OralHistology

Questions	Answer
Calcitonin -gene-related peptide and substance P in pulp cause	Vasodilation and increased capillary permeability
The approximate number of axons entering the apical foramen is	2500 axons
The percentage of axons in tooth that are myelinated is	25 percentage
The type of nerve fibres in teeth	90% are narrow A delta  and 10% are wider A beta group []
The Plexus of Raschkow is not evident till	The tooth is erupted
The unsheathed axons of dentin are most often restricted to	Coronal dentin
What is predentinal plexus of Bradlaw	Is an area where a number of axons congregate and houses unsheathed axons. Also houses the dentinal dentritic antigen presenting cell
Subodontoblastic zone contains a lot of	Cell processes. It is anuclear and devoid of other structures as per EM studies
In pulp, the level of glycosaminoglycan peaks till	Eruption of teeth
The main ground substance in developing pulp  is the	Chondroitin sulfate. In mature pulp it is hyaluronan