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[Clinical and radiological results after augmentation procedures - a prospective study]
Karl Andreas Schlegel1, Tarek Karascholi, Matthias Fenner
1University Erlangen-Nuremberg, Department of Maxillofacial Surgery, Glückstrasse 11, 91054 Erlangen, Germany. andreas.schlegel@yahoo.de
Mund-, Kiefer- Und Gesichtschirurgie : MKG
|July 21, 2007
Summary
This five-year study evaluated dental implants in augmented atrophic jaws, finding a 96.6% survival rate and 94.04% success rate. Bone resorption was noted, particularly in the posterior maxilla, correlating with sulcus fluid flow rate.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Bone Augmentation
Background:
- Atrophic jaws present challenges for dental implant placement.
- Bone augmentation is a common procedure to enable implant rehabilitation.
- Long-term clinical outcomes of these procedures require thorough evaluation.
Purpose of the Study:
- To prospectively evaluate the five-year clinical outcomes of dental implants placed in augmented atrophic jaws.
- To assess implant survival and success rates.
- To analyze bone resorption patterns and influencing factors.
Main Methods:
- Prospective evaluation of 50 patients undergoing bone augmentation and dental implant placement.
- Use of 293 implants from five different systems.
- Clinical follow-up over five years, including measurements of bone resorption and sulcus fluid flow rate (SFFR).
Main Results:
- A cumulative implant survival rate of 96.6% and a success rate of 94.04% were achieved.
- Overall bone resorption after five years was 31.67%, with higher rates in the maxilla (35.88%) versus mandible (26.05%).
- Higher vertical bone loss was observed in posterior augmentation areas (38.72%) compared to anterior areas (28.26%).
- Increased SFFR significantly correlated with higher bone resorption, pocket depths, and reduced keratinized gingival width.
Conclusions:
- Dental implants in augmented atrophic jaws demonstrate high survival and success rates over five years.
- Bone resorption is a significant factor, influenced by anatomical location (maxilla vs. mandible, posterior vs. anterior).
- Sulcus fluid flow rate is a potential indicator of peri-implant bone health and resorption.