• 제목/요약/키워드: Oral environment

검색결과 497건 처리시간 0.031초

스켈링 실습실 방문자의 구강건강행위에 관한 연구 (A study on the oral health behavior of oral prophylaxis clients)

  • 장계원;강용주;정미경
    • 한국치위생학회지
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    • 제10권6호
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    • pp.1083-1093
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    • 2010
  • Objective : The purpose of this study was to examine the relationship of the oral health behavior of oral prophylaxis clients and some residents in a community to their simplified oral environment index. Methods : The subjects in this study were 520 people who had their teeth cleaned in the oral prophylaxis practice lab in the department of dental hygiene at J health college. A survey was conducted from March 23 to June 3, 2010, by way of the self-reported questionnaire. The data materials are analyzed by general characteristics frequency and ratio, the relationship of oral health behavior and sex, age, scaling experience, simplified oral hygiene index $x^{2}$ test analysis. Results : 1. Concerning links between gender and oral health behavior including daily toothbrushing frequency, the largest group of the respondents brushed their teeth three times a day(p<0.05). As to educational experiences on toothbrushing method and the use of oral hygiene supplies, the women had more educational experiences than the men(p<0.05). 2. Regarding connections between age and oral health behavior involving daily toothbrushing frequency, the largest number of the respondents brushed their teeth three times a day in every age group (p <0.001). As for educational experiences on toothbrushing method, those who were in their 50s and up(64.7%) learned about that, and they had more educational experiences with age(p<0.05). As for scaling experiences, the older respondents had their teeth scaled more often (p<0.001). 3. As to relationship between scaling experiences and oral health behavior, there were differences in toothbrushing frequency according to scaling experiences(p <0.05). Regarding educational experiences on toothbrushing method, those who had their teeth cleaned received more toothbrushing education(p<0.001). Concerning smoking, the nonsmokers had more experiences to get their teeth cleaned (p<0.001). 4. As for links between simplified oral environment index and oral health behavior including a time for toothbrushing, the respondents who did toothbrushing after every meal(80.4%) had good simplified oral environment indexes(p<0.05). 5. In regard to relationship between simplified oral environment index and oral health behavior, oral environment index had a positive correlation to the use of oral hygiene supplies( r=0.129**), toothbrushing time(r=0.116**) and educational experiences on toothbrushing method (r=0.099**). Smoking(r=-0.092**) had a negative correlation to that. Conclusion : The above-mentioned findings illustrate that oral health behavior is one of crucial factors to affect oral health status and oral environment care. Therefore oral prophylaxis practice lab visitors should receive education on the right toothbrushing method and the use of oral hygiene supplies to promote their oral health, and an incremental oral health care system that involves regular scaling should be introduced.

Effect of Oral Hygiene Management Process using Natural Gargle Fluid (Cinnamon) on Occlusal Force and Changes in Oral Environment

  • Bo Ram Kim;Kyung Min Kim;Yu mi Kim;Min-Kyoung Park;Min Kyung Lee
    • 대한의생명과학회지
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    • 제30권1호
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    • pp.17-23
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    • 2024
  • In this study, the changes in occlusal strength and oral environment before and after the use of natural gargles containing cinnamon were confirmed. This study involved 42 adults aged 19 or older living in Busan from November 25 to December 2, 2023. Twenty-one people were randomly selected for each of the regular and natural gargles. In this study, the group using natural gargles confirmed an increase in saliva buffering power, a decrease in O'Leary index, and an increase in occlusal strength. Through this, it was confirmed that natural gargles containing cinnamon are helpful in improving the oral environment and occlusal strength.

