The comparison of the effects of different whitening toothpastes on the micro hardness of a nano hybrid composite resin

The comparison of the effects of different whitening toothpastes on the micro hardness of a nano hybrid composite resin

The aim of this study was to compare the micro hardness of a nanohybrid composite resin after brushing with two herbal and one non-herbal whitening toothpastes. We divided Eighty disk-shaped specimens of a nanohybrid composite (Tetric N Ceram, Ivoclar Vivadent, Asia) into 4 groups of 20 specimens ea...

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Published in:Journal of conservative dentistry Vol. 17; no. 6; pp. 550 - 554
Main Authors: Nainan, Mohan Thomas, Balan, Ashok Kalappurakkal, Sharma, Roshni, Thomas, Sabeena Susan, Deveerappa, Santhosh B
Format: Journal Article
Language:English
Published: India Medknow Publications and Media Pvt. Ltd 01-11-2014
Medknow Publications & Media Pvt. Ltd
Medknow Publications & Media Pvt Ltd
Subjects:
Bleaching
Comparative analysis
Dental acrylic resins
Dental care
Dental research
Dental resins
Dentifrices
Dentistry
Microhardness
Original
Properties
Resins
Teeth
Abrasives in toothpaste
herbal toothpaste
microhardness
resin composites
Vickers hardness test
tooth whitening
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Summary:The aim of this study was to compare the micro hardness of a nanohybrid composite resin after brushing with two herbal and one non-herbal whitening toothpastes. We divided Eighty disk-shaped specimens of a nanohybrid composite (Tetric N Ceram, Ivoclar Vivadent, Asia) into 4 groups of 20 specimens each: Groups A, B, C, and D. Group A was control, Group B was brushed with Colgate total advanced whitening (Colgate-Palmolive (India) Limited), Group C with Salt and Lemon, Dabur (Dabur International Limited, Dubai, UAE), and Group D with HiOra Shine, Himalaya (The Himalaya Drug Company, India). The specimens were polished using medium, fine, and superfine discs (Sof-lex, 3M, ESPE, USA) and subsequently placed at 37°C in distilled water. They were brushed for 2 minutes twice daily with a soft motorized toothbrush (Colgate 360 sonic power battery-operated tooth brush, Colgate Palmolive, India) for 30 days. The samples were rinsed under running water to remove the toothpaste and stored in distilled water at 37°C until the readout was taken on the Vickers's hardness tester for microhardness. The results revealed that the difference among the groups was statistically significant (P < 0.001). Tukey's test showed that reduction in microhardness for Group B was significantly higher than that for Group C and Group D (P < 0.001). Within the limitations of this study, non-herbal whitening toothpaste had a greater impact on the microhardness of nanohybrid resin composite than herbal whitening toothpastes.
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ISSN:0972-0707
0974-5203
DOI:10.4103/0972-0707.144593