Temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following simulated direct pulp capping/Promene temperature u komori pulpe indukovane polimerizacijom dentalnih restaurativnih materijala na bazi smole nakon simuliranog direktnog prekrivanja pulpe

The objective of this study was to measure temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following a simulated procedure of direct pulp capping. Class I cavities with a microperforation at the pulp horn were prepared in extracted human molar tee...

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Bibliographic Details
Published in:Hemijska industrija 2019-07, Vol.73 (4), p.239
Main Authors: Petrovic, Violeta, Stasic, Jovana N, Komlenic, Vojislav, Savic-Stankovic, Tatjana, Latkovic, Marina, Miletic, Vesna
Format: Article
Language:English
Subjects:
Calcium silicate
Hydroxides
LEDs
Polymer industry
Polymerization
Polymers
Silicates
Silicon compounds
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Summary:The objective of this study was to measure temperature changes in the pulp chamber induced by polymerization of resin-based dental restoratives following a simulated procedure of direct pulp capping. Class I cavities with a microperforation at the pulp horn were prepared in extracted human molar teeth. The complete procedure of direct pulp capping and cavity restoration was performed with the root part of extracted teeth fixed in a water bath at 37 [degrees]C. Mineral trioxide aggregate, bioactive dentin substitute or calcium-hydroxide paste were used as pulp capping materials. Cavities were restored with a light-cured or chemically-cured resin-modified glass ionomer, universal adhesive and a bulk-fill composite, cured with a high-intensity LED unit. Pulp capping materials caused a slight temperature decrease. Lower temperature increase was recorded during light-curing of the glass ionomer liner after direct capping with mineral trioxide aggregate and calcium-hydroxide than that recorded for the bioactive dentin substitute. Adhesive light-curing increased temperature in all groups with higher mean temperatures in groups with chemically-cured as compared to those for the light-cured glass ionomer liner. Direct pulp capping with mineral trioxide aggregate or calcium-hydroxide followed by the light-cured resin-modified glass ionomer liner and a bonded bulk-fill composite restoration induced temperature changes below the potentially adverse threshold of 42.5 [degrees]C. Keywords: Calcium silicate cement; glass ionomer cement; dental adhesive; resin-based composite; polymer; pulp temperature (Naucni rad) Cilj ovog rada je bio da se izmere temperaturne promene u komori pulpe indukovane polimerizacijom dentalnih restaurativnih materijala na bazi smole nakon simulirane procedure direktnog prekrivanja pulpe. Kaviteti I klase sa mikroperforacijom u predelu roga pulpe preparisani su na ekstrahovanim humanim molarima. Kompletan postupak direktnog prekrivanja i restauracije kaviteta uraden je nakon fiksacije korenskog dela zuba u vodenom kupatilu na temperaturi od 37 [degrees]C. Mineralni trioksidni agregat, bioaktivni dentinski zamenik ili pasta na bazi Ca[(OH).sub.2] korisceni su kao materijali za direktno prekrivanje pulpe. Kaviteti su restaurirani svetlosno-polimerizujucim ili hemijski-polimerizujucim smolom-modifikovanim glas jonomer cementom, univerzalnim adhezivom i "bulk-fill" kompozitom, polimerizovanim LED lampom velikog intenziteta. Materijali za direktno pr
ISSN:0367-598X
DOI:10.2298/HEMIND190504020P