Contemporary Clinical Dentistry

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 11  |  Issue : 1  |  Page : 10--14

Effect of chemical disinfection on surface detail reproduction and dimensional stability of a new vinyl polyether silicone elastomeric impression material


Monika Khatri1, Sneha S Mantri1, Suryakant C Deogade2, Abhilasha Bhasin1, Shivkumar Mantri3, Neetu Khatri4, Priyanka Jain1, Deepak Chauhan5 
1 Department of Prosthodontics and Crown & Bridge, Hitkarini Dental College and Hospital, Hitkarini Hills, Dumna Airport Road, Jabalpur, India
2 Department of Prosthodontics and Crown & Bridge, Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur, India
3 Department of Conservative Dentistry, Hitkarini Dental College and Hospital, Hitkarini Hills, Dumna Airport Road, Jabalpur, India
4 Department of Pedodontics, Hitkarini Dental College and Hospital, Hitkarini Hills, Dumna Airport Road, Jabalpur, Madhya Pradesh, India
5 Department of Prosthodontics and Crown & Bridge, Harsaran Dass Dental College and Hospital, Ghaziabad, Uttar Pradesh, India

Correspondence Address:
Dr. Suryakant C Deogade
404-Shivgiri, Himalayan Empire, Fulmati Lay Out, Babulkheda, Nagpur - 440 027, Maharashtra
India

Background: Surface detail reproduction (SDR) and dimensional stability of elastomeric impression material play a crucial role in fixed prosthodontics. Aim and Objectives: The aim of this study was to compare the effect of chemical disinfection on SDR and dimensional stability of polyvinyl siloxane (PVS) and polyether (PE) with a new vinyl polyether silicone (VPES) elastomeric impression material. Materials and Methods: A stainless steel mold was made to fabricate the study specimens for nonaqueous PVS, PE, and VPES elastic dental impression materials. Single mix impression techniques with light- and heavy-body consistency of all three materials were used to prepare the test specimens. The specimens were immersed in glutaraldehyde (Cidex) 2.45% and sodium hypochlorite (Hypo) 3.0% disinfection for 15 min (T1) and 12 h (T2) immersion after which dimensional stability and SDR were recorded using stereomicroscope and digital Vernier caliper. Statistical Analysis: The data were analyzed using the one-way ANOVA, paired t-test, Kruskal–Wallis test, and Wilcoxon signed-rank test. Results: Dimensional stability at the T2 time interval showed a highly significant difference for control and glutaraldehyde groups (P < 0.001), whereas a statistically significant difference for Hypo group (P < 0.05). SDR of the three materials when compared at T1 time interval showed a statistically significant difference (P = 0.015). A comparison between two disinfectants at T1 time interval revealed a highly significant difference (P < 0.001), while at T2 interval significant difference was obtained (P = 0.009). Conclusion: VPES impressions display acceptable dimensional stability and SDR for clinical use with immersion disinfection. Although some statistically significant differences in linear dimensional stability and semidefinite programming were observed among VPES, PE, and PVS, but the clinical impact of these differences is minor considering the overall accuracy of casts which was high.


How to cite this article:
Khatri M, Mantri SS, Deogade SC, Bhasin A, Mantri S, Khatri N, Jain P, Chauhan D. Effect of chemical disinfection on surface detail reproduction and dimensional stability of a new vinyl polyether silicone elastomeric impression material.Contemp Clin Dent 2020;11:10-14


How to cite this URL:
Khatri M, Mantri SS, Deogade SC, Bhasin A, Mantri S, Khatri N, Jain P, Chauhan D. Effect of chemical disinfection on surface detail reproduction and dimensional stability of a new vinyl polyether silicone elastomeric impression material. Contemp Clin Dent [serial online] 2020 [cited 2020 Aug 8 ];11:10-14
Available from: http://www.contempclindent.org/article.asp?issn=0976-237X;year=2020;volume=11;issue=1;spage=10;epage=14;aulast=Khatri;type=0