Stomatológ 2022, 32(2):10-12 | DOI: 10.69658/sto.2022.009

Comparison of Relining and Rebasing Materials in Removable Dentures

Martin Franz Siklinger¹, Peter Stanko², Halyna Pruts², Anna Korpášová^2,*, Nikos Leptos², Michaela Lifková²

¹ Zahnartzpraxis Jandelsbrunn, Nemecko

² KLINIKA STOMATOLÓGIE A MAXILOFACIÁLNEJ CHIRURGIE LFUK A OUSA, BRATISLAVA

INTRODUCTION: The aim of this study was to provide the latest and comprehensive knowledge about soft relining materials in general. It should highlight the indications and properties of these materials from a clinical as well as a technical standpoint.

METHODS: Within a comparative study, three permanent soft relining materials of three different manufacturers were employed. These materials were added to conventional resin base plates and observed over a period of 70 days, while being stored in water bath. The changes in shore hardness A, and in the overall weight were tracked over a period of 70 days, measuring every 14 days. Finally, a discoloration test has been performed in which two solutions were employed, documenting the discoloration via photographs every 14 days over a period of 70 days.

RESULTS: The biggest increase of Shore hardness A was observed within the first 14 days for both dual-component autopolymerisation materials. On the other hand the single component heat-polymerised material presented insignificant changes; hence it is more chemically stable compared to the first two materials. In regards of weight changes, although the two dual-component autopolymerisation materials rendered an increase of weight as they are more porous, thus rendering more water absorption. Regarding the discoloration, all three materials may be recorded as discoloured for solutions , where there was no visual difference between the two used solutions.

Keywords: soft relining materials, shore hardness A, water absorption, discolouration

Published: December 15, 2022  Show citation