• 대한치과교정학회지
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• 제28권2호
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• pp.203-217
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• 1998

Sella는 오랜 동안 교정학에 있어 필수적인 landmark로서 중요한 위치를 차지해 왔다. 그러나 sella turcica는 그 안에 성장호르몬을 비롯한 많은 중요 호르몬을 분비하는 뇌하수체를 함유하고 있는 구조물로서 sella turcica의 크기는 뇌하수체의 크기를 비교적 정확히 반영한다고 알려져 있다. 따라서 만일 뇌하수체의 크기와 그 기능이 서로 비례한다면 두부방사선 사진에서 관찰되는 sella turcica의 크기와 성장호르몬을 비롯한 여러 뇌하수체 호르몬 분비 기전간에 밀접한 관련이 있을 것으로 추측되며 만일 그렇다면 악안면 성장에 중요한 역할을 하는 호르몬 분비 차이에 의한 악골부조화와 이로 인한 III급 부정교합과의 상관관계도 의심해 볼 수 있다. 따라서 본 연구에서는 50명의 정상교합자 남녀와 50 명의 III급 부정교합자 남녀를 대상으로 하여 측모 두부방사선사진과 전후방 두부방사선 사진에서 관찰되는 sella turcica의 부피를 구하고 두부방사선 분석을 통해 IIII 부정교합간의 상관 관계를 구하였다. 연구 결과 정상교합군보다 III급 부정교합군에서 sella turcica의 부피가 유의하게 큰 것으로 나타났으며 (p<0.001), III급 부정교합군에서 여성이 남성 보다 더 큰 sella turcica부피를 갖는 것으로 나타났다(p<0.05). 또한 III급 부정교합을 반영하는 APDI, ANB, effective mandibular length등의 항목에서 sella turcica부피와 높은 상관관계를 나타냈고 전두개저 길이에 대한 sella turcica 부피의 비를 표시하는 Sella Index 는 sella turcica 부피 자체보다 III급 부정교합을 더 정확히 반영하였다. 따라서 악안면 발육에 대한 성장호르몬의 효과나 sella turcica부피와 뇌하수체 호르몬 분비량과의 관계에 대한 지속적인 연구, sella turcica부피에 따른 악안면 성장에 대한 장기적인 연구를 바탕으로 Sella Index를 III급 부정교합을 예측하는 지표로서 활용할 수 있을 것이다.

• Imaging Science in Dentistry
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• 제31권1호
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• pp.43-49
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• 2001

Purpose: To investigate the shape and size of normal sella turcica on cephalometric radiograms. Materials and Methods: Cephalometric radiograms of 200 orthodontic patients of age ranging 6-42 years were examined. All subjects were divided into 5 groups by age, the dimensional change of sella turcica was examined according to age, and the configurations of sella turcica floor, tuberculum sella, and anterior and posterior clinoid process were also observed. Results: The contours of sella turcica floor were flat type in 54% and concave type in 46%. The contours of tuberculum sella were right angle type in 55% and obtuse angle type in 44%; Acute angle type and plane type were very rare comprising 0.5%, 0.5% each. The configurations of anterior clinoid process were point type in 80% and round type in 20% of cases, and those of posterior clinoid processes were point type in 60% and round type in 40% of cases. The dimensional change of sella turcica according to age range had significantly positive linear trend to sella turcica length, height, and width until 25 years. After 26 years, no significant increase was found in sella turcica dimension. Especially, the sella turcica length had more proportional increase than that of sella turcica height and width. Conclusion : The results of this study revealed that the configuration of normal sella turcica was variable and the dimensional change of normal sella turcica had a linear tendency with age until 26 years.

• 대한소아치과학회지
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• 제49권3호
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• pp.241-252
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• 2022

이 연구는 안장의 형태와 지연된 치령의 연관성을 알아보고자 수행되었다. 16세 미만 389명의 치령을 Demirjian 방법으로 평가하였고, 치령에서 연대 연령을 뺀 Age discrepancy (AD)를 계산하였다. 측방두부계측 방사선 사진 상 안장 형태에 따라 8가지로 분류하고 Sella turcica bridging (STB) 정도를 수치화하기 위해 Interclinoid distance를 안장의 길이로 나눈 Bridging ratio를 기준으로 4가지로 분류하였다. Kruskal Wallis 검정과 Mann Whitney 검정을 이용하여 8군과 4군에서 각각 AD의 유의성을 확인하였다. 일부 안장 형태 이상 군에서 정상보다 낮은 AD를 보였고 정상 안장 형태군과의 AD의 차이는 4 - 5개월에서 1년 3개월로 다양했다. STB 정도가 심해질수록, AD는 감소하였다. 정상 STB군과 경미한 STB군의 AD 차이는 7개월이고, 중등도 이상의 STB군에서는 1세 이상 치령이 지연되었다. 성별에 따른 안장 형태와 STB 정도는 유의한 차이가 없었다. 이 연구를 통해 일부 안장 형태 이상과 STB가 지연된 치령과 연관성이 있음을 확인하였다. 안장의 형태는 지연된 치령을 예측하는 보조적 수단으로 사용될 수 있다.

