Prague Med. Rep. 2018, 119, 137-147

https://doi.org/10.14712/23362936.2019.1

The Effect of Sensory Innervation on the Inorganic Component of Bones and Teeth; Experimental Denervation – Review

Ivo Němec1, Václav Smrčka2,3, Jaroslav Pokorný4

1Department of Otorhinolaryngology and Maxillofacial Surgery, Third Faculty of Medicine, Charles University and Military University Hospital Prague, Prague, Czech Republic
2Department of Plastic Surgery, First Faculty of Medicine, Charles University and Na Bulovce Hospital, Prague, Czech Republic
3Institute for History of Medicine and Foreign Languages, First Faculty of Medicine, Charles University, Prague, Czech Republic
4Institute of Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic

Received May 9, 2018
Accepted January 31, 2019

The effect of the nervous system on bone remodelling has been described by many studies. Sensory and autonomic nerves are present in the bone. Immunohistochemical analysis of the bone have indicated the presence of neuropeptides and neurotransmitters that act on bone cells through receptors. Besides carrying sensory information, sensory neurons produce various neuropeptides playing an important role in maintaining bone and tooth pulp homeostasis, and dentin formation. Bone tissue and teeth contain organic and inorganic components. Bone cells enable bone mineralization and ensure its formation and resorption. Studies focused on the effects of the nervous system on the bone are proceeded using various ways. Sensory denervation itself can be achieved using capsaicin causing chemical lesion to the nerve. Surgical ways of causing only sensory lesion to nerves are substantially limited because many peripheral nerves are mixed and contain a motor component as well. From this point of view, the experimental model with transection of inferior alveolar nerve is appropriate. This nerve provides sensory innervation of the bone and teeth of the mandible. The purpose of our paper is to provide an overview of the effects exerted by the nervous system on the inorganic component of the bone and teeth, and also to present an overview of the used experimental models. As we assume, the transection of inferior alveolar nerve could be reflected in changed contents and distribution of chemical elements in the bone and teeth of rat mandible. This issue has not been studied so far.

References

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