Biomechanical evaluation of a new design titanium miniplate for the treatment of mandibular angle fractures


SUER B. T. , Kocyigit I. D. , Kaman S., TÜZ H. H. , Tekin U., Atil F.

INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, cilt.43, ss.841-845, 2014 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 43 Konu: 7
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.ijom.2014.01.011
  • Dergi Adı: INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
  • Sayfa Sayıları: ss.841-845

Özet

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.