• 대한방사선기술학회지:방사선기술과학
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• 제42권1호
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• pp.1-7
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• 2019

In order to analyze the factors affecting incidence angle and incident point when conducting a general radiography using Sella Turcica, the length and width of the head bone according to age and gender, length and width of Sella Turcica, and the distance between the front and the top of EAM to Sella Turcica were measured. The subjects were 400 patients who underwent a Skull series. For statistical analysis, t-test and ANOVA analysis were conducted using SPSS Ver.22.0. For post-test, Duncan was conducted and if the results were 95% or more (p<.05), it was determined to be significant. As a result of this study, the average length of the head bone was 177.45 mm, where the males were 182.84 mm and the females were 172.05mm showing that males were measured longer (p<.001). The width of the head bone was 116.98mm on average, where the males were 119.18mm and the females were 114.77mm(p<.001) showing that males were measured longer. The average length of Sella Turcica was 4.59mm, where the males were 4.54mm(p<.001) and the females were 4.63mm(p<.001) showing that females were measured longer. The average length of Sella Turcica was 7.08mm, where the males were 7.01mm(p<.001) and the females were 7.16mm(p<.001) showing that females were measured longer. The general radiology examination of Sella Turcica at a medical facility should be conducted in consideration of age and gender in accordance with the characteristics of Koreans.

• 대한치과의사협회지
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• 제12권8호
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• pp.585-595
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• 1974

저자는 한국인 소년기 남녀 94명의 X-선 규격사진상에서 sella turcica에 대하여 관찰계측한 결과 다음과 같은 결과를 얻었다. (1) sella turcica의 형태는 I, III, II, IV형의 순으로 나타났고, 특히 II형은 남이 1명, 여가 3명이었고 IV형은 94 예중 단지 여자 1명에서만 관찰할수 있었다. (2) ∠∂는 sella의 형태 및 두개골의 전후 성장방향 연구를 하는데 하나의 기준점이 될수있다고 사료되었다. (3) ∠BY'는 하악(symphysis)의 성장방향을 알 수 있고, ∠BH는 두개의 전후 성장방향을 측정할수 있었으므로 가치있다고 생각되었다

• Imaging Science in Dentistry
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• 제45권1호
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• pp.15-22
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• 2015

Purpose: This study was performed to assess the reproducibility of identifying the sella turcica landmark in a three-dimensional (3D) model by using a new sella-specific landmark reference system. Materials and Methods: Thirty-two cone-beam computed tomographic scans (3D Accuitomo$^{(R)}$ 170, J. Morita, Kyoto, Japan) were retrospectively collected. The 3D data were exported into the Digital Imaging and Communications in Medicine standard and then imported into the Maxilim$^{(R)}$ software (Medicim NV, Sint-Niklaas, Belgium) to create 3D surface models. Five observers identified four osseous landmarks in order to create the reference frame and then identified two sella landmarks. The x, y, and z coordinates of each landmark were exported. The observations were repeated after four weeks. Statistical analysis was performed using the multiple paired t-test with Bonferroni correction (intraobserver precision: p<0.005, interobserver precision: p<0.0011). Results: The intraobserver mean precision of all landmarks was <1 mm. Significant differences were found when comparing the intraobserver precision of each observer (p<0.005). For the sella landmarks, the intraobserver mean precision ranged from $0.43{\pm}0.34mm$ to $0.51{\pm}0.46mm$. The intraobserver reproducibility was generally good. The overall interobserver mean precision was <1 mm. Significant differences between each pair of observers for all anatomical landmarks were found (p<0.0011). The interobserver reproducibility of sella landmarks was good, with >50% precision in locating the landmark within 1 mm. Conclusion: A newly developed reference system offers high precision and reproducibility for sella turcica identification in a 3D model without being based on two-dimensional images derived from 3D data.

