• Title/Summary/Keyword: Cranial base

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AN ANALYSIS OF THE DENTO-FACIAL COMPLEX IN KOREAN (한국인 치아 및 안모형태에 관한 두부 X-선학적 연구)

  • Joo, Myung Ja
    • The korean journal of orthodontics
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    • v.1 no.1
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    • pp.21-27
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    • 1970
  • 저자는 교정학의 진단 및 치료에 응용하기 위하여 한국인 10세 아동 남여 50명과 성인 남녀 106명의 두부측모 X-선사진을 사용하여 $Bj\ddot{o}k$, Downs, Steiner 씨 등의 씨 분석법에 의해 다음과 같은 계측치를 얻었다. (1) 정상교합자 10세 아동 남여 50명과 23세 성인 남녀 106의 표준편차표를 작성하였다. (2) Anterior Cranial Base에 대한 Mandibular Body의 비는 약 1:1.1로 나타났다. (3) T to Po의 비(Holdaway ratio)는 약 4.2:1로 나타났으며 Tweed Triangle은 각각 $32^{\circ},52^{\circ},96^{\circ}$로 나타났다. (4) 한국인은 백인에서 보다 하악신부의 후방위, 즉 하악골 후방위로 나타났으며 동시에 한국인은 백인보다 상하악 전치의 진측경사를 갖인 안모로 나타났다.

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A STUDY ON THE ADAPTATION OF THE CRANIOFACIAL STRUCTURE TO THE VARIATIONS OF HEAD POSTURES (Head posture의 변화(變化)에 따른 악안면구조(顎顔面構造)의 적응(適應)에 관(關)한 연구(硏究))

  • Lee, Cheol-Min;Cha, Kyung-Suk
    • The korean journal of orthodontics
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    • v.22 no.1
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    • pp.169-177
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    • 1992
  • This investigation was carried out in order to find out changes in head postures and in craniofacial morphology, in relation to the inclination of cervical column. For this study 85 subjects, consisting 39 males and 49 females, between the ages of 7 to 24 years old were chosen, and following results were observed after analysing the correlation coefficients between each structures. 1. No definite relationships were observed between the inclination of cervical column (CVT/HOR) and the inclination of anterior cranial base (SN/VER) 2. No definite relationships were observed between the inclination of mandibular ramus (RL/HOR) and the inclination of mandibular inclination (MLP/VER). 3. In subjects with anteriorly inclined cervical column, increase in mandibular plane inclinations (ML/VER) were observed. 4. No definite relationships were observed between the inclination of cervical column (CVT/HOR) and changes in palatal plane (NL/VER).

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A Case of Osteopetrosis Including Mandible (하악골 침범을 포함한 골화석증 1예)

  • Shin, Keum-Back;Kim, Do-Yun;Oh, Hee-Myung
    • Journal of Oral Medicine and Pain
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    • v.24 no.1
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    • pp.1-8
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    • 1999
  • The authors experienced a diagnosis of a benign form of osteopetrosis based on the comprehensive data obtained from (1) clinical examination, (2) radiological and nuclear medicinal findings of the thickening of cortex of mandible, femur, clavicle, and the increased bone density of mandible, maxilla, cranial base, calvarium, lumbar, femur, and additionally (3) histopathological findings of sclerotic bony tissue in a Korean male of 38-year-old.

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A ROENTGENOEPHALOMETRIC STUDY OF HYOID BONE POSITION ON CENTRIC AND REST POSITION IN MALOCCLUSION (부정교합자의 중심교합위와 하악안정위시 설골위치에 관한 두부 X선학적 연구)

  • Lee, Jun-Gyu;Nam, Dong-Seok;Yang, Won-Sik;Seo, Jeong-Hun
    • The Journal of the Korean dental association
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    • v.13 no.10
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    • pp.941-946
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    • 1975
  • 치과교정학 분야에 있어서 부정교합자의 다양한 하악골 위치변화에 따른 Hyoid bone 위치변화에 대한 연구는 부족한 감이 있어, 저자등은 Hellman의 치령ⅢA 이후의 부정교합을 가진 남ㆍ녀 97명을 Angle씨 각급 부정교합의 분류에 의해 중심교합위와 안정위시의 두부 X선 사진을 가각 탐득하고 Hyoid bone의 위치변화를 측정하여 다름과 같이 결과를 얻었다. 1. 중심교합위에서의 Cranial base에 대한 Hyoid bone 위치변화에서는 Angle씨 ClassⅢ에서 남ㆍ녀 모두 물징적으로 전방에 위치하며, Mandibular plane에 대한 Hyoid bone위치변화에서는 각급 부정교합사이에 특기할 차이가 없다. 2. 안정위에서의 Hyoid bone위치는 중심교합위에서의 위치와 비슷한 분포를 나타내고 있다. 3. 중심교합위에서는 안정위로싀 위치변화에서 각급 부정교합 똑같이 후ㆍ하방 이동을 나타내고 있다.

