생육환경 분석을 통한 천연기념물 노거수의 관리방안 II -서울·인천·경기지역을 중심으로-

강현경,이승제,Kang, Hyun-Kyung,Lee, Seung-Je 한국환경복원기술학회 2004 한국환경복원기술학회지 Vol.7 No.2

This study was conducted to formulate management guidelines for monumental old trees in Korea through analysis of growing environments. A total of 20 old trees designated as natural monuments in Seoul, Incheon, and Gyeonggi provinces were surveyed for biological characteristics, surrounding environments, root collar conditions, tree health, and soil characteristics. Relationships among root collar conditions, tree health, and soil characteristics were analyzed by correlation. The old solitary trees designated as natural monuments included Pinus bungeana(4 trees), Juniperus chinensis(3 trees), Ginkgo biloba(3 trees), Poncirus trifoliata(2 trees), Actinidia arguta, Wisteria floribunda, Thuja orientalis, Quercus variabilis, Sophora japonica, Fraxinus rhynchophylla, Zelkova serrata, and Pinus densiflora. The tree height ranged from 3.56 to 67m, and root collar diameter ranged from 1.01 to 15.2m. The monumental old trees were growing on the various sites ranging from gardens, historical sites, open agricultural fields, mountain hills, to near the ocean beaches and streams. The coverage of bald land ranged from 50 to 100%, and depth of filled soil around the root collar ranged from 0 to 50cm. Tree health was expressed as the amount of branch dieback, cavity development, detachment of cambial tissue, infliction by diseases and insects. The branch dieback ranged from 5 to 20%, cavity development ranged from 10 to 100$cm^3$, detachment of cambial tissue ranged from 5 to 45%, and infliction by diseases and insects ranged from 5 to 20%. Soil pH ranged from 5.9 to 8.3, organic matter contents from 12 to 56%, phosphorus contents from 104 to 618ppm, while soil compaction ranged from 7 to 28mm. Results of correlation analysis showed that coverage of bald land was the most serious factor to deteriorate the cavity development and detachment of cambial tissue. In addition, chemical properties of soils seemed to be related to the health of the trees.

당진화력발전소 녹지공간의 식재현황 및 생태적 특성 분석

강현경,이수동,한봉호,Kang Hyun-Kyung,Lee Soo-Dong,Han Bong-Ho 한국조경학회 2006 韓國造景學會誌 Vol.33 No.6

This study was conducted to analyze the planting structure and ecological characteristics of greon spaces on the grounds of e Dangjin steam power plant. To achieve these goals, we surveyed existing vegetation, plant community structure, Plant volume and growth rate. Based on e vegetation analysis, existing vegetation was classified into six types: herbaceous species $(70.54\%)$, evergreen coniferous trees $(21.17\%)$, deciduous broad-leaved trees $(5.10\%)$, deciduous coniferous trees $(1.47\%)$, shrubs $(0.12\%)$, and other types $(1.59\%)$. The coal storage, office, and playground areas were community is the natural forest area where a Pinus thunbergii / Pinus densiflora community is distributed in terms of vegetation structure, species diversity, plant volume, and growth rate. The artificial green spaces(near the coal storage, office, playground areas) had a single-layer structure. Species diversity indices of the artificial green areas were $0.1655\~0.4807$ compared to 0.8628 in the natural forest, which presented a good growth environment. Also, the plant volume in the artificial green space was lower than that of the natural green space. Therefore, it would be desirable to develope a multi-layer structure similar to that of the vegetation in the natural green space in order to improve the amount of plant volume. The plant-damage ratio of Pinus thunbergii was $52.48\%$ in the coal storage area, and $8.48\~ 11.52\%$, in the other survey areas. Also, the vitality of Pinus thunbergii was $15.45k{\Omega}$ in the coal storage areas, which indicates bad growing conditions. This suggests that soil characteristics and dust have a bad impact on growth. The investigation into deciduous tres' growth status showed that appropriate plants would be Albizzia julibrissin, Acer palmatum var. sanguineum, Acer palmatum, Malus spp., Prunus sargentii.

