3469 Immediate Effect of Ozone Application In-vivo on DIAGNOdent Readings
L. ABU-NABA'A, Jordan University of Science and Technology, Irbid, Jordan, H.M. AL SHORMAN, Queen's University of Belfast, United Kingdom, and E. LYNCH, Queens University Belfast, United Kingdom

Ozone is proposed as a novel pharmaceutical approach to manage fissure caries and could be followed up using DIAGNOdent. Aim: to test the immediate effects of Ozone treatment of primary occlusal pit and fissure caries (PFC) on DIAGNOdent readings in-vivo. Methods: Permanent teeth with non-cavitated PFC lesions were enrolled in 90 patients. Teeth were cleaned (Prophyflex 2®, KaVo, Germany) and the following were recorded: clinical severity (Ekstrand KR et al, Caries Res. 1998;32:247-54.), DIAGNOdent® (KaVo, Germany) and ECM IV (LODE BV, Netherlands) standard scale readings. After randomisation, 182 PFC lesions were treated with Ozone for 10 seconds (HealOzone unit, CurOzone USA) and another set of DIAGNOdent readings were taken. Results: Spearman's correlation coefficient showed significant correlations between scores obtained from the diagnostic tools (p<0.01). Ozone produced a significant reduction in the DIAGNOdent readings (Wilcoxon's Signed Ranks Test and Student's t-test of Loge (value before O3/value after O3), p<0.05). 51.6% of the teeth had a reduction, 6.1% had no change and the remainder had an increase in DIAGNOdent readings after treatment. Conclusion: At baseline, DIAGNOdent scores correlated significantly with scores obtained by other diagnostic tools. The application of Ozone in-vivo on PFC lesions produced an immediate drop in the DIAGNOdent readings. Such change should be followed up for longer periods.

Seq #359 - Clinical Preventive and Restorative Studies
10:15 AM-11:30 AM, Saturday, 13 March 2004 Hawaii Convention Center Exhibit Hall 1-2

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