Analysis of Correlation among Oral Environment, Oral Myofunction, and Oral Microorganisms

  • Kim, Seol-Hee
    • 치위생과학회지
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    • 제19권2호
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    • pp.96-106
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    • 2019
  • Background: Factors affecting oral function include tooth number, oral muscle strength, and oral diseases. This study aimed to investigate the relationship among oral environment, muscle, and microbiology. Methods: Fifty-six elderly individuals in a day care center were included in the study. The survey regarding tongue and lip muscle strength and oral microorganisms was conducted from November to December 2018. Results: Tongue and lip muscle strength were greater in men than women (p>0.05). Tongue muscle strength was greater in the ${\leq}80-year-old$ group ($34.94{\pm}9.85$) than the ${\geq}90-year-old$ group ($25.57{\pm}7.54$) (p<0.05). Tongue muscle strength and lip muscle strength were greater in the ${\geq}15$ functional teeth group ($34.08{\pm}9.31$ and $9.25{\pm}1.63$, respectively) than in the <15 functional teeth group ($28.08{\pm}7.53$ and $7.76{\pm}1.51$, respectively) (p<0.05). Age was significantly correlated with functional tooth number, denture use, and tongue muscle strength. The number of functional teeth was positively correlated with tongue muscle strength, lip muscle strength, and oral microorganisms. Denture use was negatively correlated with tongue and lip muscle strength. Tongue muscle strength was significantly correlated with lip muscle strength. The number of Eubacterium nodatum was higher in men than women. The number of Parvimonas micra and Enterococcus faecalis was higher in the groups with ${\geq}15$ functional teeth, denture use, and greater tongue and lip muscle strength. The number of Lactobacillus casei was higher in the group that uses dentures and with greater tongue strength. Conclusion: Oral microbiology is more important in oral environment and management than oral muscle function. The correlation between oral muscle and oral microorganism requires further study. Therefore, oral care training should be conducted to improve the oral care practice of elderly individuals, maintain oral health through oral care, and prevent the decrease in saliva secretion by aging.

말초신경 재건을 위한 인회석 박막 코팅 미세공성 신경재생관(nerve conduit)의 개발 (DEVELOPMENT OF MICROPOROUS CALCIUM PHOSPHATE COATED NERVE CONDUIT FOR PERIPHERAL NERVE REPAIR)

  • 이종호;황순정;최원재;김성민;김남열;이은진;안강민;명훈;서병무;최진영;정필훈;김명진;김현만
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제29권3호
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    • pp.151-156
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    • 2003
  • This study was performed to develop a useful nerve conduit which provides favorable environment for Schwann cell viability and proliferation. Milipore membrane of $0.45{\mu}m$ pore size was selected because it permits nutritional inflow from the outside of the conduit and prevents from invading the fibrotic tissue into the conduit. The membrane was rolled and sealed to form a conduit of 2mm diameter and 20mm length. To improve the axonal regeneration and to render better environment for endogenous and exogenous Schwann cell behaviour, the microgeometry and surface of conduit was modified by coating with thin film of calcium phosphate. Cellular viability within the conduit and attachment to its wall were assessed with MTT assay and SEM study. Milipore filter conduit showed significantly higher rate of Schwann cell attachment and viability than the culture dish. However, the reverse was true in case of fibroblast. Coating with thin film of low crystalline calcium phosphate made more favorable environment for both cells with minimal change of pore size. These findings means the porous calcium phosphate coated milipore nerve conduit can provide much favorable environment for endogenous Schwann cell proliferation and exogenous ones, which are filled within the conduit for the more advanced strategy of peripheral nerve regeneration, with potential of reducing fibrotic tissue production.

Importance of Oral Environment for Environmental Hormones Interaction with Human Body for Future Research

  • Lee, Seong-Won;Jeon, Jae-Yoon;Oh, Byung-Cheol;Choi, Jong-Won;Ro, Seong-Su;Park, Chang-Joo;Hwang, Kyung-Gyun
    • Journal of Korean Dental Science
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    • 제10권1호
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    • pp.1-9
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    • 2017
  • There is increasing evidence that the environmental hormones may adversely affect the human body. The human reproductive system misrecognizes some of these endocrine disruptors with consequences to reproductive cell differentiation. Therefore, studies on the safety of these substances have been widely carried out to develop the science to create effective legislation to limit or prevent their use or require the development of inert, alternative substances. A few studies have reported that the oral cavity is the pathway for absorption of these substances released from plastic products or environmental hormone substances. This review suggests that the oral environment is vulnerable to exposure to environmental hormones and introduces supporting literature.

