Journal of Dental Implants
   About JDI | Editorial | Search | Ahead of print | Current Issue | Archives | Instructions | Subscribe | Login 
Users Online: 370  Wide layoutNarrow layoutFull screen layout Home Print this page  Email this page Small font size Default font size Increase font size
ORIGINAL ARTICLE
Year : 2016  |  Volume : 6  |  Issue : 1  |  Page : 29-36

Accuracy of implant impressions using various impression techniques and impression materials


1 Department of Prosthodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
2 Department of Prosthodontics, D. J. College of Dental Sciences and Research, Ghaziabad, Uttar Pradesh, India

Correspondence Address:
Y Ravi Shankar
Department of Prosthodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-6781.190384

Rights and Permissions

Purpose: This in vitro study was to investigate the accuracy of two kinds of impression techniques (open and closed tray) with three impression materials (polyvinylsiloxane [PVS]/polyether [PE]/vinylsiloxanether [VSE]) on angulated implants. Materials and Methods: The reference model was a stainless steel die with six analogs placed at 0°, 10°, and 20° toward the center axis. Custom acrylic trays were made on a stone model replica of the reference die. A total of sixty samples of twenty each were made under each type of impression material. Each group was divided into open and closed tray groups. Two types of splinting were carried out in the open tray: Group 1 - with floss and pattern resin and Group 2 - with a plastic rod (coffee stirrer) and resin. Impressions were poured with Type IV stone to obtain experimental casts and were evaluated for positional accuracy by coordinate measuring machine in three dimensions (X, Y, and Z). Differences in measurements were analyzed using analysis of variance and Tukey's test. Results: The lowest mean deviation was found in casts made from open tray splinted with floss and resin. There was also a significant difference in the measurements of PVS, PE, and VSE. Conclusion: VSE impression material yielded more accurate casts than those of PVS and PE. Splinting with floss and pattern resin was found to be more accurate than stirrer and resin.


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

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

 Article Access Statistics
    Viewed10746    
    Printed133    
    Emailed0    
    PDF Downloaded1449    
    Comments [Add]    
    Cited by others 3    

Recommend this journal