J Korean Acad Nurs.  2012 Jun;42(3):405-413. 10.4040/jkan.2012.42.3.405.

Effects of A-solution on Halitosis and Oral Status in Preoperative NPO Patients

  • 1Eulji University Hospital, Daejeon, Korea.
  • 2College of Nursing, Eulji University, Daejeon, Korea. mhhur@eulji.ac.kr


The aim of this study was to explore the effects of A-solution on halitosis and oral status in preoperative NPO patients.
A nonequivalent control group, non-synchronized pretest-posttest design was used in this study. The participants in this study were 66 patients who were admitted for gynecologic surgery. The experimental treatment was to give oral gargling with A-solution, blended essential oils and diluted with distilled water. To identify the experimental treatment effects, halitosis, salivary pH, and oral status were measured by a portable halitosis detector, visual analogue scale, Bromo Thymol Blue (BTB), Bromo Cresol Purple (BCP) test paper and oral assessment guide. Data were analyzed using chi2-test, t-test with PASW 18.0 version.
Participants were homogeneous before experimental treatment. Objective halitosis in the experimental group, measured by a portable halitosis detector (t= -8.34, p<.001) was significantly lower than the control group. Subjective halitosis was significantly lower in the experimental group (t= -9.29, p<.001). Salivary pH was significantly different between two groups (t=8.81, p<.001). Oral status was significantly better in the experimental group (t= -13.31, p<.001).
These findings indicate that oral gargling using A-solution is effective in reducing patient halitosis, and improving oral status.


Aromatherapy; Mentha piperita; Citrus limon; Melaleuca alternifolia; Halitosis
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