*Corresponding author:Lili yang, Periodontics Department, The Affiliated Stomatological hospital of Kunming Medical University, China
Received: April 23, 2018; Published: April 30, 2018
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Background: Distraction osteogenesis is a biomechanical process where the application of incrementally increasing distances between living bones fragments (range of 0.5 to 1.0 mm per day) leads to the formation of new bone.
Objectives: The purposes of this study were twofold: (1) to evaluate the effectiveness of a light sensor in the assessment of distraction forces, and (2) to assess the accuracy of a newly-developed simple mechanism for measuring the distraction forces.
Materials and Methods: A modification of the simple mechanism was fabricated with standard loads of 10, 20 and 30N to simulate the resistance of the osteotomized bone segments during distraction osteogenesis. Measurements were performed with and without the aid of a light sensor using both a modified force gauge and a UTM. Measurements were repeated 30 times for each experimental setting. A paired t test was used to analyze the differences between the groups; Significance level was established at 0.01.
Results: Significant differences were observed in all load levels between measurements with and without the light sensor for both the modified force gauge and the UTM. However, no significant difference was observed in measurements performed with the light sensor between the modified force gauge and UTM. Moreover, measurement values were significantly higher without the use of the light sensor in all groups.
Conclusions: The use of a light sensor is an effective method to aid in the precise measurement of force values. The newly-developed simple mechanism to measure the distraction forces is accurate and reliable for assessing distraction forces at different levels.
Kewords: Tension Force Measurement; Simple Mechanism; Light Sensor; UTM