Dentine is the main component of the equine tooth and following eruption, secondary dentine is continually secreted for the life of the tooth by odontoblasts that reside on the periphery of the pulp. Because of the intimate relationship of dentine andpulp the 2 tissues are sometimes termed the dentino-pulp complex and this emphasises that dentine is a vital living tissue. As much more dentine (up to 100 times more) is laid down subocclusally than on the periphery of the pulps horns, this indicates that there is a specific stimulus for secondary dentine deposition originating from the occlusal aspects of the teeth, that acts on the subocclusal pulp.
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