title: Bone Formation in Maxillary Sinus Lift Using Autogenous Bone Graft at 2 and 6 Months.
abstract: The aim of this study is to compare the bone formation in maxillary sinus lift with an autogenous bone graft in histological evaluation at 2 or 6 months. A comparative study was designed where 10 patients with missing teeth bilaterally in the posterior zone of the maxilla were selected. Patients received a particulate autogenous bone graft under the same surgical conditions, selecting a site to collect a biopsy and histological study at two months and another at six months postoperatively. Histomorphometry was performed and were used Kolmogorov-Smirnov test, student's t-test and Spearman's correlation coefficient, considering a value of p<0.05. Differences were observed in inflammatory infiltrate and vascularization characteristics; however, the group analyzed at two months presented 38.12% ± 6.64 % of mineralized tissue, whereas the group studied at 6 months presented an average of 38.45 ± 9.27 %. There were no statistical differences between the groups. It is concluded that the bone formation may be similar in intrasinus particulate autogenous bone grafts in evaluations at two or six months; under these conditions, early installation of implants is viable.
authors.affiliation: Mestrado em Clinica Odontológica, Faculdade de Odontología, Universidade Federal de Juiz de Fora, Minas Gerais, Brazil.
authors.forename: Henrique Duque
authors.initials: HD
authors.lastname: Netto
authors.affiliation: Mestrado em Clinica Odontológica, Faculdade de Odontología, Universidade Federal de Juiz de Fora, Minas Gerais, Brazil.
authors.forename: Maria das Graças Alfonso
authors.initials: MD
authors.lastname: Miranda Chaves
authors.affiliation: Mestrado em Clinica Odontológica, Faculdade de Odontología, Universidade Federal de Juiz de Fora, Minas Gerais, Brazil.
authors.forename: Beatriz
authors.initials: B
authors.lastname: Aatrstrup
authors.affiliation: Mestrado em Clinica Odontológica, Faculdade de Odontología, Universidade Federal de Juiz de Fora, Minas Gerais, Brazil.
authors.forename: Renata
authors.initials: R
authors.lastname: Guerra
authors.affiliation: Division of Oral and Maxillofacial Surgery & CEMyQ, Universidad de La Frontera, Temuco, Chile; Center for Biomedical Research, Universidad Autónoma de Chile, Temuco, Chile.
authors.forename: Sergio
authors.initials: S
authors.lastname: Olate
keywords: Autogenous graft; Maxillary sinus; Maxillary sinus lift