KMID : 0362420190570030219
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Journal of Korean Academy of Prosthodontics 2019 Volume.57 No. 3 p.219 ~ p.224
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Time efficiency and operator convenience of using a micro-screw in image registration for guided implant surgery
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Mai Hai Yen
Lee Du-Hyeong
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Abstract
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Purpose: The image registration of radiographic image and digital surface data is essential in the computer-guided implant guide system. The purpose of this study was to examine the effects of using micro-screw on the working time and convenience of operators in the process of image matching for guided implant surgery.
Materials and methods: A mandibular dental model was prepared in partial edentulism for Kennedy class I classification. Two micro-screws were placed on the each side of retromolar area. Radiographic and scan images were taken using computed-tomography and digital scanning. The images were superimposed by 12 operators in software in two different conditions: using remaining teeth image alone and using teeth and micro-screws images. Working time, operator convenience and satisfaction were obtained, and analyzed using the Mann-Whitney U test (¥á=.05).
Results: The working time was not statistically different between image registration conditions (P>.05); however, operator convenience and satisfaction were higher in the teeth and micro-screw assisted condition than in the teeth-alone assisted condition (P<.001).
Conclusion: The use of microscrew for the image registration has no effect in working time reduction, but improves operator convenience and satisfaction.
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KEYWORD
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Micro-screw, Image registration, Computer-guided implant surgery, Working time, Convenience, Satisfaction
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