Temperature Changes Caused by Light Curing of Fiber-reinforced Composite Resins

Overview

Journal J Conserv Dent

Specialty Dentistry

Date 2015 Jun 13

PMID 26069409

Citations 2

Authors

Nurcan Ozakar Ilday

Omer Sagsoz

Ozcan Karatas

Yusuf Ziya Bayindir

Neslihan Celik

Affiliations

Soon will be listed here.

Abstract

Objective: The aim of the study is to evaluate temperature change in fiber-reinforced composite (FRC) resin photopolymerized with a light-emitting diode (LED) light-curing unit (LCU).

Materials And Methods: Forty dentine disks (1 mm thick and 8 mm diameter) were prepared from human molars. The FRC specimens (2 mm thickness and 8 mm diameter) consisted of polyethylene fiber (Construct (CT)) products or glass fiber (ever Stick (ES)) and one hybrid composite bonded to the dentin disks and polymerized with an LED LCU. Control groups were prepared using the hybrid composite. Temperature rise in dentine samples under the FRC bonded disks was measured using a K-type thermocouple, and data were recorded. Temperature change data were subjected to analysis of variance (ANOVA) and Duncan's test.

Results: The results show that addition of fiber (one or two layers) did not change temperature rise values at any of the exposure times (P > 0.05). The CT fiber/two layer/40 s group exhibited the greatest temperature rise (5.49 ± 0.62) and the ES/one layer/10 s group the lowest rise (1.75 ± 0.32). A significant difference was observed in temperature rise measured during 10 and 20 s exposures (P < 0.05).

Conclusion: Maximal temperature rise determined in all groups was not critical for pulpal health, although clinicians need to note temperature rises during polymerization.

Citing Articles

Dimensional stability of short fibre reinforced flowable dental composites.

Raju R, Rajan G, Farrar P, Prusty B Sci Rep. 2021; 11(1):4697.

PMID: 33633198 PMC: 7907147. DOI: 10.1038/s41598-021-83947-x.

Effect of fiber reinforcement on color stability of composite resins.

Karatas O, Ilday N, Bayindir F, Celik N, Seven N J Conserv Dent. 2021; 23(3):299-303.

PMID: 33551604 PMC: 7861077. DOI: 10.4103/JCD.JCD_344_19.

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