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Thesis - Edited (Faris Jamjoom).pdf (30.01 MB)

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Positional Accuracy of Prosthetic Treatment Plan Incorporation Into Cone-beam Computed Tomography Scans Using Surface Scan Superimposition

Jamjoom, Faris Zainalabedeen
http://rave.ohiolink.edu/etdc/view?acc_num=osu1498241824233391

Abstract Details

2017, Master of Science, Ohio State University, Dentistry.
Objectives: This in vitro study evaluated the accuracy of prosthetic treatment plan surface scan incorporation into cone-beam computed tomography (CBCT) scans, compared to conventional radiographic templates, and evaluated the effect of location and length of the edentulous area on the accuracy of each method tested. Methods: Direct surface scans of a completely dentate master model with removable radiopaque teeth were made using an intraoral scanner, and indirect surface scans of a stone duplicate of the master model were made using a laboratory scanner. Specific teeth were removed to simulate different clinical scenarios: Short-span free-end edentulous area, short-span tooth-bound edentulous area, long-span free-end edentulous area, and long-span tooth- bound edentulous area. CBCT scans of each clinical scenario were made. The surface scans were superimposed onto the CBCT scans. Radiographic stents for each clinical scenario were fabricated; the master model was subsequently scanned using the same CBCT scanner with each radiographic template seated. Metrology software was used to assess the accuracy of each method by measuring the three-dimensional deviation on standard tesselation language ( STL) files generated from the CBCT scans, against an STL file of the completely dentate master model generated from a CBCT scan. The effect of location and length of the edentulous area on the accuracy of each method were also evaluated. Three-way ANOVA and Tukey test were used for statistical analysis (a =.05). Results: The incorporation technique had a significant effect on deviation from the master model (p < .0001). The overall mean three-dimensional deviation was 0.0473 mm for direct surface scan superimpositions, 0.0242 mm for indirect surface scan superimpositions, and 0.4110 mm for radiographic templates. No significant effect of edentulous area length on the accuracy of the methods was found. There was a significant effect of location on the accuracy of radiographic templates; the prosthetic treatment plan incorporation was more accurate when the edentulous area was tooth-bound (P= 0.011). Conclusions: Intraoral and laboratory surface scan superimpositions on CBCT scans were more accurate than radiographic templates for prosthetic treatment plan incorporation, regardless of edentulous area length or location. Radiographic templates were more accurate with tooth- bound edentulous areas compared to free-end situations.
Burak Yilmaz, DDS PhD (Advisor)
Edwin McGlumphy, DDS MS (Committee Member)
Damian Lee, DDS MS FACP (Committee Member)
Do-Gyoon Kim, PhD (Committee Member)
75 p.
Dentistry; Medical Imaging
Implant Dentistry; Image Superimposition; Radiographic Template; Treatment Planning; CBCT

Recommended Citations

Citations

  • Jamjoom, F. Z. (2017). Positional Accuracy of Prosthetic Treatment Plan Incorporation Into Cone-beam Computed Tomography Scans Using Surface Scan Superimposition [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1498241824233391

    APA Style (7th edition)

  • Jamjoom, Faris. Positional Accuracy of Prosthetic Treatment Plan Incorporation Into Cone-beam Computed Tomography Scans Using Surface Scan Superimposition. 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1498241824233391.

    MLA Style (8th edition)

  • Jamjoom, Faris. "Positional Accuracy of Prosthetic Treatment Plan Incorporation Into Cone-beam Computed Tomography Scans Using Surface Scan Superimposition." Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1498241824233391

    Chicago Manual of Style (17th edition)

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This open access ETD is published by The Ohio State University and OhioLINK.