• Asociación entre quiste de retención mucoso en el seno maxilar y la presencia de condiciones dentarias adyacentes en radiografías panorámicas en una clínica docente de Lima durante el periodo 2011-2013

      Agurto Huerta, Andrés Marcos; Chamorro Giuffra, Laura Cecilia (Universidad Peruana de Ciencias Aplicadas (UPC)PE, 04/06/2015)
      Objective: To determine the association between the presence of mucous retention cyst in the maxillary sinus , and adjacent dental conditions in patients from undergraduate dental clinic during the period 2011-2013 in Lima Materials and Methods: This is an observational, descriptive, cross-sectional, retrospective study, one thousand, three hundred and seventy three panoramic radiographs of medical records we selected from undergraduate dental clinic, considering an age range and an established period. Results: According to the data analysis, it was observed that the prevalence of mucous retention cyst was 14%, frequently found in the maxillary sinus on the right side, in females and 18 to 29 age group. Mucous retention cyst was found in 46.3 % periodontal disease, 48.9 % pulp pathology and 18.7 % endodontically treated roots. Conclusions: There is a relationship among the presence of mucous retention cyst and the conditions of periodontal disease and pulpal pathology, but the presence of pre-treated teeth.
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    • Evaluación del efecto antibacteriano del gluconato de clorhexidina y amonio cuaternario como tratamiento del biofilm en el sistema de irrigación de las unidades dentales

      Yovera Vargas, July; Munive Méndez, Arnaldo Alfredo (Universidad Peruana de Ciencias Aplicadas (UPC)PE, 04/06/2015)
      Objetive: The aim of this study was to evaluate the antibacterial effectiveness of chlorhexidine gluconate (0.12 %) ,quaternary ammonium (10%) and distilled water for the biofilm treatment of the irrigation system of dental units measured at day 0 (first day), third and seventh day. Materials and methods: Dental units were divided according the application of the substance (chlorhexidine gluconato, quaternary ammonium and distilled water) and the measurement was made before application of the counting colony-forming units per milliliter (CFU/ml) (day 0) and after application of substances in two times (third and seventh day). The measurement consisted of taking water samples from the triple syringe of 40 dental units from the “Clínica Docente UPC”, then the samples were cultivated on MacConkey agar and after 24 hours of incubation CFU/ml were count. The kruskal-wallis test was used to find and analyzed the results. Results: The chlorhexidine gluconate group had an average of 1.94x106CFU/ml 0 day 0.03x106CFU/ml at day three and 0.001x106CFU/ml at day seven, the quaternary ammonium group had an average of 1.13x106CFU/ml at day 0, 0.01x106CFU/ml at day three and 611.11CFU/ml at day seven and the distilled water group had average 1.86x106CFU/ml at day 0, 1.89x106CFU/ml at day three and 1.65x106CFU/ml at day seven of application. Statistically significant differences were found. Conclusion: The quaternary ammonium had a greater antibacterial effect than chlorhexidine and distilled water. This products can be an alternative to control bacterial levels in dental units.
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