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http://dx.doi.org/10.4047/jkap.2019.57.3.219

Time efficiency and operator convenience of using a micro-screw in image registration for guided implant surgery  

Mai, Hai Yen (Department of Prosthodontics, School of Dentistry, Kyungpook National University)
Lee, Du-Hyeong (Department of Prosthodontics, School of Dentistry, Kyungpook National University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.57, no.3, 2019 , pp. 219-224 More about this Journal
Abstract
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 (${\alpha}=.05$). 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 micro-screw for the image registration has no effect in working time reduction, but improves operator convenience and satisfaction.
Keywords
Micro-screw; Image registration; Computer-guided implant surgery; Working time; Convenience; Satisfaction;
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