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Published on: October 18, 2021
Comparative Accuracy of Static Verses Dynamic Guidance for Dental Implant Placement on Vascularized Bone Flap
Purpose:
To evaluate and compare the accuracy of dental implant placement on vascularized bone flaps (VBFs) reconstructed for dental arch defects using static computer-assisted implant surgery (s-CAIS) and dynamic computerassisted implant surgery (d-CAIS).
Materials And Methods:
This retrospective study included patients who underwent s-CAIS or d-CAIS implant placement following VBF reconstruction between October 2021 and October 2023. A total of 23 patients were included: 9 patients (33 implants) in the d-CAIS group and 14 patients (41 implants) in the s-CAIS group. Accuracy was assessed by comparing the preoperative design and postoperative results from CBCT. Key parameters-such as angulation deviation, global deviation at the platform and apex, and bidirectional deviations (mesiodistal, buccolingual, and apicocoronal)-were measured and compared between groups.
Results:
The d-CAIS group demonstrated significantly lower global deviation (P < .01) and apicocoronal deviation at the apex (P < .05) compared to the s-CAIS group. Superior accuracy was also observed in the d-CAIS group for posterior implants, particularly in apicocoronal deviation at both the platform and apex levels (P < .01). Additionally, d-CAIS outperformed s-CAIS for mandibular implants, showing significantly lower buccolingual deviation at both the platform and apex levels (P < .05). For implants on iliac flaps, d-CAIS exhibited lower angulation deviation and global deviation at the platform and apex levels (P < .05).
Conclusions:
When placing implants on VBF-reconstructed dental arches, dynamic guidance demonstrated superior precision, particularly in controlling depth and apex deviation.
