Maxillary sinus floor elevation using the (transalveolar) osteotome technique with or without grafting material. Part I: Implant survival and patients' perception

Bjarni E. Pjetursson, Claude Rast, Urs Brägger, Kurt Schmidlin, Marcel Zwahlen, Niklaus P. Lang

Research output: Contribution to journalArticlepeer-review

103 Citations (Scopus)

Abstract

Objectives: To analyze the survival and success rates of implants installed utilizing the (transalveolar) osteotome technique, to compare peri-implant soft tissue parameters and marginal bone levels of osteotome-installed implants with implants placed using standard surgical procedures, and to evaluate patient-centered outcomes. Material and methods: During 2000 to 2005, 252 Straumann® dental implants were inserted in 181 patients. The surgical technique was a modification of the original osteotome technique presented by Summers. In addition to the clinical examination, the patients were asked to give their perception of the surgical procedure, utilizing a visual analogue scale. Results: The cumulative survival rate of the osteotome-installed implants after a mean follow-up time of 3.2 years, was 97.4% (95% confidence intervals: 94.4-98.8%). From the 252 implants inserted, three were lost before loading and another three were lost in the first and second year. According to residual bone height the survival was 91.3% for implant sites with ≤4 mm residual bone height, and 90% for sites with 4 mm and 5 mm, when compared with that of 100% in sites with bone height of above 5 mm. According to implant length the survival rates were 100% for 12 mm, 98.7% for 10 mm, 98.7% for 8 mm and only 47.6% for 6 mm implants. Soft tissue parameters (pocket probing depth, probing attachment level, bleeding on probing and marginal bone levels) did not yield any differences between the osteotome-installed and the conventionally placed implants. More than 90% of the patients were satisfied with the implant therapy and would undergo similar therapy again if necessary. The cost associated with implant therapy was considered to be justified. Conclusion: In conclusion, the osteotome technique was a reliable method for implant insertion in the posterior maxilla, especially at sites with 5 mm or more of preoperative residual bone height and a relatively flat sinus floor.

Original languageEnglish
Pages (from-to)667-676
Number of pages10
JournalClinical Oral Implants Research
Volume20
Issue number7
DOIs
Publication statusPublished - Jul 2009

Other keywords

  • Biological complications
  • Bone augmentation
  • Bone grafting
  • Complications
  • Crestal approach
  • Dental implants
  • Failures
  • Longitudinal
  • Osteotome technique
  • Patients' perception
  • Patients' satisfaction
  • Peri-implantitis
  • Sinus augmentation
  • Sinus floor elevation

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