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The Effects of Mouth Rinses on the Color Stability of Resin‐Based Restorative Materials
Author(s) -
ElEmbaby Abeer ElSayed
Publication year - 2014
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12061
Subject(s) - resin composite , dentistry , post hoc , materials science , composite number , nuclear chemistry , statistical analysis , mathematics , composite material , chemistry , medicine , statistics
Objective The aim of this study was to assess the color stability of three direct resin‐based restorative materials: IPS E mpress D irect ( I voclar V ivadent, S chaan, L iechtenstein), N ano‐filled composite ( F iltek Z 350 XT , 3 M ESPE , S t. P aul, MN , USA ), and N ano‐hybrid composite ( T etric E vo C eram, I voclar V ivadent, S chaan, L iechtenstein) upon immersion into the following three mouth rinses: A ntiseptol (Kahira Pharmaceuticals and Chemical Industries Co. Cairo‐Egypt), F lucal (Alexandria Co. Pharmaceuticals Alexandria, Egypt), and L isterine (Johnson & Johnson, UK). Materials and Methods Ninety disc‐shaped, 12 mm × 1 mm specimens were divided into three groups according to the type of direct resin‐based restorative material used. The specimens were randomly subdivided into three different subgroups ( N = 10) in terms of immersion medium. Color change was evaluated prior to and after immersion into the mouth rinses for 24 hours by spectrophotometry ( S himadzu, UV ‐3101 PC S himadzu C orporation. Kyoto, Japan). Results Data were statistically analyzed using two‐way analysis of variance ( ANOVA ) to assess the color stability of the restorative materials. The post hoc S cheffe's test was applied to clarify pair‐wise statistical significance. Results with p ‐values < 0.05 were considered statistically significant. IPS E mpress D irect (ΔE = 1.48) exhibited more favorable stability than the other tested composite resins, F iltek Z 350 X (ΔE = 3.05) and T etric E vo C eram (ΔE = 10.35). The immersion media elicited a significant effect on the color stability of the tested, resin‐based restorative materials, where F lucal elicited the most significant color change, followed by L isterine and A ntiseptol, which elicited the least significant color change. Conclusions Within the limitation of this laboratory study, the following conclusions could be drawn: (1) The composite structure, namely the resin formulation, which includes the filler size and type of photo‐initiator, has a direct impact on its susceptibility to stain by external agents; (2) Mouth rinses can be considered stainable solutions; (3) The chemical formulation of individual mouth rinses can significantly control their ability to stain. Clinical Significance Patient use of mouth rinses should be subject to dental supervision to control their adverse effects on the aesthetic quality of the restoration. Knowing the composition of the restorative material is important, as is its polymerization cycle and the promotion of adequate surface texture in order to select the appropriate material for each clinical application, and to use it in an effective way to promote its best properties.