Anti-inflammatory and Mineralization Effects of ProRoot MTA and Endocem MTA in Studies of Human and Rat Dental Pulps In Vitro and In Vivo

• Published in: Journal of endodontics Vol. 44; no. 10; pp. 1534 - 1541
• Main Authors: Kim, Do-Hee, Jang, Ji-Hyun, Lee, Bin-Na, Chang, Hoon-Sang, Hwang, In-Nam, Oh, Won-Mann, Kim, Sun-Hun, Min, Kyung-San, Koh, Jeong-Tae, Hwang, Yun-Chan
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.10.2018
• Subjects: Animals; Anti-Inflammatory Agents; Calcification, Physiologic - drug effects; Calcium Hydroxide - pharmacology; Cells, Cultured; Dental Pulp - cytology; Dental Pulp - metabolism; Dental Pulp Capping; Dentistry; Endocem MTA; Humans; inflammation; Inflammation Mediators - metabolism; Interleukin-1beta - metabolism; Interleukin-6 - metabolism; Lipopolysaccharides - adverse effects; mineralization; Minerals - pharmacology; ProRoot MTA; pulp capping; Pulp Capping and Pulpectomy Agents - pharmacology; Rats; Rats, Sprague-Dawley; Root Canal Filling Materials - pharmacology; pulp capping; ProRoot MTA; mineralization; Endocem MTA; inflammation
• ISSN: 0099-2399; 1878-3554
• DOI: 10.1016/j.joen.2018.07.012

Few studies have reported direct pulp capping in inflamed pulp conditions. The purpose of this study was to investigate the in vitro and in vivo responses of dental pulp during direct pulp capping using various pulp capping materials in inflamed conditions. Human dental pulp cells were treated with lipopolysaccharide (LPS) and cultured with Dycal (Dentsply Caulk, Milford, DE), ProRoot MTA (Dentsply Maillefer, Ballaigues, Switzerland), and Endocem MTA (Maruchi, Wonju, South Korea). The expressions of interleukin (IL)-1β, IL-6, dentin matrix protein 1, and dentin sialophosphoprotein were analyzed through real-time polymerase chain reaction. The maxillary molars of Sprague-Dawley rats were exposed for 2 days. The exposed pulps were capped with Dycal, ProRoot MTA, and Endocem MTA and sealed with resin-modified glass ionomer followed by histologic and immunohistochemical analyses. The expression of IL-1β and IL-6 was increased with LPS and decreased by Dycal, ProRoot MTA, and Endocem MTA. Dentin matrix protein 1 and dentin sialophosphoprotein levels were decreased with LPS and increased after treatment with pulp capping materials.In the in vivo study, inflammation associated with Dycal was higher than that associated with ProRoot MTA and Endocem MTA at week 1, without any significant difference between the 2. At 4 weeks, inflammation was decreased, and mineralization was increased compared with week 1 in all 3 of the materials. At week 1, IL-6 immunoreactivity was strongly expressed. Dycal exhibited stronger immunoreactivity than ProRoot MTA and Endocem MTA. However, the immunoreactivity was decreased in all groups at week 4. Successful direct pulp capping requires more effective pulp capping materials for the treatment of inflamed pulps. •Dycal, ProRoot MTA, and Endocem MTA decreased inflammation in inflamed pulp.•Dycal, ProRoot MTA, and Endocem MTA increased mineralization in inflamed pulp.•There was no significant difference among Dycal, ProRoot MTA, and Endocem MTA applications to inflamed pulp.