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ORIGINAL ARTICLE
Year : 2015  |  Volume : 18  |  Issue : 5  |  Page : 589-593

Biomechanical comparison of osteosynthesis with poly-L-lactic acid and titanium screw in intracapsular condylar fracture fixation: An experimental study


1 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ordu University, 52100 Ordu, Turkey
2 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ondokuz Mayis University, 55100, Samsun, Turkey
3 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ataturk University, 25240 Erzurum, Turkey

Correspondence Address:
M E Polat
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ataturk University, 25240 Erzurum
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1119-3077.158946

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Background and Aims: The aim of this study was to compare the biomechanical stability of poly-L-lactic acid and titanium screws in the fixation of intracapsular condylar fractures, in 10 polyurethane hemimandibles. Materials and Methods: Artificial intracapsular fractures were created with a steel disk and electronic micromotor. The first group was fixed with 15 mm long self-tapping 2.0 mm system titanium screws and the second group was fixed with 15 mm long 2.4 mm bioresorbable screws. Linear loads of 25, 50, 75, 100 N was applied in anteroposterior direction to the hemimandibles and the data were transmitted directly from the load cell to a computer that shows emergent results of material characteristics under same forces as a graphic containing force and displacement. Results: The results show that there were no significant differences between the two methods, with 25 N of loading. (P > 0,05) The difference became significant with a higher value of loading. Conclusion: The results suggest that treatment with a single resorbable screw is not functionally stable as a single titanium screw.


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