Evaluation of the Split-crest Technique with Simultaneous Implant Placement in Atrophic Edentulous Maxillary and Mandibular Bone: A 5-Year Follow-up Study
Houssam Abou Hamdan
*
Department of Periodontology, Faculty of Dental Medicine, Lebanese University, Lebanon.
Georges Aoun
Department of Oral Medicine and Maxillofacial Radiology, Faculty of Dental Medicine, Lebanese University, Lebanon.
Jean Nassar
Department of Periodontology, Faculty of Dental Medicine, Lebanese University, Lebanon.
Talal H. Salame
Department of Oral Rehabilitation, Faculty of Dentistry, University of Sydney, Australia.
*Author to whom correspondence should be addressed.
Abstract
Aim: To evaluate the behavior of the alveolar ridge split technique in a series of surgical cases.
Materials and Methods: One hundred and fifty implants were included in this study for a total of 60 patients. The surgeries consisted of a mid-crestal incision and subsequent bone management with a piezoelectric system. The implants were placed after the alveolar bone was expanded by about 3mm and present bony defects were filled by a mixture of 50% autogenous bone and a xenograft (Bio-Oss®). Bone fracture of the buccal alveolar plate occurred in 8 cases, and those were stabilized with osteosynthesis screws. Implants were simultaneously placed in 140 cases, out of them 4 failures occurred due to membrane exposition.
Results: The osseointegration success was estimated to be 97.5%.
Conclusion: This study concluded that the bone splitting/expansion seem to be a reliable, predictable, relatively noninvasive technique with limited intraoperative complications.
Clinical significance: The study revealed that the alveolar ridge split can be used as an effective technique for atrophic edentulous maxillary and mandibular bone
Keywords: Alveolar ridge split technique, bone atrophy, bone graft, dental implants, piezosurgery