title: Biomechanical evaluation of a new design titanium miniplate for the treatment of mandibular angle fractures.
abstract: The optimal management of mandibular angle fractures remains controversial. The aim of this experimental study was to test the stability and resistance to mechanical force of a new titanium miniplate design. Thirty fresh sheep hemimandibles, sectioned at the angle region, were used to evaluate two plating techniques. One group received fixation via a new design single non-compression titanium miniplate and the second group via a six-hole straight non-compression titanium miniplate. A custom-made biomechanical test model was used for the samples. Each hemimandible was subjected to compressive and tensile forces using an Instron machine. The biomechanical forces (N) that caused 4-mm displacement or fixation loosening were compared. Comparison between the groups showed that fixation with the new design miniplate had more resistance to lateral compression forces than with a six-hole straight miniplate (P<0.009). Moreover, the new design miniplate fixation displayed more resistance to vertical compression and tensile forces (P>0.46 and P>0.61, respectively). The study demonstrated that mandibular fracture fixation with the new design non-compression titanium miniplate offered greater resistance to lateral displacement forces and may also provide increased resistance to vertical compressive and tensile forces than a conventional six-hole straight miniplate.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Gülhane Military Medical Academy, Haydarpasa Teaching Hospital, Uskudar, Istanbul, Turkey. Electronic address: berkaysuer@hotmail.com.
authors.forename: B T
authors.initials: BT
authors.lastname: Suer
authors.affiliation: Department of Oral and Maxillofacial Surgery, Kirikkale University, School of Dentistry, Kirikkale, Turkey.
authors.forename: I D
authors.initials: ID
authors.lastname: Kocyigit
authors.affiliation: Department of Oral and Maxillofacial Surgery, Kirikkale University, School of Dentistry, Kirikkale, Turkey.
authors.forename: S
authors.initials: S
authors.lastname: Kaman
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hacettepe University, School of Dentistry, Ankara, Turkey.
authors.forename: H H
authors.initials: HH
authors.lastname: Tuz
authors.affiliation: Department of Oral and Maxillofacial Surgery, Kirikkale University, School of Dentistry, Kirikkale, Turkey.
authors.forename: U
authors.initials: U
authors.lastname: Tekin
authors.affiliation: Department of Oral and Maxillofacial Surgery, Kirikkale University, School of Dentistry, Kirikkale, Turkey.
authors.forename: F
authors.initials: F
authors.lastname: Atil
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D001860:Bone Plates; D003799:Dental Stress Analysis; D005593:Fracture Fixation, Internal / Q000295:instrumentation*; D066298:In Vitro Techniques; D008337:Mandibular Fractures / Q000601:surgery*; D011474:Prosthesis Design; D034561:Sheep, Domestic; D014025:Titanium
chemical_list: D014025:Titanium
keywords: mandibular angle fracture; miniplate; new design miniplate; osteosynthesis; stability