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Sandwich Osteotomies to Treat Vertical Defects of the Alveolar Ridge

Nóia, Claudio Ferreira PhD; Ortega-Lopes, Rafael PhD; Kluppel, Leandro Eduardo PhD; Sá, Bruno Costa Martins de PhD

doi: 10.1097/ID.0000000000000522
Basic and Clinical Research

Purpose: To evaluate the vertical bone gain after osteotomy sandwich.

Materials and Methods: Fourteen patients (mean age, 41 years) underwent 17 procedures of osteotomy sandwich. Of these 17 procedures, 15 involved reconstructive surgery and 2 involved the repositioning of implants. The patients were submitted to computed tomography before the surgical procedure and 4 months after the completion of the graft, with measurements taken to assess the vertical gain that had been achieved.

Results: The results confirmed a satisfactory vertical gain in all cases (mean, 5.12 mm). The use of autogenous graft or biomaterial particles (in isolation) between the osteotomized segments proved to be viable. Three patients reported postoperative paresthesia, which healed spontaneously after 3 months. One patient exhibited dehiscence due to not following the postoperative recommendations. Forty implants were installed in the grafted regions, and 2 implants were repositioned.

Conclusion: The technique of sandwich osteotomy was found to be effective for height gain, and different materials can be used between the osteotomized segments.

*Professor, Dentistry Department, University of Araras Dental School, Araras, Brazil.

Professor, Dentistry Department, APCD Piracicaba Dental School, Piracicaba, Brazil.

Professor, Dentistry Department, Parana Federal University Dental School, Curitiba, Brazil.

§Professor, Dentistry Department, College Ciodonto Dental School, Porto Velho, Brazil.

Reprint requests and correspondence to: Claudio Ferreira Nóia, PhD, Dentistry Department, University of Araras (UNIARARAS), Avenida Doutor Maximiliano Baruto, 500, Jardim Universitário, Araras 13607-339, Brazil, Phone/Fax: (55)19-98323 9526, E-mail:

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