Fig. 7
Three-dimensional reconstructions of the observed pulp configurations at the level of the permanent mandibular premolars. Pulp horns and root canals are labeled as in Fig. 5. Reference planes (A to C) indicate the position of selected 2D-images. A common pulp chamber (CPC) was observed in almost all teeth as demonstrated using a 3D-reconstruction of the pulp system of a Triadan 408 originating from a 5-years-old alpaca. Two minimal pulp horns can be identified. In a 15,5-years-old alpaca (S, dental age 11 years and 4 months), narrowing of the common pulp chamber was visible in an occlusal-apical direction. Communication between the mesial root canal and the central pulp pulpal coalescence was lost. Extensive production of secondary dentin in this tooth has led to a disappearance of root canal II