TY - JOUR
T1 - Color Changes of Teeth after Treatment with Various Mineral Trioxide Aggregate-based Materials
T2 - An Ex Vivo Study
AU - Kang, Shin Hong
AU - Shin, Young Seob
AU - Lee, Hyo Seol
AU - Kim, Seong Oh
AU - Shin, Yooseok
AU - Jung, Il Young
AU - Song, Je Seon
N1 - Publisher Copyright:
© 2015 American Association of Endodontists.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - 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/cm2. 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 ProRoot MTA and MTA Angelus (which contain bismuth oxide) in both of the test models used.
AB - 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/cm2. 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 ProRoot MTA and MTA Angelus (which contain bismuth oxide) in both of the test models used.
KW - Bismuth oxide
KW - ENDOCEM Zr
KW - RetroMTA
KW - discoloration
KW - mineral trioxide aggregate
KW - zirconium oxide
UR - http://www.scopus.com/inward/record.url?scp=84929026077&partnerID=8YFLogxK
U2 - 10.1016/j.joen.2015.01.019
DO - 10.1016/j.joen.2015.01.019
M3 - Article
C2 - 25732402
AN - SCOPUS:84929026077
SN - 0099-2399
VL - 41
SP - 737
EP - 741
JO - Journal of Endodontics
JF - Journal of Endodontics
IS - 5
ER -