Author : Yu-Jui Hsu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (116 download)
Book Synopsis Clinical Accuracy of Modified Computer-aided Oral Implant Surgery in Fully Edentulous Arches by : Yu-Jui Hsu
Download or read book Clinical Accuracy of Modified Computer-aided Oral Implant Surgery in Fully Edentulous Arches written by Yu-Jui Hsu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: BackgroundComputer-aided implant placement offers several advantages over the traditional approach, but deviations from the planned implantplacement may pose significant risks, especially in the edentulous arch.Materials and MethodsTwenty implants were placed in edentulous arches with stereolithographic surgical guides in 8 patients. A well-fitting complete denture or optimized prosthetic tooth arrangement was used and converted to a radiographic template. Prior to scanning, esthetics and functional aspects were checked clinically. The implant positions were virtually determined by the implant planning software relative to the bone structure and prospective tooth position. A stereolithographic surgical stent fabricated with fully prosthetic tooth contour. After implant placement, a second CT scan was obtained after surgery. Preoperative and postoperative CT images were compared (planned vs actual implant positions), and the accuracy of this type of image-guided therapy was assessed.ResultsDamage due to implant placement was not observed in any critical anatomical structure. Compared to the planned implants, theplaced implants showed 1.12 mm and 1.28 mm mean lateral deviations at the coronal and apical ends of the implants. Mean depth deviation was 1.75 mm and mean angular deviation was 5.83 degrees.Conclusions and Clinical ImplicationsBased upon this clinical study, deviations from planned implant positions existed in the coronal and apical portions of the implants as well as with implant angulation.