골격형 Ⅲ급 전치개교와 과개교합에 대한 비교고찰 및 MEAW에 의한 치험예

백승학,양원식 대한치과교정학회 1991 대한치과교정학회지 Vol.21 No.3

The purpose of this report is to review vertical dysplasia such as open bite or deep bite in skeletal Class Ⅲ malocclusion and their treatment modality and to present two cases treated with MEAW. The results obtained were as follows. A. Open bite case 1. The treatment time was 3 year 8 months. 2. Upper and lower incisors showed extrusion and especially lower anterior alveolar process showed remodelling. 3. The mesially inclined upper and lower molars were uprighted and especially lower first molars showed extrusion that means remodelling of alveolar bone. 4. Normal over bite and over jet were established. 5. Mandible showed slight clockwise rotation. 6. Maxilla showed slight downward bending of ANS part. 7. Upper lip showed downward drop and lower lip showed retraction and touch between upper and lower lip was established. 8. Tongue posture of post-treatment was more raised than pretreatment. B. Deep bite case 1. The treatment time was 1 year 8 months. 2. Upper incisors showed intrusion and labioversion and lower incisors showed slight intrusion and linguoversion. 3. The lower molars showed distal uprighting and intrusion and upper molars showed mesial movement and extrusion. 4. Normal over bite and over jet were established. 5. Maxilla did not show downward movement. 6. Mandible showed slight clockwise rotation. 7. Lower lip showed retraction and downward drop and upper lip showed downward drop.

순구개열환자의 치아 수와 형태 이상에 관한 연구

백승학,양원식 대한치과교정학회 2001 대한치과교정학회지 Vol.31 No.1

순구개열은 선천성 악안면 기형 중에서 발생률이 가장 높은 질환이며 특히 동양인에게 높은 빈도로 발생된다. 그리고 순구개열에서는 파열부 조직의 선천적 상실과 파열부 봉합 수술후 형성된 반흔에 의한 상악골의 열성장과 상악 악궁의 협착, 코의 형태 이상 등과 함께 치아의 수, 크기와 형태 및 맹출 이상도 높은 빈도로 동반된다. 따라서 저자들은 순구개열 환자의 치아 수, 형태 및 맹출 이상에 관한 임상적 자료를 수집,평가하여 진단과 치료계획 수립시 기초자료로 사용하기 위하여 본 연구를 시행하였다. 1988년 3월부터 1999년 2월까지 서울대학교병원 교정과에 내원하였던 순구개열환자 241명의 초진시 교정 chart와 cleft chart, orthopantomogram, intraoral x-ray film, 진단용 모형을 사용하여 순구개열군 별로 매복치, 과잉치, 결손치, 왜소치의 유무와 위치를 조사하여 다음과 같은 결론을 얻었다. 1.결손치는 비교적 높은 발생빈도 (56.8%) 를 보였으며, 치아별 발생빈도는 상악 측절치와 상악 제2소구치에서 높은 수치를 보였다. 순구개열 군별 결손치의 발생율은 구순구개열군과 구순치조열군이 구순열군과 구개열군에 비해 높게 나타났다. 그리고 구순열군, 구순치조열군, 구순구개열군 내에서 모두 양측성이 편측성에 비해 결손치의 발생율이 높게 나타났다. 2.과잉치는 11.2 %에서 발견되었으며, 장소별 발생빈도는 영구치열과 유치열에서 상악 측절치와 상악 견치 사이에서 가장 많이 발생되었다. 순구개열 군별 과잉치의 발생율은 구순열군, 구순치조열군, 구개열군, 구순구개열군의 순이었다. 3.매복치는 18.3% 에서 관찰되었으며, 치아별 발생빈도는 상악 측절치와 상악 견치에서 그 발생 빈도가 가장 높았다. 순구개열 군별 매복치 발생율은 구순열군, 구순구개열군, 구개열군, 구순치조열군의 순이었다. 4.왜소치는 15.8%에서 발견되었으며, 치아별 발생빈도는 상악 측절치와 상악 견치에서 가장 많았다 순구개열군별 왜소치의 발생율은 구순치조열군, 구순구개열, 구순열의 순이었다. 그리고 구개열군에서는 왜소치가 발견되지 않았다. Cleft lip and/or palate (CLP) is one of the most common congenital craniofacial anomalies and occurs more frequently in Asian people. Dental abnormalities in number, size, shape, and eruption of teeth are frequently associated with CLP. The purposes of this study were to investigate the effects of CLP on number, size, shape and eruption of teeth and to provide basic clinical data for diagnosis and treatment of the CLP patients. With the orthodontic and cleft charts, diagnostic models, orthopantomograms and intraoral x-ray films from 241 CLP patients who visited Dept. of Orthodontics, Seoul National University Dental Hospital, we evaluated the frequency of congenital missing teeth, supernumerary teeth, impacted teeth, and microdontia. The results were as follows ; 1.Frequency of congenital missing was relatively high up to 56.8 %. Congenital missing occurred frequently in the maxillary lateral incisor and the maxillary second premolar. Among the CLP types, frequencies of congenital missing in cleft lip and palate group and cleft lip and alveolus group were higher than those of cleft lip group and cleft palate group. And bilateral cleft showed higher frequencies than unilateral ones. 2.Supernumerary tooth was shown in 11.2 % of CLP patients. It occurred frequently in the area between the maxillary lateral incisors and the maxillary canine. Among the CLP types, cleft lip group showed relatively most highest frequency. 3.Impaction was shown in 18.3 % of CLP patients. It occurred most frequently in the maxillary lateral incisor and the maxillary canine than other teeth. Among the CLP types, cleft lip group and cleft lip and palate group showed most highest frequencies. 4.Microdontia was shown in 15.8 % of CLP patients. It occurred the most frequently in the maxillary lateral incisors and maxillary canines. Among the CLP types, cleft lip and alveolus group and cleft lip and palate group showed relatively higher frequencies, There was no microdontia in cleft palate group.

