Maxillary vertical alveolar ridge augmentation using sandwich osteotomy technique with simultaneous versus delayed implant placement: A proof of principle randomized clinical trial.

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Mohammed Al-Dubai, Ragia Mounir, Sherif Ali, Mohamed Mounir

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Mohammed Al-Dubai: Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Cairo University, Cairo, Egypt. ORCID
Ragia Mounir: Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.
Sherif Ali: Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Cairo University, Cairo, Egypt. ORCID
Mohamed Mounir: Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Cairo University, Cairo, Egypt. ORCID

PMID: 36239176 DOI: 10.1111/cid.13145

BACKGROUND: The sandwich osteotomy technique usually requires high surgical skills and prolonged intraoperative time and had some technical drawbacks with a subsequent deficient amount of vertical bone gain. The aim of this study was to evaluate the final vertical bone gain using sandwich osteotomy with simultaneous versus delayed implant placement in the anterior maxilla.
MATERIAL AND METHODS: This study included 16 patients having multiple missing maxillary anterior teeth with a vertically deficient alveolar ridge. Patients were randomly assigned into two equal groups. Both groups were treated using sandwich osteotomy with interpositional particulate bovine bone graft. In the study group (8 patients, 17 implants), the transport mobilized bone segment was fixed in position using simultaneous implant placement. Whereas in the control group (8 patients, 18 implants), micro-plates and screws were used, followed by a second-stage surgery for plates removal and delayed implant placement. Radiographic assessment included 4 months postoperative mean of vertical gain in alveolar ridge height, taken from cross-sectional cuts of cone beam CT.
RESULTS: The mean vertical bone gain in the study group was 4.04 ± 0.59 mm compared to 3.86 ± 0.52 mm in the control group with no statistically significant difference (p = 0.518). The mean value of bone gain percentage in the study group was 33.02% compared to 31.75% in the control group, with no statistically significant difference (p = 0.656).
CONCLUSION: The sandwich osteotomy technique with simultaneous implant placement is a reliable method for vertical ridge augmentation that eliminates the need for a secondary surgery.

dental implants inlay bone grafting sandwich osteotomy simultaneous implant vertical bone gain

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Humans

Animals

Cattle

Maxilla

Alveolar Ridge Augmentation

Dental Implants

Cross-Sectional Studies

Bone Transplantation

Osteotomy

Alveolar Process

Dental Implantation, Endosseous

Dental Implants

Randomized Controlled Trial Journal Article

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