칫솔질 교육에 따른 간이구강위생지수(S-OHI) 및 칫솔질 지식변화 효과 (Effects of Toothbrush Education on the Simplified Oral Hygiene Index (S-OHI) and Toothbrushing-related Knowledge)

  • 염종화;고효진;이수진;김혜진
    • 보건의료산업학회지
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    • 제8권2호
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    • pp.187-195
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    • 2014
  • To improve oral hygiene management, the effects of toothbrush training on general oral hygiene based on the simplified oral hygiene index(S-OHI) and degree of knowledge about toothbrushing were examined. Pre-and post-training changes in the S-OHI (lower score = better oral health status) showed a significant decrease in score in all variables (gender, age, marital status, occupation, and level of education).Pre- and post-training changes in the degree of knowledge about toothbrushing showed a significant increase. Negative correlations between the S-OHI, oral health status, and degree of knowledge about toothbrushing and the S-OHI and the Decayed, Missing, Filled (DMF) index (the better the oral cavity environment, the lower the DMF index) were observed. Positive effects of repeated toothbrush training on the maintenance of healthy oral cavity environment and continuous oral health management were observed, as reflected by the correct toothbrushing-related knowledge and skills.

다양한 위해성평가 방법에 따라 도출한 토양오염 판정기준의 차이에 관한 연구(III): 우리나라 납 오염 위해성평가 방법 제안 (Analysis on the Risk-Based Screening Levels Determined by Various Risk Assessment Tools (III): Proposed Methodology for Lead Risk Assessment in Korea)

  • 정재웅;남경필
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제20권6호
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    • pp.1-7
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    • 2015
  • The most critical health effect of lead exposure is the neurodevelopmental effect to children caused by the increased blood lead level. Therefore, the endpoint of the risk assessment for lead-contaminated sites should be set at the blood lead level of children. In foreign countries, the risk assessment for lead-contaminated sites is conducted by estimating the increased blood lead level of children via oral intake and/or inhalation (United States Environmental Protection Agency, USEPA), or by comparing the estimated oral dose to the threshold oral dose of lead, which is derived from the permissible blood lead level of children (Dutch National Institute for Public Health and the Environment, RIVM). For the risk assessment, USEPA employs Integrated-Exposure-Uptake-Biokinetic (IEUBK) Model to check whether the estimated portion of children whose blood lead level exceeds 10 µg/dL, threshold blood lead level determined by USEPA, is higher than 5%, while Dutch RIVM compares the estimated oral dose of lead to the threshold oral dose (2.8 µg/kg-day), which is derived from the permissible blood lead level of children. In Korea, like The Netherlands, risk assessment for lead-contaminated sites is conducted by comparing the estimated oral dose to the threshold oral dose; however, because the threshold oral dose listed in Korean risk assessment guidance is an unidentified value, it is recommended to revise the existing threshold oral dose described in Korean risk assessment guidance. And, if significant lead exposure via inhalation is suspected, it is useful to employ IEUBK Model to derive the risk posed via multimedia exposure (i.e., both oral ingestion and inhalation).

구강관리용품의 사용에 따른 흡연자의 구강 환경 변화 (Analysis of Changes in Oral Care Index of Smokers Using Oral Care Products)