치과위생사와 환자의 치석제거에 대한 인식과 구강보건교육에 대한 융합적 차이 분석

강현경,성미경,김유린,Kang, Hyun-Kyung,Seong, Mi-Gyung,Kim, Yu-Rin 한국융합학회 2020 한국융합학회논문지 Vol.11 No.9

This study was conducted to narrow the view on this by analyzing the difference between dental hygienists and patients' cognition and oral health education of scaling. The study was total 202 people were finally analyzed. The method of analysis compared the cognition of scaling and oral health education, and a hierarchical regression analysis was conducted to check the effect of cognition and oral health education on dental selection by stages. As a result, there were significant differences in all but one of the nine items of cognition for scaling (p<0.01) and significant differences appeared in all but seven of the 19 categories of oral health education for scaling (p<0.01). Therefore, dental hygienists will have to seek ways to reduce these differences and continue to study how to explain them in scaling so that they can have a positive impact on patients' dental clinic choices. 본 연구는 치과위생사와 환자의 치석제거에 대한 인식과 구강보건교육의 차이를 분석하여 이에 대한 견해를 좁히기 위해 실시되었다. 본 연구에는 총 202명을 대상으로 최종 분석하였다. 분석방법으로 치석제거에 대한 인식과 구강보건교육을 비교하였고, 치석제거 인식과 구강보건교육이 치석제거로 인한 치과선택에 미치는 영향을 단계별로 확인하기 위해 다중회귀분석을 시행하였다. 그 결과 치석제거에 대한 인식 9개 항목 중 1개의 항목을 제외한 모든 항목에서 유의한 차이가 나타났고(p<0.01), 치석제거에 대한 구강보건교육 19개의 항목 중 7개의 항목을 제외하고 모든 항목에서 유의한 차이가 나타났다(p<0.01). 따라서 치과위생사는 이러한 차이점을 줄일 수 있는 방안을 모색해야 할 것이며, 환자의 치과선택에 긍정적인 영향을 줄 수 있도록 치석제거 시 설명하는 방법에 대한 지속적인 연구를 해야 할 것이다.

일부 제조업 근로자들의 구강건강실천과 치아우식 위험도의 관련성에대한 융합적 평가 -CRT^® bacteria를 이용하여

강현경,허성은,Kang, Hyun-Kyung,Heo, Seong-Eun 한국융합학회 2015 한국융합학회논문지 Vol.6 No.6

본 연구는 제조업근로자의 근무특성 및 구강건강실천정도를 조사하여 치아 우식증 위험도에 미치는 요인을 파악하고 근로자들의 구강건강 증진을 위한 프로그램 개발에 필요한 기초자료를 제공하고자 한다. 연구방법은 2014년 7월1일부터~8월1일까지 부산 경남지역 일부 제조업 근로자를 대상으로 자기기입식 설문조사 및 타액 내 미생물에 의한 치아우식발생요인검사(S.mutans검사, Lactobacillus검사)를 실시하여 다음과 같은 결과을 얻었다. 하루 평균 근무시간 10시간 이상이 10시간미만일 경우보다 치아우식위험도가 높았고, 흡연자의 경우 비흡연자보다 치아우식위험도가 높았으며, 잇솔질 습관이 1점 증가함에 따라 치아 우식증 발생 고위험군일 확률이 S.mutans검사에서 0.044배 낮고, Lactobacillus검사에서 0.004배 낮았다. 따라서 제조업근로자들의 근무환경 개선을 위한 제도적인 노력과 지속적인 구강보건교육 및 실천이 이루어질 수 있는 사업장 구강보건교육을 위한 조직적인 노력이 필요할 것으로 판단된다. In this study, the characteristics and oral health status of manufacturing workers were investigated to confirm the factors affecting their risk of developing dental caries and to prepare basic data for developing oral health promotion programs for such workers. A self-administered questionnaire survey and saliva microorganism examinations (S. mutans and Lactobacillus tests) were conducted from July 1 to August 1, 2014 targeting the manufacturing workers in the Busan and Gyungnam areas, to confirm the factors affecting dental caries development among manufacturing workers. As a result, the risk of dental caries was found to be higher in the workers who worked for 10 hours or longer a day than in those who worked for less than 10 hours a day, and in the smokers than in the non-smokers. A 1-point increase in the brushing pattern score resulted in 0.044 times less risk of dental caries development in the S. mutans test and 0.004 times less risk in the Lactobacillus test Therefore, systematic support is needed to improve the work environment of manufacturing workers, along with continuous oral health education in workplaces.

