Microleakage comparison of resin modified glass ionomer and OrthoMTA used as a coronal barrier in nonvital teeth bleaching
| Autor: | Marjan Bolbolian, Mostafa Ghandi, Farnaz Ghorbani, Baharan Ranjbar Omidi, Monirsadat Mirzadeh |
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| Jazyk: | perština |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | مجله علمی دانشگاه علوم پزشکی کردستان, Vol 24, Iss 6, Pp 1-11 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1560-652X 2345-4040 |
| Popis: | Background and Aim: Common causes of dental discoloration include trauma, drugs, genetic defects, decay, and age. In order to correct discoloration of pulpless teeth, internal bleaching is recommended. The aim of this study was to compare microleakage of resin modified glass ionomer and OrthoMTA used as an intraorifice barrier in non-vital bleaching. Materials and Methods: In this experimental study, 36 extracted mandibular premolars were selected and randomly divided into two experimental (n = 16) and two control groups (n = 2). 2mm of OrthoMTA and RMGI cements were placed as intraorifice barriers in the experimental groups. Subsequently, we placed a mixture of sodium perborate and 30% hydrogen peroxide as internal bleaching material into the canal and replaced it every three days. Leakage was measured using pH diffusion method by a digital PH meter. Data were statistically analyzed by using T- independent test and repeated measures and variance analysis (P |
| Databáze: | Directory of Open Access Journals |
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