11, 13, 15 and 17 mm.
Sponsors
Dentsply Sirona Implants and Consumables
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* 18 - 75 years of age * Bone quality class III or IV, (according to Lekholm & Zarb16) * Willing to give signed informed consent
Exclusion criteria
* Need for bone augmentation of the maxilla * Tobacco smoking more than 5 cigarettes/day * Any systemic disease or condition that would compromise post-operative healing and/or osseointegration * Systemic corticosteroids or any other medication that would compromise post-operative healing and/or osseointegration * Unable or unwilling to return for follow-up visits * Bruxism or other parafunctional activity
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Implant survival | Continuously during 5,5 years after implant placement |
Countries
Sweden, United States
Outcome results
None listed