Accuracy in osteotomy drilling using a new universal and disposable drill-stop device for dental implant drills: an in vitro study using a bovine rib model

Abstract

Abstract Objective To evaluate the surgical accuracy of a new universal disposable stop system for implant drills (FCA Universal Drill Stop).Materials and Methods A total of 60 bovine ribs were included in this in vitro study. The ribs were randomized into three study groups (n = 20 ribs per group). In each study group (Group1: drills without stop or control group, Group 2: prefabricated drills with stop or gold standard group, and Group 3: drills with FCA Universal Drill Stop) a total of 100 osteotomies were performed with implant drills in each group, following the drilling sequence for the placement of a dental implant of 10 mm length and 4 mm diameter. The accuracy of the depth of the osteotomies was quantified clinically (with periodontal probe) and radiologically, using ImageJ version 1.48v software.Results The order of highest to lowest accuracy (clinical and radiological) in the depth of osteotomies was: FCA Universal Drill Stop > prefabricated drills with a stop > drills without stop, with statistically significant differences being observed between both systems with stop with respect to the control group, although not between them.Conclusions The new universal disposable stop system for implant drills, offers similar accuracy to prefabricated drills with stop, with both systems being much more accurate than implant drills without stop. Clinical relevance: Our results indicate that the new FCA Universal Drill Stop system is an accurate device for implant osteotomies, offering the advantage of being a universal system for all brands of dental implants, but further clinical studies are necessary.