쌍생아(雙生兒) 치아(齒牙) 우식증(齲蝕症)에 관(關)한 역학적(疫學的)인 연구(硏究)

정태련,Jung, Tae-Ryun 대한소아치과학회 1974 大韓小兒齒科學會誌 Vol.1 No.1

The Study reported here was designed to analyze the prevalence of Dental Caries in the primary teeth of monozygote twins, and to ascertain and compare the intrapair differences with the intrapair differences in control pairs. The prevalence of dental caries in the primary teeth of 40 pairs of presumably monozygote twins, based on phenotypic analysis, was studied. The age range was from 3 to12 years. The control group consisted of pairs that included a twin chosen at random and an unrelated child of the same sex and age, so that for each pair of twins there was a corresponding control pair. The clinical examination was carried out by an operator using an oral mirror and sharp explorers, and with good lighting. 40 pairs of twins were examined with a total of 4,950 primary tooth surfaces (990 primary teeth) and 40 control pairs with a total of 4,935 primary tooth surfaces (987 primary teeth). Five surfaces were considered for each tooth. After the def individual index was determined, the ratio between this index and the number of examined surfaces was established in each case, the cer (Caries experience rate) index. The def and cer averages were determined for the subjects and the controls. All intrapair differences in twin and control groups were compared following the paired sampling method. The following conclusions were made: 1. Intrapair differences in the control group were significantly greater than in twins, when defs, ds, es, fs, and cer were compared. 2. The genotype appeared to be a determining factor in dental caries susceptibility or resistance, although the environment played an important role as well. 3. Intrapair differences in American children were significantly greater than in Korean when defs, es, fs, and cer were compared, but ds was equal.

음주자의 스트레스 정도와 알코올 의존도와의 관련성

정태련,박재용,한창현 慶山大學校 保健福祉硏究所 2001 保健福祉硏究 Vol.6 No.-

The purpose of this study is to examine the recent conditions of drinking-related problems, and to test relationship between alcohol dependence and drinkers' stress level. This study was carried out on 1,200 subjects who live in K city. The data were collected from March 20 ,2001 to April 15, 2001 by means of questionnaire. It includes 8 items of general characteristics, 8 items of drinking habits, 5 items for the measurement of the stress level using "the brief encounter psychological instrument" by Frank and Zynaski(1988), and 10 items which was developed by WHO as a method for judging the presence of a alcohol dependence. The data were analyzed by frequency, chi-square and multiple logistic regression methods. The findings of this study were as follows; The subjects consisted of 713 males(72.9%) and 265 females(27.1%). Around 2/3 of them are 40-50's, twenties 12%, and thirties 24.6%. Drinking rate is 45.4% for female subjects, and 88.1% for male ones. Male subjects who drink 2-3 times a week command an majority. It represents that a drinking frequency shows statistically significant difference according to age, education level, marriage status, and average income level. However, female subjects who drink under one time a month account for 53.7%. There is no variables that show statistically significant differences. Drinkers' alcohol dependence rates show 74.7% for males, and 33.3% for females. Comparing alcohol dependence group with non-alcohol dependence group, It represents that there is statistically significant difference according to marriage status for males, age and average income level variables for female subjects. 42.9% of Male drinkers are stressed over average level, and age, education level, marriage status, occupation, and average income level are significantly related with stress level. 42.9% of female drinkers are also stressed over average level, and education level and marriage status are significantly related variables. In a survey of relationships between stress experience and alcohol dependence, the findings show that higher stress score results in a higher alcohol dependence. However, there is no statistically significant for female subjects. In order to examine the independent variables related to alcohol dependence, multi-logistic regression analysis using the presence of alcohol dependence as dependent variable, was tested. The results show that marriage status and stress are significant variables for males, and only marriage status is significant one for females. Alcohol dependence, as known an alcoholism, is a primary, chronic disease with genetic, psychological, and environmental factors influencing its development and manifestations. Currently, researchers are on the way to finding the genes that influence of friends, stress levels, and the ease of obtaining alcohol, also may influence drinking and the development of alcoholism. Still other factors, such as social support, may help to protect even high-risk people from alcohol problems. In summary, as drinkers' alcohol dependences are significantly related with stress, it should explore healthy ways to reduce stress. Also, it will be desirable to practice a health education in cooperation with family, institution, and community in order to moderate in drink. In special, It is necessary to develop a temperance-related program and to continuously guide and educate alcohol dependents. This research may provide the basic data to prevent alcohol abuse in adults and contribute to designing a further studies of this area.