한국인 성인의 악안면 연조직의 심미적 안모형태분석에 관한 연구

백승학,양원식 대한치과교정학회 1991 대한치과교정학회지 Vol.21 No.1

This study was designed to analyze morphological characteristics of Korean young adults, norms and standard deviation of variables, sexual differences, correlationship between each area of face and correlationship between hard tissue and soft tissue. The primary sample consisted of 45 males and 57 females who were early and middle twenties and had acceptable profile, no history of previous orthodontic treatment, absence of remarkably large overjet and overbite, full complement of permanent teeth, Class Ⅰ skeletal and dental relationships and good vertical facial proportions. Their cephalograms were analyzed morphologically with a computer morphometrics. Then the final sample- 25 males and 38 females -were selected within 1 S.D. of E-line, ANB, P/A facial height ratio, Interincisal angle, L1 to A-Pog, ODI and APDI. The results of the study were as follows: 1.In the form and proportion of facial skeleton there were no significant differences between males and females, but in the size males were larger than females. 2.The dental protrusion patterns had no significant sexual difference and no significant correlationship between protrusion of upper lip and inclination of upper incisor. But mentolabial angle had positively correlated with interincisal angle and negatively with inclination of upper and lower incisor. 3.In the relationship between nose and soft-tissue profile, males were larger than females in nasal length, height and angular measurements. 4.In analysis of soft-tissue profile, males were larger than females in the length and thickness. In the angular measurements and proportion of soft-tissue profile, there were no significant differences between males and females.

