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The Impact of Metal Artifacts Within Cone Beam Computed Tomography Data on the Accuracy of Computer-Based Implant Surgery: An In Vitro Study

Authors
 Jong-Eun Kim  ;  Young-Bum Park  ;  June-Sung Shim  ;  Hong-Seok Moon 
Citation
 INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS, Vol.34(3) : 585-594, 2019-06 
Journal Title
 INTERNATIONAL JOURNAL OF ORAL & MAXILLOFACIAL IMPLANTS 
ISSN
 0882-2786 
Issue Date
2019-06
MeSH
Artifacts ; Cone-Beam Computed Tomography* ; Dental Implantation, Endosseous ; Dental Implants* ; Surgery, Computer-Assisted
Abstract
Purpose: To evaluate differences in implant placement accuracy depending upon the presence or absence of metal restorations, as well as between distal extension and tooth-end cases. Materials and methods: Five experimental groups were designed with mandibular models exhibiting the following dental statuses: six anterior teeth and bilateral second molars, with bilaterally edentulous sites between them (group NN); six anterior teeth (group NDE); identical to group NN, with the six anterior teeth restored with metal crowns (group MN); identical to group NDE, with the six anterior teeth restored with metal crowns (group MDE); identical to group NN, with all remaining teeth restored with metal crowns (group MM). Six implants were placed on the bilateral first and second premolars and first molars; the linear and angular deviations between the preoperatively planned and actually placed implant positions were computed. Results: Implant position errors were 0.55 to 0.87 mm and 0.53 to 0.80 mm at the entry point and apex, respectively, and were 0.35 to 0.71 mm and 2.02 to 3.12 degrees in depth and angular deviations, respectively. Significant differences were observed between groups NN and MM in overall deviations at the entry point (P = .009) and apex (P = .026), as well as in depth deviation (P = .008). Conclusion: The presence of metal restorations on all anterior and posterior remaining teeth resulted in significant differences in linear deviation at the entry point and apex between preoperatively planned and actually placed implant positions, compared with natural teeth without restorations. No significant differences were observed in placement accuracy between distal extension and tooth-end cases.
Full Text
http://www.quintpub.com/journals/omi/abstract.php?iss2_id=1607&article_id=19150#.XthdNeRYeUk
DOI
10.11607/jomi.7108
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jong Eun(김종은) ORCID logo https://orcid.org/0000-0002-7834-2524
Moon, Hong Seok(문홍석) ORCID logo https://orcid.org/0000-0001-8118-8145
Park, Young Bum(박영범)
Shim, June Sung(심준성) ORCID logo https://orcid.org/0000-0003-1428-0122
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/175835
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