논에 서식하는 수서 대형무척추동물의 채집기 비교: 채집망과 방형구 및 core

강현경,정근,Kang, Hyun-Kyung,Chung, Keun 한국응용곤충학회 2010 한국응용곤충학회지 Vol.49 No.4

논의 생물다양성에 관한 관심이 증가하면서 논 먹이망의 중요한 부분을 차지하고 있는 수서성 대형무척추동물을 정량적으로 평가하기 위한 효율적인 방법이 요구된다. 이를 위해, 강원도 춘천시와 충청남도 홍성군에 위치한 논에서 채집망과 방형구, 피이프형 채집기(core)로 얻어진 자료를 비교하여 적절한 채집기를 알아보았다. 채집망은 틀이 사각형이고, 바닥이 평평하기 때문에, 채집망의 조사 면적은 토양을 훑은 길이와 망의 넓이를 곱하여 측정되었다. 모든 채집물은 두 벼줄 사이에서 채집되었다. 대형무척추동물은 춘천과 홍성에서 24, 28분류군이 채집되었다. 춘천에서 분류군수는 세 가지 채집기에서 유사했지만(17-18분류군), 추정밀도는 그렇지 않았다(채집망, $1317/m^2$; 방형구, $1368/m^2$ core, $1810/m^2$). 홍성에서는 채집망에서 분류군 수가 가장 컸었지만(채집망 25분류군; 방형구, 21분류군 core, 16분류군), 추정밀도는 core에서 가장 높았다(채집망, $1586/m^2$; 방형구; $2595/m^2$; core $3704/m^2$). 각 채집기의 효율은 분류군에 따라 달랐는데, 채집망에는 주로 수서곤충류가 많았던 것에 비해 방형구에는 빈모류나 깔따구과 등 토양 속에 서식하는 종류에 대한 효율이 높았다. 논에 서식하는 수서곤충에 대한 정량자료와 희귀분류군에 대한 정성자료를 통시에 얻고자 하는 경우에는 채집망을 이용하여 논 가장자리와 논 내부에서 각 6회 정량채집하고, 논둑 근처와 논 가운데에서 정성채집을 수행되는 것이 시간 및 노동력 측면에서 가장 경제적 이라고 생각된다. With growing interest in biodiversity in rice paddies, efficient sampling methods for quantitative evaluation of aquatic macroinvertebrates are needed because of their important role in rice paddies' food webs. For this reason, we sought a proper sampling method through comparing data collected by using aquatic net, quadrat, and core in rice paddies located in Chuncheon-si, Kangwon-do, Hongseong-gun, and Chungcheongnam-do. Because the frame of the net was rectangular and had a flat bottom, the area, sampledwith the aquatic net, was calculated by multiplying the net width by the sweeping length, All samples were taken from the space between the rows of rice plants. Twenty four taxa of macro invertebrates were collected in Chuncheon and 28 taxa in Hongseong. In Chuncheon, the number of taxa was similar among three sampling methods (17-18 taxa), but the number of individuals was different (aquatic net, $1,317/m^2$; quadrat, $1,368/m^2$; core, $1,810/m^2$. In Hongseong, the number of taxa sampled by aquatic net was the highest (aquatic net, 25 taxa; quadrat, 21 taxa; core, 16 taxa), but the core was the highest in the number of individuals (aquatic net, $1,586/m^2$; quadrat, $2,595/m^2$; core, $3,704/m^2$. The efficiency of samplers differed among taxa. Most of aquatic insect taxa were more abundant in the aquatic net, while those living on or in the paddy substratum such as Oligochaeta and Chironomidae were collected more in the quadrat sampler. To collect quantitative data for aquatic insects as well as to produce inventory of rare taxa, we suggest, based on samplers used in this study, to take quantitative samples of 6 replications from each of the edge and inner zones of a rice paddy by using an aquatic net, and to take qualitative samples both from sides of levees and the inner zone of rice paddy by using an aquatic net.

