CC BY 4.0 · Eur J Dent 2023; 17(04): 1129-1136
DOI: 10.1055/s-0042-1759697
Original Article

The Effects of Abutment Finish Lines on the Penetration Characteristics of Elastomers into the Simulated Gingival Sulcus

1   Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, Bangkok, Thailand
,
2   Private Practice, PSK Dental Center, Bangkok, Thailand
,
3   National Cyber Security Agency, Bangkok, Thailand
,
1   Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, Bangkok, Thailand
› Author Affiliations
Funding and Sponsorship This study was supported by funding number 287/2564 of Srinakharinwirot University, Bangkok, Thailand.

Abstract

Objective The aim of this study was to determine the effect of finish lines on the penetration ability of polyether and polyvinyl siloxane impression material into the simulated gingival sulcus.

Materials and Methods Three types of finish line (chamfer, deep chamfer, and radial shoulder) were impressed with two types of elastomeric impression material (polyether and polyvinyl siloxane) using a two-step impression technique. Ten samples of each finish line were prepared and then separated into two groups of impression material: polyether and polyvinyl siloxane. The model of the simulated gingival sulcus had a width of 0.1 mm and a depth of 3.5 mm with a subgingival finish line of 0.5 mm. The effect of the finish lines on the penetration ability of these impression materials was analyzed using a two-way analysis of variance (ANOVA) and Tukey's multiple comparison tests at a statistically significant level of 0.05.

Results A two-way ANOVA revealed a significant difference among finish lines, impression materials, and their interaction. The deep chamfer and radial shoulder finish lines displayed significantly higher penetration ability than the chamfer finish line. Moreover, polyether revealed significantly higher penetration ability than polyvinyl siloxane.

Conclusion The finish lines affected the penetration ability of the impression materials. Therefore, the simulated gingival sulcus model demonstrates that it is an effective way of examining impression materials' penetration abilities.

Authors' Contribution

A.J., P.A., P.N. and N.A. contributed to conceptualization and methodology. Validation was done by N.A. A.J. contributed to formal analysis, investigation, data curation, and writing—original draft preparation. A.J. and P.A. contributed in resources collection. Writing—review and editing was done by A.J., P.A., P.N. and N.A. N.A. and P.N. visualized and supervised the study. N.A. helped in project administration. The final approval was done by A.J., P.A., P.N. and N.A. Accountability agreement was done by N.A.


Declaration of Patient Consent

There is no requirement of patient consent in this experimental research study.


Ethics Approval

This study did not require ethical approval because it is an experimental research study not involving living subjects.




Publication History

Article published online:
04 January 2023

© 2023. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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