토끼 태자에 형성시킨 구순열상의 치유과정에서 수종 성장인자 분포에 관한 연구

백승학,양원식 대한치과교정학회 1997 대한치과교정학회지 Vol.27 No.5

성체의 상처 치유과정 중 반흔조직 형성에 수종의 성장인자가 관련이 있는 것으로 보고되고 있으나, 태자의 피부상처가 반흔형성없이 치유되는 기전에 관한 성장인자의 역할은 아직 알려져 있지 않다. 따라서 본 연구의 목적은 토끼 태자의 상처 치유과정에서 반흔조직의 형성과 관련이 있는 수종 성장인자의 분포를 조사하기 위한 것이다. 뉴질랜드산 흰 토끼를 임신 3기의 중반인 24일째에 자궁절개술을 시행하고 태자에 인위적으로 구순열상을 만든후, 봉합한 군(봉합군)과 봉합하지 않은 군(비봉합군), 정상대조군(sham operated control group)으로 나누고 이들을 각각 수술후 1, 2, 3, 5, 7일째에 희생시켜 상처치유에 대한 육안관찰 소견과 H&F염색소견 및 TGF-β1, TGF-β2, PDGF, bFGF의 면역조직화학적 염색 소견을 관찰하여 다음과 같은 결론을 얻었다. 1. 봉합군과 비봉합군에서 전기간동안 염증반응과 반흔조직의 형성 그리고 신생 혈관의 형성 증가는 없었다. 2. 비봉합군의 재상피화가 봉합군에 비해 다소 느렸다. 3. bFGF는 정상대조군, 봉합군과 비봉합군에서 차이가 없었다. 4. PDGF는 봉합군과 비봉합군에서 1, 2일군에서 증가하였다가 그후 감소하여 정상대조군과 차이가 없었다. 5. TGF-β는 봉합군과 비봉합군에서 1, 2일군에서 약간 증가하였다가 그후 감소하여 정상대조군과 차이가 없었다. TGF-β1에 비하여 TGF-β2의 검출양이 많았다. Recently several growth factors such as TGF-β1, TGF-β2, PDGF, bFGF are known to play an important role in scar formation following adult tissue injury. But there is little known about the role of growth factors in fetal tissue healing without scar formation. Therefore the purpose of this study is to investigate the distribution of growth factors which are involved with scar formation in the artificially created cleft lip wound healing of fetuses. The author had undergone hysterotomy and created cleft lip-like defects on fetuses of New Zealand White Rabbit in mid-third trimester(24 days). Fetuses were divided into 3 groups(the repaired group, the unrepaired group and the sham-operated control group). At 1, 2, 3, 5, 7days after procedure, the repaired, the unrepaired and the control groups were obtained by Caeserean section. After documenting the viability of fetuses, fetuses were photographed to compare size and facial morphology and sectioned for histological examination by H & E stain and spatial and temporal deposition of TGF-β1, TGF-β2, PDGF, bFGF by immunohistochemical method. The findings are summarized as follows 1. There were lack of inflammation and scar formation and neovascularity in the repaired and the unrepaired group during experimental periods. 2. The reepithelialization of the unrepaired group was slower than that of repaired group. 3. There were no differences of distribution of bFGF in the control, the repaired and the unrepaired group. 4. PDGF was increased at post-op. first and second day and decreased after post-op. third day. Eventually, there were no differences in the control, the repaired and the unrepaired group. 5. TGF-β1 and TGF-β2 were slightly increased at post-op. first and second day and decreased after post-op. third day. Eventually there were no differences in the control, the repaired and the unrepaired group. And TGF-β2 is more densely stained than TGF-β1.

