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Updated: Aug 10, 2025
Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
Effect of the computer-aided static navigation technique on the accuracy of bicortical mini-implants placement site
Paulina Rodríguez Torres1, Elena Riad Deglow1, Álvaro Zubizarreta-Macho2,3
1Department of Implant Surgery, Faculty of Health Sciences, Alfonso X El Sabio University, Avda. Universidad, 1, Villanueva de La Cañada, 28691, Madrid, Spain.
Abstract:
The objective of the present study was to evaluate and compare the effect of the computer-aided static navigation technique on the accuracy of the maxillary skeletal expansion (MSE) appliances.
Material And Methods:
Forty orthodontic self-drilling mini-implants were placed in ten anatomically based standardized polyurethane models of a completely edentulous upper maxilla, manufactured using a 3D impression procedure. The four orthodontic self-drilling mini-implants for anchoring the MSE appliance were digitally planned on 3D planning software, based on preoperative cone-beam computed tomography (CBCT) scan and a 3D extraoral surface scan. Afterwards, the surgical templates were virtually planned and manufactured using stereolithography. Subsequently, the orthodontic self-drilling mini-implants were placed an postoperative CBCT scans were performed. Finally, coronal entry-point, apical end-point and angular deviations were calculated using a t-test for independent samples or a non-parametric Signed Rank test.
Results:
Statistically significant differences were not shown at coronal entry-point (p = 0.13), apical end-point (p = 0.41) and angular deviations (p = 0.27) between the planned and performed orthodontic self-drilling mini-implants.
Conclusions:
Computer-aided static navigation technique enables accurate orthodontic mini-implant placement for the MSE appliances.
