en اندودانتیکس Endodontics پژوهشي Research <p>  <strong>INTRODUCTION:<i> </i></strong>Intrinsic tooth discolorations after endodontic treatment are principally attributed to the composition of necrotic pulp tissue, hemorrhage within the pulp cavity, endodontic medicaments and/or filling materials. Residual sealer left in pulp chamber after obturation can cause discoloration. The objective of this <i>in vitro</i> study was to evaluate coronal discoloration created by AH26 and ZOE sealers after four months.</p><p>  <strong>MATERIALS & METHODS:<i> </i></strong>Fifty intact human extracted maxillary central incisors were employed. Access cavities were prepared in all samples and root canals were instrumented coronal orifices were then sealed using self-cure glass ionomer. The teeth were divided into two experimental groups (n=20) according to utilized sealer in pulp chambers including AH26 and Dorifill (ZOE). The remaining 10 teeth served as negative and positive controls (n=5). The access cavities were sealed with self-cure glass ionomer. Teeth were kept in incubator for four month. Preliminary digital images of the teeth were taken and then compared with those related to 4-month follow-up. The images were assessed using Photoshop software. Data was analyzed using paired t-test and independent samples t-test.</p><p>  <strong>RESULTS:<i> </i></strong>The teeth which were filled with AH26 sealer showed significantly greater discoloration than those filled with ZOE sealer (Dorifill) (P < 0.05).<i /></p><p>  <strong>CONCLUSION:<i> </i></strong>AH26 sealer causes greater discoloration of the crown compared to ZOE sealer. Despite the other disadvantage of AH26 sealer, it seems that Dorifill is more esthetically considerate.</p><hr><p></p><p> <strong> Source: </strong>Iranian Endodontic Journal </p><p><a href="http://journals.sbmu.ac.ir/iej/article/view/2411"><font color="#0000cc">  Full text</font></a> </p> AH26 sealer, Tooth discoloration, Zinc oxide eugenol 0 0 http://idai.ir/browse.php?a_code=A-10-32-464&slc_lang=en&sid=1 Maryam Zare Jahromi hiva1378maryam@yahoo.com 10031947532846001892 10031947532846001892 Yes Islamic Azad University of Medical Sciences, Khorasgan Branch, Isfahan, Iran Amir Arsalan Navabi 10031947532846001893 10031947532846001893 No Khorasgan Branch, Isfahan, Iran Mahsa Ekhtiari 10031947532846001894 10031947532846001894 No