Trace elementary concentration in enamel after dental bleaching using HI-ERDA

被引：2
作者：
Added, N.
Rizzutto, M. A.
Curado, J. F.
Francci, C.
Markarian, R.
Mori, M.
机构：
[1] Univ Sao Paulo, IFUSP, Dept Fis Nucl, GFAA, BR-05508970 Sao Paulo, Brazil
[2] Univ Sao Paulo, Sch Dent, BR-05508 Sao Paulo, Brazil
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2006年 / 249卷 / 1-2 SPEC. ISS.期
基金：
巴西圣保罗研究基金会;
关键词：
ERDA; ionization chamber; trace elements;
D O I：
10.1016/j.nimb.2006.03.117
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Changes of elementary concentrations in dental enamel after a bleaching treatment with different products, is presented, with special focus on the oxygen contribution. Concentrations for Ca, P, O and C and some other trace elements were obtained for enamel of bovine incisor teeth by HI-ERDA measurements using a Cl-35 incident beam and an ionization chamber. Five groups of teeth with five samples each were treated with a different bleaching agents. Each tooth had its crown sectioned in two halves, one for bleaching test and one the other used as a control. Average values of C/Ca, O/Ca, F/Ca enrichment factors were found. The comparison between bleached and non-bleached halves indicates that bleaching treatment did not affect the mineral structure when low-concentration whitening systems were used. The almost constant oxygen concentration in enamel, suggests little changes due to whitening therapy. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：684 / 687
页数：4
相关论文
共 9 条
[1]   Light element analysis using ERDA method with an ionization chamber [J].
Added, N ;
Chubaci, JFD ;
Matsuoka, M ;
Castro, RA ;
Radtke, M ;
Alonso, E ;
Neto, RL ;
Rizzuto, MA ;
Tabacniks, M ;
Mansano, RD .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2001, 175 :787-790
[2]   PIXE ANALYSIS OF CARIES RELATED TRACE-ELEMENTS IN TOOTH ENAMEL [J].
ANNEGARN, HJ ;
JODAIKIN, A ;
CLEATONJONES, PE ;
SELLSCHOP, JPF ;
MADIBA, CCP ;
BIBBY, D .
NUCLEAR INSTRUMENTS & METHODS, 1981, 181 (1-3) :323-326
[3]  
CHAUDHRI MA, 1981, NUCL INSTRUM METHODS, V181, P333, DOI 10.1016/0029-554X(81)90632-7
[4]  
COUTO MC, 2003, PROBLEMAS ADESAO MIC
[5]   RELATIONSHIPS OF TRACE-ELEMENTS IN HUMAN TOOTH ENAMEL TO DENTAL-CARIES [J].
CURZON, MEJ ;
CROCKER, DC .
ARCHIVES OF ORAL BIOLOGY, 1978, 23 (08) :647-653
[6]  
MEYERS M, SIMNRA4 0 USERS MANU
[7]   THE EFFECT OF CARBAMIDE PEROXIDE BLEACH ON THE TENSILE BOND STRENGTH OF CERAMIC BRACKETS - AN IN-VITRO STUDY [J].
MILES, PG ;
PONTIER, JP ;
BAHIRAEI, D ;
CLOSE, J .
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, 1994, 106 (04) :371-375
[8]   THE EFFECT OF CARBAMIDE-PEROXIDE GEL ON THE SHEAR BOND STRENGTH OF A MICROFIL RESIN TO BOVINE ENAMEL [J].
TITLEY, KC ;
TORNECK, CD ;
RUSE, ND .
JOURNAL OF DENTAL RESEARCH, 1992, 71 (01) :20-24
[9]   ADHESION OF COMPOSITE RESIN TO BLEACHED AND UNBLEACHED BOVINE ENAMEL [J].
TITLEY, KC ;
TORNECK, CD ;
SMITH, DC ;
ADIBFAR, A .
JOURNAL OF DENTAL RESEARCH, 1988, 67 (12) :1523-1528
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