Accuracy Assessment of Immediate and Delayed Implant Placements Using CAD/CAM Surgical Guides

Area of Science:

• Dental Implantology
• Digital Dentistry
• Surgical Planning

Background:

• The accuracy of immediate dental implant placement using computer-assisted design/computer-assisted manufacturing (CAD/CAM) surgical guides requires thorough assessment.
• Comparing immediate versus delayed implant placement protocols is crucial for optimizing treatment outcomes.

Purpose of the Study:

• To evaluate the accuracy of immediate dental implant placements guided by Anatomage Invivo5 CAD/CAM technology.
• To compare the accuracy of immediate implant placement with the delayed implant placement protocol.

Main Methods:

• Retrospective analysis of 40 implants in 29 patients placed between 2012-2015 using Anatomage Invivo5 CAD/CAM surgical guides.
• Superimposition of pre- and postsurgical images to measure deviations at the implant crest, apex, and angle.

Main Results:

• Overall mean deviations were 0.86 mm (crest), 1.25 mm (apex), and 3.79° (angle).
• Immediate group deviations: 0.85 mm (crest), 1.10 mm (apex), 3.49° (angle).
• Delayed group deviations: 0.88 mm (crest), 1.59 mm (apex), 4.29° (angle).
• The immediate group demonstrated statistically significantly more accurate apical placement than the delayed group.
• No statistically significant differences were observed between groups for crestal and angular deviations.

Conclusions:

• Anatomage Invivo5 CAD/CAM surgical guides are reliable for accurate immediate and delayed dental implant placement.
• Immediate implant placement using CAD/CAM guides offers enhanced apical accuracy compared to delayed placement.
• Crestal and angular accuracy are comparable between immediate and delayed implant placement protocols when using CAD/CAM guides.