Fig. 3
From: Endodontic access cavity preparation: challenges and recent advancements

a) The 26 requiring rewalling to aid isolation and containment of irrigant. A Greater Curve matrix band was used in this case and the pulp chamber was blocked out by polytetrafluoroethylene. b) The 26 was rewalled with Fill-Up! dual cure bulk fill composite (Coltene, Switzerland). Image courtesy of Dr Shakil Umerji