Lateral ridge augmentation in the posterior part of the mandible with an autogenous bone block graft harvested from the ascending mandibular ramus. A 10-year retrospective study.

PURPOSE

The objective of the present retrospective study was to assess the long-term implant treatment outcome and patient satisfaction after lateral ridge augmentation in the posterior mandible with autogenous bone block graft harvested from the ascending mandibular ramus.

MATERIALS AND METHODS

Seventy-four lateral ridge augmentation procedures in the posterior mandible with an autogenous bone block graft harvested from the ascending mandibular ramus and delayed placement of 87 implants was conducted in 46 consecutive patients from 2002-2006. Records and radiographs were retrospectively analyzed. Twenty-four patients responded to a 10-years follow-up examination including 39 lateral ridge augmentation procedures and 48 implants. Survival of suprastructures and implants, peri-implant marginal bone loss, patient perception and professional evaluation of the final implant treatment was assessed after 10 years.

RESULTS

The 10-year survival of suprastructures and implants was 100% as all the implants and suprastructures were present with limited peri-implant marginal bone loss. The patients were highly satisfied with the esthetic and implant treatment outcome.

CONCLUSION

Lateral ridge augmentation in the posterior mandible with autogenous bone block graft from the ascending mandibular ramus is characterized by high long-term implant survival rate and patient satisfaction.