시판되는 이유식의 불소 함량과 유아의 불소 섭취에 관한 연구

박선이,손동수,정태련 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.1

Supplying of adequate amount of the fluoride is very effective on the dental caries prevention. Under the adequate fluoride supply at the time of the birth and after, namely in the formative stage of the permanent teeth, it enhances the crystal structure of the enamel and lowers the depth of the pits and fissures. Therefore, through the promotion of the tooth morphology and increase of acid-resistance, prevention of dental caries can be feasible. But, on the other hand, overintake of the fluoride bring about the adverse effects such as the mottled tooth. In order to calculate the amount of fluoride intake in infancy and to evaluate on the fluoride content in 29 kinds weaning diets, HMDS-diffusion technique & fluoride ion electrode were used. 1. Powdered type weaning diets diluted with distilled water showed mean fluoride value of 0.095±0.05ppm in ranges from 0.033ppm to 0.2ppm. This shows quite low fluoride concentration. 2. In case of infant's fruit juice, fluoride concentration was 0.28±0.02ppm in home-products and 0.94±0.09ppm in imported-products. 3. Semifluid type weaning diets showed 0.5ppm fluoride concentration. 4. Imported-products showed higher fluoride concentration. 5. Fluoride concentration in weaning diets was highly affected by water used during processing & dilution rather than raw materials itself. 6. In view point of mean fluoride concentration (0.095ppm powder type weaning diet), infancy had mean dietary fluoride intakes of 0.103-0.138㎎F/day.

Ricketts 분석법에 의한 혼합치열기 정상교합 아동의 두부방사선계측학적 평가에 대한 연구

한세현,이상민,정태련 大韓小兒齒科學會 1999 大韓小兒齒科學會誌 Vol.26 No.2

부정교합의 진단과 치료를 위해서는 두 개 및 안면부의 형태와 성장 양상에 대한 지식이 필수적이다. 그러나 소아치과 영역에서 필요한 혼합치열기 아동에 대한 연구는 성인의 그것에 비하여 많지 않음에 저자는 혼합치열기 정상교합 아동의 두부방사선학적 표준치를 얻고자 건치아동 선발대회의 후보중 보존적, 보철적, 교정적, 성형외과적 치료경험이 없고 연구모형 상에서 비교적 교합이 양호하며 안모 및 전신 발육 상태가 정상으로 생각되는 아동 102명(남자 48명, 여자 54명)을 선정하여 측모 두부방사선규격사진을 촬영한 후, Ricketts 분석법에 의해 분석하여 다음과 같은 결론을 얻었다. 1. 전두개저 길이, 후안면고경, 하악체의 길이를 나타내는 항목에서 남자가 여자보다 유의하게 큰 값을 나타내었고(p<0.05), Porion은 남자가 여자에 비해 후방위치하고 있었다(p<0.01) 2. 안면의 깊이를 통해서 본 Pogonion은 남자가 더 전방위치하고 있었고(p<0.05), 하악하연평면각은 남자에서보다 여자에서 유의하게 컸으며(p<0.01), FH 평면에 대해 남자의 상악중절치가 여자에 비해 유의하게 전방으로 경사져 있었다.(p<0.05) 3. 연령에 따라 유의하게 변하는 항목은 전두개저 길이, 상악대구치의 위치(p<0.01), 하악골체의 길이(p<0.05)였다. 4. 상악골의 고경, 안면의 깊이, 하악하연평면각, 상악돌출도등에서도 연령에 따른 변화는 보였지만 유의한 차이는 없었다.(p>0.05) IN order to define a current set of Korean children norm with mixed dentition, following study was done. The subjects were 102 healthy dentition contestants(48boys, 54girls). Standardized lateral head roentgenograms were taken, and Ricketts analysis was done. Results were as follows: 1. Length of anterior cranial base, posterior facial height, corpus length were longer in male than in female(p<0.05), and Porion was located posteriorly in male than in female(p<0.01). 2. Through facial depth, Pogonion of male was more forwardly positioned(p<0.05), mandible was significantly steeper in female, and maxillary anterior teeth were significantly tipped forward in male(p<0.05) 3. Variables such as length of anterior cranial base, upper molar position(p<0.01) and corpus length(p<0.05) were significantly changed by age. 4. Maxillary height, facial depth, mandibular plane angle, convexity were changed by age, but not significantly(p>0.05)

