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Published in: Clinical Oral Investigations 6/2015

01-07-2015 | Original Article

Template-guided vs. non-guided drilling in site preparation of dental implants

Authors: Uta Scherer, Marcus Stoetzer, Martin Ruecker, Nils-Claudius Gellrich, Constantin von See

Published in: Clinical Oral Investigations | Issue 6/2015

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Abstract

Objectives

Clinical success of oral implants is related to primary stability and osseointegration. These parameters are associated with delicate surgical techniques. We herein studied whether template-guided drilling has a significant influence on drillholes diameter and accuracy in an in vitro model.

Materials and methods

Fresh cadaveric porcine mandibles were used for drilling experiments of four experimental groups. Each group consisted of three operators, comparing guide templates for drilling with free-handed procedure. Operators without surgical knowledge were grouped together, contrasting highly experienced oral surgeons in other groups. A total of 180 drilling actions were performed, and diameters were recorded at multiple depth levels, with a precision measuring instrument.

Results

Template-guided drilling procedure improved accuracy on a very significant level in comparison with free-handed drilling operation (p ≤ 0.001). Inaccuracy of free-handed drilling became more significant in relation to measurement depth. High homogenic uniformity of template-guided drillholes was significantly stronger than unguided drilling operations by highly experienced oral surgeons (p ≤ 0.001).

Conclusion

Template-guided drilling procedure leads to significantly enhanced accuracy. Significant results compared to free-handed drilling actions were achieved, irrespective of the clinical experience level of the operator.

Clinical relevance

Template-guided drilling procedures lead to a more predictable clinical diameter. It shows that any set of instruments has to be carefully chosen to match the specific implant system. The current in vitro study is implicating an improvement of implant bed preparation but needs to be confirmed in clinical studies.
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Metadata
Title
Template-guided vs. non-guided drilling in site preparation of dental implants
Authors
Uta Scherer
Marcus Stoetzer
Martin Ruecker
Nils-Claudius Gellrich
Constantin von See
Publication date
01-07-2015
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 6/2015
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-014-1346-7

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