Journal Browser Advanced Search Help
Journal Browser Advanced search HELP
J Korean Acad Prosthodont. 2019 Jul;57(3):219-224. English. Original Article. https://doi.org/10.4047/jkap.2019.57.3.219
Mai HY , Lee DH .
Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea. deweylee@knu.ac.kr
Institute for Translational Research in Dentistry, Kyungpook National University, Daegu, Republic of Korea.
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 (α=.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.

Copyright © 2019. Korean Association of Medical Journal Editors.