Implant Surgical Guide Accuracy: CBCT cast scan

Elmadany, Mahmoud . A; Amer, Maha . E; Tolba, Emad M.; Mahmoud Agamy, Mahmoud Mahmoud Agamy

doi:10.21608/mjmr.2022.218140

Implant Surgical Guide Accuracy: CBCT cast scan

Document Type : Original Article

Authors

¹ Department of Oral and maxillofacial Radiology, Faculty of Dentistry, South Valley University, Egypt.

² Department of Head of Oral and maxillofacial Radiology, Faculty of Dentistry, Minia University, Egypt.

³ Department of Prosthodontics, Faculty of Dentistry, Minia University, Egypt

10.21608/mjmr.2022.218140

Abstract

The aim of this study is to evaluate the accuracy of implant placement using implant
surgical guide by CBCT cast scan. Patients and methods: seven resin surgical guide models were
used in this study. Implant position was virtually planned using 3D planning software. Surgical guides
were designed on the software and exported in STL format. Ten implants were placed. The 3D
position of the planned and placed implants, in terms of the linear deviations of the implant head and
apex and the angular deviations of the implant axis, was compared by superimposing the pre- and
postoperative CBCT using software. Data showed parametric distribution so; it was represented by
mean and standard deviation (SD) values. Result: Angular deviation was 2.38 ± 0.37 degree. Coronal
deviation of Implant was 0.49 ± 0.12 mm. Apical deviation of implant Apex was 1.28 ± 0.15 mm,
although the implant position was slightly different than the planning but, there was no statistically
significant difference. Conclusion Implant surgical guide fabricated with CBCT cast scan has
accepted accuracy and it is less costly technique with accepted accuracy.

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