Evaluation of the Effect of Different Curing Units and Exposure Times on Pulp Chamber Temperature Using Simulated Pulpal Microcirculation

Journal Title: Meandros Medical and Dental Journal - Year 2020, Vol 21, Issue 2

Abstract

Objective: To compare the elevations in physiological pulp chamber temperature and blood microcirculation during light curing using four different light sources at two different exposure times. Materials and Methods: The study was performed on eighty Class-V cavities divided into eight groups of ten experiments each, according to the curing unit and exposure time. Short-term curing was performed in four groups: quartz-tungsten-halogen (QTH)-20 seconds (s) (XL3000, 3M ESPE, St. Paul, MN, USA); Woodpecker (WP)-15s (Lux V Light Cure Unit, WP, Apexion Dental Products); KR-10s (Demi Plus Dental Curing Light, Kerr Dental) and VL-3s (VALO light-emitting diode Curing Light Xtra Power mode, Ultradent Products, South Jordan, UT, USA). The same units were used for long-term curing at double the exposure time (i.e., QHT-40s, WP-30s, KR- 20s, VL-3+3s). Composite material (Filtek Ultimate, 3M/ESPE) was placed into the cavities, followed by light curing performed at a distance of 1 mm. Temperature changes in the pulp chamber were recorded. The Kruskal-Wallis test, followed by Mann-Whitney U multiple comparisons test, were used for statistical analyses, with p<0.001 considered to be statistically significant. Results: There were no significant differences among the curing units at the same exposure times. However, increases in pulp chamber temperatures varied significantly depending on the curing time (p<0.001). All the curing units induced significantly higher intrapulpal temperature changes at long-term curing times, except the WP groups (p<0.001). WP-30s, KR-20s and VL-3+3s exhibited critical temperature increases >5.5 °C. Conclusion: Longer curing times led to critical temperature increases in the pulp chamber. Shorter curing times can protect the pulp tissue against damage caused by temperature elevations above a certain threshold.

Authors and Affiliations

İhsan Furkan Ertuğrul, Başak Yazkan

Keywords

Related Articles

Effect of Grape Seed Extract on Bone Formation in The Expanded Interpremaxillary Suture

Objective: Widening the inter-maxillary suture is a preferred procedure in orthodontics. However, relapse can occur in some patients after maxillary expansion therapy. This study aimed to increase bone formation in the i...

Evaluation of the Relationship Between Malocclusion and the Periodontal Health, Caries, Socio-economic Status of Children

Objective: In this study, it was aimed to evaluate the relationship between malocclusions and various factors such as periodontal treatment needs, dental caries, anterior segment crowding and parental socio-economic stat...

A Rare Cause of Paresthesia: Hypophosphatemia

Phosphate is a structural molecule for cells and also is used as coenzyme or as seconder messenger. Renal or gastrointestinal loss of phosphate, diabetes mellitus, chronic alcoholism, hyperparathyroidism, sepsis, increas...

Social and Psychiatric Results of Migration Among Women in a Western City in Turkey

Objective: The aim of this study was to assess the mental health of women who have been subjected to forced migration and the reasons of migration, in a western city sample of Turkey. Materials and Methods: This cross-s...

Should Discectomy Performed Without Replacement be the First Choice in Patients with Pain and Reduced Mouth Opening?

Objective: In this study, we evaluated the pain and functional development of patients with internal derangements before and after discectomy. Materials and Methods: This was a retrospective cohort study in which patien...

Download PDF file
  • EP ID EP688728
  • DOI 10.4274/meandros.galenos.2019.43255
  • Views 129
  • Downloads 0

How To Cite

İhsan Furkan Ertuğrul, Başak Yazkan (2020). Evaluation of the Effect of Different Curing Units and Exposure Times on Pulp Chamber Temperature Using Simulated Pulpal Microcirculation. Meandros Medical and Dental Journal, 21(2), -. https://europub.co.uk/articles/-A-688728