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The Effect that CST gets to autonomic nerve system (두개천골치료가 자율신경계에 미치는 영향)

  • Sea, Hyun-Kyu;Kim, Byoung-Gon;Jung, Yeon-Woo
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.10 no.2
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    • pp.5-32
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    • 2004
  • We have studied the effect and application of CST which is the function and disease of the autonomic nerve system based on recovery of flexibleness of the autonomic nerve. CST purpose to keep sustenance of human body by recovering joints have limitation of mobility and controlling autonomic nerve system by diminution tense of the sympathetic nerve. CST makes well flowing of CSF by pressure the fourth ventricle of the brain or relaxation of soft tissues of the base of a cranial bone. There is no result of studies about CST in Korea yet. It will bring a benefit if it prove the effect of CST in countries depend on drugs way high such as Korea. It needs positive approach and definite research for the improvement.

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A CLASSIFICATION AND PROTOTYPING OF SKELETAL CLASS III ON ETIO-PATHOGENIC BASIS (병인론에 근거한 성인 골격성 III급 부정교합자의 분류와 그 prototype 제시를 위한 연구)

  • Hong, Soon-Xae;Yi, Choong-Kook
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.22 no.4
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    • pp.397-410
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    • 2000
  • Skeletal class III had been classified by the position of the maxilla, the mandible, the maxillary alveolus, the mandibular alveolus and vertical development. This morphologic approach is simple and useful for clinical use, but it is insufficient to permit understanding of the pathophysiology of dysmorphoses. The author hypothesizes that there are different patterns of mutual relation of the skeletal components which have contributed pathologic equilibrium of skeletal class III. The purpose of this study are threefold: 1) to classify skeletal class III in subgroups, which can show the architectural characteristics of the deformity, 2) to analyse the craniofacial architecture of each subgroup on etio-pathogenic basis, and 3) to characterize and visualize the pattern as a prototype. Materials used in this study were lateral cephalograms of 106 skeletal class III adults, which were analysed with modified Delaire's architectural and structural analysis. Linear and angular measurements of the individual subject were obtained and cluster analysis was used for the subgrouping. Data were evaluated for verification of the statistical significances. The following results were obtained. 1. By the modified Delaire's architectural and structural analysis and cluster analysis, skeletal class III adults were classified into 7 clusters and presented as prototypes, which could show the pathophysiology of the skeletal architecture 2. There was significant relationship in measurement variables of each cluster, which could reflect characteristics of the skeletal pattern of growth. 3. The flexure of cranial base had a close relationship to the anterior rotational growth of the maxilla and contributes to understand the etio-pathology of skeletal class III. 4. The proportion of craniospinal area in cranial depth, craniocervical angle and vertical position of point Om had a close relationship to rotational growth of the mandible and direction of condylar growth. They contribute to understand the etio-pathology of skeletal class III. In summary, the cranium and the craniocervical area must be considered in diagnosis and treatment planning of dentofacial deformity. And the occlusal plane can be considered as a representative which shows the mutual relationships of the skeletal components.

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CEPHALOMETRIC MEASUREMENT ACCORDING TO SKELETAL MATURITY STAGE OF THE HAND AND WRIST (수완부골성숙단계에 따른 두부방사선계칙학적 연구)

  • Choi, Hae-Woon;Kim, Jae-Hyung
    • The korean journal of orthodontics
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    • v.17 no.1
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    • pp.135-148
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    • 1987
  • To investigate the relationship between craniofacial growth and bone maturity of the hand wrist in normal occlusion, the author took cephalogram and handwrist radiogram of 391 students (male 192, female 199) and assessed the measurements of cephalogram according to skeletal maturity stages of the hand and wrist. In this study, four skeketal stages and 36 linear, angular measurements of the cephalometrics were selected. In hand-wrist X-ray the bones used to determine skeletal maturity were the middle phalanges of the third finger, and distal epiphysis of the radius. In cephalogram, the landmark used to measure the angle and length were N, S, Po., Ar., Go., Me., Gn., Pog., Point B, Point A, ANS, PNS, Or., U1, L1, U6, L6 etc.. The results were as follows, 1. The table of mean, standard deviation, p-value from measurements were made in each group and both sex. 2. The increased measurements according to skeletal maturity were anterior cranial bese length, posterior cranial base length, ramus height, anterior facial height, posterior facial height, L1 to mandibular plane (mm), facial plane angle. In contrast to, decreased measurements were genial angle, facial cnvexity and facial plane angle. 3. Denture pattern measurements (IMPA, FMIA, occlusal plane to Go-Gn, interincisal angle, U1 to SN plane, U1 to SN plane, U1 to facial plane, L1 to facial plane etc.) .had nothing to do with skeletal maturity. 4. Skeletal maturity had close relationship with craniofacial growth, but had little to do with tooth development.

