Vertical bone augmentation with dental implant placement: Efficacy and complications associated with 2 different techniques. A retrospective cohort study

• Purpose: To compare retrospectively the efficacy of and complications associated with 2 different techniques for vertical bone augmentation at implant placement: autogenous particulated bone grafts covered either by nonresorbable titanium-reinforced e-PTFE barriers or by resorbable collagen barriers supported by osteosynthesis plates. Materials and Methods: Nineteen partially edentulous patients were consecutively treated: 11 patients had 18 implants treated for vertical bone augmentation with nonresorbable barriers, whereas 8 patients had 11 implants treated with resorbable barriers supported by osteosynthesis plates. Two independent assessors evaluated the amount of tissue regenerated and complications based on photographs and/or radiographs. Results: No implants failed. In the group treated with nonresorbable barriers, complete bone regeneration was obtained for 12 of 18 implants. More than 50% of the planned regeneration was obtained for the remaining 6 implants. One patient had a dehiscence with suppuration that required an additional surgical intervention to remove the barrier. For resorbable barriers, complete regeneration was obtained for 10 of 11 implants. Dehiscences occurred in 2 patients. In 1 case no treatment was necessary. The other patient was treated with applications of chlorhexidine get, more than 50% of the desired bone regeneration was obtained. Discussion and Conclusions: No statistically significant differences for the amount of regenerated tissue and complications were observed between the 2 techniques; however, the power of the study was too low to detect a difference, if any. Randomized clinical trials with a sufficient number of patients are needed to determine which could be the most effective technique for vertical ridge augmentation.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Nyckelord

alveolar distraction osteogenesis

deficient edentulous ridges

titanium mesh

humans

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