유구치 1급 와동에서 와동벽 위치에 따른 microtensile bond strength 비교 연구

이현헌,정태련,김정욱,장기택 大韓小兒齒科學會 2006 大韓小兒齒科學會誌 Vol.33 No.4

In Class I cavity, the highest C-factor could be obtained and it means the highest polymerization shrinkage stress. In this study, high C-factor model was designed. The pulpose of present study was to determine differences of Microtensile bond strength (MTBS) of class I cavity pulpal and axial wall specimens in primary molar. Twenty clean mandibular 2nd primary molars were randomly divided into two groups Different composite Resins (Filtek Z250, 3M ESPE & Filtek Supreme, 3M ESPE) were bulk filled and photo cured. Axial wall specimens and pulpal specimens were prepared at the same teeth, All specimens were divided into 4 groups and MTBS were evaluated. Group ZP : Filtek Z250-Pulpal wall Group ZA : Filtek Z250-Axial wall Group SP : Filtek Supreme - Pulpal wall Group SA : Filtek Supreme - Axial wall The results were as follows: 1. Mean MTBS of ZP & ZA and SP & SA were significantly different(p<.001). 2. There was no significant difference between MTBS of ZP & SP and ZA & SA. 유구치 1급 와동의 복합레진 수복 시 C-factor가 가장 크게 나타나며 중합수축에 의한 응력도 가장 크게 나타난다. 이 실험에서는 응력이 각 와동벽 위치에 따라 다르게 나타나는 양상을 microtensile bond strength(MTBS)실험을 통해 확인해보았다. 하악 제2유구치 20개를 두 개의 군으로 나누었다. 각각 다른 종류의 복합레진으로 수복하였고 개별 치아에서 각각 치수벽 시편과 축벽 시편을 얻어 총 4개의 군으로 나누었다. MTBS를 측정하였으며 통계적 유의성을 student T-test를 통해 검정하였다. ZP: Filtek Z250- 치수벽, ZA: Filtek Z250- 축벽, SP : Filtek Supreme - 치수벽, SA: Filtek Supreme - 축벽, 다음과 같은 결과를 얻을 수 있었다. 1. ZP군과 ZA군, SP군과 SA군 사이에서는 유의한 차이가 존재하였다(p<.001). 2. ZP군과 SP군, ZA군과 SA군 사이에서는 유의한 차이가 존재하지 않았다(p<.001).

