The distribution and morphological characteristics of axons innervating the periodontal ligament of reimplanted teeth in cats.
Twelve weeks after reimplanting lower canines the distribution and characteristics of myelinated and non-myelinated axons within the periodontal ligament were investigated by light and electron microscopy. The ligament was examined at 2-mm intervals along the length of the root of four reimplanted teeth and of the contralateral canines, which served as controls. In each case the periodontal ligament was reinnervated. In two of the teeth, which showed extensive apical resorption, the innervation was much less than in control teeth. In two teeth showing minimal or no apical resorption the degree of innervation at the most apical level did not differ significantly from controls.
Loescher
A R
AR
Department of Oral and Maxillofacial Surgery, University of Sheffield School of Clinical Dentistry, Charles Clifford Dental Hospital, U.K.
Holland
G R
GR
Robinson
P P
PP
D000818:Animals; D001369:Axons / Q000473:pathology / Q000648:ultrastructure*; D002415:Cats; D003481:Cuspid / Q000294:innervation; D005260:Female; D008334:Mandible; D008465:Mechanoreceptors / Q000502:physiology; D008854:Microscopy, Electron; D009413:Nerve Fibers, Myelinated / Q000473:pathology; D009416:Nerve Regeneration; D010513:Periodontal Ligament / Q000294:innervation* / Q000473:pathology; D012391:Root Resorption / Q000209:etiology; D014090:Tooth Replantation / Q000009:adverse effects