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J Dent Res Dent Clin Dent Prospects. 2021;15(1): 1-6.
doi: 10.34172/joddd.2021.001
  Abstract View: 116
  PDF Download: 120

Basic Research

Original Article

Measurements of surface scale changes in different denture base materials by stereophotogrammetric technique

Gonca Deste Gökay 1* ORCID logo, Pelin Özkan 2, Rukiye Durkan 3, Perihan Oyar 4

1 Department of Prosthodontics, Faculty of Dentistry, Bursa Uludağ University, Bursa, Turkey
2 Department of Prosthodontics, Faculty of Dentistry, Ankara University, Ankara, Turkey
3 Department of Prosthodontics, Faculty of Dentistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
4 Department of Dental Prostheses Technology, Health Services Vocational High School, Hacettepe University, Ankara, Turkey
*Corresponding Author: Gonca Deste Gökay, Email: goncadeste@hotmail.com

Abstract

Background. This study aimed to evaluate the surface scale changes in the denture base material using different polymerization techniques, such as heat-cure/pressure polymerization system and injection molding technique with the stereophotogrammetric technique. The function of a complete denture is related to the adaptation of its base to the supporting areas. Proper adaptation of the base depends on the stability and retention of dentures. The surface scale changes of dentures during processing and in service are of great importance since they affect the denture base material’s fit.

Methods. This study focused on the use of a computer-assisted stereophotogrammetric method for measuring changes in the volume of three different denture base resins of an edentulous maxillary ridge. A stone master model simulating the shape of an edentulous maxillary arch was used to prepare three groups of denture base resins. The stereophotographs were evaluated to determine the surface scale differences of maxillary jaws.

Results. The results showed no significant differences between the denture borders for three denture base materials (P > 0.05).

Conclusion. In the evaluation made using this technique, no significant difference was found in the different polymerization techniques in terms of surface scale changes for three denture base materials. Stereophotogrammetry, especially the digital stereophotogrammetric technique, has several useful research applications in prosthodontics.

Keywords: Denture bases, Prostheses, Stereophotogrammetry
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Submitted: 02 Nov 2020
Accepted: 09 Dec 2020
ePublished: 13 Feb 2021
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