文章基本信息

标题：Histological and immunohistochemical evaluation in patients who underwent maxillary sinus lifting surgery using autogenous or heterogenous bone. A clinical randomised trial
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作者：Geraldo Luiz Griza ; Roberta Okamoto ; Daniela Colet 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2021
卷号：10
期号：4
页码：1-14
DOI：10.33448/rsd-v10i4.14143
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：Objectives: This study evaluated, through histological and immunohistochemical analysis the bone formation and remodeling after a maxillary sinus lift. Material and methods: 25 patients from 41 to 65 years of age, with inadequate bone volume in the posterior maxillary region and remaining native bone less than or equal to 5 mm, as measured radiographically, were selected and underwent maxillary sinus lift surgery, through the open technique. They were distributed in 3 groups: A - particulate, autogenous bone, AB - autogenous and heterogeneous bone, and B - only heterogeneous bone. Six months after this intervention, the patients were submitted to a surgery for the installation of implants and concomitant removal of the grafted bone sample from the surgical site. Results: The histological evaluation showed bone formation in the three groups, with presence of mature bone. In groups B and AB, the presence of granules of the biomaterial surrounded by bone tissue was observed. A statistical analysis showed significant difference (ANOVA p=0,002), suggesting greater bone formation in the autogenous group. In an immunohistochemical evaluation, no statistically significant differences were observed in the comparison between the experimental groups (A, B and AB), as well as in the proteins analyzed (OC: p= 0.657; VEGF: p= 0,133; TRAP: p= 0.163). Conclusion: The use of Bio-Oss ®, whether or not associated to autogenous bone, for a maxillary sinus lift through the side window technique results in bone repair. A predictable amount of bone formation is attained when this osteoconductive biomaterial is used.