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Primary stability determination of implants inserted in sinus augmented sites: 1-step versus 2-step procedure
Marco Degidi1, Giuseppe Daprile, Adriano Piattelli
1*Private Practice, Bologna, Italy. †Private Practice, Bologna, Italy. ‡Full Professor, Department of Medical, Oral, and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.
Implant Dentistry
|September 10, 2013
Summary
Dental implants placed immediately after sinus lifts achieve sufficient primary stability, comparable to those placed 6 months post-procedure. This indicates successful osseointegration in both immediate and delayed sinus augmentation scenarios.
Area of Science:
- Dental Implantology
- Oral Surgery
- Bone Grafting
Background:
- Sinus lifts are crucial for dental implant placement in the posterior maxilla.
- Assessing primary implant stability is vital for successful osseointegration.
Purpose of the Study:
- To compare the primary stability of dental implants placed immediately after sinus lift versus those placed 6 months later.
- To evaluate implant stability using insertion torque (IT) and resonance frequency analysis (RFA).
Main Methods:
- Two patient groups: immediate (Group A) and delayed (Group B) sinus lift implant placement.
- Sinus lifts used a 50% autogenous bone and 50% deproteinized bovine bone mineral mixture.
- Primary stability measured by IT and RFA; implant survival within 6 months was also recorded.
Main Results:
- No statistically significant differences in mean IT or RFA values between immediate and delayed implant placement.
- Mean IT: Group A (23.77 N·cm) vs. Group B (26.48 N·cm).
- Mean RFA (ISQ): Group A (65.25) vs. Group B (67.92). All implants osseointegrated.
Conclusions:
- Dental implants achieve sufficient primary stability regardless of immediate or delayed placement after sinus lift.
- The findings support the predictability of implant stability in both clinical scenarios.