중년여성의 이미지메이킹이 외모관리행동에 미치는 영향: 신체매력지각의 매개효과를 중심으로

강현경 ( Hyeon-kyeong Kang ),조혜경 ( Hye-kyung Cho ) 한국미용예술경영학회 2022 미용예술경영연구 Vol.16 No.2

본 연구는 중년여성의 이미지메이킹과 외모관리행동과의 관계를 알아보고 신체매력지각의 매개효과를 검증하였다. 조사대상은 40~60대 중년여성이며, 조사 기간은 2021년 12월 10일부터 12월 30일까지 유의적 표집 방법을 통해 422명의 데이터가 최종분석에 사용되었다. 분석결과 중년여성의 이미지메이킹이 뷰티관리행동과의 영향관계에서는 피부관리행동에서 외적 이미지와 사회적 이미지 2개의 요인에서 영향 관계가 있고, 헤어관리행동과 네일관리행동에서는 외적이미지 1개의 요인에서만 영향 관계가 나타났다. 신체매력지각이 외모관리행동에 미치는 영향관계에서는 헤어관리행동과 네일관리행동에 영향관계가 있는 것으로 나타났다. 신체매력지각 매개효과를 알아본 결과 이미지메이킹의 외적이미지와 헤어관리행동, 네일관리행동에서 매개효과가 나타났다. 본 연구를 통해 외모에 대한 사회관심이 증가하면서 중년여성들은 시간과 노력을 투자하여 외모관리행동에 적극적이며, 이미지메이킹을 신경쓸수록 피부관리행동에 관심을 갖고 있음이 확인되었다. 또한, 신체매력지각에 신경쓰는 중년여성은 헤어관리 행동과 네일관리 행동의 뷰티관리행동을 한다는 것을 확인하였다. This study investigated the relationship between image making and appearance management behavior of middle-aged women and verified the mediating effect of body attractiveness perception. The subjects of the survey are middle-aged women in their 40s and 60s, and the data of 422 people was used for the final analysis through a significant sampling method from December 10 to December 30, 2021. As a result of the analysis, in the relationship between middle-aged women’s image making on beauty management behaviors, there was an influence relationship by two factors, external image and social image in skin care behavior, and only one factor in external image in hair care behavior and nail management behavior. relationship appeared. As a result of examining the mediating effect of body attractiveness perception, the mediating effect was found in the external image of image making, hair care behavior, and nail care behavior. Through this study, it was confirmed that as social interest in appearance increased, middle-aged women were more active in appearance management behaviors by investing time and effort, and the more they paid attention to image making, the more they were interested in skin care behaviors. In addition, it was confirmed that middle-aged women who were concerned about the perception of body attractiveness had beauty management behaviors of hair care behavior and nail care behavior.

