Multimodality imaging of the effects of a novel dentifrice on oral biofilm.

Autor: Ajdaharian J; Beckman Laser Institute, University of California, Irvine, California, 92612., Dadkhah M, Sabokpey S, Biren-Fetz J, Chung NE, Wink C, Wilder-Smith P
Jazyk: angličtina
Zdroj: Lasers in surgery and medicine [Lasers Surg Med] 2014 Sep; Vol. 46 (7), pp. 546-52. Date of Electronic Publication: 2014 Jun 10.
DOI: 10.1002/lsm.22265
Abstrakt: Objective: Oral biofilm formation and progression on the surface of the tooth can lead to advanced oral disease such as gingivitis. The purpose of this randomized, controlled, double-blinded study was to evaluate the effects of a novel dental gel on oral plaque biofilm using multimodal imaging techniques.
Materials and Methods: Twenty-five subjects with moderate gingival inflammation (Löe and Silness Gingival Index ≥2) and pocket depths <4 were randomly assigned to brush twice daily for 21 days with the test or the control dental gel. In vivo multimodality in situ imaging was performed over a 3-week period using in vivo Optical Coherence Tomography (OCT) and Non-Linear Optical microscopy (NLOM). Plaque levels, gingival inflammation and gingival bleeding were also charted on days 0, 7, 14, and 21 using standard clinical indices.
Results: After 3 weeks, OCT and NLOM images showed a macroscopic break-up of the plaque layer and smaller, fragmented residual deposits in the test group with no apparent changes in the pellicle. Biofilm was also reduced in the control group, but to a lesser degree with regard to thickness, continuity and surface area. Paralleling these imaging results, clinical indices were significantly improved in both groups (P < 0.05) and significantly lower in the test group (P < 0.05).
Conclusion: Both dental gels reduced oral biofilm with the test gel showing greater efficacy (P < 0.05) as determined by clinical and imaging parameters.
(© 2014 Wiley Periodicals, Inc.)
Databáze: MEDLINE
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