• NADA ISMAH Department of Orthodontics, Faculty of Dentistry, Universitas Indonesia, Jakarta 10430, Indonesia.
  • MIESJE K. PURWANEGARA Department of Orthodontics, Faculty of Dentistry, Universitas Indonesia, Jakarta 10430, Indonesia
  • TUTI RAHMAWATI Department of Orthodontics, Faculty of Dentistry, Universitas Indonesia, Jakarta 10430, Indonesia




Disinfectant, Disinfection, Thermoplastic retainer, Gram-positive bacteria, Streptococcus mutans


Objective: The present study aimed to compare the efficacy of two disinfectants against Gram-positive bacteria, particularly Streptococcus mutans,
for use as a disinfectant for dental retainers.
Methods: In total, 35 thermoplastic retainers in this study were categorized into three immersion groups: control group; mouthwash group, using
chlorhexidine 0.1%; and denture cleanser tablet group. The retainers were worn for 15 days, and Gram-positive bacteria were enumerated before and
after the retainers were immersed.
Results: We found a significant difference in bacterial numbers between the two disinfectant groups and the non-disinfectant or control group. Both
disinfectant groups had decreased numbers of Gram-positive bacteria.
Conclusions: Disinfectant use is effective in decreasing the load of Gram-positive bacteria on thermoplastic retainers.


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How to Cite

ISMAH, N., PURWANEGARA, M. K., & RAHMAWATI, T. (2019). EFFICACY OF DISINFECTANTS AGAINST GRAM-POSITIVE BACTERIA FOUND ON THERMOPLASTIC RETAINERS. International Journal of Applied Pharmaceutics, 11(1), 130–133. https://doi.org/10.22159/ijap.2019.v11s1.180



Original Article(s)