title: Evaluation of in vitro resistance of different 2.0-mm titanium  plates on the mandibular angle sectioning.
abstract: OBJECTIVE
  The purpose of this study was to compare, by mechanical in vitro testing, a regular 5-hole plate and a long 4-hole plate with a regular 4-hole plate, applied to stabilize a simulated mandibular angle fracture.
  
  
  METHODS
  The plates from the 2.0-mm titanium-based system were adapted and stabilized passively in the same site in both groups using four screws, 6 mm long. During the resistance-to-load test, the force was applied perpendicular to the occlusal plane at three different points: first molar at the plated side, first molar at the contralateral side, and between the central incisors.
  
  
  RESULTS
  The regular 5-hole plates and longer 4-hole plates were superior to the regular 4-hole plates. Furthermore, no statistically significant difference was found between the regular 5-hole plates and long 4-hole plate.
  
  
  CONCLUSIONS
  The length and shape of plates did not interfere with the effectiveness to stabilize the fragments.
  
  
  OBJECTIVE
  The purpose of this study was to compare, by mechanical in vitro testing, a regular 5-hole plate and a long 4-hole plate with a regular 4-hole plate, applied to stabilize a simulated mandibular angle fracture.Study design The plates from the 2.0-mm titanium-based system were adapted and stabilized passively in the same site in both groups using four screws, 6 mm long. During the resistance-to-load test, the force was applied perpendicular to the occlusal plane at three different points: first molar at the plated side, first molar at the contralateral side, and between the central incisors.
  
  
  RESULTS
  The regular 5-hole plates and longer 4-hole plates were superior to the regular 4-hole plates. Furthermore, no statistically significant difference was found between the regular 5-hole plates and long 4-hole plate.Conclusions The length and shape of plates did not interfere with the effectiveness to stabilize the fragments.
authors.forename: Marco Aurélio Kenichi
authors.initials: MA
authors.lastname: Yamaji
authors.forename: Patrício José de
authors.initials: PJ
authors.lastname: Oliveira Neto
authors.forename: Michel de Campos
authors.initials: Mde C
authors.lastname: Ribeiro
authors.forename: Lucas Cavalieri
authors.initials: LC
authors.lastname: Pereira
authors.forename: Márcio de
authors.initials: Md
authors.lastname: Morais
authors.forename: Cássio Edvard
authors.initials: CE
authors.lastname: Sverzut
authors.forename: Alexandre Elias
authors.initials: AE
authors.lastname: Trivellato
mesh_terms: D001696:Biomechanical Phenomena; D001860:Bone Plates; D001863:Bone Screws; D004867:Equipment Design; D006801:Humans; D066298:In Vitro Techniques; D008337:Mandibular Fractures / Q000601:surgery*; D014025:Titanium
chemical_list: D014025:Titanium