A novel adhesive system for maxillofacial fractures

IntroductionPlates and screws routinely fix fragments until the completion of the healing process, which has its own complications in some critical fractures. To overcome these drawbacks bone adhesives are developed for the immobilization of fractured bones.ObjectivesIn this in-vitro study we compared the bond strength obtained by immobilization of the bone fragments using plates and screw and new adhesive containing BTDMA monomer.MethodsBone fractures were simulated in bovine’s mandibular bone using an electrical saw. The bone fragments were randomly allocated in different groups and were immobilized with either plate and screws and adhesive containing 0,10, 15% BTDMA. After 24 hours tensile bond strength was calculated using a universal testing machine. One-way ANOVA and Tukey post hoe test were used for statistical analysis.ResultsSignificant differences were found regarding the bond strength of bone fixation in 4 groups using bone adhesives or plate technique (P<0.001). The highest bond strength was recorded for the plate group and the least was related to the base adhesive. Significant differences existed between all bone adhesives as declared by paired comparison (p<0.05).ConclusionBond strength is just one of the numerous properties that an adhesive should have and more studies must be done on these kinds of adhesives.

Keywords:

Tensile bond strength , Bone adhesives , Maxillofacial fractures , Plates , Screws