劉向 ≪列女傳≫ 중의 규범과 서사적 표현방식

姜賢敬(Kang, Hyunkyung) 동아인문학회 2021 동아인문학 Vol.56 No.-

西漢시대 劉向이 편찬한 ≪열녀전≫에는 ‘여성 언행의 포폄’이라는 표면적인 전달 내용과 그 이면에 숨겨진 ‘군주에게 전하는 간언’의 내용이 이중적으로 담겨 있다. 漢나라 왕권의 기강을 염려하였던 유향이 勸諫 의도에서 ≪열녀전≫을 편찬하였다는 관점에서 볼 때, 여성 행적에 대한 칭송과 비난의 관점에서 단순하게 평가하고 이해하기보다는, 오히려 작자의 의도를 포장하기 위하여 동원된 표현수법을 다각도로 검토하여 일화의 심층적 의미를 확인해야 할 것이다. 본 연구에서는 ≪열녀전≫이 평면적인 관념적 문자 해석에서 벗어나, 설득력과 이해도를 높이는 서사적 기법으로 표현되었음을 살펴보고자 하였다. 수록된 대부분의 일화는 주인공이 진술한 “吾聞……”의 논변으로써 상대방을 설득시키고 발생한 상황을 종결하는 기법으로 서사화 되었다. 때로는 일상생활 중에 널리 알려진 규범일지라도, 규범 실천의 중요성을 재인식할 수 있는 적절한 상황 설정, 상황과 관련된 주인공의 진술, 그에 따른 상황의 결과 등이 현실감 있는 서사적 장면으로 표현되기도 하였다. 어떤 일화에서는 이전의 典故를 근거로 삼아 상대방(주로 정치가, 관료)의 현실적인 잘못과 정치적 폐단을 지적하는 논변이 서사적인 맥락으로 표현되기도 하였으며, 또한 고대 서책 중의 기록을 근거로 하여 생동감 있는 현실 상황으로 재구성한 일화가 수록되기도 하였다. 이러한 기록 태도는 작자의 勸諫 의도를 우회적으로 표현하고자 했던 다양한 표현수법 중의 하나로 볼 수 있겠다. Lienüzhuan(열녀전) compiled by Liu Xiang(유향), contains a double transmission of ‘the praise & condemnation of women"s words and actions’ and ‘the preaching of the monarchs’ hidden behind it. From the perspective of Liu Xiang, who was concerned about the discipline of the Han Dynasty, it is necessary to review the expressions used to cover the author"s intentions rather than simply evaluating and understanding women"s activities. In this study, I would like to look at Lienüzhuan"s expression as a narrative technique to increase persuasion and influence away from ideological character interpretation. Through such expressions, I can find out how the practice of norms as a woman and the political attitude as a ruler narrated. Most of the anecdotes are based on the main character"s statement “I heard……”. It was narrated as a technique of persuading the other person through the argument of “I heard……” and ending the situation. Even the most widely known norms in everyday life were narrated realistically through the setting of characters, situations, and developments made by the end of situations to enhance practical understanding. In addition, based on everyday moral codes, the argument was expressed in an narrative context to point out the realistic wrongs and political abuses of the other party (mainly politicians and bureaucrats). Some anecdotes were also reworked as a lively reality based on records from ancient books that appeared earlier than of Lienüzhuan. These expressions of Lienüzhuan are considered to be included in the various ways in which the author intended to indirectly express his expostulation.

