Designing, Fabrication, and Efficacy Testing of a Surgical Guide for Accurate Positioning of Dental Implants in Completely Edentulous Mandibular Models
Journal of Dental School, Shahid Beheshti University of Medical Sciences,
Vol. 39 No. 2 (2021),
13 April 2022
,
Page 37-41
https://doi.org/10.22037/jds.v39i2.33047
Abstract
Objectives: Ideal implant placement decreases the postoperative surgical, prosthetic, and functional complications. This study aimed to design and fabricate a surgical guide for accurate positioning and angulation of dental implants in edentulous mandibular models and assess its efficacy.
Materials and Methods: After initial designing and fabrication of resin model of the surgical guide and eliminating its shortcomings, the final model was fabricated using 6061t6 aluminum alloy by a computer numerical control machine. The efficacy of the designed surgical guide was tested by placing 16 implants with the help of the surgical guide in two completely edentulous mandibular models. Next, cone-beam computed tomography DICOM images were obtained from the inserted dental implants, and analyzed by NNT Viewer software. One-sample t-test was applied to compare deviations of implant angle and distance from the planned angulation/position at P<0.05 level of significance.
Results: The mean angular deviation between the planned and placed implants was 3.31±1.2° and 0.97±0.56° for 0° and 15° implants, respectively. The mean linear deviation between the planned and placed implants was 1.00±0.75 mm. Although the linear and angular differences between the planned and placed implants were statistically significant (P<0.05), they were clinically acceptable.
Conclusion: The designed surgical guide showed the expected efficacy with maximum mesiodistal angular deviation < 5° and linear deviation < 1 mm in 56% and < 1.5 mm in 75% of the placed implants, compared with the planned angulations/positions
- Dental Implants
- Jaw, Edentulous
- Mandible
- Surgery, Computer-Assisted
How to Cite
References
2. Kopp KC, Koslow AH, Abdo OS. Predictable implant placement with a diagnostic/surgical template and advanced radiographic imaging. The Journal of Prosthetic Dentistry. 2003;89:611-5.
3. Miller RJ, Bier J. Surgical Navigation in Oral Implantology. IMPLANT DENTISTRY 2006;15:41-7.
4. stefanelli LV, DeGroot BS, Lipton DI, Mandelaris GA. Accuracy of Dynamic Dental Implant Navigation System in a Private Practice. 2019;34:205-13International Journal of Oral & Maxillofacial Implants.
5. Pyo S-W, Lim Y-J, Koo K-T, Lee J. Methods Used to Assess the 3D Accuracy of Dental Implant Positions in Computer-Guided Implant Placement: A Review. journal of clinical medicine. 2019;8:54.
6. Wazqar H, Durand DO, Hafez T, Hu G-HG, Wang W, Manasse M, et al. A New Surgical Guide for Symmetrical, Parallel, and Leveled A New Surgical Guide for Symmetrical, Parallel, and Leveled Implant Placement in Mandible Overdentures Ashman Department of Periodontology and Implant Dentistry 2015.
7. Fauroux M-A, Boutray MD, ´ry EM, Torres J-H. New innovative method relating guided surgery to dental implant placement. .J Stomatol Oral Maxillofac Surg 2018.
8. Toyoshima T, Tanaka H, Sasaki M, Ichimaru E, Naito Y, Matsushita Y, et al. Accuracy of implant surgery with surgical guide by inexperienced clinicians: an in vitro study Clinical and Experimental Dental Research 2015:10-7.
9. Jorba-García A, Figueiredo R, González-Barnadas A, Camps-Font O, maseda-Castellón EV-. Accuracy and the role of experience in dynamic computer guided dental implant surgery: An in-vitro study. Med Oral Patol Oral Cir Bucal. 2019;24 (1):e76-83.
10. Ersoy AE, Turkyilmaz I, Ozan O, McGlumphy EA. Reliability of Implant Placement With Stereolithographic Surgical Guides Generated From Computed Tomography: Clinical Data From 94 Implants. Journal of periodontology. 2008;79(8):1339-45.
11. Marlière DAA, Demétrio MS, Picinini LS, Oliveira RGD, Netto HDDMC. Accuracy of computer‑guided surgery for dental implant placement in fully edentulous patients: A systematic review. European journal of dentistry. 2018;12(1):153-60.
12. Ozan O, Yilmaz SK-. Biomechanical Comparison of Different Implant Inclinations and Cantilever Lengths in All-on-4 Treatment Concept by Three- Dimensional Finite Element Analysis. . The International Journal of Oral & Maxillofacial Implants vol. 2018;33(1):64-71.
13. Saber FS, Ghasemi S, Koodaryan R, Babaloo A, Abolfazli N. The Comparison of Stress Distribution with Different Implant Numbers and Inclination Angles In All-on-four and Conventional Methods in Maxilla: A Finite Element Analysis. Journal of dental research, dental clinics, dental prospects. 2015;9(4):246-53.
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