Color Changes of Teeth after Treatment with Various Mineral Trioxide Aggregate-based Materials: An Ex Vivo Study
Color Changes of Teeth after Treatment with Various Mineral Trioxide Aggregate-based Materials: An Ex Vivo Study
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DOI：
10.1016/j.joen.2015.01.019
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发表时间：
2015-05-01
影响因子：
4.2
通讯作者：
Song, Je Seon
中科院分区：
文献类型：
--
作者：
Kang, Shin-Hong;Shin, Young-Seob;Song, Je Seon
矿物三氧化物骨料（MTA）材料作为牙髓治疗材料已使用多年。使用最广泛的产品是prooroot MTA (Dentsply, Tulsa， OK)，它有一个主要缺点，就是会导致牙齿变色。替代品最近被开发出来，如ENDOCEM Zr（丸内，原州，韩国）和RetroMTA （BioMTA，首尔，韩国），本研究的目的是比较这些不同的mta基材料的变色情况。方法：用4种不同的MTA基材料（prooroot MTA, MTA Angelus [Angelus, Londrina， PR, Brazil]， ENDOCEM Zr和RetroMTA）在1000 mA/cm强度的光下暴露15和30分钟后观察椎间盘的变色情况(2)。在牙模型中，每组使用12颗前磨牙用mta基材料补牙。使用数字分光光度计在16周的时间内测量变色程度。结果：prooroot MTA和MTA Angelus制成的椎间盘颜色变化明显，而ENDOCEM Zr和RetroMTA制成的椎间盘颜色变化不明显。在牙齿模型中，与ENDOCEM Zr和RetroMTA填充的牙齿相比，使用prooroot MTA和MTA Angelus填充的牙齿观察到更明显的、随时间变化的颜色变化。结论：在使用的两种测试模型中，使用ENDOCEM Zr和RetroMTA（含有氧化锆）比使用Pro Root MTA和MTA Angelus（含有氧化铋）观察到更少的变色。
Introduction: Mineral trioxide aggregate (MTA) materials have been used for many years as a pulp therapy material. The most widely used product, ProRoot MTA (Dentsply, Tulsa, OK), has a major drawback in that it causes tooth discoloration. Alternatives have recently been developed such as ENDOCEM Zr (MARUCHI, Wonju, Korea) and RetroMTA (BioMTA, Seoul, Korea), The purpose of this study was to compare the discoloration of these various MTA-based materials. Methods: Discoloration of discs prepared from 4 different MTA-based materials (ProRoot MTA, MTA Angelus [Angelus, Londrina, PR, Brazil], ENDOCEM Zr, and RetroMTA) were observed at 15 and 30 minutes after exposure to light at an intensity of 1000 mA/cm(2). In a tooth model, 12 premolars were used per each group to retrofill the pulp chamber with MTA-based materials. The degree of discoloration was measured over a 16-week period using a digital spectrophotometer. Results: Distinct color changes were observed for discs made from ProRoot MTA and MTA Angelus, but no clear change was observed for those made from either ENDOCEM Zr or RetroMTA. In the tooth model, more distinct, time-dependent color changes were observed for teeth filled with ProRoot MTA and MTA Angelus than for those filled with ENDOCEM Zr and RetroMTA. Conclusions: Less discoloration was observed with ENDOCEM Zr and RetroMTA (which contain zirconium oxide) than with Pro Root MTA and MTA Angelus (which contain bismuth oxide) in both of the test models used.