scholarly journals Coronal Tooth Discoloration After the Use of White Mineral Trioxide Aggregate

2020 ◽  
Vol Volume 12 ◽  
pp. 409-414
Author(s):  
Rupam Tripathi ◽  
Stephen Cohen ◽  
Nitin Khanduri
Keyword(s):  
Mineral Trioxide Aggregate ◽  
Tooth Discoloration ◽  
White Mineral

scholarly journals Characterization of calcium oxide in root perforation sealer materials

2012 ◽  
Vol 23 (5) ◽  
pp. 539-546 ◽  
Author(s):  
Carlos Estrela ◽  
Manoel Damião Sousa-Neto ◽  
Orlando Aguirre Guedes ◽  
Ana Helena Gonçalves Alencar ◽  
Marco Antonio Hungaro Duarte ◽  
...  
Keyword(s):  
Calcium Oxide ◽  
Mineral Trioxide Aggregate ◽  
Chemical Compounds ◽  
Internal Diameter ◽  
X Ray ◽  
Final Sample ◽  
Materials Used ◽  
Main Components ◽  
White Mineral

Root perforation represents an undesirable complication that may lead to an unfavorable prognosis. The aims of this study were to characterize and to compare the presence of calcium oxide (CaO) on the chemical composition of materials used for root perforation therapy: gray and white mineral trioxide aggregate (MTA) and Portland cement (PC), gray MTA+5%CaO and gray MTA+10%CaO. The last two materials were analyzed to evaluate the increase of CaO in the final sample. CaO alone was used as a standard. Eighteen polyethylene tubes with an internal diameter of 3 mm and 3 mm in length were prepared, filled and then transferred to a chamber with 95% relative humidity and a temperature of 37ºC. The chemical compounds (particularly CaO) and the main components were analyzed by energy-dispersive X-ray microanalysis (EDX). EDX revealed the following concentrations of CaO: gray MTA: 59.28%, white MTA: 63.09%; PC: 72.51%; gray MTA+5%CaO: 63.48% and gray MTA+10%CaO: 67.55%. The tested materials presented different concentrations of CaO. Even with an increase of 5 and 10% CaO in gray MTA, the CaO levels found in the MTA samples were lower than those found in PC.

Quantifying Coronal Permanent Tooth Discoloration Caused by Different Pulpotomy Materials

2021 ◽  
Vol 45 (5) ◽  
pp. 306-311
Author(s):  
Hanaa Azem ◽  
Sigalit Blumer ◽  
Benjamin Peretz ◽  
Sohad Haj-Yahya ◽  
Shlomo Elbahary
Keyword(s):  
Color Space ◽  
Mineral Trioxide Aggregate ◽  
Permanent Tooth ◽  
Control Group ◽  
Major Drawback ◽  
Tooth Structure ◽  
Color Changes ◽  
Base Materials ◽  
Tooth Discoloration ◽  
Over Time

Introduction: Bioceramic materials, gray and white mineral trioxide aggregate (GMTA, WMTA), have been shown to have high rates of success in various endodontic applications. A major drawback is their tendency to discolor teeth compared to Biodentine (BD), that has been claimed not to discolor teeth. The aim of this study was to compare tooth discoloration after applying different pulpotomy base materials (BD, GMTA and WMTA). Study design: Forty human incisors teeth were used in this study. Coronal access was achieved by a Tungsten Carbide drill, and the pulp chambers were accessed and chemo-mechanically debrided. Each material was placed in the pulp chamber, up to the cervical sectioning level. All specimens were incubated at 37°C and 100% humidity for three months and have been evaluated before the study and weekly. Color was assessed according to the CIE L*a*b* color space system. Results: ΔE of all experimental groups (GMTA, WMTA and BD) were significantly different from the control group at all time points (P<0.05). Color changes in the GMTA and WMTA groups, had no statistically significant differences, but showed higher discoloration compared to BD group in the cervical part of the crown, since week 1 (P<0.05). WMTA group showed significant discoloration in the cervical part as of week 1 (P<0.05), and gradually increased over time (Figure 2). BD group showed no significantly discoloration over time. GMTA group showed the significant discoloration at week 1 and week 14 (P<0.05). Conclusions: both GMTA and WMTA pulpotomy materials may discolor tooth structure over time in an extracted permanent anterior tooth model. When choosing bioceramic pulpotomy material, BD may be preferable in esthetic area.

Effect of storage temperature on sealing ability and solubility of White Mineral Trioxide Aggregate

2011 ◽  
Vol 70 (6) ◽  
pp. 536-540 ◽  
Author(s):  
Mohammad Ali Saghiri ◽  
Kamal Asgar ◽  
Mehrdad Lotfi ◽  
Amir Nazari ◽  
Kasra Karamifar ◽  
...  
Keyword(s):  
Storage Temperature ◽  
Mineral Trioxide Aggregate ◽  
Sealing Ability ◽  
White Mineral

Setting Expansion of Gray and White Mineral Trioxide Aggregate and Portland Cement

2008 ◽  
Vol 34 (1) ◽  
pp. 80-82 ◽  
Author(s):  
Buffy Storm ◽  
Frederick C. Eichmiller ◽  
Patricia A. Tordik ◽  
Gary G. Goodell
Keyword(s):  
Portland Cement ◽  
Mineral Trioxide Aggregate ◽  
White Mineral
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