Wear Resistance of New Flowable Composites used as Fissure sealant Materials

Journal of Dental Research, Dental Clinics, Dental Prospects

Sohrab Asefi²  Solmaz Eskandarion³  Shadi Hamidi aval¹ 

[1] Assistant professor, Department of Oral and Maxillofacial Radiology, Khorramabad Dental Faculty, Lorestan University of Medical Sciences;Orthodontist, Dentistry School, Shahid Beheshti University of Medical Sciences;Assistant Professor of Dental Material, Dentistry School, Shahid Beheshti University of Medical Sciences

关键词: composite resins;    dental restoration wear;    pit and fissure sealants;   

DOI  :  

学科分类：农业科学（综合）

来源: Tabriz University of Medical Sciences * Faculty of Dentistry

【 摘 要 】

Background and aim(s): Retention rate of pit and fissure sealant materials depends on their intactness and integrity related to the enamel surface adherence. Wear characteristic of sealant materials may determine scheduling of check- up visits. Purpose of this study was comparing wear resistance of two flowable composites with posterior composite materials.Materials and methods: Thirty- five disk shaped specimens were prepared in 5 groups including; two flowable composites (Estelite Flow Quick and Estelite Flow Quick High Flow), Filtek P90 and Filtek P60 and Tetric N-Ceram. They were prepared in 25 diameter disk shaped by packing in a two piece aluminum mold and they were light cured. All the specimens were polished during 1minute by 600 grit sand paper. They stored in distilled water at room temperature for 1 week, then they wore by Two Body abrasion test using "Pin on Disk" method (with distilled water medium under 15 N load, 0.05 m/s speed, 100 m distance and Steatite ceramic balls antagonists). Profilometer used for evaluating the surface wear. Data analyzed with the one-way ANOVA test.Results: Estelite Flow Quick had 2708.9 ±578.1 μm 2 and Estelite Flow Quick High Flow had 3206 ±2445.1 μm 2 wear amounts but there were no statistical differences between all groups. They demonstrated similar wear properties.Conclusion(s): Estelite flowable composites have wear resistance similar to nano and microfilled and microhybrid composites which recommended using as pit and fissure sealant material in posterior region with appropriate mechanical characteristic.

【 授权许可】

Unknown