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Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Dec;106(6):806-11. doi: 10.1016/j.tripleo.2008.05.034. Epub 2008 Aug 20.

Comparison of stability of titanium and absorbable plate and screw fixation for mandibular angle fractures.

Author information

1
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Selcuk University, Konya, Turkey. dtaesen@hotmail.com

Abstract

OBJECTIVE:

The purpose of this experimental study was to compare the stability of titanium and absorbable plate and screw fixation systems for mandibular angle fractures.

STUDY DESIGN:

Twenty-one sheep hemimandibles were used to evaluate 3 different plating techniques. The groups were fixated with a single titanium plate, a single absorbable plate and double absorbable plates. A cantilever bending biomechanical test model was used for the samples. Each group was tested with vertical forces by a servohydraulic testing unit. The displacement values in each group at each 10 N stage up to 100 N were compared using the 2-way analysis of variance test.

RESULTS:

The displacement values for the 3 groups differed significantly (P < .05). The variance analyses showed that titanium plate placement had more favorable biomechanical behavior than others. In addition, the 2 absorbable plates group had more favorable biomechanical behavior than a single absorbable plate group but it was not significantly different at 10 to 40 N.

CONCLUSION:

The study demonstrated that titanium plate and screw fixation system had greater resistance to occlusal loads than absorbable plate and screw systems. In addition, a second absorbable plate orientation provides a more favorable biomechanical behavior than a single absorbable plate placement.

PMID:
18718777
DOI:
10.1016/j.tripleo.2008.05.034
[Indexed for MEDLINE]

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