• Title/Summary/Keyword: 치면 세균막

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Relationship of Oral Health Management Behavior to Plaque Index Systems (구강건강관리행위에 따른 치면세균막지수와의 관련성)

  • Lim, Soon-Hwan;Hwang, Ji-Min
    • Journal of dental hygiene science
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    • v.15 no.2
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    • pp.159-165
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    • 2015
  • A self-administered survey was conducted on the dental hygiene students at three different colleges located in Gyeonggi Province and South Chungcheong Province respectively from October, 2013, to the same month of 2014 to grasp their oral health management behavior, differences in plaque index according to plaque index systems and the correlation of the two. And their plaque index was measured. The findings of the study were as follows: 62.8% of the respondents replied they got a dental checkup over the past year, and 84.1% answered they received preventive dental treatment once at least or more. 80.5% replied they used a fluorine-containing dentifrice. 90.9% answered they used the rolling method to brush their teeth, and 50.0% replied it took three minutes to brush their teeth. They got a mean of 27.88 when O'leary index was used among plaque index systems. Their PHP index and PHP-M index were respectively a mean of 1.30 and a mean of 12.12. Their plaque index became lower when they spent more time brushing their teeth, and the toothbrushing time made a statistically significant difference to that (p<0.05). The factor that exerted the largest influence on plaque index was whether to brush teeth for the sake of oral health (B=-9.747, t=-3.752, p<0.001) or not. That made a statistically significant difference to it. The above-mentioned findings illustrated that more patients visited dental clinics than before to receive preventive dental treatment or to get dental checkups, and that toothbrushing time and whether to brush teeth for the sake of oral health or not were identified as the oral health management behaviors to affect plaque index.

Factors Related to Patients' Satisfaction Level of Treatment Outcome of Oral Malodor (구취치료 후 만족도에 영향을 미치는 예견인자)

  • Lee, Jeong-Yun;Kho, Hong-Seop;Kim, Young-Ku;Chung, Sung-Chang;Lee, Sung-Woo
    • Journal of Oral Medicine and Pain
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    • v.26 no.1
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    • pp.27-38
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    • 2001
  • 본 연구에서는 환자들에 의해 구취와 관련이 있다고 일반적으로 믿어지고 있는 여러 요인들이 치료 후의 환자의 만족도에 미치는 영향에 대해 알아봄으로써 환자의 만족도의 예후를 판단할 수 있는 자료를 마련하고자 하였다. 서울대학교 치과병원 구강진단과에 구취를 주소로 내원한 환자 194명을 대상으로 설문지를 이용하여 구취와 관련성이 있는 것으로 알려져 있는 항목들을 조사하였다. 조사 항목으로는 1) 본인확인가능여부, 2) 타인확인가능 여부, 3) 구취의 기간, 4) 구취의 빈도, 5) 축농증, 6) 비염, 7) 코수술 병력, 8) 콧물이 목뒤로 넘어감, 9) 코막힘, 10) 비호흡 곤란, 11) 구강건조감, 12) 편도선부종, 13) 가래, 14) 신물의 역류, 15) 소화불량, 16) 흡연여부가 포함되었다. 구취의 평가는 portable sulfide monitor인 $Halimeter^{(R)}$(Interscan Co., Chatsworth, CA, USA)를 이용하여 치료 전, 후에 각각 측정하였고, 혀배면의 세정, 치면 세균막 조절, 0.25% $ZnCl_2$ 양치액의 사용을 내용으로 하는 구취의 치료를 시행한 뒤 자신의 구취개선정도에 대해 %로 질문하여 치료 후 만족도를 조사하였다. 각 조사 항목과 치료 후 만족도 사이의 상관관계 및 실제 $Halimeter^{(R)}$ 수치의 개선정도와 만족도 사이의 상관관계를 분석하였으며, Symptom Checklist - 90 Revised(SCL-90R)의 분석결과에 따라 환자를 두 그룹으로 분류하고 두 그룹 사이의 치료 후 만족도의 차이를 조사한 결과 다음과 같은 결론을 얻었다. 1. 본인 및 타인 확인가능여부, 구취가 항상 나는지 여부, 구취의 기간, 축농증, 비염, 코수술 병력, 코막힘, 비호흡 곤란, 콧물이 목뒤로 넘어감, 흡연여부에 따른 치료 후 만족도의 유의한 차이는 없었다. 2. 신물의 역류(p=0.003), 소화불량(p=0.007), 구강건조감(p=0.016), 편도선 부종(p=0.018), 가래(p=0.033)에 따른 치료 후 만족도는 통계적으로 유의한 수준의 차이를 보였다. 3. $Halimeter^{(R)}$ 수치의 개선정도와 만족도 사이의 유의한 상관관계는 관찰되지 않았다(r=0.092, p=0.201).