생체분해성 망막압정을 이용한 망막고정에 대한 실험적 연구

김용백,민병무,김창식,박근성,김승영,길숙종,조항진,이성복,노승무,송규상,강대영,조준식,양준묵,정경수,최선웅,이진호,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Biodegradable retinal fixation devices obtain mechnical fixation of the retina with desirable chorioretinal scarring and with the potential for local, sustained release of antimetabolites and steroids to inhibit proliferative vitreoretinopathy. We manufactured a biodegradable retinal tack with barb that was designed in order to prevent intrusion from implantation of retinal tacks. This study was carried to evaluate the efficacy for retinal fixation and the capability for sustained release of drugs with a newly designed biodegradable retinal tack Biodegradable retinal tacks were made of polymers of glycolic acids and were designed with barbs in a shape to prevent the disinsertion. Biodegradale retinal tacks are divided into 3 parts, a conical portion that is inserted into the sclera, a cylinder portion that remains in the vitreous, and a neck portion between the pin and the cylinder. The tapered conical end was manufactured to allow easy insertion through the retina and choroid into the sclera. A cylinder portion was manufactured with a tapered angle that fixes firmly into the orifice of 19 gauge spinal needle. A neck portion, 0.4 mm in diameter, was designed to prevent disinsertion from following implantation of retinal tack. The applicator was a 19 gauge spinal needle and its orifice was prepared to 15°angle to accept the tapered cylinder portion of the retinal tack. The retinal tacks, secured in the needles, were passed through the formed vitreous and inserted into the retina, choroid, and sclera and were released by pushing the internal needle, usually within 2-3mm of the medullary ray of the posterior rabbit retina A retinal tack was placed in each of 8 pigmented rabbit eyes. Slit-lamp biomicroscopy, indirect ophthalmoscopy and fundus photography were performed periodically from 1 day to 8 weeks after surgery. Eight eyes were enucleated and studied by light microscopy at 8 weeks. Biomicroscopic evaluation of the animals revealed edemas adjacent to the retinal surfaces immediately after insertion of the biodegradable retinal tacks in all the animals. These edemas disappeared after 1 week. The first noticeable change in the size of retinal tacks was shown after 2weeks. The size of the retinal tacks gradually got smaller, decreasing to about one-half at 4 weeks and about one-third at 8 weeks. All retinal tacks remained in inserted places without any movement for an 8 week period. On light microscopy, epiretinal proliferations were seen to extend into the vitreous cavity. Cellular capsules that lined the inner aspect of the scleral defect caused by tack insertion were found. However the adjacent retina had a normal cytologic appearance and architecture in all specimens. We manufactured a biodegradable retinal tack that is designed to prevent intrusion from implantation of retinal tacks. All biodegradable retinal tacks reduce in size with time, but no retinal tacks extruded from the inserted place. The newly designed biodegradable retinal tack can be used for retinal fixation and may be used as a vehicle for the introduction of pharmacologic agents to prevent the cellular events that promote proliferative vitreoretinopathy.

Rat의 복강에 삽입한 Filorouracil-Polyglycolic acid제형의 Fluorouracil용출에 관한 연구

노승무,정경수,오정연,김진향,양준묵,강대영,송규상,최정목,최선웅,이진호,조준식,민병무,김용백,김창식,박근성,김승영,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

A common form of relapse in adenocarcinoma of the stomach is intraperitioneal dissemination, in fact, among gastric adenocarcinoma patients who have undergone surgery intended to cure, approximately 50% of the patients develope initial recurrence in the peritoneal cavity regardless of the anatomic site of the primary tumor within the stomach. The efficacy of systemic postoperative chemotherapy to prevent peritoneal recurrence of gastrric adenocarcinoma is not satisfactory. There is still a great need for improved therapeutic strategies on the disseminated microscopic disease and small miliary nodules remaining on the peritoneal surface or lymphatics after operation. The authers have made fluorouracil-polyglycolic acid composite disks(Fu-PGA disks) with fluorouracil and biodegradable polymer: polyglycolic acid for more effective intraperitoneal chemotherapy. We inserted the Fu-PGA disk(s) in the peritoneal cavity of rat and pharmacokinetic study was performed to measure fluorouracil concentration in the peritoneal fluid, plasma, liver, kidney and heart tissue at 24 hour, 72 hour and 168 hour after insertion of Fu-PGA disk(s). Myelosuppressive action of this composite also was determined following its administration. The data of this study suggested that Fu-PGA composite will be a new device releasing drugs in a controlled manner and having targetability to peritoneum, and this device will be improving the efficacy of intraperitoneal chemotherapy for gastric adenocarcinoma.

