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. 2020 Dec;22(6):747-755.
doi: 10.1111/cid.12958. Epub 2020 Oct 28.

Comparative accuracy of cone-beam CT and conventional multislice computed tomography for real-time navigation in zygomatic implant surgery

Baoxin Tao  1 , Yihan Shen  1 , Yuanyuan Sun  1 , Wei Huang  2 , Feng Wang  2 , Yiqun Wu  1
Affiliations

Comparative accuracy of cone-beam CT and conventional multislice computed tomography for real-time navigation in zygomatic implant surgery

Baoxin Tao et al. Clin Implant Dent Relat Res. 2020 Dec.

Abstract

Background: Cone-beam computed tomography (CBCT) and conventional multislice CT (MSCT) are both used in zygomatic implant navigation surgery but the superiority of one technique versus the other remains unclear.

Purpose: This study compared the accuracy of CBCT and MSCT in zygomatic implant navigation surgery by calculating the deviations of implants.

Material and methods: Patients with severely atrophic maxillae were classified into two groups according to the use of CBCT- or MSCT-guided navigation system. The entry and apical distance deviation, and the angle deviation of zygomatic implants were measured on fused operation images. A linear effect model was used for analysis, with statistical significance set at P < .05.

Results: A total of 72 zygomatic implants were inserted as planned in 23 patients. The comparison of deviations in CBCT and MSCT groups showed a mean (± SD) entry deviation of 1.69 ± 0.59 mm vs 2.04 ± 0.78 mm (P = .146), apical deviation of 2 ± 0.68 mm vs 2.55 ± 0.85 (P < .001), and angle deviation of 2.32 ± 1.02° vs 3.23 ± 1.21° (P = .038).

Conclusion: Real-time zygomatic implant navigation surgery with CBCT may result in higher values for accuracy than MSCT.

Keywords: accuracy; computer-assisted surgery; edentulous maxillae; real-time navigation surgery; zygomatic implants.

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References

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