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Antioxidant and Antibacterial Activities of Extracts from Different Parts of Sophora japonica L. (회화나무 부위별 추출물의 항산화 및 항균활성)

  • Park, Min Jeong;Kim, Hye Soo;Kim, Han Bi;Lee, Sang Gyun;Cho, Soo Jeong
    • Journal of Life Science
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    • v.32 no.10
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    • pp.792-802
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    • 2022
  • In this study, the antioxidant and antibacterial activities of Sophora japonica extracts were investigated to determine the potential of S. japonica as a functional food and medicinal materials. S. japonica was divided into flowers, fruits, and branches, and ethanol extraction was used. The total polyphenol and flavonoid contents were significantly higher in the flower and fruit extracts than in the branch extracts, but the ABTS and DPPH radical scavenging activity and ORAC value were higher in the branch extracts. Among the ethanol extracts of S. japonica, branch extracts showed strong antibacterial activity against Porphyromonas gingivalis, and the MIC was 0.2 mg/ml. Branch extracts showed bacteriostatic activity against P. gingivalis at a concentration of 0.4 mg/ml or less and bactericidal activity at a concentration of 0.6 mg/ml or more. Biofilm biomass production and cell growth of P. gingivalis in the culture medium treated with the branch extract at a concentration of 0.2-2.0 mg/ml were significantly decreased in a concentration-dependent manner. In addition, the mRNA expression of fimA and mfa1 associated with fimbriae formation in these cultures was suppressed in a concentration-dependent manner. Based on these results, S. japonica branch extracts can be used as functional food and medicinal materials, as demonstrated by their antioxidant and antibacterial activities against P. gingivalis and the inhibition of biofilm formation resulting from P. gingivalis.

Antibacterial and Antibiofilm Activities of Leaf Extracts of Stewartia koreana against Porphyromonas gingivalis (Porphyromonas gingivalis에 대한 노각나무 잎 추출물의 항균활성 및 생물막 형성 억제 효과)

  • Kim, Hye Soo;Park, Min Jeong;Kim, Soo Jeong;Kim, Bu Kyung;Park, JunHo;Kim, DaeHyun;Cho, Soo Jeong
    • 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.

Factors Affecting Experience of Decayed and Decalcified Teeth of Infants Aged 18-24 Months (18-24개월 시기에 경험하는 우식치와 탈회치에 영향을 미치는 요인)

  • Lim, Soon Ryun;Woo, Hee-Sun
    • Journal of dental hygiene science
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    • v.11 no.3
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    • pp.205-211
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    • 2011
  • The present study seeks to find the effect of oral health status that parents recognized, oral health habit and food intake on existence of decalcified teeth and decayed teeth. Participants were 293 infants aged 18-24 months who visited C dental clinic in Kyungki province between January and December 2010. Questionnaires and oral exam results were used and statistically analyzed by the SPSS program. Fisher's Exact and chi-square test were used to analyze the data. The 18-20 month-old age group had the highest rate of decalcified teeth with 36.4% while the 23-24 month-old age group had the highest rate of decayed teeth with 37.0%. Bottle feeding showed correlation with decalcified teeth, and decayed teeth. Parents were able to recognize decayed teeth and decalcified teeth. Group 2 food(soda/soft drinks/sugared fruit juice) was related to decalcified teeth and decayed teeth(p<.001). Group 4 food (cake/cookies/doughnut/dried fruit/banana) and group 5food(caramel/candy/chocolate bar) were both related to decalcified teeth(p<.001). As the result of dental examination, dental treatment was highly needed for the 21-22 month-old age group(89.3%), and preventive treatment and plaque control were highly needed for the 18-20 month-old age group(94.5%). The results concluded that 18-24 months was the critical period for children's oral health, therefore organized oral health education for parents is necessary.