Rat의 복강에 삽입한 Fluorouracil-Polyglycolic acid 제형의 Fluorouracil 용출에 관한 연구

노승무,정경수,오정연,김진향,양준묵,강대영,송규상,최정목,최선웅,이진호,조준식,민병무,김용백,김창식,박근성,김승영,김학용,인현빈 忠南大學校 癌共同硏究所 1998 癌共同硏究所 硏究誌 Vol.2 No.1

A common form of relapse in adenocarcinoma of the stomach is intraperitoneal dissemination, in fact, among gastric adenocarcinoma patients who have undergone surgery intended to cure, approximately 50% of the patients develope initial recurrence in the peritoneal cavity regardless of the anatomic site of the primary tumor within the stomach. The efficacy of systemic postoperative chemotherapy to prevent peritoneal recurrence of gastrric adcnocarcinoma is not satisfactory. There is still a great need for improved therapeutic strategies on the disseminated microscopic disease and small miliary nodules remaining on the peritoneal surface or lymphatics after operation. The authers have made fluorouracil-polyglycolic acid composite disks(Fu-PGA disks) with fluorouracil and biodegradable polymer: polyglycolic acid for more effective intraperitoneal chemotherapy. We inserted the Fu-PGA disk(s) in the peritoneal cavity of rat and pharmacokinetic study was performed to measure fluorouracil concentration in the peritoneal fluid, plasma, liver, kidney and heart tissue at 24 hour, 72 hour and 168 hour after insertion of Fu-PGA disk(s). Myelosuppressive action of this composite also was determined following its administration. The data of this study suggested that Fu-PGA composite will be a new device releasing drugs in a controlled manner and having targetability to peritoneum, and this device will be improving the efficacy of intraperitoneal chemotherapy for gastric adenocarcinoma.

위암환자의 복강내에 투여한 Mitomycin C-Carbon Particle의 Mitomycin 용출에 관한 연구

노승무,조영훈,정경수,오정연,김진향,양준묵,강대영,송규상,조준식,최선웅,이진호,민병무,김용백,김창식,박근성,인현빈,정현용,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherpy seems a logical choice for cancer chemotherapy. The Mitomycin C(MMC) adsorbed by the activated charcoal particles(CH) is relatively released when the drug concentration surrounding the carbon particles becomes low in the peritoneum of the peritoneal cavity. For the intraperitoneal chemotherapy on the advanced gastric adenocarcnoma, mitomycin C adsorbed on activated carbon particles was administered in the peritoneal cavity just before abdominal wall closure. The closed drainage tubes were inserted in the peritoneal cavity and clamped for tuo hours after completion of operation. MMC concentrations were serially measured in peritoneal fluid, plasma and urine at 2hour, 48 hour, 72 hour and 168 hour following its administration in order to study the efficacy of the MMC-CH as a drug delivery system. There were minimal toxicities in born marrow, liver, and gastrointestinal system after intraperitoneal MMC-CH administration. The data of this study suggested that MMC-CH may have a somewhat more beneficial effect than surgery alone when administered in optimal dose and schedules, but the MMC concentration of the peritoneal fluid was not sufficient to eradicate remnant cancer cells, and effective duration of maintenance was only below 24 hours in the peritoneal fluid and plasma.

최근 11년간 서울대학교병원 교정과에 내원한 순구개열 환자의 내원 현황에 관한 연구(1988.3-1999.2)