《列女傳》 삽입 시가의 표현 양상

강현경(Kang, Hyun-kyung) 동아인문학회 2018 동아인문학 Vol.43 No.-

漢나라 劉向은 《列女傳》 총 104편의 전기문에서 100여명의 여성이 보여준 규범 실천과 윤리 덕목을 다양한 표현 수법으로 기록하였다. 그 중 18편의 전기문 중에는 삽입 시가가 20여 차례나 수록되어 있는데, 본고에서는 총 18편의 전기문 중에 수록된 삽입 시가의 내용을 7가지의 표현 양상으로 나누어 살펴보았다. 삽입 시가는 모두 중심인물의 일화와 밀접한 관련을 맺고 있는 것으로, 그 위치는 대부분 인물의 대화 중간이나 끝 부분에 있고, 때로는 서사 부분 중에 삽입되는 경우도 있다. 작자는 시가를 삽입하기 이전에 작품명을 밝히고 있거나, 단순히 시가의 인용 사실을 명확히 밝힌 뒤에 시가를 삽입하기도 하였고, 시가의 주제를 먼저 알리고서 시가를 삽입하기도 하였다. 그러한 《列女傳》의 삽입 시가는 등장인물의 언어를 대신하거나, 혹은 대화 속의 강력한 의미를 반복적으로 강조하면서 행위 시도를 확실히 나타내려는 표식의 역할을 하고 있다. 그런데 삽입 시가는 등장인물의 개성을 선명하게 부각시키고 일화의 내용을 다채롭게 표현하는 효과를 지녔어도, 일화의 부가적 성분으로 출현한 것이라고 본다. 일화 중에 시가를 삽입하지 않고 일화 단독으로도 본 주제를 강조할 수 있음에도 불구하고, 작자 유향은 일화 중에 발생된 상황과 주인공의 언동에 부합된 삽입 시가를 출현시킴으로써 해당된 일화의 기록방식을 다양하게 표현하고자 하였던 것이다. 그런 결과, 해당 일화는 시가의 발생 상황을 이해하게 하고 그것에 함축된 의미를 제대로 파악할 수 있는 창작 배경으로 동원된 부분으로 이해할 수 있게 하였으며, 아울러 삽입된 시가 대부분을 전기문의 주인공 여성이 지은 작품으로 인식하게 만들었다. 한마디로 말해서, 일화 중에 시가 형태를 삽입한 수법은 《列女傳》의 전기문 수록 방식을 다채롭게 만든 독특한 표현 양상이라고 인정할 수 있겠다. In LieNüZhuan, Liu Xiang emphasizes the practice of norms and ethical virtue shown by 104 women and it contains their actions through diverse methods of expression. In general, the nature of these acts emerged uniquely through the logical and strongly persuasive speaking skills of the women protagonists. While recording the words and actions of the characters, sometimes a woman protagonist expresses her perspective or attitude by composing a poem or quoting a poem, or reveals her feeling by singing a song filled with deep meaning, or cases where very symbolic songs (children’s songs) that foreshadow situation that will occur in the future are inserted. The emergence of the inserted poems within these anecdotes brings about novel changes in the language scene, escaping from the monotonous, fragmented recorded anecdote, as well as having unique expression effects that spotlights the individuality of the characters. LieNüZhuan contains 104 biographies, and among the 18 biographies, about 20 inserted poems are included. In this manuscript, among the 18 biographies, we looked at the 7 expression forms in the contents of the inserted poems. All of the inserted poems are closely related with the anecdotes of the main characters, it is generally located in the middle or end of the character’s language speech, and sometimes there are cases when it is inserted in the narrative part. Before inserting the poem, the writer reveals the name of the work or inserts the poem after simply, clearly revealing the quoting fact, and first informs about the subject of the poem and then inserting the poem. Other than this, the inserted poem emerges during the unfolding of the situation (event). These inserted poems in LieNüZhuan substitutes for the language of the characters or repeatedly emphasizes strong meaning in the conversation and plays a formula role which definitely shows the action. In general, it can be considered that these inserted poems display a part of the character’s language expression using the poem’s form. However, the inserted poem clearly spotlights the individuality of the character and has the effect of diversely expressing contents of the anecdote, and it can be said to display value added components of the anecdote. Although it is possible to emphasize this subject in the anecdote independently without inserting poems in the anecdote, the author’s taste is to diversely express the recording method of the anecdote by displaying the inserted poems that conforms to the incurred situation and character’s words and actions in the anecdote. As a result, the incurred situation of the poems in the relevant anecdote is understood and one can understand the parts mobilized through the background of the composition in which the implied meaning can be accurately understood, combined with the inserted poems generally allowing for recognition as a work that is made by female characters in the biographies. To say in word, the method that inserts poem form in anecdotes can be recognized as a unique condition that makes the biography including method of LieNüZhuan diverse.