대한소아치과학회 홈페이지의 진료 상담 코너 분석 및 개선 방향

우주형,정태련,김정욱,김종철 大韓小兒齒科學會 2006 大韓小兒齒科學會誌 Vol.33 No.4

The purpose of this study was to analyze the parental consultations, patients’ age and consulters. Also it was to improve the tendency of consultation homepage The subjects were 2485 questions on Korean Academy of Pediatric Dentistry Homepage except deleted questions which were not related with consultations. The examined contents were categorized into patients’ age, counseling contents, consulters. The results were as follows: 1. Patients mostly belonged to preschool children(64.29%). 2. In the subjects, questions were mostly about growth and development, restorative and pulp treatment. 3. In the subdivided subjects, great part of questions were about tooth eruption, restorative and pulp treatment and trauma. 4. The 93.72% of consulters were mothers. 5. We should reinforce with FAQ about growth and development, restorative and pulp treatment and trauma. Also we should improve on quality of information and childcare related contents and Homepage related pediatric dentistry. 본 조사는 대한소아치과학회 홈페이지의 진료상담 코너의 내용 및 환자의 연령, 상담자에 대한 내용을 분석하여 그 동향을 분석하고, 개선 방향을 제시하고자 시도되었다. 홈페이지가 개정된 2002년 3월 23일부터 2005년 3월 8일까지의 광고성, 비방성, 비관련성을 이유로 삭제된 질문은 제외하고, 2485건의 질문이었다. 조사 내용은 환자의 연령, 상담 내용, 상담자 등이었다. 1. 환자의 연령 분포는 학령전 아동이 대부분(64.29%)을 차지하였다(P<0.05). 2. 상담 내용은 대항목 분류에서 성장과 발육, 수복 및 치수 치료에 관한 질문이 상당수였다. 3. 상담 내용은 소항목별 분류에서 치아맹출, 수복 신경 치료, 외상에 관한 질문이 많았다. 4. 상담자의 93.72%가 어머니였다. 5. 상담 내용 중 많은 부분을 차지하는 성장과 발육, 수복 및 치수 치료, 외상 등에 대한 질문을 FAQ를 통하여 보강하고, 육아 관련 contents를 개발하는 등 정보의 질을 개선하고, 형식을 보다 구체화하며 분야별 상담 패널을 도입하는 등 전문화하여 홈페이지를 개선해야 할 것이다.

최근 5년간(2000-2005) 서울대학교 치과병원 소아치과의 진료현황 변화 및 신환분포에 대한 조사

최은정,정태련,김종철,김영재 大韓小兒齒科學會 2006 大韓小兒齒科學會誌 Vol.33 No.4

최근 출생률 감소, 우식 유병율 감소, 소아치과에 대한 일반 대중의 인식변화 등의 사회경제적 변화 및 치의학 기술의 발전에 따른 진료기법의 변화등에 의하여 소아치과 진료의 양상이 변화하고 있다. 이러한 변화양상을 파악하고 앞으로 소아치과 의료의 방향성을 설정하고자 본 연구를 시행하였다. 2000년 9월 1일부터 2005년 8월 31일까지 서울대학교 치과병원 소아치과에 내원한 모든 초진 및 재진환자를 대상으로 하여 신환 분포 및 진료 현황 변화 추세를 조사 연구한 결과 다음과 같은 결론을 얻었다. 1. 2000년도에는 예방치료가 14.5%, 수복치료가 52.6% 외과치료가 11.4%, 교정치료가 21.5%를 차지하였으나, 2005년도에는 예방치료가 12.1%, 수복치료가 38.3%, 외과치료가 13.7%, 교정치료가 35.5%를 차지하여 예방과 수복치료의 비율의 감소와 외과와 교정치료의 증가를 보였다. 2. 수복치료의 비율에 있어서 아말감과 기성금관, 치수치료의 비율은 감소하였고 글래스 아이오노머와 레진의 비율은 증가하였다. 3. 내원환자의 수는 2002년까지 증가하다 이후로는 감소 추세를 보였다. 4. 연령별 분포에서 2000년도에 비하여 2005년도의 신환 평균 연령이 감소하였다. The spectrum of pediatric dentistry has been changing recently, due to many socioeconomic changes and developments in dental materials. The purpose of this study was to recognize the changing pattern in pediatric dental treatment and to present the direction for pediatric dentistry in the future. Patient distribution and practice trends were reviewed based on the patient records of the department of pediatric dentistry, Seoul National University Dental Hospital, from 2000 to 2005. Results were as follows ; 1. In 2000, preventive treatments comprised 14.5%, restorative treatments 52.6%, surgical treatments 11.4% and orthodontic treatments 21.5%. In 2005, the percentages were changed to 12.1%, 38.3%, 13.7%, and 35.9% respectively, showing a decline in preventive and restorative treatments and an increase in surgical and orthodontic treatments. 2. In restorative treatments, the proportion of amalgam, stainless steel crown restoration and pulp treatments decreased, and that of glass ionomer and resin restoration increased. 3. The number of out-patients increased from 2000 to 2002, and decreased thereafter. 4. In 2005, the average age of patients decreased from that of 2000.

