Aim: In this clinical case an indirect pulp capping was performed, using MTA, at 36 cariously damaged. Methodology: A 7 years old girl, affected by DEA presented a decayed 36 whose radicular formation was still incomplete. After cleaning the carious cavity, MTA was placed as intermediate medication and a temporary filling material was used over MTA. The clinical procedure can be considered safe and simple. Results and conclusions: Because of some problems of hers, this young girl returned after 6 months. The formation of hard tissue was observed and the rx control resulted in a clear evidence of root formation. We performed the final restoration of 36, using composite materials. At 6-months and at 7-years follow-up there aren't clinical and radiographic signs of pulpar and radicular pathology. In conclusion, MTA seemed to be a material that can be used for the preservation of the pulp tissue vitality. Furthermore it prevented any leakage of the surface below it, even in cases where a lost integrity of the temporary filling material took place. © 2014 Società Italiana di Endodonzia. Production and hosting by Elsevier B.V. All rights reserved.