XIX National Congress and VI International of the Spanish Society of Conservative Dentistry

17-19, May 2012

Santiago de Compostela, Spain

Meeting Abstract

Sponsors: Sociedad Española de Odontología Conservadora (SEOC)

- Oral Presentation 12

TITLE: Comparative study of tooth heating during the ultrasonic removal of fiberglass and carbon fiber posts with and without cooling.

AUTHORS

Botello Torres, René Domingo¹

Alegre Domingo, Teresa²

Faus Matoses, Vicente³

Faus Llácer, Vicente J⁴

1.-Estudiante del Máster en Odontología Restauradora y Endodoncia. Universidad de Valencia

2.-Profesora asociada de Patología dental, Odontología conservadora y Endodoncia y Profesora del Máster en Odontología Restauradora y Endodoncia Universidad de Valencia

3.- Profesor asociado de Patología dental, Odontología conservadora y Endodoncia y Profesor del Máster en Odontología Restauradora y Endodoncia Universidad de Valencia

4.-Profesor titular de Patología dental, Odontología conservadora y Endodoncia y Director del Máster en Odontología Restauradora y Endodoncia Universidad de Valencia

SOURCE: Med Oral Patol Oral Cir Bucal. 2012 August 1;17(Supplement2):S12.

* doi:10.4317/medoral.17643796

http://dx.doi.org/10.4317/medoral.17643796

ABSTRACT

Objectives: Comparing the temperature increase in the tooth structure during removal of fiberglass and carbon fiber posts, using ultrasonics with and without cooling. Methodology: 20 molars previously treated endodontically and sectioned at the cemento-enamel junction were divided into two groups depending on the type of post used: Group A: 10 posts FRC Postec Plus # 1. Group B: 10 posts CARBOPOST No. 12. All posts were cemented in palatine canals. Was used to remove an ultrasonic tip Start-X No. 3 and microscopic magnification. The temperature recording was performed in 2 locations; post-tooth interface and root surface, for it was used a thermal imager FLIR B365, were measured every 15 seconds for 1 minute. Results: During removal without cooling of both types of posts, temperatures were up to 150° C in the post-tooth interface. By contrast, the use of water cooling in both types of posts, generated at lower temperatures, better regulated, and which were increased from 30 seconds of instrumentation. There were no significant differences in the temperature achieved in the teeth with fiberglass posts with respect to the teeth with carbon fiber posts. Conclusions: Recorded temperatures were very similar for the removal of both types of posts, with and without cooling. A cooling mechanism proved very effective in controlling the temperature during the removal of any type of post, position or time.

KEYWORDS

Thermography, post removal, fiberglass, carbon fiber, cooling.