양원식,백승학 대한치과교정학회 1999 대한치과교정학회지 Vol.29 No.4

순구개열은 악안면 선천성 기형 중에서 발생율이 가장 높으며, 여러 선학들의 조사연구에 의하면 순구개열의 발생빈도가 증가하는 것으로 알려져 있다. 따라서 순구개열 환자의 치료에서 중요한 부분을 담당하는 교정과의 순구개열환자의 내원동향에 관한 역학조사가 필요하다고 생각된다. 이에 저자들은 서울대학교병원 교정과에 내원한 순구개열 교정환자들의 연도별, 종류별, 성별, 연령별, Angle씨 부정교합군별 분포에 따른 역학적 특성과 국내병원에서의 수술시기 등의 치료현황에 대한 임상자료 등을 파악하고 이를 순구개열 환자의 교정 진단 및 치료계획 수립에 중요한 기초자료로 사용하기 위하여 본 연구를 수행하였다. 1. 본 병원 교정과에 내원한 순구개열 환자의 수는 1988년부터 1990년까지 증가한 후 1992년까지 감소추세를 보였고, 1993년부터 1996년까지 비교적 일정한 추세를 보 이다가 1997년 이후 현저한 증가 추세를 보였다. 2. 내원한 환자를 순구개열의 종류에 따라 조사한 결과 구순열 : 구순치조열 : 구개열 : 구순구개열이 7.6 : 19.2 : 9.6 : 63.6의 비율을 보였다. 편측 대 양측의 발생빈도는 구순열은 79 : 21, 구순치조열은 77 : 23, 구순구개열은 75.3 : 24.5 으로서 편측의 발생빈도가 양측에 비해서 높았다. 그리고 편측성에서 좌, 우측간의 발생빈도는 구순열이 53.3 : 46.7 구순치조열이 59.5 : 40.5, 구순구개열이 59.2 : 40.8 으로서 좌측의 발생빈도가 우측에 비해서 높았다. 3. 순구개열의 남 : 여 발생빈도는 구순열은 57.9 : 42.1, 구순치조열은 68.8 :31.2, 구순구개열은 76.1 : 23.9 로서 남자의 발생빈도가 여자에 비해서 높았다. 그러나 구개열에서는 41.7 : 58.3으로서 여자의 발생빈도가 남자에 비해서 높게 나타났다. 4. 내원 환자를 연령군 별로 조사한 결과 7-12세 군이 52%로서 압도적으로 많았고, 0-6세 군 (20.4%), 13-18세 군(17.2%), 18세 이상 군 (10.4%)의 순이었다. 5. 구순열의 봉합수술시기로는 0-3개월 군이 60.3%로서 가장 많았고, 4-6개월 군이 17.9%로 두 번째였다. 6. 구개열의 봉합수술시기로는 1-2세군이 31.7%로 가장 많았고, 0-1세군은 25.6%, 2-3세군이 12.1%였다. 구개 및 상악 성장이 어느 정도 이루어진 5세 이상 군은 11.6%를 차지하였다. 7. 구순 반흔 제거수술시기로는 4-6세군 (27.5%), 6-8세군 (19.6%), 2-4세군 (13.7%)이 60%이상을 차지하여 초등학교 취학 전에 구순의 반흔을 제거하려 함을 알 수 있었다. 8. 비변형 교정수술시기로는 0-2세군 (7.1%), 2-4세군 (14.3%), 4-6(21.4%), 6-8세군 (14.3%)으로 초등학교 취학이전이 57.1%로서 최근의 조기 치료경향을 반영하는 것으로 보인다. 9. 인두피판술은 평균 6세에 시행되었으며, 수술 시행 시기별의 차이를 보이지 않고 고른 분포를 보였다. 10. 내원한 환자를 순구개열 종류와 Angle씨 분류법에 의해 조사한 결과, 구순열군은 I급이 가장 많았고 Ⅲ, Ⅱ급의 순이었으며, 구순치조열, 구개열, 구순구개열군은 Ⅲ급이 가장 많았고, I, Ⅱ 급의 순이었다. 그리고 III급의 발생빈도의 비율차이는 구순치조열은 61.7%, 구개열은 73.9%, 구순구개열군에서 79.3%로서 구순구개열에서 압도적으로 Ⅲ급의 발생빈도가 높게 나타났다. 11. 모든 연령군에서 Ⅲ급 부정교합의 빈도가 가장 많아서 (72.7%) 전치부의 반대교합이 주된 내원 동기가 됨을 간접적으로 알 수 있었다. Cleft lip and/or palate is one of the most common congenital craniofacial anomalies. According to previous epidemiologic studies, incidence of cleft lip and/or palate has been increasing nowadays. However, there is not report about epidemiologic study of cleft lip and/or palate patients who visited dept. of orthodontics in Korea. So the purpose of this study was to provide the epidemiological characteristics and important basic clinical data for the diagnosis and the treatment of the cleft lip and/or palate patients. With the orthodontic and cleft charts, diagnostic models and X-ray films from 250 patients with cleft lip and/or palate who visited Dept. of Orthodontics, Seoul National University Dental Hospital during the last 11 years, the authors investigated patient`s visiting year, types of cleft, patient`s gender, and Angle`s classification of malocclusion, and surgery timing. The results were as follows : 1. The number of cleft patients who visited Dept. of Orthodontics, SNUDH increased during 1988-1990 and then it declined until 1992. From 1993 to 1996, it showed a stationary trend. After 1997 it showed an overwhelmingly increasing trend. 