SciELO - Scientific Electronic Library Online

 
vol.10 issue4Spontaneous oral bleeding in children with malignant neoplasm. Its relation with trombocytopeniaDentinogenesis imperfect: Case report author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Revista odontológica mexicana

Print version ISSN 1870-199X

Abstract

ROMO AREVALO, Enrique et al. Microscopic in vitro analysis of the Candida albicans adherence in acrylic resin used to process dentures with three different techniques. Rev. Odont. Mex [online]. 2006, vol.10, n.4, pp.167-172. ISSN 1870-199X.

Antecedents

Prosthetic stomatitis is associated to the adherent and colonization of Candida albicans to denture bases and other cofactors such as acidic pH, high carbohidrate diet, systemic diseases as well as pharmacological treatments.

Objective

To analyze Candida albicans adherence in vitro on different samples of polymetacrilate acrylic resin used for denture base, processed with three different techniques using scanning electron microscopy (SEM).

Study design

18 different samples of acrylic resin were made using three different techniques. Candida albicans was inoculated in vitro for 24 and 48 hours. These samples were observed under the microscope, getting pictures of them at 600x, 1,500x and 6,000x magnification.

Results

The resin elaborated with thermopolimerization injection (TPI) presents pores of 1-2 microns in diameter. At 24 hours after inoculation blastoconidios can be observed, as well as the formation of pseudomycelium while at 48 there are numerous cells in gemmation. In auto and termopolimerization injection (ATPI) there are pores measuring .5-5 microns in diameter as well as cracks with 100 microns in length. At 24 hours the blastoconidios have irregular shapes while at 48 hours there are pseudomycelium, gemmation and cells present irregularities. In microwave polimerization (MP) there are pores with 1-5 microns in diameter. At 24 hours there are pseudomycelium anode cells in gemmation, while at 48 hours the pseudomycelium formation as well as gemmation is increased.

Conclusions

Acrylic resin elaborated with the ther-mopolimerization injection technique presents a surface with less defects of the three studied techniques and there is no significant difference in the number of adhered cells at 24 and 48 hours after inoculation.

Keywords : Candida albicans; scanning electron microscopy; prosthetic stomatitis; adherence.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )