Real-Time Analysis of Temperature Changes in Composite Increments and Pulp Chamber During Photopolymerization

Overview

Journal Biomed Res Int

Publisher Wiley

Specialties Biomedical Engineering
Biotechnology
General Medicine

Date 2015 Nov 12

PMID 26557716

Citations 6

Authors

Ryan Jin-Young Kim

In-Bog Lee

Jin-Young Yoo

Su-Jung Park

Sin-Young Kim

Young-Ah Yi

Ji-Yun Hwang

Deog-Gyu Seo

Affiliations

Soon will be listed here.

Abstract

Objective: The aim of this study was to evaluate the temperature change at various sites within the composite and on the pulpal side of dentin during polymerization of two composite increments.

Materials And Methods: Class I cavities prepared in third molars were restored in two composite increments (n = 5). Temperatures were measured for 110 s using eight thermocouples: bottom center of cavity (BC), top center of 1st increment (MC), top center of 2nd increment (TC), bottom corner of cavity (BE), top corner of 1st increment (ME), top corner of 2nd increment (TE), pulpal side of dentin (PD), and center of curing light guide tip (CL).

Results: Maximum temperature values (°C) measured during polymerization of 1st increment were MC (59.8); BC (52.8); ME (51.3); CL (50.7); BE (48.4); and PD (39.8). Maximum temperature values during polymerization of 2nd increment were TC 58.5; TE (52.6); MC (51.7); CL (50.0); ME (48.0); BC (46.7); BE (44.5); and PD (38.8).

Conclusion: Temperature at the floor of the cavity was significantly higher during polymerization of 1st increment compared to 2nd increment. Temperature rise was higher at the center than at the corner and at the top surface than at the bottom surface of each increment.

Citing Articles

Effect of Rapid High-Intensity Light-Curing on Increasing Transdentinal Temperature and Cell Viability: An In Vitro Study.

Miranda S, Lins R, Santi M, Denucci G, Silva C, Silva S Polymers (Basel). 2024; 16(11).

PMID: 38891413 PMC: 11175155. DOI: 10.3390/polym16111466.

Thermal Sensing of Photo-Activated Dental Resin Composites Using Infrared Thermography.

Bakhsh T, Alfaifi A, Alghamdi Y, Nassar M, Abuljadyel R Polymers (Basel). 2023; 15(20).

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How does indirect air-cooling influence pulp chamber temperature in different volume teeth and absence/presence of resin-based composite during light curing?.

Mouhat M, Stangvaltaite-Mouhat L, Finnas E, Andersen A, Evertsen A, Nilsen B BMC Oral Health. 2022; 22(1):538.

PMID: 36424576 PMC: 9694609. DOI: 10.1186/s12903-022-02545-z.

Shrinkage Stress and Temperature Variation in Resin Composites Cured via Different Photoactivation Methods: Insights for Standardisation of the Photopolymerisation.

Sousa G, Guimaraes G, Marcelino E, Rodokas J, de Oliveira Junior A, Cesarino I Polymers (Basel). 2021; 13(13).

PMID: 34201846 PMC: 8272171. DOI: 10.3390/polym13132065.

Pulp Temperature Rise Induced by Light-Emitting Diode Light-Curing Units Using an Ex Vivo Model.

Vinagre A, Ramos J, Rebelo C, Basto J, Messias A, Alberto N Materials (Basel). 2019; 12(3).

PMID: 30699935 PMC: 6384635. DOI: 10.3390/ma12030411.

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