fa Mineral trioxide aggregate and portland cement for direct pulp capping in dog: a histopathological evaluation اندودانتیکس Endodontics پژوهشي Research <b> Background and aims</b>. Mineral trioxide aggregate and calcium hydroxide are considered the gold standard pulp-capping materials. Recently, Portland cement has been introduced with properties similar to those of mineral trioxide aggregate. Histopathological effects of direct pulp capping using mineral trioxide aggregate and Portland cements on dog dental pulp tissue were evaluated in the present study.<div>  <b>Materials and methods.</b> This histopatological study was carried out on 64 dog premolars. First, the pulp was exposed with a sterile bur. Then, the exposed pulp was capped with white or gray mineral trioxide aggregates and white or gray Port-land cements in each quadrant and sealed with glass-ionomer. The specimens were evaluated under a light microscope after 6 months. Statistical analysis was carried out using Kruskal-Wallis test. Statistical significance was defined at α=5%.</div><div><b> Results.</b> There was no acute inflammation in any of the specimens. Chronic inflammation in white and gray mineral triox-ide aggregates and white and gray Portland cements was reported to be 45.5%, 27.3%, 57.1% and 34.1%, respectively. Al-though the differences were not statistically significant, severe inflammation was observed mostly adjacent to white mineral trioxide aggregate. The largest extent of increased vascularization (45%) and the least increase in fibrous tissue were ob-served adjacent to white mineral trioxide aggregate, with no significant differences. In addition, the least calcified tissue formed adjacent to white mineral trioxide aggregate, although the difference was not significant. </div><div><b>Conclusion</b>. The materials used in this study were equally effective as pulp protection materials following direct pulp cap-ping in dog teeth.</div><hr><p class="MsoNormal" style="text-align: left direction: ltr unicode-bidi: embed"><b>Source: </b>Journal of Dental Research, Dental Clinics, Dental Prospects </p> <p class="MsoNormal" style="text-align: left direction: ltr unicode-bidi: embed"><a href="http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/1195" target="_blank"><font color="#0000ff">Full Text</font></a></p> Direct pulp capping, histological evaluation, mineral trioxide aggregate, Portland cement 0 0 http://idai.ir/browse.php?a_code=A-10-32-3282&slc_lang=fa&sid=1 Maryam Bidar 100319475328460015105 100319475328460015105 No Department of Endodontics, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Neda Naghavi naghavin@mums.ac.ir 100319475328460015106 100319475328460015106 Yes Department of Endodontics, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Nooshin Mohtasham 100319475328460015107 100319475328460015107 No Department of Oral and Maxillofacial Pathology, Oral and Maxillofacial Disease Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Mahshid Sheikh-Nezami 100319475328460015108 100319475328460015108 No Amir Fallah rastegar 100319475328460015109 100319475328460015109 No Farzaneh Afkhami 100319475328460015110 100319475328460015110 No Department of Endodontics, Faculty of Dentistry, Tehran University Medical Sciences, Tehran, Iran Negin Attaran Mashhadi 100319475328460015111 100319475328460015111 No Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Iman Nargesi 100319475328460015112 100319475328460015112 No