Comparison of the resistance of miniplates and microplates to various in vitro forces

Comparación mecánica de dos sistemas de fijación interna rígida utilizados en la fijación de fracturas faciales (estudio in vitro)

“…In 2005, Choi et al 25 used beef ribs to simulate fractures in edentulous mandibles and to analyze the mechanical behavior of the system using different strategies, but according to the findings by Hegtvedt et al, 26 the mechanical behavior of materials shows differences when they are evaluated separately than when fractures are simulated using animal bones.…”

In vitro resistance of titanium and resorbable (poly l-co-dl lactic acid) osteosynthesis in mandibular body fracture

“…2 Surgical treatment has been the choice in many cases, with good results. 3,4 One of the options for osteosynthesis in the area of tension and compression 5 has been employed with great success and has demonstrated great versatility when different types of systems are used with monocortical or bicortical screws, depending on the area of approach. Different technologies, including resorbable internal fixation systems, have been used in different cases of maxillofacial surgery with good results.…”

Avaliação da estabilidade na fixação da osteotomia sagital mandibular utilizando parafusos bicorticais inseridos com angulação de 60° e 90°. Estudo biomecânico em mandíbulas de carneiro

“…O padrão de falha se deu igual nos dois grupos estudados. KAMEYAMA, 1995;KOHN et al, 1995;SCHWIMMER et al, 1994;THROCKMORTON et al, 1992) ERKMEN et al, 2005aERKMEN et al, , 2005bFOLEY, 1994;FOLEY et al, 1989;HAUG, 1996;KIM et al, 1993;KOHN et al, 1995;HOLWEG;SCHUBERT, 1999;MURPHY;BARBER, 1997;OZDEN et al, 2006;SHETTY, 1997;SHETTY et al, 1996aSHETTY et al, , 1996bTHARANON, 1998; CROFTS et al, 1990;FOLEY;BECKMAN, 1992;GOMES;GUIMARÃES FILHO;MAZZONETTO, 2003;HAUG, 1993;PUNJABI, 1999;HEGTVEDT;MICHAELS;BEALS, 1994;IKEMURA et al, 1984IKEMURA et al, , 1988LEE;PIECUCH, 1992;LOUKOTA;SHELTON, 1995;MURPHY;BARBER, 1997 ARMSTRONG et al, 2001). Entretanto, num modelo experimental essa falência do sistema de fixação pode ser definida como um ponto de inflexão entre a fase elástica e plástica na curva de carga versus deslocamento (EDWARDS; DAVID, 1996;…”