13th World Congress for Laser Dentistry

26-28, April 2012

Barcelona, Spain

Meeting Abstract

Sponsors: World Federation for Laser Dentistry

- Oral Presentation 143

TITLE: Using photoactivated disinfection and DIAGNOdent to increase Tunnel technique success.

AUTHORS: Sadighi A, Rikhtegaran S, Fattahi Sh, Amani B.

Laser department, Dentistry faculty, Tabriz University of medical science

SOURCE: Med Oral Patol Oral Cir Bucal. 2012 May 1;17(Supplement1):S143.

* doi:10.4317/medoral.17643642

http://dx.doi.org/10.4317/medoral.17643642

Abstract

Introduction: The Tunnel technique is a conservative preparation design to treat proximal caries with limited extension as an alternative method to the conventional class ll preparation. Effectiveness of caries removal is a problem in this method which could lead to secondary caries .Using DIAGNOdent (laser fluorescence) may decrease chance of remained caries. On the other hand, Photoactivated disinfection (PAD) in which a photosensitizing dye is irradiated with a specific wavelength could be used to decrease bacterial amount of affected tissues.

The aim of the study: Using PAD and DIAGNOdent to increase success of Tunnel technique.

Material and methods: Two groups of 20 extracted human teeth with limited proximal caries had Tunnel technique preparation. In first group DIAGNOdent with long periodontal tip used for caries detection during preparation and samples received a PAD treatment protocol. Second group as control had no special treatment and prepared without using DIAGNOdent and PAD. Samples sectioned for histological evaluation and had analyzed for bacterial content of remained tissues.

Results: In first group remained infected tissues and bacterial amount was statistically less than control group (p<0.05).

Conclusion: Combination of two laser application, PAD and DIAGNOdent , could increase the success rate of Tunnel preparation technique.