우유병우식증 경험아동의 5년 후 추적 조사 연구

이상언,정태련,이상훈 大韓小兒齒科學會 2000 大韓小兒齒科學會誌 Vol.27 No.2

우유병우식증에 이환된 아동의 추적 조사 연구의 일환으로, 유치열에서 우유병우식증을 가지고 있었던 아동이 5년 후 혼합치열에서 우식비경험군(caries-free group)및 일반아동(대조군)에 비해 유의하게 법랑질저형성증의 유병율에 차이가 있는지, 영구치우식경험율이 높은지, 만약 영구치우식경험율이 높다면 그 원인요소가 무엇인지 분석해 보고자 유치원에 다니는 원아 657명을 대상으로 1994년 5월 구강검진과 설문을 시행하였고, 5년 후인 1999년 이들 원아들이 주로 진학하는 것으로 파악된 인접지역에 있는 3개의 초등학교학생 4602명(남 2459명, 여2143명)을 대상으로 구강검진 및 설문조사를 하였다. 이 학생들 중 5년 전 피검 대상이었던 아동 101명(우유병우식경험군 45명, 우식비경험군 56명)을 찾아내고 대조군으로 비슷한 연령의 아동 50명을 무작위 추출하여 세 군을 비교 분석한 결과 다음과 같은 결론을 얻었다. 1.우유병우식경험군의 5년후 법랑질저형성증 이환율은 13.3%, 우식비경험군의 이환율은 3.5%로 조사되었으며 피검아동전체의 법랑질저형성증 이환율은 4.4%로 조사되어 우유병우식경험군의 법랑질저형성증 이환율은 피검아동 전체에 비해 유의하게 높았다(P〈0.01). 2.우유병우식경험군의 5년후 영구치우식경험율은 77.8%, 우식비경험군은 35.7%로 조사되었으며 피검아동 전체의 영구치우식경험율은 62.0%로 조사되어 우유병우식경험군의 영구치우식경험율은 우식비경험군에 비해 유의하게 높고(P〈0.01) 피검아동 전체의 경험율에 비해서도 유의하게 높았다(P〈0.05). 3.우유병우식경험군은 우식경험군에 비해 유의하게 칫솔질 횟수가 적고(P〈0.05) 칫솔질을 시작하는 시기도 늦었다(P〈0.01). 4.우유병우식경험군은 우식경험군에 비해 유의하게 우식성식품군의 섭취빈도가 높고(P〈0.05), 선호도도 높아(P〈0.05) 치아우식증에 이환되기 쉬운 식이습관을 가지고 있었다. 5.우유병우식경험군은 우식비경험군이나 대조군에 비해 치과정기검진 빈도가 유의하게 낮았다(P〈0.05). 주요어 : 법랑질저형성증, 영구치우식경험율, 우유병우식증

가시광선과 아르곤 레이저로 복합레진 중합시 미세누출에 관한 비교 연구

장기택,정태련,김종철 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.4

For the purpose of evaluation of microleakage of class V resin restoration, 64 extracted bovine teeth were filled with two kinds of light curing composite resins(Z-100, Clearfil) and polymerized with 40 seconds of visible light and with 10 seconds of argon laser. After 1000 thermocycling(5℃/55℃), specimens were placed in 1% methylen blue dye solution for 72 hours in 37℃ water bath. The specimens were sectioned at center of filling body and the degree of dye penetration was observed with a stereomicroscope. The following results were obtained, 1. Differences of the microleakage of resin restorations polymerized with 10 seconds of argon laser and 40 seconds of visible light were statistically insignificant. 2. There was more microleakage in Z-100 than clearfil and there was a statistical significancy (p<0.05).

소아치과 개원의 진료 현황 분석

최은정,정태련,한세현,김영재 대한소아치과학회 2006 大韓小兒齒科學會誌 Vol.33 No.3