• The Journal of the Korean dental association
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• v.34 no.11 s.330
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• pp.831-832
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• 1996

• Journal of Oral Medicine and Pain
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• v.32 no.3
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• pp.273-281
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• 2007

Zinc compounds have been used in various fields - cosmetics, medicine, and dentistry -because of its effective functions to human tissues or organs. Especially, it is well known that zinc has many biologic effects in oral cavity. Zinc ion can affect various oral microorganisms, resulting in reduction of oral bacteria, dental plaque, and dental caries. Also, zinc ion has an ability to reduce amounts of oral anaerobic bacteria and oral VSC and can reduce oral malodor. The author summarized the characteristics and toxicity of zinc, several forms of zinc compounds applied in human tissues, and reviewed biologic effects of Zinc in oral cavity (anti-bacterial effects, anti-plaque effects, anti-caries effects, and anti-VSC effects of zinc). Because of many advantages of zinc in oral cavity, it can be concluded that application of zinc compound to various oral diseases will be extended and activated, and promising.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.409-410
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• 2017

본 연구는 편백 에션셜 오일을 이용하여 치아우식증과 치주질환을 예방하기 위한 효과적인 구강양치액을 연구개발하고자 수행되었다. Streptococcus mutans에 대한 항미생물 효과 및 치면세균막 형성에 미치는 영향을 실험실연구(in vitro)와 전임상연구(preclinical observations)를 통해 조사하였다. 편백에센셜오일은 실험실 연구결과 S. mutans 성장 억제효과와 항미생물 효과를 보였고, 전임상시험 결과 자원자들의 치면세균막 지수가 감소하였다. 편백 에센셜 오일은 뛰어난 항미생물 효과와 치면세균막 억제를 보이는 것으로 나타났다.

• International Journal of Oral Biology
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• v.34 no.4
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• pp.169-176
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• 2009

• The Journal of the Korean dental association
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• v.24 no.9 s.208
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• pp.785-792
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• 1986

• The Journal of the Korean dental association
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• v.22 no.8 s.183
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• pp.651-653
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• 1984

치관부 파절이나 치아결손 혹은 치아형태의 이상이나 변색된 치아등으로 보철치료가 요구되는 경우 저작, 연하, 발음등의 회복과 심미적인 회복이 중요한 목적이 되며, 전치부에서는 심미성이, 구치부에서는 기능적인 회복이 더욱 강조된다. 보철치료후 치료목적을 달성하고 건강한 구강내의 상태를 유지하기 위해서는 보철물이 지대치 및 주위조직에 생물학적으로 조화되어 병적상태를 유발시키지 않아야 하며, 이를 위해서는 시술전에 올바른 진단과 적절한 치료계획을 세우고, 지대치 형성, 인상채득 및 임시관 장착, 금속관 및 가공의치 제작, 구강내의 시적(try-in), cementation등 모든 과정을 주위조직과 관련하여 주위 깊게 행하여야 한다.

• Journal of dental hygiene science
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• v.5 no.4
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• pp.251-258
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• 2005

The objective of this research was to analyze curriculum of dental hygiene education program for B.S degree in US and compare with Korea and Japan. The curriculum was classified six domain based on job classification and National Board Examination in Korea. Oral biology content included oral anatomy,dental anatomy,oral histology,oral pathology. Oral physiology was excluded. Clinical dentistry content included only oral radiology, periodontics, dental material,pain control. Most program integrated clinical dental hygiene courses. Most program provided dental practice management content and dental hygiene research courses. Diverse program such as A.S degree,B.S degree,degree completion,distance education programs enabled students to develop their career effectively.

• The Korean Journal of Oral and Maxillofacial Pathology
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• v.42 no.6
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• pp.167-174
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• 2018

Natural products are vastly utilized as a source of chemotherapeutic agents for human cancers. Kochia scopraia is traditionally used for the cure of urological and dermatological diseases. Recently, methanol extract of Kochia scoparia (MEKS) has been shown to have anti-cancer activity to various human cancers. However, there is no report demonstrating the anti-cancer activity of MEKS in human mucoepidermoid carcinoma (MEC) cells. In this study, the authors studied the effects of MEKS on the cell proliferation and underlying mechanism in YD15 human MEC cells. MEKS decreased YD15 cell proliferation proven by trypan blue exclusion assay and induced apoptosis, evidenced by cell cycle analysis and western blotting. Autophagy induction by MEKS was verified by western blotting. In addition, MEKS regulated the expression of phosphorylated Akt, phosphorylated p38 and Nrf2 protein. This results can imply that MEKS might be a potential candidate for the treatment of human MEC cells.

• Journal of Life Science
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• v.31 no.3
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• pp.330-337
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• 2021

This study was conducted to investigate the potential of Stewartia koreana as oral healthcare materials. The antibacterial activity of ethanol extracts from leaves and branches of S. koreana against oral bacteria was confirmed. The leaf and branch extracts (1 mg/disc) showed antibacterial activity against P. gingivalis only among several tested oral bacteria. The leaf extracts showed higher antibacterial activity, with values similar to those of chlorhexidine, which was used as a positive control. The MIC of the leaf extract against P. gingivalis was 0.4 mg/ml and showed bacteriostatic action. The inhibitory effects of the extract on biofilm formation and on gene expression related to biofilm formation by P. gingivalis were determined by biofilm biomass staining, scanning electron microscopy (SEM), and qRT-PCR analysis. The biofilm production rate and cell growth of P. gingivalis in the cultures treated with 0.2-2.0 mg/ml of S. koreana leaf extracts were significantly decreased in a concentration-dependent manner. The inhibitory effect on the formation of P. gingivalis biofilms at concentrations of 1 mg/ml was confirmed by SEM. The qRT-PCR analysis showed concentration-dependent suppression of the fimA and fimB gene expression associated with fimbriae formation in the cultures treated with 0.2-2.0 mg/ml S. koreana leaf extract. These results support the conclusion that S. koreana leaf extracts can be used as oral healthcare materials derived from natural materials, as demonstrated by the antibacterial action and inhibition of biofilm formation of P. gingivalis.

• The Journal of the Korean dental association
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• v.27 no.6 s.241
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• pp.521-526
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• 1989

인공치아의 선택은 각 환자에 직접 관련이 있는 몇가지 물리적 요소와 생물학적 요소에 대한 지식과 이해를 요한다. 그러므로 치과의사가 생물기계학적 정보를 모으고 관련성을 찾고 평가해서 환자 개개인의 심미적 요구와 기능적 요구를 충족시킬 수 있도록 선택해 줄 유일한 사람이기 때문에 이 단계의 치료는 반드시 치과의사가 해야 한다. 인공치아의 선택은 비교적 간단하고 시간이 걸리지 않는 과정이나 여기에는 충분한 경험과 확신성의 개발이 요구된다. 이러한 지식과 정보를 토대로 하여 선택된 치아도 임시의치상에 배열될 때 까지는 예비적 선택이 되며 최종선택은 환자의 구강내에게 평가되고 관찰한 후에 결정한다.