microleakage of class v methacrylate and silorane-based composites and nano-ionomer restorations in fluorosed teeth

Authors

fereshteh shafiei dept. of operative dentistry, school of dentistry, shiraz university of medical sciences, shiraz, iran.

mohadese abouheydari postgraduate student, dept. of operative dentistry, school of dentistry, shiraz university of medical sciences, shiraz, iran.

abstract

statement of the problem: enamel and dentin marginal sealing ability of the new adhesive materials could play an important role in successful restoration on fluorosed teeth. purpose: the aim of this in vitro study was to evaluate the marginal microleakage of low-shrinkage silorane-based composite, nano-ionomer, and methacrylate-based composite through self-etching approach or with enamel acid etching. materials and method: seventy-two extracted human molars with moderate fluorosed (according to thylstrup and fejerskov index, tfi= 4-6) were randomly divided into six groups (n=12). class v cavities were prepared on the buccal surface at the cementoenamel junction and restored with clearfil se bond/clearfil ap-x (methacrylate composite), silorane adhesive system/filtek p90 , and nano primer/nano-ionomer according to the manufacturer’s instructions (self-etching approach) or with additional selective enamel acid etching before primer application for each adhesive. after water storage and thermocycling, microleakages of the samples were assessed using dye-penetration technique at the enamel and dentin margins. data were analyzed using non-parametric tests (α = 0.05).   results: there was a significant difference among the six groups at the enamel margin ( p = 0.001), but not at the dentin margin ( p = 0.7). for all the three adhesive materials, additional enamel etching resulted in significantly reduced microleakage at the enamel margin ( p < 0.05). conclusion: methacrylate- and silorane-based composites and nano-ionomer revealed a similar and good performance in terms of dentin marginal sealing, but not at the enamel margin. the additional selective enamel etching might improve enamel sealing for the three materials.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Microleakage of Class V Methacrylate and Silorane-based Composites and Nano-ionomer Restorations in Fluorosed Teeth

STATEMENT OF THE PROBLEM Enamel and dentin marginal sealing ability of the new adhesive materials could play an important role in successful restoration on fluorosed teeth. PURPOSE The aim of this in vitro study was to evaluate the marginal microleakage of low-shrinkage silorane-based composite, nano-ionomer, and methacrylate-based composite through self-etching approach or with enamel acid e...

full text

evaluation of microleakage in class v cavities filled with methacrylate-based versus silorane-based composites

statement of problem: despite the increasing demand for tooth-colored restorations in dentistry, polymerization shrinkage and marginal microleakage still remains a problem. objectives: the purpose of the present study was to evaluate microleakage in three different resin composites, p90, z250 and z250 xt, in class v cavity of permanent human premolars. materials and methods: standardized class ...

full text

A Review of Silorane and Methacrylate Based Composites and Effective Factors on Microleakage of them

Introduction: An important disadvantage of current dental resin composites is their polymerization shrinkage and production of microleakage. This shrinkage can cause tooth sensitivity, marginal discoloration, and secondary caries. The objective of this study was to review the effective factors on microleakage of methacrylate and silorane composites and compare them with each other. This review...

full text

Microleakage of Class-V Composite Restorations with Different Bonding Systems on Fluorosed Teeth

OBJECTIVES To examine the effects of dental fluorosis and total and self-etch bonding systems on microleakage of Class-V composite restorations in permanent molar teeth. METHODS Teeth were classified as three main groups according to Thylstrup-Fejerskov Index (TFI) as TFI=0, TFI=1-3 and TFI=4. Total and self-etching/bonding procedures were determined for each main group. Total-etching procedu...

full text

the effect of incorporation of polyethylene and glass fiber on the microleakage of silorane-based and methacrylate-based composites in class ii restorations: an in vitro study

statement of problem: microleakage is one of the most important problems in composite restorations. one way to reduce the microleakage is decreasing the total amount of resin by insertion of fibers in composite restorations. objectives: this study aimed to compare the microleakage of silorane and methacrylate-based composites (a nanohybrid) in class ii restorations with gingival margins on the ...

full text

In Vitro Comparison of Microleakage of Two Nanohybrid Flowable Composites and RMGI in Class V Restorations in Primary Molars

Introduction: Composite resins undergo microleakage due to polymerization shrinkage particularly when located in enamel free margins. The purpose of this study was to assess and compare the  microleakage of two nanohybrid  flowable composites and resin modified glass ionomer in class V restorations of primary mandibular second  molars.  Materials and Methods: This in vitro, experimental study ...

full text

My Resources

Save resource for easier access later


Journal title:
journal of dentistry, shiraz university of medical sciences

جلد ۱۶، شماره ۲، صفحات ۱۰۰-۰

Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023