PMID: 7543363Jun 1, 1995Paper

Enhanced formation of secondary dentin in the absence of nerve supply to feline teeth

European Journal of Oral Sciences
L OlgartL Edwall

Abstract

This investigation was designed to study the formation of secondary dentin in permanent teeth of young cats after denervation. In eight animals, cervical dentin was exposed bilaterally in the mandibular canines, 7-10 d after unilateral resection of the inferior alveolar nerve. The observation intervals were 30 d, 90 d and 180 d, after which histological examination of dentin was performed. In order to verify the loss and regeneration of pulpal innervation and an intact blood supply, blood flow responses to electrical stimulation of the tooth and to i.v. injections of substance P (SP) were recorded by laser Doppler flowmetry before and at 7-10 d after denervation, at the end of the experiments, and at predetermined intermediate intervals. SP-induced vasodilation was significantly enhanced at 1 wk and 30 d postoperatively and was normalized to control values at 90 and 180 d. Vasodilation in response to electrical tooth stimulation, which was absent after denervation, reappeared after 90 d in two of four cats. There was no irregular dentin formation under the exposed dentin at any time in denervated or control teeth. Formation of regular secondary dentin appeared to be enhanced on the denervated side at 30 d and 90 d postoperative...Continue Reading

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Nov 29, 2011·Pediatric Radiology·Larry A BinkovitzRichard L Ehman

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Citations

Aug 1, 1997·Acta Odontologica Scandinavica·I Fristad
Feb 3, 2016·Anatomical Science International·Masato MatsuoAkira Iimura
Dec 25, 2015·Journal of Endodontics·Anthony J SmithPaul R Cooper
Nov 25, 2003·European Journal of Oral Sciences·Vaska Vandevska-RadunovicInger Hals Kvinnsland
Jun 12, 2010·International Journal of Paediatric Dentistry·Esti DavidovichBenjamin Peretz
Aug 21, 2013·Anatomia, histologia, embryologia·P R SouzaE G Araujo

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