• 대한소아치과학회지
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• 제23권2호
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• pp.537-548
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• 1996

To investigate the relationship between the calcification stages of mandibular canines and the skeletal maturity stage of the hand-wrist in subjects with normal occlusion and Class III malocclusion, hand-wrist radiographs and panoramic radiographs were taken from subjects of normal occlusions(94 males, 88 females) and Class III malocclusions(75 males, 76 females) who had no systemic diseases and no history of orthodontic or prosthodontic treatment. Fishman's method for the skeletal maturity stages of the hand-wrist and Demirijian's method for the calcification stages of mandibular canines were used and analyzed. The results were as follows : 1. In subjects with normal occlusion and Class III malocclusion, skeletal maturity of the hand-wrist and calcification of mandibular canines at various ages occured earlier in females than in males(p<0.05). 2. Comparing the skeletal maturity stages of the hand-wrist and the calcification stages of mandibular canines between subjects with normal occlusion and Class III malocclusion, there were no significant differences between the groups. 3. The correlation coefficient between the calcification stages of mandibular canines and the skeletal maturity stages of the hand-wrist. in subjects with normal occlusion and Class III malocclusion showed a high association(p<0.01). 4. In stage 4 of the skeletal maturity of the hand-wrist, the frequency distribution of calcification G stage among the various calcification stages was highest both in normal occlusion and in subjects with Class III malocclusion. However, there was no significant difference in the frequency distribution of calcification stages between the groups.

• Imaging Science in Dentistry
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• 제47권3호
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• pp.175-180
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• 2017

Purpose: Pineal gland calcification has been proposed to play a role in the pathogenesis of Alzheimer disease. This study evaluated the prevalence and extent of pineal gland calcification in cone-beam computed tomography (CBCT) scans of patients referred for dental implant therapy who could possibly be a vulnerable group for this condition. Materials and Methods: A retrospective evaluation of 500 CBCT scans was conducted. Scans that showed the area where the pineal gland was located were included. The scans were initially screened by a single observer to record the prevalence and extent of calcification. Six weeks following the completion of the study, another investigator randomly reviewed and selected 50 scans to investigate inter-observer variation, which was evaluated using reliability analysis statistics. The prevalence and measurements of the calcifications were reported using descriptive statistics. The chi-square test was used to compare the prevalence between males and females. Results: The prevalence of pineal gland calcification was 58.8%. There was no statistically significant correlation between age and the extent of the calcification. The prevalence of calcification was 58.6% in females and 59.0% in males. The average anteroposterior measurement was $3.73{\pm}1.63mm$, while the average mediolateral measurement was $3.47{\pm}1.31mm$. The average total calcified area was $9.79{\pm}7.59mm^2$. Conclusion: The prevalence of pineal gland calcification was high in patients undergoing implant therapy. While not all pineal gland calcifications lead to neurodegenerative disorders, they should be strongly considered in the presence of any symptoms as a reason to initiate further investigations.

• Archives of Plastic Surgery
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• 제34권1호
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• pp.111-114
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• 2007

Purpose: Dystrophic calcification occurs in damaged or devitalized tissues in the presence of a normal calcium and phosphorus metabolism. There are many reports on dystrophic calcification caused by injections of various types of drugs. The aim of this report is to highlight the fact that dystrophic calcification can be caused by the injection of a foreign body for aesthetic augmentation. Methods: This case report describes a patient presenting with dystrophic calcification caused by an injection of an unknown foreign body approximately 50 years ago. An 80-year-old man had localized cellulitis with swelling and ulceration on the dorsum of the left hand. The radiographs demonstrated a $5{\times}3.5{\times}1.7cm$ lesion between the first and second metacarpal bones and a $5{\times}2.5{\times}1.5cm$ lesion in the hypothenar region. The laboratory data and physical examinations were generally within the normal limits. The microscopic examination revealed dead bone fragments and dense collagenous tissue with dystrophic calcification. Results: After surgically removing the masses, the resulting defects were treated with an abdominal flap. The result was satisfactory in terms of symptoms and appearance. Conclusion: This case suggests that dystrophic calcification can be caused by an injection of a foreign body for aesthetic augmentation.

• 대한정형외과학회지
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• 제56권1호
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• pp.93-97
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• 2021

인대의 석회침착은 비교적 흔히 발생하는 질병으로 주로 견관절의 회전근개에 호발하며 만성기에는 보존적 치료를 할 수도 있지만 급성기에는 수술적 가료를 요하기도 한다. 슬관절의 십자인대에서 발생하는 석회화 침착은 매우 드물게 보고되고 있으며 특히 후방십자인대 내에서 발생한 석회화 침착은 거의 없다. 저자들은 51세 여자에서 증상을 동반한 슬관절의 후방십자인대의 실질부에 발생한 석회화 1예에서 8개월간의 보존적 치료로 호전되지 않아 수술적 치료를 시행하였으며 관절경적 석회 침전물의 절제 시 인대의 심한 훼손으로 잔존 인대의 보존이 힘들어 후방십자인대 재건술을 시행하였다. 술 후 2년에 석회화 침착의 재발은 없었고 증상은 소실되었기에 이를 문헌 고찰과 함께 보고하는 바이다.

