atrophic posterior maxilla reduced bone height of the sinus floor
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: * Male or female patients aged 18-75 years * Presence of a unilateral or bilateral partial maxillary edentulism involving the premolar/molar areas * Presence of a residual posterior maxillary bone height between 2 and 6 mm * Patient qualifies for sinus augmentation surgery * Smoking *10 cigarettes per day
Exclusion criteria
Exclusion criteria: * Maxillary sinus pathology * Presence of a local or systemic disease or treatment affecting bone formation * Contamination of the (area around the) operative field * Periodontitis * Infectious diseases * Bone metabolic disease * Neurological disorders that could influence mental validity * Pregnant or breast-feeding women * Cancer therapy including immune-suppression, chemotherapy and radiation * Patients in which primary stability could not be established * Previous entry into this study or participation in any other clinical trial within 30 days * Smoking >10 cigarettes per day
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - Percentage of new bone formation in the augmented sinus floor by histomorphometrical analysis of biopsy specimens at 5 months of follow up. | — |
Secondary
| Measure | Time frame |
|---|---|
| - Implant survival rate and adverse events during 17 months of follow up. - Augmented bone height as measured by CBCT at 5, 11 and 17 months of follow up. - Implant stability quotient (ISQ) as measured by resonance frequency analysis (RFA) at 5 months (primary stability) and 11 months of follow-up. - Scoring of gingival index, supra-gingival plaque index, and dichotomous bleeding index 17 months after surgery. - Probing depth of implant and adjacent teeth (buccal, distal, palatinal, mesial) at 17 months after surgery. - Pain by the Visual Analogue Scale (VAS-score) at visit 2 (baseline) to 6. | — |
Countries
Netherlands