Marcelo Emir Requia Abreu

Sentimentos, Percepções e Manifestações de Pacientes e Profissionais Sobre a Cirurgia Ambulatorial de Terceiros Molares

Resumen pt: Objetivo: Avaliar sentimentos, percepcoes e manifestacoes de pacientes submetidos a exodontias de terceiros molares inferiores retidos e dos profissionai...

Effect of Recombinant Human Growth Hormone on Osseointegration of Titanium Implants: A Histologic and Biomechanical Study in Rabbits

To evaluate the action of recombinant human growth hormone (rhGH) on osseointegration of titanium implants in rabbits. Fourteen adult New Zealand rabbits, aged 30 weeks, were used in the study, and randomly divided into 2 groups. In each animal, 2 (2.2 mm × 6 mm) pure titanium implants were placed in the left tibia. In one group (test group), 1 IU (0.3 mg) of rhGH as a lyophilized powder was applied to each osteotomy site prior to implant placement. Only titanium implants were placed in osteotomy sites of the other group (control). Animals were humanely killed at 14 and 42 days after surgery, and samples were then prepared for histologic analysis and biomechanical test. The biomechanical test showed tensile pull-out stress values of 33.88 N/cm(2) for controls and 59.26 N/cm(2) for the rhGH group at 14 days and 25.99 N/cm(2) and 29.69 N/cm(2) for the control and the test group, respectively, at 42 days. Scanning electron microscope analysis showed more uniform and abundant bone tissue in contact with the implants for the test group at 14 days, and no differences between groups at 42 days. Furthermore, histologic analysis also showed accelerated bone repair in 14 days and a more advanced stage of bone remodeling for the rhGH-treated group when compared to controls after 42 days of repair. Such results show that the topical use of rhGH induces new bone formation in the early stages of bone repair and hence accelerates osseointegration of titanium dental implants.

Ferimento por arma de fogo com projétil alojado na fossa infratemporal: relato de caso

O objetivo deste artigo e relatar um caso clinico de ferimento por arma de fogo com projetil alojado junto ao teto da fossa infratemporal, no qual, em razao dos riscos de uma exploracao cirurgica para remocao, optou-se por tratamento conservador. Sao apresentadas uma revisao da literatura e uma discussao sobre o tratamento instituido.

Modulação do processo inflamatório agudo: terapia medicamentosa e laser não ablativo revisão de literatura

Diverse traumatisms may ori- ginate acute inflammatory pro- cess in anatomic regions treated by Oral and Maxillofacial Surgery. Modulation of this process occurs when initial inflammatory mani- festations overcome the benefit of tissue regeneration. The aim of this paper is to review the relevant literature on modulation of acute inflammatory process and evalu- ate the effectiveness of low level laser therapy on this process. Key words: anti-inflammatory, in- flammation, laser, low level laser therapy.