• Journal of Chest Surgery
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• 제11권2호
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• pp.181-184
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• 1978

A case of idiopathic dilatation of Pulmonary artery with calcification is presented. The idiopathic dilatation of pulmonary artery has been recognized as a clinical entity since 1923, when Wessler and Jaches described the first case. Recently we experienced one case of Idiopathic Dilatation of Pulmonary artery with calcification which was very rare, and corrected with surgical treatment successfully.

• Journal of Chest Surgery
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• 제24권9호
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• pp.837-842
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• 1991

Calcification is a major problem in glutaraldehyde-preserved bioprosthetic valves. We have used bovine pericardium processed in a solution containing 0.625% glutaraldehyde, 0.05M HEPES buffer and 0.26% magnesium chloride in saline. And, we also treated the glutaraldehyde-preserved bovine pericardium with a surfactant, Triton X - 100 to reduce calcification. To evaluate the degree of calcification. 4 kinds of pericardial xenografts, group I [Xenomedica, equine pericardial xenografts], group II [0.625% glutaraldehyde-preserved bovine pericardiums], group III [0.5% Triton X - 100 treated bovine pericardiums], and group IV [1.2% Triton X - 100 treated bovine pericardiums] were implanted in subcutaneous layer of growing rabbits, and they were explanted about 3 months later. The mean calcium contents[%/mg of dry tissue] of 0.5% and 1.2% Triton X - 100 treated bovine pericardiums [80.0$\pm$27.1%: 78.6$\pm$47.0% respectively] were lower than those of glutaraldehyde-preserved bovine pericardiums[126.2$\pm$29.8] [p=0.05]. Thus, under the conditions of subcutaneous implantation in rabbits, Triton X - 100 was efficient in calcification mitigation.

• 생물정신의학
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• 제13권1호
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• pp.38-42
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• 2006

The case of a 66- year-old woman with coexisting idiopathic basal ganglia calcification(IBGC) and dementia was presented. The calcification was detected in bilateral basal ganglia, dentate nucleus, and thalamus by brain imaging. Serum calcium and phosphorus levels were normal. The underlying diseases of calcification of basal ganglia such as parathyroid dysfunction and other infectious, toxic, or metabolic illness were excluded. The patient had memory impairment and frontal executive dysfunction without aphasia, agnosia, apraxia, and visuospatial impairment in neuropsychological test. It suggested that the cognitive impairment might be due to the dysfunction of frontal-subcortical circuit.

• Archives of Plastic Surgery
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• 제49권3호
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• pp.360-364
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• 2022

Although capsular contracture represents one of the most important complications after breast augmentation, local inflammation and fibrosis can lead, to capsular calcification, an often-forgotten radiological sign of capsular contracture. In this article, the authors present a clinical case of breast implant calcification in an 81-year-old patient. Although this complication has been rarely described, the literature was reviewed to clarify the role of the local microenvironment in capsular contracture and calcification. At present, capsular contracture patients are classified using the conventional Baker score and the histological Wilflingseder classification. As it was not possible to consider capsular calcification when classifying our patient using the traditional scores, the authors propose an updated version of the current scale.

• Journal of Veterinary Science
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• 제21권6호
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• pp.89.1-89.6
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• 2020

Two miniature Schnauzer dogs with chronic pancreatitis were investigated. Both dogs showed systemic hypertension and increased concentrations of triglycerides and C-reactive protein. Abdominal radiography revealed cylindrical calcification in the retroperitoneum, and computed tomography (CT) showed extensive calcification of the abdominal and peripheral arteries in both dogs. Metastases and other dystrophic conditions that can cause arterial calcification were excluded based on the laboratory tests, and the dogs were diagnosed with atherosclerosis ante mortem. Atherosclerosis should be considered when extensive arterial calcification is observed on abdominal radiography or CT in miniature Schnauzers.

• 대한치과교정학회지
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• 제20권1호
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• pp.123-133
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• 1990

The work was undertaken to evaluate the calcification of the second and the third molars in skeletal Class II and III malocclusions. The differences in the calcification stages between skeletal Class II and III malocclusion were evaluated and statistically analysed from panoramic radiographs of 202 males and females ranging in age from 11 to 15 years old. The results were as follows, 1. The calcification stages of the second and the third molars were not different between the skeletal Class II and III malocclusions in each age groups of both sexes. 2. The calcification stages of lower second and third molars of the skeletal Class III malocclusion are more advanced than those of the skeletal Class II malocclusion in male. 3. The clacification stages of upper second and third molars are more advanced than those of lower second and third molars in skeletal Class II malocclusion. 4. The calcification stages of lower second and third molars are more advanced than those of upper second and third molars in skeletal Class III malocclusion.