코로나 19(COVID-19) 온라인 학습참여가 치위생(학)과 학생들의 자기통제력에 미치는 영향요인

강현경(Hyun-Kyung Kang),이지영(Ji-Young Lee) 한국구강보건과학회 2021 한국구강보건과학회지 Vol.9 No.2

Objectives: The purpose of this study is to measure dental hygiene students’ self-control, self-confidence, self-regulation, and task difficulty preferences for online learning; it also seeks to identify the factors that influence dental hygiene students’ self-control. Methods: An independent t-test and one-way ANOVA were used to analyze differences in the self-control, self-confidence, self-regulation, and task difficulty preference of dental hygiene students currently enrolled in two universities in Busan. A Scheffe test was conducted, and a multiple linear regression analysis of the factors impacting self-control was conducted as well. Results: The results show that confidence and self-regulatory efficacy significantly influence participants’ self-control. Conclusions: Higher self-confidence and self-regulation are associated with greater self-control.

한국전통발효음식과 전문가 치아미백을 시행한 자연치의 색조변화와의 관련성

강현경(Kang, Hyun-Kyung),임현주(Lim, Hyun-Ju) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.10

본 연구는 한국전통발효음식과 미백치아의 색조변화와의 관련성을 알아보고자 시행하였으며, 연구방법은 전 문가 치아미백을 시행한 자연치아를 한국전통발효음식에 일정기간 침전 후 치과용 측색기를 이용하여 치아색조변화 의 정도를 객관적으로 측정하였다. 본 연구에 사용된 치아시편은 30개로 한 치아당 30회 측정되었으며, 전체 측정 횟수는 900회 실시되었다. 측정은 치과용 측색기 ShadeEye NCC_® Dental Chroma Meter를 사용하였다. 수집된 자료 는 PASW 18.0을 사용하여 분석한 결과, 미백 전, 후 명도와 황색채도에서 유의한 차이가 나타났으며(p<0.001), 용액 침전 후 명도와 황색채도는 시간에 따라 변화하였다(p<0.001). 침전용액에 따른 색조변화량의 차이를 알아본 결과, 미백 후부터 1주 동안, 2주에서 3주까지의 기간 동안 각 침전용액에 따라 유의한 차이가 나타났다(p=0.001, p<0.001). 한국전통발효음식은 침전기간과 침전용액에 따라 미백치아의 색조변화에 영향이 있음을 알 수 있었다. 하지만 본 연 구는 구강 내의 상태 그대로를 재연하지 못하였기에 구강 내 상태, 섭취빈도, 구강위생관리에 따라 차이가 있을 것 이다. This study is to examine the relation between Korean fermented food and discoloration on teeth, which have undergone profession tooth whitening. The color change of natural tooth, which has undergone professional tooth whitening, is objectively measured by dental colorimeter after being immersed in Korean fermented food for certain period. The tooth specimens used in this study are 30 pieces and measured 30 times per one tooth, 900 times totally by dental colorimeter ShadeEye NCC_® Dental Chroma Meter. As a result of analyzing the collected data by using PASW(statistical package) 18.0, the significant difference is found (p<0.001) in lightness and yellowness before and after of professional tooth whitening. The lightness and yellowness after immersion is changed (p<0.001) according to time. As a result of examining the degree of discoloration based on type of fluids, the similar difference is indicated (p=0.001, p<0.001 1,2 and 3 weeks after getting professional tooth whitening. As a result, Korean traditional fermented food influences on discoloration on bleached tooth depended on the duration of immersion and the type of fluids. However, this study failed to represent internal oral condition accurately therefore the results of this study could be altered by the internal oral condition, frequency of consumption of food, and the management oral hygiene.