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KMID : 1023420230230010051
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Journal of Dental Hygiene Science
2023 Volume.23 No. 1 p.51 ~ p.59
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Antibacterial Effects of Tea Tree Oil and Mastic Oil to Streptococcus mutans
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Yang Song-Yi
Lee So-Hyun
Parke On-Bi
An Hee-Rang
Yu Yeong-Hyeon
Hong Eun-Bi
Kang Kyung-Hee
Koong Hwa-Soo
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Abstract
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Background: Tea tree oil has antiviral, antimicrobial and antifungal effects and Mastic oil has antifungal and anticancer effects. For synergistic effects of oils, blending oil containing a mixture of two to three oils is recommended. This study aimed to determine the antibacterial effects of Tea tree oil, Mastic oil, and Blending oil containing the two oils in a mixture, to verify and suggest the potential use of these oils as a substance to prevent dental caries.
Methods: Tea tree oil, Mastic oil, and Blending oil with a 1:1 blend of the two oils were diluted in liquid medium to 0% (negative control), 0.5%, 1.0%, and 2.0%. Streptococcus mutans was applied to each experimental group of the three diluted oils and after 8 h culture, the optical density (OD) was measured and the growth inhibition rate for S. mutans was estimated.
Results: Tea tree oil had significantly low OD values across all concentrations (p＜0.05) without significant variation among different concentrations (p＞0.05). Mastic oil did not significantly vary in OD compared to the negative control across all concentrations (p＞0.05) without significant variation among different concentrations (p＞0.05). Blending oil, compared to the negative control, did not significantly vary in OD at 0.5% (p＞0.05) but significant variation was found as the concentration increased (p＜0.05). Additionally, for Tea tree oil and Mastic oil, the growth inhibition rate showed no significant variation according to concentration (p＞0.05), whereas for Blending oil, the growth inhibition rate for S. mutans showed a significant difference at 1.0% (p＜0.05) and at higher concentrations.
Conclusion: Blending oil containing a Tea tree oil and Mastic oil demonstrated a significant growth inhibition effect on S. mutans from the concentration of 1.0%, which suggested its potential use as an effective antibacterial agent for dental caries.
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KEYWORD
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Antibacterial effect, Blending effect, Mastic oil, Streptococcus mutans, Tea tree oil
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