Linked Life Data

3164331

Source:http://linkedlifedata.com/resource/pubmed/id/3164331

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1988-7-29
pubmed:abstractText
Oxygen effects on healing gingival wedge excisions were tested using Sprague-Dawley rats. 40 operated controls were maintained at normal pressure in room air. 3 experimental groups of 40 rats each were exposed for 90 min daily to one of the following: (1) 20.8% oxygen at 2.4 atmospheres pressure, (2) 100% oxygen at 1 atmosphere, or (3) 100% oxygen at 2.4 atmospheres. 5 animals in each group were sacrificed at the following times: 30, 54, 78 h and weeks 1, 2, 3, 6 and 12. Histometric analysis was performed using light microscopy. The connective tissue healing above a reference notch on the maxillary first molar mesial root was assessed. The controls failed to show healing comparable to experimental animals until the end of 2 weeks. Enhanced connective tissue healing above the notch was most significant (p less than or equal to 0.05) in the 2.4 atmospheres pressure groups at 3 and 6 weeks when compared to controls. However, by 12 weeks, no significant differences could be detected. New cementum formation was rare and occasional root resorption was observed. Early connective tissue adaptation does not imply eventual attachment as epithelial downgrowth progressively displaced the connective tissue adjacent to the root in both experimental and control groups of this study.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0303-6979
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
222-6
pubmed:dateRevised
2006-10-30
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Periodontal wound healing responses to varying oxygen concentrations and atmospheric pressures.
pubmed:affiliation
Department of Periodontics, Wilford Hall, USAF Medical Center, San Antonio, Texas.
pubmed:publicationType
Journal Article