Effect of full crown preparation on pulpal blood flow in man

© 2016 Elsevier Ltd. All rights reserved. Objective To determine if full crown preparation causes an increase in pulpal blood flow (PBF), indicating inflammation, in human subjects. Design The experiments were carried out on 35 intact, mandibular posterior teeth in 13 subjects: 32 were abutments for...

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Main Authors: Marisa Sukapattee, Sitthichai Wanachantararak, Varisara Sirimaharaj, Noppakun Vongsavan, Bruce Matthews
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/55144
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spelling th-cmuir.6653943832-551442018-09-05T03:08:13Z Effect of full crown preparation on pulpal blood flow in man Marisa Sukapattee Sitthichai Wanachantararak Varisara Sirimaharaj Noppakun Vongsavan Bruce Matthews Biochemistry, Genetics and Molecular Biology Dentistry Medicine © 2016 Elsevier Ltd. All rights reserved. Objective To determine if full crown preparation causes an increase in pulpal blood flow (PBF), indicating inflammation, in human subjects. Design The experiments were carried out on 35 intact, mandibular posterior teeth in 13 subjects: 32 were abutments for 16 fixed bridges that replaced first molars; the other 3 were first premolars adjacent to abutment teeth that served as un-operated controls. Crown preparations were made using an air-rotor with water-spray under regional block anaesthesia (4% articaine with epinephrine 1:100,000). PBF was recorded with a laser Doppler flow meter (LDF) before and after administering the anaesthetic, with the LDF probe on the buccal enamel. PBF was then recorded from the abutment teeth with the probe on buccal dentine after preparing the buccal surfaces of both teeth, after completing the crown preparations, and after 1 and 7 days. PBF was also recorded from the buccal enamel of the control teeth on each occasion. Results The mean ± S.D. PBF values before and after anaesthesia were 2.63 ± 2.13 and 2.42 ± 2.38P.U. respectively, which were not significantly different (Paired t-test). The mean values for the abutment teeth after buccal preparation, after complete crown preparation, and after 1 and 7 days were 5.20 ± 2.49, 4.53 ± 2.52, 4.92 ± 2.98 and 5.48 ± 2.65P.U. respectively. The 4 values for each tooth were not significantly different (two-way RM ANOVA). In the control group, the values under all six conditions were not significantly different. Conclusions Regional block anaesthesia produced no change in PBF, nor did full-crown preparation, neither immediately after the procedure nor 1 and 7 days later. 2018-09-05T02:52:22Z 2018-09-05T02:52:22Z 2016-10-01 Journal 18791506 00039969 2-s2.0-84976444767 10.1016/j.archoralbio.2016.06.005 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84976444767&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/55144
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Biochemistry, Genetics and Molecular Biology
Dentistry
Medicine
spellingShingle Biochemistry, Genetics and Molecular Biology
Dentistry
Medicine
Marisa Sukapattee
Sitthichai Wanachantararak
Varisara Sirimaharaj
Noppakun Vongsavan
Bruce Matthews
Effect of full crown preparation on pulpal blood flow in man
description © 2016 Elsevier Ltd. All rights reserved. Objective To determine if full crown preparation causes an increase in pulpal blood flow (PBF), indicating inflammation, in human subjects. Design The experiments were carried out on 35 intact, mandibular posterior teeth in 13 subjects: 32 were abutments for 16 fixed bridges that replaced first molars; the other 3 were first premolars adjacent to abutment teeth that served as un-operated controls. Crown preparations were made using an air-rotor with water-spray under regional block anaesthesia (4% articaine with epinephrine 1:100,000). PBF was recorded with a laser Doppler flow meter (LDF) before and after administering the anaesthetic, with the LDF probe on the buccal enamel. PBF was then recorded from the abutment teeth with the probe on buccal dentine after preparing the buccal surfaces of both teeth, after completing the crown preparations, and after 1 and 7 days. PBF was also recorded from the buccal enamel of the control teeth on each occasion. Results The mean ± S.D. PBF values before and after anaesthesia were 2.63 ± 2.13 and 2.42 ± 2.38P.U. respectively, which were not significantly different (Paired t-test). The mean values for the abutment teeth after buccal preparation, after complete crown preparation, and after 1 and 7 days were 5.20 ± 2.49, 4.53 ± 2.52, 4.92 ± 2.98 and 5.48 ± 2.65P.U. respectively. The 4 values for each tooth were not significantly different (two-way RM ANOVA). In the control group, the values under all six conditions were not significantly different. Conclusions Regional block anaesthesia produced no change in PBF, nor did full-crown preparation, neither immediately after the procedure nor 1 and 7 days later.
format Journal
author Marisa Sukapattee
Sitthichai Wanachantararak
Varisara Sirimaharaj
Noppakun Vongsavan
Bruce Matthews
author_facet Marisa Sukapattee
Sitthichai Wanachantararak
Varisara Sirimaharaj
Noppakun Vongsavan
Bruce Matthews
author_sort Marisa Sukapattee
title Effect of full crown preparation on pulpal blood flow in man
title_short Effect of full crown preparation on pulpal blood flow in man
title_full Effect of full crown preparation on pulpal blood flow in man
title_fullStr Effect of full crown preparation on pulpal blood flow in man
title_full_unstemmed Effect of full crown preparation on pulpal blood flow in man
title_sort effect of full crown preparation on pulpal blood flow in man
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84976444767&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55144
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