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The Accuracy of Guided Template in Implant Placement of Computer-based Guded Surgery: a Pilot Study

Author: YuDan
Tutor: WangHuiMing
School: Zhejiang University
Course: Oral and Maxillofacial Surgery
Keywords: Computer - aided surgical template Planting positioning Planting drill and guide sleeve gap Maximum tilt angle Implant position
CLC: R783.6
Type: Master's thesis
Year: 2011
Downloads: 51
Quote: 0
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Abstract


Objective: Analysis planting drill with guide thimbles gap in extreme cases the implantation position the influence of the maximum angular deviation , the clear actual osteotomy preparation the steps of generating the maximum angle of deviation and the cumulative maximum angular deviation . Methods : planting drill and guide sleeve into a maximum deflection angle , Simplant / Classic SurgiGuides surgical template in turn guide the planting drill (02.2mm, 02.8mm, 03.5mm) planting positioning on some teeth missing plastic model . Measurement template guided planting fossa the actual implantable angle and the ideal angle deviation from the analysis of the relationship between the maximum angle of deviation compare the template reaming and progressively reaming . Results : different methods , each template (separately or stepwise ) to guide the positioning generating maximum angular deviation there are theoretical values ??significant difference , the maximum angular deviation of Template A (5.15 ° ± 1.27 °; 4.32 ° ± 1.23 °) was significantly higher than template B (1.42 ° ± 0.78 ° ; 1.08 ° ± 0.33 ° ) , C (3.00 ° ± 0.64 °; 2.35 ° ± 0.81 ) P value less than 0.05 . The template C significantly greater than the template B ( p = 0.01988 ; p ( stepwise ) = 0.02667 ) . Prepared by different methods of planting nest maximum angle of deviation , no significant difference . Prepared by two methods under the template A , C of the actual implantation angle deviation were significantly higher than the theoretical value ( 1.798 ° , 1.581 ° ) . Conclusion: computer - aided surgical template to guide Pioneer Pioneer drilling template \In extreme cases , Pioneer template to guide the actual maximum angle deviation is greater than the theoretical value , require the surgery paid special attention to the first positioning accuracy . Planting drill and the choice of the the guide thimbles best gap size , as well as step by step reaming each step in the preparation of cumulative maximum deviation respectively reaming whether there were significant differences between the research will be to further clarify . Intraoperative template retention stability is a key prerequisite for precise transfer .

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