Determining acceptable limits for water sorption and solubility of interim denture resilient liners

Author(s)

Maciel, Janaina Gomes ^[1] ; Campos Sugio, Carolina Yoshi ^[1] ; Chaves, Giuliana de Campos ^[1] ; Falcao Procopio, Andrea Lemos ^[1] ; Urban, Vanessa Migliorini ^[2] ; Neppelenbroek, Karin Hermana ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Prosthodont & Periodont, Bauru Sch Dent, Bauru - Brazil

^[2] State Univ Ponta Grossa UEPG, Dept Dent, Ponta Grossa - Brazil

• Document type: Journal article
• Source: JOURNAL OF PROSTHETIC DENTISTRY; v. 121, n. 2, p. 311-316, FEB 2019.
• Web of Science Citations: 0

Abstract

Statement of problem. Specifications for determining acceptable limits of water sorption (WS) and solubility for interim denture resilient liners are lacking. Purpose. The purpose of this in vitro study was to evaluate the WS and solubility of interim resilient materials throughout their lifespans. Material and methods. Specimens (n=10) of 7 tissue conditioners, Coe-Comfort (CC), Softone (ST), Rite-Line (RL), Dura Conditioner (DC), Hydrocast (HC), Dentusoft (DS), and Visco-gel (VG) and 2 interim resilient liners, Trusoft (TS) and Coe-Soft (CS), were submitted to desorption until weight stabilization. Next, they were immersed in distilled water at 37 degrees C for 3, 5, 7, or 14 days and then weighed, dried, and reweighed. Data (%) were analyzed using 2-way ANOVA and the Tukey honestly significant difference (HSD) test (alpha=.05). Results. VG demonstrated the highest WS (12.06 +/- 0.93%-16.62 +/- 0.87%) and solubility (20.30 +/- 4.26%-23.59 +/- 2.24%; P<.05) percentages. Low WS values were presented by CC (2.23 +/- 0.53%-2.99 +/- 0.49%; P<.05). The WS showed no significant changes for CC, CS, and TS over 14 days (P>.05). SL presented intermediate solubility values (4.09 +/- 1.60%-8.80 +/- 1.15%), and the other materials showed values lower than 3.35 +/- 0.70%. CC, DC, DS, HC, RL, TS, and CS showed no changes in solubility throughout the 14-day trial. Conclusions. Over the lifespan of a tissue conditioner (7 days), CC, RL, DC, HC, DS, CS, and TS presented suitable in vitro performance. Among the tested materials, CC, CS, and TS were considered best suited for denture relining for up to 14 days. (AU)

• FAPESP's process: 12/11074-2 - Modification of temporary resilient liners for dentures with antimicrobial agents: in vitro and in vivo studies
• Grantee: Karin Hermana Neppelenbroek
• Support Opportunities: Regular Research Grants
• FAPESP's process: 15/03536-4 - Water sorption and solubility of temporary soft materials for denture base relining
• Grantee: Giuliana de Campos Chaves Lamarque
• Support Opportunities: Scholarships in Brazil - Scientific Initiation