2. In the cleft type, the ratio of cleft lip : cleft lip and alveolus : cleft palate : cleft lip and palate was 7.6 : 19.2 : 9.6 : 63.6. In cleft position, unilateral clefts were more than bilateral ones (cleft lip 79 : 21. cleft lip and alveolus 77 : 23, cleft lip and palate 75.5 : 24.5). In cleft side, left clefts were more than right clefts (cleft lip 53.3 : 46.7. cleft lip and alveolus 59.5 : 40.5, cleft lip and palate 59.2 : 40.8). 3. In gender ratio, males were more than females in cleft lip (57.9 : 42.1), cleft lip and alveolus (68.8 : 31.2) and cleft lip and palate (76.1 : 23.9). But in cleft palate females were more than males as 41.7 : 58. 3. 4. In the age groups, 7-12 year group was the most abundant as 52%, and then 0-6 year group (20.4%), 13-18 year group (17.2%), more than 18 year group (10.4%) were followed as descending order. 5. Most of the cleft lip repair surgeries were operated in 0-3 month (60.3%) and 4-6 month (17.9%). 6. The cleft palate repair surgeries were done in 1-2 year (31.7%), 0-1 year (25.6%), 2-3 year (12.1%), more than 5 year (11.6%) as descending order. 7. The lip scar revision surgeries were done before admission at elementary school in 60%. (4-6 year (27.5%). 6-8 year (19.6%), more than 10 year (19.6%), 2-4 year (13.7%) as descending order). 8. The rhinoplasties were done before admission at elementary school in 51.7%, (0-2 year (7.1%), 2-4 year (14.3%), 4-6 year (21.4%), 6-8 year (14.3%)). 9. The pharyngeal flap were done at 6 Y (72.5 momths) after birth on average and there was even distribution of surgery timing. 10. In relationship between Angle`s classification of malocclusion and cleft types, Class I was most abundant and Class Ⅲ, ClassⅡ were followed as descending order in cleft lip group. But Class Ⅲ was most abundant and Class I, Class Ⅱ were followed as descending order in cleft and alveolus group, cleft palate group, and cleft lip and palate group. The percentage of frequency in Class Ⅲ malocclusion was overwhelmingly higher in cleft lip and palate group than any other groups. 11. Because the frequency of class Ⅲ malocclusion was most prevalent in all age groups, anterior crossbite was the most common chief complaint of cleft patients.

