Comparison of ion release from new and recycled orthodontic brackets

doi:10.1067/mod.2001.113794

中山醫學大學機構典藏 CSMUIR > 口腔醫學院 > 牙醫學系暨碩士班 > 期刊論文 > Item 310902500/18291

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題名:	Comparison of ion release from new and recycled orthodontic brackets
作者:	Huang, T.-H.;Yen, C.-C.;Kao, C.-T.
日期:	2001
上傳時間:	2017-08-09T04:45:05Z (UTC)
ISSN:	8895406
摘要:	Bracket corrosion can occur in the oral environment. The purpose of this study was to compare the release of metal ions from new and recycled brackets in artificial saliva and buffers with different pH values over a 12-week immersion period. The brackets were divided into 2 groups: new and recycled. The recycled bracket bases were coated with adhesive and the brackets were heat treated. Nickel, chromium, iron, and manganese ions were detected by atomic absorption. The surface characteristics of the brackets were examined by energy dispersive radiographic analysis. The results were as follows: (1) Recycled brackets released more ions than did the new brackets. (2) Greater amounts of nickel, iron, and manganese ions were released in artificial saliva than in the other buffers tested. (3) Ion release from brackets in a pH 4 buffer was greater than that observed in pH 7 or pH 10 buffers. (4) The total amount of ion release increased with time. (5) After a 12-week immersion, the total ion release averaged over the period did not exceed the recommended daily intake.
URI:	http://dx.doi.org/10.1067/mod.2001.113794 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035404376&doi=10.1067%2fmod.2001.113794&partnerID=40&md5=70d246c4215f4df8071355cab6ed8796 https://ir.csmu.edu.tw:8080/ir/handle/310902500/18291
關聯:	American Journal of Orthodontics and Dentofacial Orthopedics 120(1) ,68-75
顯示於類別:	[牙醫學系暨碩士班] 期刊論文

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