• Users Online: 163
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2022  |  Volume : 17  |  Issue : 3  |  Page : 699-704

An in vitro digital comparative evaluation of the accuracy and dimensional stability of vinyl polyether silicone impression material with the conventionally used elastomeric materials scanned using a blue light scanner


1 Department of Prosthodontics and Crown and Bridge, School of Dental Sciences, Krishna Institute of Medical Sciences Deemed To Be University, Karad, Maharashtra, India
2 Department of Prosthodontics and Crown and Bridge, ESIC Dental College, Gulbarga University, Gulbarga, Karnataka, India

Correspondence Address:
Dr. Bhavna Mahesh Ahuja
Department of Prosthodontics and Crown and Bridge, School of Dental Sciences, Krishna Institute of Medical Sciences Deemed to be University, Karad, Satara, Maharashtra
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jdmimsu.jdmimsu_291_20

Rights and Permissions

Background: The development of material science has allowed integrating qualities of polyether (PE) and Vinyl Polysiloxane (VPS) into a newer material Vinyl polyether silicone (VPES). There is limited literature available on this combination material. The aim was to evaluate and compare the accuracy and dimensional change of elastomeric impression materials with a three-dimensional (3D) approach. Materials and Methodology: Impressions were made of standard tooth model and custom trays using the three monophase impression materials, i.e., Group A–Vinyl polysiloxane (VPS), Group B-Polyether (PE), and Group C-Vinyl Polyether silicone (VPES). All the impressions were digitized and compared on eight predetermined points using a 3D compare software by the superimposition of computer-aided design files of impressions onto that of Standard tooth model. Three-dimensional comparison is repeated after storage of impressions for 1 week to re-evaluate the dimensional stability of the impression materials. Results: The average measurement of mean discrepancies of all the 8 points obtained on day 1 for VPS, PE, and VPES were 75.758 μm, 139.52 μm, and 49.24 μm, respectively, which helps in the determination of accuracy and after interval of 1 week 91.27 μm, 157.25 μm, and 89.76 μm, respectively, which helps to deduce that the linear dimensional change values for Group A, Group B, and Group C were 15.52 μm, 17.73 μm, and 40.52 μm, respectively. Conclusions: Average dimensional accuracy was highest of VPES followed by VPS and PE. Whereas VPS impression material shows the highest dimensional stability after prolonged storage of 1 week, followed by PE and then VPES impression material.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed250    
    Printed14    
    Emailed0    
    PDF Downloaded28    
    Comments [Add]    

Recommend this journal