Tolerance within the sleeve inserts of different surgical guides for guided implant surgery
Tolerance within the sleeve inserts of different surgical guides for guided implant surgery
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DOI：
10.1111/j.1600-0501.2012.02436.x
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发表时间：
2013-06-01
影响因子：
4.3
通讯作者：
Quirynen, Marc
中科院分区：
文献类型：
--
作者：
Koop, Richard;Vercruyssen, Marjolein;Quirynen, Marc
目的近年来，引导种植手术已被引入，一些研究证实了其准确性。虽然这些研究报告了整个手术的准确性，但本实验希望评价单独钻孔手术期间可能发生的偏差程度，这是由于套筒插入物中钻头的公差造成的。材料和方法在有机玻璃盒中进行钻孔，钻头在套筒插入件内具有最大倾斜度。评价了不同的袖套插入物、袖套位置、袖套高度、袖套插入物高度和直径。结果两种套筒式种植体的最大成角偏差为5.2 °，13 mm种植体的最大水平偏差在种植体肩部为1.3mm，在顶点为2.4mm。如果套筒在有机玻璃盒上方的距离变小，并且手持套筒插入物的偏差小于钻头手持套筒插入物的偏差，则这些偏差减小。植入物长度越长、钻键直径越大、套筒和/或钻键高度越短，偏离越大。结论在光固化快速成型导向器的手术中，为了使手术偏斜最小，钻的中心位置平行于圆柱体是非常重要的。使用较长的钻键和钻套对于获得最佳精度至关重要。
Objectives Recently, guided implant surgery has been introduced and several studies verified its accuracy. While those studies reported on the accuracy of the entire procedure, this experiment wanted to evaluate the degree of deviation that can occur during the drilling procedure alone, due to the tolerance of the drill in the sleeve insert. Material and methods Drilling was executed in a plexi-glass box with a maximal inclination of the drills within the sleeve insert. Different sleeve inserts, sleeve positions, sleeve heights, sleeve insert heights and diameters were evaluated. Results The two tested sleeve inserts gave a maximum deviation in angulation of 5.2 degrees and a maximum horizontal deviation of 1.3mm at the implant shoulder and 2.4mm at the apex for a 13mm implant. These deviations decreased if the distance of the sleeve above the plexi-glass box became smaller and hand hold sleeve inserts gave less deviation than drill hold sleeve inserts. The deviation increased by longer implant length, larger drill key diameter, shorter sleeves and/or drill key heights. Conclusions For a minimal deviation during the surgery with a stereolithographic guide, it is very important to use the drill in a centric position, parallel to the cylinder. The use of longer drill keys and sleeves are critical for optimal accuracy.