“…An indirect or direct pulp cap using a bioactive endodontic cement such as Biodentine, (Biodentine TM Septodont, Saint-Maur-des-fosses, France) or MTA (ProRoot MTA, Dentsply Sirona Endodontics, Tulsa, OK, USA; MTA-Angelus, Angelus, Londrina-PR, Brazil) may be indicated if the pulp is close to being or is perforated, for example, Patel class 1Ap, 2Ap, 2Bp (Nair et al 2008, Nowicka et al 2013). These materials have excellent sealing ability , Koubi et al 2012, Raskin et al 2012, Ramezanali et al 2017, antibacterial properties ) and biocompatibility (Sultana et al 2018, Tomas-Catala et al 2018. They also promote reparative dentine formation, cementum formation and osteoblast differentiation (Koh et al 1997, Zanini et al 2012).…”