PENGARUH PASTA GIGI DENGAN BERBAGAI KANDUNGAN FLUORIDA TERHADAP LAJU KOROSI KAWAT NIKEL-TITANIUM

GINA, SILVIA DWI and Hudiyati, Maya and Beumaputra, Arya Prasetya (2017) PENGARUH PASTA GIGI DENGAN BERBAGAI KANDUNGAN FLUORIDA TERHADAP LAJU KOROSI KAWAT NIKEL-TITANIUM. Undergraduate thesis, Sriwijaya University.

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Abstract

The application of wire in the mouth that was exposed by physical and Chemical agents can cause corrosion. One of the Chemical agents that can ajfect corrosion in the mouth is toothpaste containing fluoride. Fluoride compounds containing toothpaste are sodium fluoride, sodium monofluorophosphate, and combination of both. The aim of this study was to determine the effect of fluoride containing toothpaste on the corrosion rate of nic/cel-titanium wire. Thirty two sample of round nickel-titanium wire with diameter of 0,016 inch and length of 10 cm were divided into four equal groups: immersed in artificial saliva (group 1 Controls), immersed in 0,32% NaF containing toothpaste solution (group 2), immersed in 1,12% Na2P03F containing toothpaste solution (group 3), immersed in 0,06% NaF+0,76% Na2P03F containing toothpaste solution (group 4). The corrosion rate was calculated using weight loss method. The results showed the corrosion rate of nickel-titanium in control group was 0,1103±0,04455 mpy, in NaF group was 0,32% 0,7499+0,12379 mpy, in Na2POsF 1,12% group was 0,3944+0,11089 mpy, in 0,06% NaF+0,76% Na2PC>3F group was 0,3390+0,06664 mpy. Statistical analysis using Kruskal-Wallis and Mann-Whitney tests showed significant differences of corrosion rate of nickel-titanium (p<0,05) between almost all the group except the group 3 and group 4. In conclusion, this study demonstrate that the corrosion rate of nickel-titanium wire which immersed in NaF containing toothpaste is higher than Na2POsF containing toothpaste and combination of both.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Nickel-titanium wire, corrosion rate, toothpaste, sodium fluoride (NaF), sodium monofluorophosphate (Na2PCO3F)
Subjects:	R Medicine > RK Dentistry > RK1-715 Dentistry
Divisions:	04-Faculty of Medicine > 12201-Dentistry (S1)
Depositing User:	Mrs Furika Furika
Date Deposited:	14 Mar 2023 05:41
Last Modified:	14 Mar 2023 05:41
URI:	http://repository.unsri.ac.id/id/eprint/90786

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