Comparison of biofilm on titanium and zirconia surfaces: in vivo study (생체 내 티타늄과 지르코니아 표면에서 형성시킨 치면세균막의 비교)

  • Lim, Kyu-Taek;Lee, Ji-Hyun;Lim, Il-Gu;Park, So-Hyun;Lim, Hyun-Phil;Kim, Ok-Su
    • The Journal of Korean Academy of Prosthodontics
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    • v.51 no.4
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    • pp.245-251
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    • 2013
  • Purpose: This study was conducted to compare in vivo biofilm formation on titanium surface and zirconia surface. Materials and methods: For biofilm formation on titanium and zirconia in oral cavity, after producing oral appliances using acrylic resin and orthodontic wire tailored to 9 subjects, we made titanium and zirconia specimens ($6mm{\times}6mm{\times}2mm$), fixed them on oral appliances and maintained them in oral cavity of test subjects for 24 and 72 hours. Test subjects who have equipped two pairs of specimens maintained oral hygiene not by using toothpaste but only by tooth brushing. After 24 and 72 hours, we removed and observed specimens through scanning electron microscopy (SEM). Results: Biofilm formation showed large deviation depending on individuals. For formation comparison between titanium and zirconia for 24 hours, zirconia showed less biofilm formation than titanium. Biofilm formation showed large deviation depending on individuals. As for formation comparison between zirconia and titanium, the degree of biofilm formation in zirconia was less than it was in titanium after a lapse of 24 hours. The result of biofilm formation in 72 hours trial show that zirconia has an inclination to formate less biofilm than it was in titanium. Conclusion: Based on the above results, we can conclude that early biofilm formation in oral cavity was influenced by difference of abutment materials.

The Effect in Oral Health Promotion Program Based on Community Networking for Elementary School Students from Community Child Center (지역사회 협의체 중심의 지역아동센터 구강건강증진 프로그램의 효과)

  • Yum, Jong Hwa;Kim, Hye-Jin;Kwon, Myoung-Hwa;Shin, Sun-Jung
    • Journal of dental hygiene science
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    • v.14 no.2
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    • pp.214-222
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    • 2014
  • This study measures the effect of oral health promotion program based on community networking for elementary school students in community child center. The community networking were constructed of community health center, headquarters for community child center and school of dental hygiene in community. First, we were educated the student and teacher of community child center, separately. Community health center planned and evaluated the program, and school of dental hygiene ran the maintenance program once a month for 3 months and evaluated the program. The teacher of community health center were supported and monitored the children. The comparison was done in independent t-test of awareness, knowledge and behavior of children of community child center in both lower grades and upper grades and paired t-test of patient hygiene performance (PHP) index was conducted before and after oral health promotion program. As a result, PHP index and oral health knowledge increased significantly after oral health program in lower grades and upper grades (p<0.001). The positive attitude for oral health about "Whatever I do, my tooth-will be decayed" increased more in upper grades better than lower grades after oral health promotion program (p<0.05). We suggest that oral health program based on community networking should be constructed for oral health promotion of elementary school students in community child center.

A study on the comprehensive oral prophylaxis care at G university (포괄적치면세마처치 사례연구)

  • Lee, Eun-Sook;Park, Jeong-Ran;Choi, Mi-Sook
    • Journal of Korean society of Dental Hygiene
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    • v.9 no.2
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    • pp.165-178
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    • 2009
  • The purpose of this study was to provide basic information for improving oral health and dental hygiene through comprehensive dental hygiene care. The subjects in this study were 54 patients who had been treated for 4 weeks in clinic of the Dental Hygiene Department of G University under comprehensive dental hygiene control and care and measured their oral condition, intensity of oral malodor, Simplified Oral Hygiene Index (S-OHI), and Modified Personal Hygiene Performance Index (PHP-M), and surveyed their oral health behavior and oral health consciousness. The results of the study were as follows: 1. The intensity of malodor decreased by 16.49ppb from 75.33ppb on the first visit to 50.84ppb on the last visit when the comprehensive dental hygiene care had been finished. 2. As to change in S-OHI according to gender between the first visit and the last visit for comprehensive dental hygiene care, S-OHI decreased from 2.89 on the first visit to 1.16 on the last visit, and the difference was statistically highly significant. 3. As to change in PHP-M index by tooth according to gender and age between the first visit and the last visit, PHP-M index of the first 6 teeth decreased very significantly from 0.50 on the first visit to 0.34 on the last visit. 4. As a whole, significant improvement was observed in every tooth. According to gender and age, PHP-M index for Tooth No. 26, 36 and 32 decreased significantly in men and women, and those aged under 30 and those aged 30 or over, but for Tooth No. 13 and 15 and 44 it decreased significantly only in men and those aged 30 or over, and for Tooth No. 44 only in men. As presented above, the oral health behavior and oral health consciousness of the visitors to the oral prophylaxis practice room are very important, and it is necessary to enhance their interest in and knowledge of how to improve oral health. Furthermore, comprehensive dental hygiene care required for improving the visitors' oral health.