한국인 여성 Ⅱ급 2류 부정교합환자의 측모두부방사선 형태학적 특징

김태우,백승학 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.5

본 연구의 목적은 한국인 여성 Ⅱ급 2류 부정교합 환자의 측모두부 방사선계측사진상의 형태학적 특징을 평가하고, 같은 Ⅱ급 2류 부정교합을 가진 백인과의 형태학적 차이를 비교하는 것이다. 연구자료는 초진시의 연구모형에서 Ⅱ급 2류 부정교합과 4mm이상의 수직피개교합 및 영구치열을 가지는 환자로 제한하여 선정하였다. 그후 인종에 따라서 1군 (16명, 한국인 여성, 평균연령:18세 2개월)과 2군(20명, 백인여성, 평균연령14세 2개월)으로 분류하였다. 각 군의 측모두부 방사선계측사진의 투사도를 작성한 후 38항목을 계측하였고 평균 및 표준편차를 계산하였다. 군간의 비교를 위하여 independent t-test를 시행하여 다음과 같은 결과를 얻었다. 1. 전치부 수직피개 교합량, SN to mandibular plane angle, Palatomandibular plane angle, FMA항목은 1,2구간의 유의한 차이를 보이지 않았다. 그러나 SN to palatal plane angle과 SN to occlusal plane angle 항목은 1군이 크게 나타나서 2군에 비해 구개평면과 교합평면의 전하방 경사를 보였다. 그리고 ODI 항목은 1군이 2군에 비해 과개교합 경향이 낮게 나타났다. 2. 하악체와 하악지의 길이 항목은 1,2군간에 유의한 차이가 존재하지 않았으나, upper gonial angle 항목이 1군이 2군에 비해 현저히 작아서 하악골의 반시계방향 회전 경향이 감소되었음을 나타내었다. 3. 전안면고경의 상하비율과 전후안면고경비율 항목은 1,2군간의 통계적 유의차가 없었다. 4. 전치부 수평피개 교합량과 하악골의 전후방위치 항목은 1,2군간의 차이가 없었으나, 상악골은 1군이 2군에 비해 후방위치되었다. 5. 상하악 기저골에 대한 하악전치의 돌출도 항목이 1군이 더 크게 나타난 것을 제외하고는 상,하악 절치의 기준 평면에 대한 경사도와 거리 및 절치간각 항목은 1,2 군간의 차이가 없었다. 6. 상악구치의 구개평면에 대한 수직거리 항목는 1,2군간의 차이가 없었으나 하악구치의 하악평면에 대한 수직거리항목은 1군이 크게 나타났으며, 이것과 교합평면의 전하방 경사와 감소된 하악골의 반시계방향 회전 경향이 관계있는 것으로 생각된다. 7. Ricketts의 심미선에 대한 상순과 하순의 돌출도 항목은 1군이 모두 크게 나타났다. The purposes of this study were to evaluate the cephalometric characteristics of Korean patients with Class Ⅱ division 2 malocclusion and to compare Korean females with Caucasian females who had same type of malocclusion. All of the samples had Class Ⅱ division 2 malocclusion with deep overbite (more than 4mm) and full permanent dentition. These samples were divided into two groups according to the races: Group 1(N=16; Korean females; average age=18Y 2M) and Group 2 (N=20; Caucasian females; average age=14Y 2M). The pretreatment lateral cephalograms were measured, analyzed and compared by using 38 variables and independent t-test. And the results were as follows:. 1. Although there were no differences in Overbite, SN to mandibular plane angle, Palatomandibular plane angel, and FMA between Group 1 and 2, the other vertical relation variables of maxilla and mandible (SN to palatal plane angle, SN to occlusal plane angle, ODI) of Group 1 showed more clockwise rotation tendency of occlusal plane and less hypodivergency tendency than of Group 2. 2. There were no differences in mandibular body length and ramus height between Group 1 and 2 except small upper gonial angle of Group 1. There was less counterclockwise rotation tendency of mandible in Group 1. 3. There were no statistical significant differences in UAFH/LAFH and PFH/AFH between Group 1 and 2. 4. Although there were no differences of overjet and anteroposterior position of mandible between Group 1 and 2, the position of maxilla of Group 1 was more retropositioned than that of Group 2. 5. Except the more protrusion of lower incisor to A-Pog of Group 1, there were no differences of inclination and distance of upper and lower incisors to basal plane between Group 1 and 2. 6. The distance from upper first molar to palatal plane showed no difference between Group 1 and 2. But the distance from lower first molar to mandibular plane of Group 1 was greater than that of Group 2. So it may be partially related to the clockwise rotation of occlusal plane and the less counterclockwise rotation tendency of mandible of Group 1. 7. Group 1 had more protrusive upper and lower lips than Group 2.