D11

#11. The root canal morphology of the upper central incisor is optimal from an endodontic point of view. There is practically always only one root canal that is straight or almost straight. The cross-section of the canal is fairly round. From a proximal view, the long axis of the canal meets the incisal area at the incisal edge or slightly palatally. This means that, while access to the pulp chamber is made from the palatal surface for aesthetic reasons, this does not lead to an unsymmetrical preparation, which is a more likely risk when preparing root canals in lower incisors.

---