  • 남설희;김수빈;성다솔;이은정;정다애;최진향;성정민
    • 한국콘텐츠학회논문지
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    • 제18권2호
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    • pp.361-369
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    • 2018
  • 본 연구는 흡연자의 구강 내 환경을 관찰하여 흡연자의 구강관리용품 사용에 대한 중요성과 구강 환경 개선을 위해 지속적이고 체계적인 구강관리용품 사용의 필요성을 확인하기 위해 강원도 지역의 대학생들을 대상으로 흡연자군 12명, 비흡연자군 12명에게 설문조사 및 실험조사를 실시하였다. 조사결과 두 집단 모두 구강관리용품 사용율은 75%로 나타났으며, 그 중 치실 70.7%으로 구강관리용품 중 치실을 가장 많이 사용하는 것으로 나타났다. 비흡연자군보다 흡연자군이 구강관리용품 사용 후 PHP Index, Streptococcus.mutans 수, snyder 활성도가 감소한 것으로 나타났고, 비흡연자군보다 흡연자군이 구강관리용품 사용 후 pH가 증가한 것으로 나타났다. 본 연구조사 결과 구강관리용품의 사용이 전반적으로 흡연자의 구강건강을 증진시키고 구강 환경을 개선할 수 있다고 나타났다. 구강관리용품에 대한 교육을 실시하면 흡연자들의 동기부여에 도움이 될 것으로 사료된다.

Acute and Sub-chronic Oral Toxicity Study of Ammonium Persulfate in Spraque-Dawley Rats

  • Kim, Yong-Soon;Baek, Min-Won;Sung, Jae-Hyuck;Ryu, Hyun-Youl;Kim, Jin-Sik;Cho, Hyun-Sun;Choi, Byung-Gil;Song, Min-Sub;Song, Moon-Yong;Baik, Eun-Ju;Choi, Young-Kuk;Kim, Jong-Kyu;Yu, Il-Je;Song, Kyung-Seuk
    • Toxicological Research
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    • 제25권3호
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    • pp.132-139
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    • 2009
  • The toxicity test of ammonium persulfate was conducted to ensure of its potential toxic effects according to the single-dose acute oral toxicity study (OECD Guideline 423) and 90-day repeated dose sub-chronic oral toxicity study guideline (OECD Guideline 408) for establishing national chemical management system, and matching in the Globally Harmonized Classification System (GHS) category. In acute oral toxicity study, pasty stool, perineal contamination and temporary body weight decrease were observed after dosing 1st and 2nd challenge (300 mg/kg body weight). All test animals were dead within 6 hours after dosing at 3rd challenge (2000 mg/kg body weight). Therefore, the GHS class of test substance is considered class 4. In sub-chronic toxicity study, body weight changes, food consumptions, hematological, biochemical and pathological examination did not show any noticeable and significant differences between the administered (5, 20, 80 mg/kg body weight) and control (vehicle only) group animals. Based on these results, the no observed adverse effect level (NOAEL) is considered above 80 mg/kg body weight.

Oral and Human Microbiome Research

  • Chung, Sung-Kyun
    • 치위생과학회지
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    • 제19권2호
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    • pp.77-85
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    • 2019
  • In the past gut microbiome has been the main focus of microbiome research. Studies about the microbiome inside oral cavities and other organs are underway. Studies about the relationship between noninfectious diseases and periodontal diseases, and the negative effects of harmful oral microbes on systemic health have been published in the recent past. A lot of attention is being paid towards fostering a healthy oral microbial ecosystem. This study aimed to understand the roles and effects of the microbiome inside the human body can potentially help cure various diseases including inflammatory bowel diseases with no known cure such as Crohn's disease, atopic dermatitis, obesity, cancer, diabetes, brain diseases and oral diseases. The present study examined technological trends in the correlation between the human microbiome and diseases in the human body, interactions between the human body's immunity, the metabolic system, and the microbiome, and research trends in other countries. While it has been proven that human microbiome is closely correlated with human diseases, most studies are still in the early stage of trying to compare the composition of microbiomes between health and patient groups. Since the oral environment is a dynamic environment that changes due to not only food intake but also other external factors such as lifestyle, hygiene, and drug intake, it is necessary to continue in-depth research on the microbiome composition characteristics to understand the complex functions of oral microorganisms. Analyzing the oral microbiome using computational technology may aid in disease diagnosis and prevention.