Document Detail


Effect of unilateral superior cervical ganglionectomy on mandibular incisor eruption rate in rats.
MedLine Citation:
PMID:  11695708     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To assess the effect of sympathectomy on rat tooth eruption, the effect of a unilateral superior cervical ganglionectomy (SCGx) on eruption rate of ipsi- and contralateral lower incisors was examined. Two experiments were performed. In a first experiment, the eruption rate of ipsilaterally denervated incisors was similar to that of contralaterally innervated incisors, when assessed for up to 28 days after surgery. In a second experiment, under conditions of unilateral unimpeded eruption of incisors performed ipsilaterally or contralaterally to a unilateral SCGx, a significantly lower eruption rate of denervated incisors at the impeded eruption side, and a significantly higher eruption rate of denervated incisors at the unimpeded side were observed, when computed every 2 days. Significant differences in individual Student's t tests at every time interval occurred mainly during the first and the last week of examination. When average daily eruption rate was computed in weekly intervals, a significant interaction between SCGx and the side of impeded or unimpeded eruption was found in a factorial ANOVA, that is, for each of the 4 weeks of examination, sympathetically denervated incisors showed lower eruption rates at the impeded eruption side, and higher eruption rates at the unimpeded side. These results indicate that incisor eruption is not modified by a local sympathetic denervation unless the contralateral lower rat incisor is cut out of occlusion.
Authors:
M G Ladizesky; M A Lama; R A Cutrera; V Boggio; M J Giglio; D P Cardinali
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Autonomic neuroscience : basic & clinical     Volume:  93     ISSN:  1566-0702     ISO Abbreviation:  Auton Neurosci     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-11-06     Completed Date:  2002-03-26     Revised Date:  2009-08-12    
Medline Journal Info:
Nlm Unique ID:  100909359     Medline TA:  Auton Neurosci     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  65-70     Citation Subset:  IM    
Affiliation:
División Osteopatías Médicas, Hospital de Clínicas José de San Martin, Universidad de Buenos Aires, Argentina.
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MeSH Terms
Descriptor/Qualifier:
Animals
Female
Incisor / innervation*,  physiology*
Rats
Rats, Wistar
Superior Cervical Ganglion / physiology*,  surgery
Sympathectomy
Tooth Eruption / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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