IN VITRO ADHERENCE OF BACTERIA TO BLEACHED OR UNBLEACHED ENAMEL SURFACES

The purpose of this in vitro study was to evaluate the effects of three 10% carbamide peroxide bleaching agents on adherence of bacteria to tooth enamel surface. Enamel specimens were subjected to one of three carbamide peroxide solutions for 8 h per day for 30 days. Control specimens were kept in saline solution. Profilometer evaluation of surface roughness was performed on all specimens. The adherence of Streptococcus mutans was determined bacteriologically. There was no significant difference in surface roughness between the untreated and treated enamel specimens but a statistically significant difference was found in the adherence of S. mutans to bleached and unbleached enamel specimens. Specimens treated with Opalescence showed the highest adherence.

[1]  Bitter Nc,et al.  The effect of four bleaching agents on the enamel surface: a scanning electron microscopic study. , 1993 .

[2]  C. Torneck,et al.  Adhesion of a resin composite to bleached and unbleached human enamel. , 1993, Journal of endodontics.

[3]  P. Spencer,et al.  Characterization of enamel exposed to 10% carbamide peroxide bleaching agents. , 1993, Quintessence international.

[4]  R. McGuckin,et al.  Alterations in human enamel surface morphology following vital bleaching. , 1992, The Journal of prosthetic dentistry.

[5]  D. Charlton,et al.  Carbamide peroxide bleaching: effects on enamel surface hardness and bonding. , 1992, Operative dentistry.

[6]  C. Torneck,et al.  The Effect of Carbamide-Peroxide Gel on the Shear Bond Strength of a Microfil Resin to Bovine Enamel , 1992, Journal of dental research.

[7]  T. Vijayaraghavan,et al.  At-home bleaching system: effects on enamel and cementum. , 1991, Journal of esthetic dentistry.

[8]  H. O. Heymann,et al.  Nightguard vital bleaching: Effects of various solutions on enamel surface texture and color , 1991 .

[9]  H. O. Heymann,et al.  Nightguard vital bleaching: how safe is it? , 1991, Quintessence international.

[10]  V. D. Williams,et al.  Effect of microbial contamination and pH changes in storage solutions during in vitro assays of bonding agents. , 1990, Dental materials : official publication of the Academy of Dental Materials.

[11]  H. O. Heymann,et al.  Nightguard vital bleaching: effects on enamel surface texture and diffusion. , 1990, Quintessence international.

[12]  H. Shintani,et al.  Streptococcal Adherence on Various Restorative Materials , 1988, Journal of dental research.

[13]  R. Gibbons.  Microbial Ecology Adherent Interactions Which May Affect Microbial Ecology in the Mouth , 1984, Journal of dental research.

[14]  R. S. Smith,et al.  Urea peroxide solution in the treatment of gingivitis in orthodontics. , 1978, American journal of orthodontics.

[15]  L. Salkin,et al.  The effect of a urea peroxide rinse on dental plaque and gingivitis. , 1976, Journal of periodontology.

[16]  R. Eisenberg,et al.  The influence of urea peroxide gel on plaque, calculus and chronic gingival inflammation. , 1973, Journal of periodontology.

[17]  J. van Houte,et al.  On the formation of dental plaques. , 1973, Journal of periodontology.

[18]  B. Shipman,et al.  The effect of a urea peroxide gel on plaque deposits and gingival status. , 1971, Journal of periodontology.