Analise histologica e histomorfometrica do reparo osseo perimplantar em cães submetidos a instalação de implantes endosseos com um modelo de carga precoce em dois diferentes desenhos de implantes / Histological and histomorphometric analysis of perimplant osseous repair in dogs submitted to endosseous implant installation with early load model in two different implant design

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Several treatment types using prosthesis over implants have been reported, being the singles immediate loading therapy with more controversy. The meaning of the present study is established the characteristics of bone repair in dental implant submitted to immediate loading. It was performed a experimental model using dogs to value two different installations protocols of dental implants. It was done the extraction of the bilateral premolars of the jaw, installing the dental implants after 3 months of healing. The anterior implant was submitted to healing screw install of 7 mm (unitary immediate load model without oclusal contact) and the posterior ones were covered with cove screrw (immerse implant technique). Each hemi-jaw presented one cylindrical (Neodent Titamax CM®) or conical (Conexão Conect Ar®) with with anterior or posterior position, that was evaluated with scanning electron microscopy. The sacrifices were performed on three and six months. The specimens were decalcified and processed to begging its histological evaluation using descriptive and histomorphometric analyses. The statistical test T test was performed using significance index of 5%. In general, dental implants showed more bone formation on cervical region and less on apical area. The results demonstrated more bone formation on the immediate loading types, with no statistical significance. The conical ones presented more bone formation that cylindrical, but without statistical significance. This way it is possible to conclude that implants with immediate installation of healing screw, how immediately load model without oclusal contact (immediately restauration), have more osseous presence when compared to non load implant

ASSUNTO(S)

implantes dentários dental implants

ACESSO AO ARTIGO

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