Journal article
Effects of supporting conditions and anchor microscrew on the stabilization of the implant guide template during the drilling process: An in vitro study
The Journal of prosthetic dentistry, Vol.124(6), pp.727.e1-727.e8
12/2020
DOI: 10.1016/j.prosdent.2020.06.033
PMID: 33160620
Abstract
Implant placement errors have been reported in guided surgeries because of movement of the guide template during implant placement. With a completely limiting guide design with high restrictions, guide template stabilization is essential to minimize mobility during the drilling process.
The purpose of this in vitro study was to evaluate the effects of supporting conditions and the use of an anchor microscrew on the seating and functional stabilization of a computer-aided design and computer-aided manufacturing (CAD-CAM) implant surgical guide with a completely limiting design.
Twelve implant surgical guide templates were fabricated under different supporting conditions: tooth-mucosa, tooth-tooth, tooth-screw, and screw-screw (n=3 per group). In the tooth-screw and screw-screw groups, anchor microscrews and anchor caps were used to fix the guide templates. The seating stability of the templates was evaluated by using a micromovement assessment. The functional stability of the templates was analyzed during the drilling process by using a motion tracking method. One-way analysis of variance and the Tukey HSD post hoc test were conducted to compare the differences among the groups (α=.05).
The tooth-tooth, tooth-screw, and screw-screw groups exhibited similar seating stability, which was significantly more stable than that of the tooth-mucosa group (P<.001). In terms of functional stability, the tooth-mucosa group reported the highest positional deviation and motion magnitude, whereas low values were found in the tooth-screw and screw-screw groups (P<.001).
The use of anchor microscrews can increase the seating and functional stability of CAD-CAM guide templates during the drilling process for implant placement.
Details
- Title: Subtitle
- Effects of supporting conditions and anchor microscrew on the stabilization of the implant guide template during the drilling process: An in vitro study
- Creators
- Hang-Nga Mai - Kyungpook National UniversityDu-Hyeong Lee - Kyungpook National University
- Resource Type
- Journal article
- Publication Details
- The Journal of prosthetic dentistry, Vol.124(6), pp.727.e1-727.e8
- DOI
- 10.1016/j.prosdent.2020.06.033
- PMID
- 33160620
- NLM abbreviation
- J Prosthet Dent
- ISSN
- 0022-3913
- eISSN
- 1097-6841
- Language
- English
- Date published
- 12/2020
- Academic Unit
- Prosthodontics
- Record Identifier
- 9984914017702771
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