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Effects of dye-guidance brushing etching technique on the performance of pits and fissures sealant (Dye-guidance와 brushing을 통한 산부식 방법이 치면열구전색술의 수복의 질에 미치는 영향)

  • Hung, Phan Ai;Lee, Nan-Young;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.34 no.1
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    • pp.106-121
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    • 2007
  • The purpose of this study was to examine the effects of suggested etching method on the performance of pits and fissures sealant. In the first part, seventy extracted sound human permanent third molars and premolars were used. The teeth were randomly divided and performed in three different groups as follows : conventional etching, enameloplasty, and testing group. Non-pumicing, dye-guidance vigorous brushing-start etching technique was applied on the occlusal of testing group. Then the pit and fissure sealant was applied on all of the specimens. After the thermocycling and immersing in 1% methylene blue, the resin embedded sections were made. The microleakage data on the section were then recorded under the stereoscope and statistic analysis was done. Additional experiments were also performed : direct fissure surface etched pattern experiment, replica study, and micro-shear bond strength testing observation. The second part included two groups. A paired study was designed to evaluate the influence the environment has on the performance of the sealant. After etching, half of each occlusal surface received one of the two following treatments in succession: sealing in laboratory and intraoral condition (group 1), sealing in intraoral condition with and without a single-bonding agent (group 2). The results of present study can be summarized as follows: - The microleakage of testing group was significant different with conventional method (P<.05) and was not different with the enameloplasty group (P>.05). - The quality and quantity of etched enamel were improved. - Microshear bond strength of testing group was higher than control group (p<.05). - The environmental condition was influenced on the performance of the sealant. The testing etching method modified the capacity of the etching agent to penetrate into the pits and fissures, and simultaneous enhance their efficiency in vitro condition.

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A CONTROL OF PLAQUE, GINGIVITIS AND ANTI-CARIES EFFECT OF DENTIFRICE CONTAINING HORSERADISH EXTRACTS (서양산 고추냉이 추출물이 함유된 세치제의 효능에 대한 임상적 실험연구)

  • Seo, Hyun-Woo;Park, Ho-Won;Kim, Jong-Soo;Lee, Si-Young;Shin, Il-Shik
    • Journal of the korean academy of Pediatric Dentistry
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    • v.39 no.1
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    • pp.26-33
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    • 2012
  • The purpose of this study was to find out the effect of dentifrice containing Horseradish (Armoracia rustica) root extracts on improvement of oral hygiene. The clinical evaluation was done participated by 80 adults volunteers who provided a informed consent for their participation. The participants were divided into two groups ; control group (using toothpaste without Horseradish extracts) and experimental group (using toothpaste containing Horseradish extracts). The checklist of the experiment includes the plaque index, gingival index and anti-caries activity. The anti-caries activity was measured by cultivating Streptococcus mutans for 48 hours then estimating the number of increased bacteria using Dentocult SM. The double-blind method was used in this study. The results of this study can be summarized as follows; 1. The plaque formation decreased 28% in control group, 58% in experimental group using dentifrice with Horseradish extracts compared to baseline data. 2. For gingival index, control group and experimental group showed 26% and 40% decrease compared to baseline data, respectively. 3. The score of caries activity test decreased by 4% for control group and 69% for experimental group compared to baseline data. According to the results, a dentifrice containing Horseradish extracts can improve oral hygiene.