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HOME > Restor Dent Endod > Volume 36(6); 2011 > Article
Case Report Failure of orthograde MTA filling: MTA wash-out?
Yuran Kim, DDS, Chan-Young Lee, DDS, PhD, Euiseoung Kim, DDS, PhD, Il-Young Jung, DDS, PhD
2011;36(6):-514.
DOI: https://doi.org/10.5395/JKACD.2011.36.6.510
Published online: November 30, 2011

Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea.

Correspondence to Il-Young Jung, DDS, PhD. Professor, Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea. TEL, +82-2-2228-8700; FAX, +82-2-313-7575; juen@yuhs.ac
• Received: August 2, 2011   • Revised: September 23, 2011   • Accepted: September 26, 2011

Copyright © 2011 Korean Academy of Conservative Dentistry

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  • Mineral trioxide aggregate (MTA), which was originally developed for repair of root perforations, is a biocompatible material with numerous clinical applications in endodontics. MTA must be allowed to set in the presence of moisture to optimize the material's physical and chemical properties. In the clinic, occasionally unset MTA has been detected after application of MTA on the tooth, and the reason has been unclear.
    This case report presents MTA washed-out for several years after placement at the root apex as an apical plug, and discusses the reason and things to consider in clinics.
  • Keywords: MTA; Orthograde MTA filling; Setting

Conflict of Interest: No potential conflict of interest relevant to this article was reported.

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Figure 1
Periapical view: pre-operative radiograph.
jkacd-36-510-g001.jpg
Figure 2
Root canal treatment and follow up.
MTA, mineral trioxide aggregate.
jkacd-36-510-g002.jpg
Figure 3
Periapical view: 6 years later.
jkacd-36-510-g003.jpg
Figure 4
Apical surgery on mandibular second premolar.
(a) Fractured root tip was seen, (b) MTA was removed with ultrasonic instrument easily. Vertical root fracture was seen on lingual side.
MTA, mineral trioxide aggregate.
jkacd-36-510-g004.jpg
Figure 5
Experiment 1.
(a) MTA was filled into polyethylene mould, (b) Specimens were placed into butyric acid solution (pH5.5) and saline for 30 days.
MTA, mineral trioxide aggregate.
jkacd-36-510-g005.jpg
Figure 6
Experiment 2.
(a, b) MTA was filled into polyethylene mould, (c, d) Specimen was placed onto fetal bovine serum, (e) Specimen was incubated under 37℃, 100% humidity for 4 days.
MTA, mineral trioxide aggregate.
jkacd-36-510-g006.jpg
Figure 7
MTA contacted with fetal bovine serum was not set.
MTA, mineral trioxide aggregate.
jkacd-36-510-g007.jpg

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    • Modified Mineral Trioxide Aggregate—A Versatile Dental Material: An Insight on Applications and Newer Advancements
      C. Pushpalatha, Vismaya Dhareshwar, S. V. Sowmya, Dominic Augustine, Thilla Sekar Vinothkumar, Apathsakayan Renugalakshmi, Amal Shaiban, Ateet Kakti, Shilpa H. Bhandi, Alok Dubey, Amulya V. Rai, Shankargouda Patil
      Frontiers in Bioengineering and Biotechnology.2022;[Epub]     CrossRef
    • Comparative evaluation of volumetric changes of three different retrograde calcium silicate materials placed under different pH condititions
      So Yeon Kwon, Min-Seock Seo
      BMC Oral Health.2020;[Epub]     CrossRef
    • Effects of RetroMTA on osteoblastic differentiation in MC3T3-E1 cells
      Hyo-Il Lee, Sung-Hyeon Choi, Ji-Hyun Jang, Hoon-Sang Chang, Yun-Chan Hwang, In-Nam Hwang, Bin-Na Lee, Won-Mann Oh
      Korean Journal of Dental Materials.2018; 45(2): 97.     CrossRef
    • The effect of human blood on the setting and surface micro-hardness of calcium silicate cements
      Minju Song, Wonyoung Yue, Soyeon Kim, Wooksung Kim, Yaelim Kim, Jeong-Woong Kim, Euiseong Kim
      Clinical Oral Investigations.2016; 20(8): 1997.     CrossRef
    • Biological Effects and Washout Resistance of a Newly Developed Fast-setting Pozzolan Cement
      Yoorina Choi, Su-Jung Park, Seoung-Hoon Lee, Yun-Chan Hwang, Mi-Kyung Yu, Kyung-San Min
      Journal of Endodontics.2013; 39(4): 467.     CrossRef

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      Failure of orthograde MTA filling: MTA wash-out?
      J Korean Acad Conserv Dent. 2011;36(6):510-514.   Published online November 30, 2011
      DOI: https://doi.org/10.5395/JKACD.2011.36.6.510
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    Failure of orthograde MTA filling: MTA wash-out?
    Image Image Image Image Image Image Image
    Figure 1 Periapical view: pre-operative radiograph.
    Figure 2 Root canal treatment and follow up. MTA, mineral trioxide aggregate.
    Figure 3 Periapical view: 6 years later.
    Figure 4 Apical surgery on mandibular second premolar. (a) Fractured root tip was seen, (b) MTA was removed with ultrasonic instrument easily. Vertical root fracture was seen on lingual side. MTA, mineral trioxide aggregate.
    Figure 5 Experiment 1. (a) MTA was filled into polyethylene mould, (b) Specimens were placed into butyric acid solution (pH5.5) and saline for 30 days. MTA, mineral trioxide aggregate.
    Figure 6 Experiment 2. (a, b) MTA was filled into polyethylene mould, (c, d) Specimen was placed onto fetal bovine serum, (e) Specimen was incubated under 37℃, 100% humidity for 4 days. MTA, mineral trioxide aggregate.
    Figure 7 MTA contacted with fetal bovine serum was not set. MTA, mineral trioxide aggregate.

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    Failure of orthograde MTA filling: MTA wash-out?
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