Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Thesis.pdf (26.82 MB)

ETD Abstract Container

Abstract Header

Comparison of Vertical Misfit Between Pattern Resin and Welded Titanium Used to Fabricate Complete-Arch Implant Verification Jigs

Johnston, Geoffrey R
http://rave.ohiolink.edu/etdc/view?acc_num=osu1499779684903305

Abstract Details

2017, Master of Science, Ohio State University, Dentistry.
Purpose: The aim of this study was to compare marginal fit and 3-dimensional distortion of verification jigs fabricated on a four-implant model using either pattern resin (GC pattern resin) or a novel welded titanium framework (Dentweld). Materials and Methods: A single master edentulous model simulating four implants in an edentulous mandible at sites 21, 23, 26, and 28 (Zimmer Biomet) was used to fabricate each sample. Verification jigs were fabricated out of reluted, sectioned pattern resin (GC Pattern Resin), or from titanium with use of the Titanium Welder (Dentweld). Five samples (n=5) from each material and method were fabricated. After a single screw was torqued to 15Ncm at implant site #28, all samples were scanned with an industrial computed tomography (CT) scanner (Nikon / X-Tek XT H 225kV MCT Micro-Focus). Polygonal mesh models (STL) were reconstructed from the direct CT dataset and transferred to a volume and graphics analysis software (Polyworks, Innovmetric). From this software, all measurements were extracted prior to statistical analysis. 3D gap measurements were generated for all coping/abutment mating surfaces, and color maps were created to show gap size between mating surfaces using +/- 0.250mm color scale ranges. 3D gap measurements were also reported as mean gap measurement at each abutment/coping interface as well as a maximum gap at each interface. The Life Reg (SAS) procedure was used to fit the gap distance values to a model of a normal distribution for the experimental design and a scale parameter. The interval-censored data was reported in tables as no-measurable gap (NMG). Results: When mean or maximum vertical gap data was analyzed, statistical significance was shown between mean vertical gaps for the method used to create verification jig (p-value: < 0.0001). Statistical significance was not shown when other trends in the data were examined. Conclusions: Within the limitation of this in vitro study, the following conclusions can be drawn: 1. Verification jigs made with the pattern resin method showed statistically significant smaller gap sizes when compared to the intraoral welded titanium method of fabrication (p value < 0.0001). 2. Trends were not shown to be statistically significant when investigating gap data and its relation to interface position. 3. Trends were not shown to be statistically significant when investigating gap data and its relation to both interface position and method used to fabricate verification jig. 4. The technique used in the study to fabricate pattern resin verification jigs proved to be extremely accurate (within 11.5µm).
Edwin McGlumphy, DDS, MS (Advisor)
William Johnston, PhD (Committee Member)
Burak Yilmaz, DDS, PhD (Committee Member)
67 p.
Dentistry; Health Care
Dentistry; Dental Implants; Verification Jig; Verification Index

Recommended Citations

Citations

  • Johnston, G. R. (2017). Comparison of Vertical Misfit Between Pattern Resin and Welded Titanium Used to Fabricate Complete-Arch Implant Verification Jigs [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1499779684903305

    APA Style (7th edition)

  • Johnston, Geoffrey. Comparison of Vertical Misfit Between Pattern Resin and Welded Titanium Used to Fabricate Complete-Arch Implant Verification Jigs. 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1499779684903305.

    MLA Style (8th edition)

  • Johnston, Geoffrey. "Comparison of Vertical Misfit Between Pattern Resin and Welded Titanium Used to Fabricate Complete-Arch Implant Verification Jigs." Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1499779684903305

    Chicago Manual of Style (17th edition)

osu1499779684903305
242
© 2017, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.