Calvarial graft resorption index in the reconstruction of the maxillary sinus in patients with atrophic maxillas: a prospective clinical study |
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| Authors: | RLL Macedo D Ponzoni E Vedovatto FA de Carvalho PSP de Carvalho |
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| Affiliation: | 1. São Paulo, Brazil;2. Department of Surgery and Integrated Clinic, Araçatuba School of Dentistry – UNESP, São Paulo, Brazil;3. São Leopoldo Mandic Postgraduate Center;4. Bauru School of Dentistry, University of São Paulo – USP, Brazil;1. Department of Oral And Maxillofacial Surgery, Dental School, Qazvin University of Medical Sciences, Qazvin, Iran;2. Private Practice;3. Department of Pediatric Dentistry, Dental School, Qazvin University Of Medical Sciences, Qazvin, Iran;1. Oral Surgery Department, Division of Dentistry, School of Medicine, The University of Manchester, Manchester, ML13 9PL, UK;2. Eastman Dental Institute – University College of London, London, WC1X 8LT, UK;3. Oral Surgery Department, King’s College Hospital, London, UK;4. Oral and Maxillofacial Surgery Department at Hospital Leforte, São Paulo, Brazil;5. Oral and Maxillofacial Surgery Department at Hospital Cristovão da Gama, Santo André, Brazil;1. Faculty of Health, Social Care and Medicine, Edge Hill University, Ormskirk, L39 4QP;2. Liverpool Head and Neck Centre, Liverpool University Hospital Aintree, Liverpool, UK;1. School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran;2. Taleghani Hospital Research Development Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran;3. Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran;4. University Medical Center Hamburg- Eppendorf, Hamburg, Germany |
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| Abstract: | The objective of this study was to assess the resorption index of particulate calvarial grafts in maxillary sinuses of patients undergoing total reconstruction of an atrophic maxilla with residual alveolar bone that was less than, or equal to, 3 mm thick. Twenty-one maxillary sinus floor elevations were carried out using particulate calvarial grafts in 11 individuals with totally edentulous maxillas. All patients had computed tomography (CT) before (T0), and 48 hours (T1) and six months after surgery (T2). For each CT scan, linear measurements were taken of sections of the anterior, medial, and posterior regions of the maxillary sinus. There was a significant increase in the height of the maxillary sinus floor when T0 was compared with T1 (p = 0.001). There was a statistically significant reduction in all maxillary sinus measurements when T1 was compared with T2; the mean height reduction being 2.36 mm (16.87%) in the anterior region, 3.53 mm (22.47%) in the medial region, and 2.21 mm (22.78%) in the posterior region (p = 0.001). Mean resorption was 20.7%. Autogenous calvarial bone used alone is an option for graft material in pneumatised maxillary sinuses and in cases where there is limited alveolar bone. |
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| Keywords: | autogenous bone graft calvaria elevation of maxillary sinus floor |
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