A Comparative Evaluation of Marginal Leakage of Different Restorative Materials in Deciduous Molars: Anin vitroStudy

Abstract

Context: Microleakage around dental restorative materials is a major problem in clinical dentistry. Inspite of many new restorative materials available in the market very few actually bond to the tooth surface.Aims: The aims of this study were: (1) To evaluate and compare the marginal leakage of newer restorative materials viz colored compomer, ormocer, giomer and RMGIC in class I restoration of deciduous molars. (2) To compare the microleakage scores between the groups of: Colored compomer and ormocer, giomer and RMGIC, ormocer with giomer and RMGIC, giomer with RMGIC.Materials and methods: A total of 40 primary molars were randomly divided into four groups of 10 each. Class I cavities were prepared and the cavities were restored with colored compomer (Group A), Ormocer (Group B), Giomer (Group C) and RMGIC (Group D). The teeth were thermocycled and subjected to 0.5% basic fuchsin dye penetration followed by sectioning. The cut sections were evaluated under a stereomicroscope and the data was subjected to statistical analysis.Statistical analysis used: Mann-Whitney U test and Student t-test.Results: No significant difference was observed when colored compomer was compared to ormocer, giomer and RMGIC. Ormocer showed significantly lower microleakage when compared to giomer. However, no significant difference was observed when ormocer was compared to RMGIC. No significant difference between giomer and RMGIC was found.Conclusion: Ormocer has proven to be an excellent restorative material as it showed least microleakage followed by colored compomer, giomer and RMGIC in increasing order.How to cite this article: Yadav G, Rehani U, Rana V. A Comparative Evaluation of Marginal Leakage of Different Restorative Materials in Deciduous Molars: An in vitro Study . Int J Clin Pediatr Dent 2012;5(2):101-107.

Marginal Leakage Evaluation of Giomer and Compomer in Primary Teeth (In-Vitro Study)

“…Enamel/dentin bonding characteristics in a pathological situation may be different from the bonding substrates encountered in the in vitro study. Accordingly, Pashley (1990) (38) claimed that the results of an in vitro microleakage study should be viewed as a theoretical maximum level of leakage more than that may be expected in vivo.…”

Clinical Assessment and Microleakage Evaluation of Three Esthetic Restorative Materials in Class II in Primary Molars

“…In each group the cavity was restored with its respective restorative material according to the manufacturer's instructions. [7] (3018) Gihan M. Abuelniel E.D.J. Vol.…”

“…4= dye penetration reaching the full length of the axial wall. [7] RESULTS Data were recorded and analyzed. Fisher's Exact test was used to compare between the three materials.…”

“…As giomer is a new material and only few studies have investigated its performance, further research was advocated. [7] Recently, glass carbomer cement, a GIC based restorative material, has been introduced with claims of improved physical characteristics. This new material contains nano-sized powder particles and fluorapatite as secondary filler in a trial to improve its compressive strength and wear resistance.…”

In Vitro Assessment of Water Sorption, Solubility and Surface Roughness of Compomer and Giomer Materials After Immersion in Different Beverages

“…It is composed of inorganic glass particles of glass-ionomer in dehydrated (water-free) polyacid-modified bulky macro-monomers with an appropriate initiator. Setting occurs through the photopolymerization of the acidic monomer; however, compomers absorb water intraorally to begin the acid-base reaction of the glass-ionomer component (1,(6)(7)(8)(9)(10) .…”