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dc.contributor.authorN. Vongsavanen_US
dc.contributor.authorB. Matthewsen_US
dc.contributor.otherUniversity of Bristolen_US
dc.contributor.otherMahidol Universityen_US
dc.date.accessioned2018-07-04T07:22:37Z-
dc.date.available2018-07-04T07:22:37Z-
dc.date.issued1996-01-01en_US
dc.identifier.citationArchives of Oral Biology. Vol.41, No.1 (1996), 97-103en_US
dc.identifier.issn00039969en_US
dc.identifier.other2-s2.0-0029678596en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0029678596&origin=inwarden_US
dc.identifier.urihttp://repository.li.mahidol.ac.th/dspace/handle/123456789/17561-
dc.description.abstractA laser Doppler blood-flow meter (Moor Type MBF3D) was used to record from the crowns of eight deciduous mandibular incisors in three anaesthetized pigs. The flow-meter probe was attached to the crown either 2 or 6 mm from the gingival margin. Recordings were made from each tooth with the supporting tissues intact, after exposing the root pulp, after cutting the pulp, and after death of the animal. At each stage the effect of wrapping the crown in aluminium foil was determined. There was no significant change in the signals when the root pulp was exposed (p > 0.05, paired t-test). Without foil, cutting the pulp reduced the signal recorded 2 mm from the gingival margin by an average of 85.1% (n = 8, p < 0.001) and at 6 mm by 87.9% (n = 4, p < 0.001). There were further significant reductions (p < 0.01) equivalent to 12.9% and 9.0%, respectively, of the control values when the animal was killed. The foil increased the average blood-flow signals recorded from intact teeth at both 2 and 6 mm from the gingival margin by 77.8% and 98.3% (p < 0.05), respectively. It also had a similar effect after pulp exposure. With foil, cutting the pulp reduced the signal by 86.2% and 92.8% at the two sites, respectively, and post mortem there was a further reduction of 12.4% and 6.1%. Thus, under all conditions the major part of the signal recorded from an intact tooth was from the pulp but a significant component (an average of between 14.9% and 7.2% depending on the conditions) was from tissues outside the tooth. The best performance was obtained with foil and with the probe 6 mm from the gingival margin. Copyright © 1996 Elsevier Science Ltd. All rights reserved.en_US
dc.rightsMahidol Universityen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0029678596&origin=inwarden_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectDentistryen_US
dc.subjectMedicineen_US
dc.titleExperiments in pigs on the sources of laser Doppler blood-flow signals recorded from teethen_US
dc.typeArticleen_US
dc.rights.holderSCOPUSen_US
dc.identifier.doi10.1016/0003-9969(94)00076-Xen_US
Appears in Collections:Scopus 1991-2000

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