Radiopacity of experimental composite resins containing radiopaque materials

被引:26
作者
Aoyagi, Y
Takahashi, H
Iwasaki, N
Honda, E
Kurabayashi, T
机构
[1] Tokyo Med & Dent Univ, Grad Sch, Dept Restorat Sci, Div Oral Hlth Sci,Bunkyo Ku, Tokyo 1138549, Japan
[2] Univ Tokushima, Grad Sch Dent, Dept Oral & Maxillofacial Radiol, Tokushima, Tokushima 7708504, Japan
[3] Tokyo Med & Dent Univ, Grad Sch, Dept Oral Restitut, Div Oral Hlth Sci,Bunkyo Ku, Tokyo 1138549, Japan
关键词
aluminum equivalent thickness; half-value layer; composite resin;
D O I
10.4012/dmj.24.315
中图分类号
R78 [口腔科学];
学科分类号
1003 [口腔医学];
摘要
This study aimed to investigate the relationship between the radiopacity of an experimental light-cured composite resin and the amount and type of its radiopaque material: Ti, SrCO3, ZrO2, BaSO4, or Bi2O3. Radiopacity of each material was evaluated in terms of aluminum equivalent thickness using an aluminum step wedge. Then, the half-value layer thickness of the experimental composite resin, which had an aluminium equivalent thickness of I mm, was evaluated. It was found that the effects of elemental composition were not identical when evaluated in terms of aluminum equivalent thickness and by half-value layer. Nevertheless, both measurement methods indicated that radiopacity increased with increase in radiopaque material content as well as increase in atomic number of the element.
引用
收藏
页码:315 / 320
页数:6
相关论文
共 21 条
[1]
RADIOPACITY OF POSTERIOR COMPOSITE RESINS, COMPOSITE RESIN LUTING CEMENTS, AND GLASS-IONOMER LINING CEMENTS [J].
AKERBOOM, HBM ;
KREULEN, CM ;
VANAMERONGEN, WE ;
MOL, A .
JOURNAL OF PROSTHETIC DENTISTRY, 1993, 70 (04) :351-355
[2]
[Anonymous], 2000, 40492000 ISO
[3]
Effects of heat and pH in silanation process on flexural properties and hydrolytic durabilities of composite resin after hot water storage [J].
Arksornnukit, M ;
Takahashi, H ;
Nishiyama, N ;
Pavasant, P .
DENTAL MATERIALS JOURNAL, 2004, 23 (02) :175-179
[4]
Effects of silane coupling agent amount on mechanical properties and hydrolytic durability of composite resin after hot water storage [J].
Arksornnukit, M ;
Takahashi, H ;
Nishiyama, N .
DENTAL MATERIALS JOURNAL, 2004, 23 (01) :31-36
[5]
Attar Nuray, 2003, J Can Dent Assoc, V69, P516
[6]
Bouschlicher MR, 1999, OPER DENT, V24, P20
[7]
DENDY PP, 1999, PHYS DIAGNOSTIC RADI, P152
[8]
Physical properties of different composites [J].
Ersoy, M ;
Civelek, A ;
L'Hotelier, E ;
Say, EC ;
Soyman, M .
DENTAL MATERIALS JOURNAL, 2004, 23 (03) :278-283
[9]
GOAZ PW, 1987, ORAL RADIOLOGY, P33
[10]
Comparison of two methods for radiometric evaluation of resin-based restorative materials [J].
Gurdal, P ;
Akdeniz, BG .
DENTOMAXILLOFACIAL RADIOLOGY, 1998, 27 (04) :236-239