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Segmental Aplasia of the Right Uterine Horn in a Primiparous Holstein Cow (홀스타인 초산우에서 우측 자궁각의 부분무형성 일례)

  • Kim, Ill-Hwa;Kang, Hyun-Gu;Hur, Tai-Young;Lee, Hae-Rim;Mo, In-Pil
    • Journal of Veterinary Clinics
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    • v.29 no.5
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    • pp.427-430
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    • 2012
  • An infertile, three-year-old primiparous cow was diagnosed preliminarily with pyometra by rectal palpation at 180 days postpartum. Ultrasonography showed that the cranial portion of the right uterine horn was distended with fluid, while the base portion of the horn was missing. A dense band of tissue connected the cranial portion of the uterine horn to the uterine body. However, the left uterine horn was normal. Gross postmortem analysis of the reproductive organs confirmed the ultrasonographic observations. Histopathological observations also showed that dark red-brown mucus filled the thin-walled right uterine horn, where neither caruncles nor uterine glands were observed. Finally, this primiparous Holstein cow was diagnosed with segmental aplasia of the right uterine horn.

MR diagnosis of cranial neuritis focusing on facial neuritis: Performance of contrast-enhanced 3D-FLAIR technique

  • Lee, Ho Kyu;Koh, Myeong Ju;Kim, Seung Hyoung;Oh, Jung-Hwan
    • Journal of Medicine and Life Science
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    • v.16 no.1
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    • pp.1-5
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    • 2019
  • Our purpose was to evaluate usefulness of the contrast-enhanced 3 dimensional fluid attenuated inversion recovery (3D-FLAIR) technique of half brain volume to diagnose the patients with facial neuritis based on segment-based analysis. We assessed retrospectively 17 consecutive patients who underwent brain MR imaging at 3 tesla for facial neuritis: 11 patients with idiopathic facial neuritis and 6 with herpes zoster oticus. Contrast enhanced 3D-FLAIR sequences of the half brain volume were analyzed and 3D T1-weighted sequence of the full brain volume were used as the base-line exam. Enhancement of the facial nerve was determined in each segment of 5 facial nerve segments by two radiologists. Sensitivity, specificity and accuracy of enhancement of each segment were assessed. The authors experienced a prompt fuzzy CSF enhancement in the fundus of the internal auditory canal in patients with enhancement of the canalicular segment. Interobserver agreement of CE 3D-FLAIR was excellent(${\kappa}$-value 0.885). Sensitivity, specificity, and accuracy of each segment are 1.0, 0.823, 0.912 in the canalicular segment; 0.118, 1.0, 0.559 in the labyrinthine segment; 0.823, 0.294, 0.559 in the anterior genu; 0.823, 0.529, 0.676 in the tympanic segment; 0.823, 0.235, 0.529 in the mastoid segment, respectively. In addition, those of prompt fuzzy enhancement were 0.647, 1.0, and 0.824, respectively. Incidence of prompt fuzzy enhancement with enhancement of the canalicular segment was 11 sites(55%): 6 (54.5%) in idiopathic facial neuritis and 5 (83.3%) in herpes zoster. Enhancement of the canalicular segment and prompt fuzzy enhancement on CE 3D-FLAIR was significantly correlated with occurrence of facial neuritis (p<0.001). CE 3D-FLAIR technique of the half brain volume is useful to evaluate the patients with facial neuritis as an adjunct sequence in addition to contrast-enhanced 3D T1-weighted sequence. On segment-based analysis, contrast enhancement of the canalicular segment is the most reliable. Prompt fuzzy enhancement is seen in not only herpes zoster, but in idiopathic facial neuritis.

Clinical Assessment of Intracranial Mesenchymal Tumors with Relevant to Non-meningothelial Tumors (두개강내 원발성 간엽성 종양에 대한 임상 고찰)

  • Yi, Hyeong Joong;Kim, Choong Hyun;Bak, Koang Hum;Kim, Young Soo;Kim, Jae Min;Ko, Yong;Oh, Suck Jun;Kim, Kwang Myung
    • Journal of Korean Neurosurgical Society
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    • v.29 no.1
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    • pp.44-50
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    • 2000
  • Objective : A few anecdotal cases of mesenchyme-derived tumors which grow into a cranial cavity have been reported that disclosed a dismal prognosis, due to their critical location, aggressive biological behavior, and high rate of surgical morbidity. The aim of this study is to search clinical factors related to these tumors. Methods : Eight patients who underwent surgical removal of intracranial mesenchymal tumors between January 1993 and December 1997 were studied retrospectively. The tumors included are three chordomas, two chondrosarcomas, two rhabdomyosarcomas, and one hemangiopericytoma. Authors compared clinical features, treatment, and results of our cases with reported cases. The mean follow-up period was 20.5 months. Results : All cases showed nonspecific, location-related clinical findings and arose from sphenopetroclival region. Single stage operation was performed in 4 cases, and skull base approaches in 3 cases. Adjuvant therapies were done in 2 cases. Recurrence was seen in 3 cases(37.5%), and 3 patients died. Interdisciplinary approach with otologic surgeon was done in 2 cases. Conclusion : Recent advancement of refined tactics has made these tumors amenable and provides prolongation of progression-free survival. These are modified skull base approaches, multi-modality treatment options, and inter-disciplinary team approaches. Good results may be expected for these mesenchymal tumors by aggressive resection and adjuvant therapies according to their biological nature.

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