The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 18 , ISSUE 6 ( June, 2017 ) > List of Articles

RESEARCH ARTICLE

Comparison of Platform Switched and Sloping Shoulder Implants on Stress Reduction in various Bone Densities: Finite Element Analysis

S Suresh, Joji Markose, Shruthi Eshwar, K Rekha, Vipin Jain

Citation Information : Suresh S, Markose J, Eshwar S, Rekha K, Jain V. Comparison of Platform Switched and Sloping Shoulder Implants on Stress Reduction in various Bone Densities: Finite Element Analysis. J Contemp Dent Pract 2017; 18 (6):510-515.

DOI: 10.5005/jp-journals-10024-2075

Published Online: 01-06-2017

Copyright Statement:  Copyright © 2017; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Introduction

Comparison of platform switched (PS), sloping shoulder, and regular implants on stress reduction in various bone densities with finite element analysis.

Materials and methods

A total of 12 three-dimensional finite element models were built to analyze the stress distribution model. Nobel Biocare 4.3 × 8 mm regular platform replace select implant with matching diameter easy abutment, Nobel Biocare 4.3 × 8 mm replace select implant PS with 3.5 mm diameter easy abutment, Bicon 4 × 8 mm implant with 4 mm diameter sloping shoulder abutments were created virtually in compact bone density using software. The 130 N axial force and a 90 N oblique loading force were applied to the abutment to analyze the stress.

Results

Under horizontal and vertical loading, the sloping shoulder implant had lesser stresses in cancellous bone when compared with PS and regular implants. Sloping shoulder implant showed more stress distribution at implant–abutment interface and at crestal area, whereas with regular implants, the stresses were distributed at cortical area.

Conclusion

Sloping shoulder implant in subcrestal position is much favorable for bone growth, stress distribution, and preservation of remaining bone.

Clinical significance

Use of sloping shoulder implant design distributes the stress apically and creates lesser stresses when compared with PS implants.

How to cite this article

Markose J, Suresh S, Eshwar S, Rekha K, Jain V, Manvi S. Comparison of Platform Switched and Sloping Shoulder Implants on Stress Reduction in various Bone Densities: Finite Element Analysis. J Contemp Dent Pract 2017;18(6):510-515.


PDF Share
  1. Three-dimensional finite element analysis of SKY implant system. J Serbian Soc Comput Mech 2010;4:87-96.
  2. The influence of occlusal loading location on stresses transferred to implant-supported prostheses and supporting bone: a three-dimensional finite element study. J Prosthet Dent 2004 Feb;91(2):144-150.
  3. Biomechanical effects of platform switching in two different implant systems: a three dimensional finite element analysis. J Dent (Tehran) 2013 May;10(4):338-350.
  4. Short implants compared to implants in vertically augmented bone: a systematic review. Clin Oral Implants Res 2015 Sep;26(Suppl 11):170-179.
  5. Theory of matrix structural analysis. J Sound Vib 1969;10:358-360.
  6. Three dimensional finite element analysis to detect stress distribution in spiral implants and surrounding bone. Dent Res J (Isfahan) 2009 Fall;6(2):59-64.
  7. Effect of implant size and shape on implant success rates: a literature review. J Prosthet Dent 2005 Oct;94(4):377-381.
  8. ; Gultekin, P.; Yalcin, S. (2012) Application of finite element analysis in implant dentistry, In: Ebrahimi, F., editor, Finite element analysis – new trends and developments. InTech; 2012. Available from: http://www.intechopen.com/books/finite-element-analysis-new-trends-and-developments/application-of-finite-element-analysis-in-implant-dentistry.
  9. Curved, isoparametric, quadrilateral elements for finite element analysis. Int J Solids Struct 1968 Jan;4(1):31-42.
  10. Tissue alterations at implant-supported single-tooth replacements: a 1-year prospective clinical study. Clin Oral Implants Res 2006 Apr;17(2):165-171.
  11. Platform switching: a new concept in implant dentistry for controlling postrestorative crestal bone levels. Int J Periodontics Restorative Dent 2006 Feb;26(1):9-17.
  12. In vivo bone response to biomechanical loading at the bone/dental-implant interface. Adv Dent Res 1999 Jun;13:99-119.
  13. Platform switching: biomechanical evaluation using three-dimensional finite element analysis. Int J Oral Maxillofac Implants 2011 May-Jun;26(3):482-491.
  14. Bone strain and interfacial sliding analyses of platform switching and implant diameter on an immediately loaded implant: experimental and three-dimensional finite element analyses. J Periodontol 2009 Jul;80(7):1125-1132.
  15. Effect of platform switching on implant crest bone stress: a finite element analysis. Implant Dent. 2009;18:260-269.
  16. Biomechanical evaluation of platform switching in different implant protocols: computed tomography-based three-dimensional finite element analysis. Int J Oral Maxillofac Implants. 2010; 25:911-919.
  17. Biomechanical aspects of bone-level diameter shifting at implant-abutment interface. Implant Dent 2009 Jun;18(3):239-248.
  18. Distribution of micromotion in implants and alveolar bone with different thread profiles in immediate loading: a finite element study. Int J Oral Maxillofac Implants 2012 Nov-Dec;27(6):e96-e101.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.