Author : Erta Xhanari
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (116 download)
Book Synopsis Accuracy of Sleeveless Surgical Templates- One-year Randomized Controlled Trial by : Erta Xhanari
Download or read book Accuracy of Sleeveless Surgical Templates- One-year Randomized Controlled Trial written by Erta Xhanari and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: BackgroundRecently, surgical templates without metallic sleeves have been designed and introduced in the dental market, with the goal to make guided surgery work-flow faster and easier. Nevertheless, there is still lack of data about their accuracy and predictability.Aim/HypothesisTo compare virtual planning accuracy of novel computer-assisted, template-based implant placement techniques, which make use of CAD/CAM stereolithographic surgical templates with or without metallic sleeves. Furthermore, to compare open versus closed sleeves for templates without metallic sleeves.Materials and MethodsAny partially edentulous patients with at least five teeth in two different quadrant, requiring at least one implant to be placed according to a computer-assisted template-based protocol were enrolled. Patients were randomized according to a parallel group design into two arms: surgical template designed and fabricated with (test group) or without (control group) metallic sleeves. Implants were placed according to the manufacturer's instruction. Immediately after implant placement, three deviation parameters (angular, horizontal, vertical) were defined to evaluate the discrepancy between the planned and placed implant positions. Furthermore, implant and prosthesis survival and success rates were evaluated one-year after loading.ResultsForty-one implants were placed using surgical templates with metallic sleeves while 49 implants were placed with a surgical template without metallic sleeves. Of these, 16 implants were placed through open sleeves and 33 through closed sleeves. There was a statistically significant difference in angle (p = 0.0212) and in the vertical plan (p = 0.0073) with lower values for implants placed with a surgical template without metallic sleeves. In the test group, close sleeves were more accurate compared with open sleeves in angle (p = 0.0268) and in horizontal plan (p = 0.0477). One-year after implant placement, no implant and no prosthesis failed. No major complications were experienced. Two minor prosthetic complications were experienced in the control group versus none in the test group. The difference was not statistically significant (0.2047).Conclusions and Clinical ImplicationsWith the limitations of the present study, surgical templates designed without metallic sleeves were more accurate in the vertical plan and angle compared to the conventional template with metallic sleeves. Open sleeves should be used in the molar region only in case of reduced space. Further researches with longer follow-up are needed to confirm these results.