Comparative evaluation on stress distribution pattern of conventional and liquid-supported dentures: An in-vitro study

  • Nitin H C Post graduate student, Department of Prosthodontics and Implantology, AECS Maaruti College of Dental Sciences and Research Centre,Bangalore, INDIA
  • Jayakar M Shetty Professor, Department of Prosthodontics and Implantology, AECS Maaruti College of Dental Sciences and Research Centre,Bangalore, INDIA
  • Chandrasekharan K Nair Professor and Head of the Department, Department of Prosthodontics and Implantology, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, INDIA
  • Sadhvi K V Senior Lecturer, Department of Prosthodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, INDIA

Abstract

Objective: To compare the stress exerted by liquid supported denture and conventional denture on a simulated model.
Methodology: A completely edentulous maxillary cast was made in self-cure acrylic resin and five strain gauges (250Ω, 2.01 G F) were attached to its surface. Soft tissue component of light body silicone was incorporated on the acrylic model. The model made was duplicated and two casts were obtained. On one a conventional denture and on the other a liquid supported denture was fabricated. The dentures were placed on the model and were subjected to compressive loading and the strain was measured.
Results: The anterior strain gauges recorded a mean of 70 and 72 microstrains for the conventional denture and 52.66 and 50.33 microstrains for the liquid supported denture. The posterior strain gauges recorded a mean of 182.66 and 175.66 microstrains for the conventional denture and 141.66 and 142 microstrains for the liquid supported denture. The mid palatal strain gauge recorded a mean of 199.33μ strains for the conventional denture and 111μ strains for the liquid supported denture.
Conclusion: A liquid supported denture does distribute occlusal stress better than a conventional denture.

Published
2013-01-30
How to Cite
H C, Nitin et al. Comparative evaluation on stress distribution pattern of conventional and liquid-supported dentures: An in-vitro study. Trends in Prosthodontics and Dental Implantology, [S.l.], v. 4, n. 2, p. 27-29, jan. 2013. ISSN 0975-9298. Available at: <https://trendsinprosthodontics.com/index.php/trends/article/view/59>. Date accessed: 29 sep. 2020.
Section
Articles

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