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Tytuł:
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In vivo temperature rise and acute inflammatory response in anesthetized human pulp tissue of premolars having Class V preparations after exposure to Polywave® LED light curing units.
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Autorzy:
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Gross DJ; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Dávila-Sánchez A; Restorative Dentistry Department, San Francisco de Quito University (USFQ), Diego de Robles y Avenida Interoceánica, Quito 170901, Ecuador.
Runnacles P; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Zarpellon DC; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Kiratcz F; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Campagnoli EB; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Alegría-Acevedo LF; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Coelho U; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil.
Rueggeberg FA; Dental Materials Section, Department of Restorative Sciences, Dental College of Georgia, Room GC 4344, Augusta University, 1430 John Wesley Gilbert Drive, Augusta, GA 30912, USA.
Arrais CAG; Department of Restorative Dentistry, State University of Ponta Grossa, Rua General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, Parana 84030-900, Brazil. Electronic address: .
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Źródło:
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Dental materials : official publication of the Academy of Dental Materials [Dent Mater] 2020 Sep; Vol. 36 (9), pp. 1201-1213. Date of Electronic Publication: 2020 Jun 20.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Publication: 1998- : Kidlington, Oxford, UK : Elsevier Science
Original Publication: Copenhagen : Munksgaard, c1985-
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MeSH Terms:
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Curing Lights, Dental*
Light-Curing of Dental Adhesives*
Bicuspid ; Composite Resins ; Dental Pulp ; Humans ; Temperature
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Contributed Indexing:
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Keywords: Curing light; Histology; Humans; Immunohistochemistry; Pulp temperature; Random allocation
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Substance Nomenclature:
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0 (Composite Resins)
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Entry Date(s):
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Date Created: 20200625 Date Completed: 20201204 Latest Revision: 20201214
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Update Code:
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20240105
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DOI:
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10.1016/j.dental.2020.05.015
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PMID:
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32576408
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Objective: To evaluate the influence of light emitted from two Polywave®, LED light-curing units (LCU) on in vivo pulp temperature (PT) rise and signs of acute inflammatory response in pulps of human premolar having deep Class V preparations.
Methods: Sixty intact, first premolars from 15 volunteers requiring extraction received infiltrative anesthesia. A sterile thermocouple probe was inserted within the pulp tissue through a minute occlusal pulp exposure in only 45 teeth (n = 9) to continuously monitor PT (°C). A deep buccal Class V preparation was created, and the surface was exposed to light from a commercial Polywave LCU (Bluephase 20i (20i), Ivoclar Vivadent) or from an experimental LCU (Exp) using the exposure modes (EM): 1s/Exp and 2s/Exp, 10s/20i, 20s/20i, and 60s/20i. Peak PT and PT rise values above baseline (ΔT) data were evaluated using a one-way ANOVA followed by Tukey's post-hoc test (α = 5%). Teeth used for histological and immunohistochemical analyses (n = 3) were extracted approximately 2 h after exposure to the LCU.
Results: No significant difference in peak PT and ΔT values was noted between 2s/Exp and 20s/20i groups, which both exhibited higher values than 1s/Exp and 10s/20i groups (p < 0.001). Dilated and congested blood vessels were seen after exposure to 1s/Exp, 2s/Exp, or 60s/20i EMs. The expression of IL-1β and TNF-α tended to be more intense when higher irradiance was delivered.
Significance: Although higher irradiance delivered over a short exposure caused lower PT rise than 5.5 °C, such EMs should be used with caution, as they have more potential to harm the pulp tissue.
(Copyright © 2020 The Academy of Dental Materials. Published by Elsevier Inc. All rights reserved.)