• 대한소아치과학회지
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• 제48권1호
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• pp.122-128
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• 2021

Short root anomaly는 비정상적으로 짧고 뭉툭한 치근 형태를 가진 드문 질환이다. 대부분 상악 중절치에 대칭적으로 나타나며 영구치에서만 관찰되어 왔다. 이 증례는 9세 여환으로 혼합치열기에 짧은 치근 발달을 주소로 개인병원에서 의뢰되었다. 방사선 사진 및 구강 내 검사에서 법랑질 저형성증과 치내치와 같은 다른 치아이상과 함께 상악 및 하악 전치부와 하악 제 1대구치에서 SRA가 관찰되었다. 5년동안의 장기추적 관찰을 통해 환아의 모든 치아들은 혼합치열기에서 영구치열기로 변화하였고 모든 영구치에서 전반적인 SRA가 관찰되었다. 교정적 진단을 위해 촬영된 측면 두부 방사선 사진에서 치아 이상과 밀접한 관련이 있는 것으로 보고된 전방과 후방 상돌기 사이의 석회화인 sella turcica bridge 또한 관찰되었다. 이러한 여러 요소들을 통하여 치근 흡수나 치아 상실의 예방과 성공적인 관리 위해 SRA를 조기 진단하는 것은 매우 중요하다. 이 증례 보고에서는 다른 치아이상과 sella turcica bridge와 함께 전악에 걸쳐 나타난 전반적인 SRA를 보이는 환아를 장기적으로 관찰하고 의미있는 결과를 나타내고 있기에 이를 보고하는 바이다.

• Journal of Korean Neurosurgical Society
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• 제52권2호
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• pp.152-155
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• 2012

A Rathke's cleft cyst (RCC) is a benign pituitary cyst derived from the remnant of Rathke's pouch, and usually presents as an intrasellar lesion with varying degrees of suprasellar extension. However, to date, a description of a primary prepontine RCC with no intrasellar component has not been reported. The author describes an exceptional case of a symptomatic RCC located behind the sella turcica in a 41-year-old woman who presented with severe headache. The author also provides an embryological hypothesis of the development of an ectopic RCC, with a special emphasis on radiologic characteristics.

• 치과방사선
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• 제14권1호
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• pp.81-87
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• 1984

This study was performed to observe the secondary images and to analyse the relationships between the primary and secondary images in panoramic radiograph. Using the Moritta's Panex-EC panoramic x-ray machine and the human dry skull, the author analysed 17 radiographs which were selected from 65 radiographs of the dry skull that attached the radiopaque materials, and the attached regions of the radiopaque materials were the normal anatomical structures which were important and selected as a regions for the evaluation of the secondary images effectively. The results were as follows; 1. The cervical vertebrae showed three images. The midline image was the most distorted and less clear, and bilateral images were slightly superimposed over the posterior border of the mandibular ramus. 2. In mandible, the secondary image of the posterior border of the ramus was superimposed on the opposite ramus region, and this image was elongated from the anterior border of the ramus to the lateral side of the posterior border of the ramus. The secondary image of the condyle was observed on the upper area of the coronoid process, the sigmoid notch and the condyle in opposite side. 3. In maxilla, the posterior region of the hard palate showed the secondary image on the lower part of the nasal cavity and the medial wall of the maxillary sinus. 4. The primary images of the occipital condyle and the mastoid process appeared on the same region, and only the secondary image of the occipital condyle was observed symmetrically on the opposite side with similar shape to the primary one. 5. In the cranial base, the anatomical structures of the midsagittal portions like a inferior border of the frontal sinus, sella turcica, inferior borderr of the sphenoid sinus and inferior border of the posterior part of the occipital bone showed the simillar shape between the primary and secondary images symmetrically. 6. The petrous portion of the temporal bone showed the secondary image on the lateral side of the sella-turcica, and the secondary images of the posterior border of lesser wing, superior border of greater wing of the sphenoid bone and posterior border were observed on the anterior-superior and inferior region of the sella-turcica.

• Imaging Science in Dentistry
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• 제34권3호
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• pp.165-169
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• 2004

Craniofacial dysostosis is considered to be one of rarely observed syndromes characterized by premature closing of all cranial sutures. The first patient was a 4-year-old male infant who had been complaining of empyema. Clinical findings showed exophthalmos, hypertelorism and facial asymmetry. Conventional radiographs demonstrated abscence of cranial sutures and underdeveloped maxilla. CT scan demonstrated the digital impressions of the inner surface of the cranial vault, enlarged and depressed sella turcica. The second patient was a 2-year-old female infant who had been complaining of facial deformity. Clinical findings showed hypertelorism and underdeveloped maxilla. Radiographs showed premature synostosis of all cranial sutures, depressed and enlarged sella turcica, and hypoplastic maxilla. 3 years after operation, her look improved. However, resurgery may be considered to decreasing intracranial pressure and for correction of facial deformity. Two interesting cases showing ‘cloverleaf’ skulls were presented.