巻号一覧
58 巻 (2009)
- 4 号 p. 135-
- 3 号 p. 89-
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58 巻, 3 号
選択された号の論文の5件中1～5を表示しています
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原著
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小川 倫子, 足立 忠文, 山崎 勝己, 久保田 健稔, 濱田 傑2009 年 58 巻 3 号 p. 89-96
発行日: 2009/07/10
公開日: 2010/11/12
ジャーナル フリーThe objective of this study was to investigate morphological changes and sexual differences of the maxillary sinus (MS) with particular emphasis on the period following the end of its growth. We analyzed panoramic radiographs obtained from 502 patients aged between 11 and 79 years old to evaluate the relationship between the floor line of MS and the apexes of the maxillary posterior teeth according to Handa's classification. In 1004 sides, the percentages were as follows type I = 37.5%, type II = 18.0%, type III = 26.2%, type IV = 12.4% and type V = 5.9%. The proportions of each type were identical between right and left sides. The proportions of type II, IV and V were similar in each age group. The proportion of type I, however, gradually increased toward the higher age group (10-20 years = 25.0%; 60-70 years = 62.1%) and the proportion of type III decreased conversely (10-20 years = 44.0%; 60-70 years = 7.3%). The relative ratio of type I to type III was the smallest in the second decade for both genders and gradually increased toward the higher age group. In females the ratio in the fourth decade was significantly different from that of the second decade, however, in males the ratio was not significantly different until the fifth decade. Our data suggest that MS might have age dependent morphological changes after the end of maturation and also, this morphological change in females might be much earlier than that in males.抄録全体を表示PDF形式でダウンロード (505K) -
富岡 寛文, 原田 浩之, 岡田 憲彦, 小村 健2009 年 58 巻 3 号 p. 97-102
発行日: 2009/07/10
公開日: 2010/11/12
ジャーナル フリーWe evaluated the clinicopathological characteristics of 12 granular cell tumors arising in the oral cavity between November 1994 and June 2008.
Patients ranged in age from 21 to 65 years (mean, 41.9 years). Four patients were male, and 8 were female. Ten tumors were found in the tongue, 1 in the buccal mucosa, and 1 in the lower gum. The tumor was solitary in all cases. Symptoms comprised nodule formation in 10 cases, and contact pain in 2 cases. Local excision was performed in all patients.
Histopathologically, there was no evidence of encapsulation in any tumors. The overlying mucosa of the tumor showed pseudoepitheliomatous hyperplasia in 6 cases. Immunohistochemical examination demonstrated that tumor cells were positive for S-100 protein and NSE, and negative for actin (muscle).
All patients have no evidence of recurrence postoperatively.抄録全体を表示PDF形式でダウンロード (1187K) -
外山 三智雄, 土持 眞2009 年 58 巻 3 号 p. 103-113
発行日: 2009/07/10
公開日: 2010/11/12
ジャーナル フリーThe aim of this study was to evaluate bone metabolic condition in imaging findings of temporomandibular joint disorders (TMD) using bone scintigraphy, which has a high sensitivity to bone metabolism, and two bone metabolic markers: 1) pyridinoline cross-linked carboxy-terminal telopeptide of type I collagen (ICTP) and 2) carboxy-terminal propeptide of type I procollagen (PICP) which influence both the formation and absorption of bone.
The subjects were 92 patients (18 male, 74 female, mean age 40.3 ± 18.2 years of age, 112 TMJs) with TMD who underwent bone scintigraphy using 99mTc-MDP and/or had their concentration of bone metabolic markers (ICTP and PICP) measured in synovial lavage fluid by a radioimmunoassay kit using competitive inhibition. Synovial lavage fluid was a mixture of synovial fluid and physiological saline, obtained by irrigation of the superior joint compartment of TMD patients. Sixteen female controls (mean age 42.7 ± 15.7 years of age) with no symptoms of TMD, but who had other diseases and who underwent bone scintigraphy, were selected. The position and configuration of the articular disk of patients with TMD were diagnosed by MRI and/or double contrastarthrography. All patients were examined for morphological bone change of the TMJ by tomography and were evaluated using both a positive ratio and an accumulation ratio (radioactivity counts of TMJ region/radioactivity counts of neck soft tissue region) by bone scintigraphy.
We obtained the following results and conclusions. All the temporomandibular joints with morphological bone change showed an increase in accumulation by bone scintigraphy. Some of the temporomandibular joints without morphological bone change also showed an increase in accumulation. There were no statistically significant differences between disk position, disk configuration and accumulation ratio. Most of the temporomandibular joints, which had an increase in accumulation, showed abnormal findings of the disk. The results of the accumulation ratio and bone metabolic marker in synovial fluid were similar. A strong correlation between both was recognized. It was considered that bone scintigraphy is a useful imaging technique for evaluating bone metabolism of TMD. The analysis of bone metabolic markers is a useful way to obtain information on the bone metabolic condition of TMD, when synovial fluid is collected at the time of surgical treatment.抄録全体を表示PDF形式でダウンロード (998K) -
木村 勝年, 山口 晃, 柴崎 浩一2009 年 58 巻 3 号 p. 114-119
発行日: 2009/07/10
公開日: 2010/11/12
ジャーナル フリーHyperuricemia has increased among middle-aged people due to changes in eating habits and lifestyle. In this study, we examined the clinical significance of uric acid in saliva after investigating the correlation of uric acid concentrations in saliva and serum. The role of uric acid in odontolithiasis was also studied by analyzing the dental calculus. The 197 subjects in the study were outpatients at our hospital or healthy volunteers. For treatment of hyperuricemia, 28 patients had taken benzbromarone and 12 had taken allopurinol. Measurement of uric acid was performed enzymatically. Dental calculus was analyzed using HPLC in 26 patients. The uric acid concentration in saliva and serum showed a significant correlation (r = 0.265, p < 0.01) in all 197 subjects and a more significant correlation (r = 0.517, p < 0.001) in 157 subjects after exclusion of those treated with urate-lowering drugs. In 26 of the 28 subjects (92.9%) treated with benzbromarone, the salivary uric acid concentration was higher than the serum concentration. The concentrations of uric acid in saliva and serum did not show a significant diurnal variation. Uric acid was present in the dental calculus in patients who had not undergone prolonged mouth cleaning. In conclusion, salivary uric acid was significantly correlated with serum uric acid concentration, which suggests that saliva plays an important role in uric acid excretion, and benzbromarone may participate in the mechanism of uric acid excretion in salivary glands. In the absence of prolonged mouth cleaning, uric acid was taken into the dental calculus.抄録全体を表示PDF形式でダウンロード (862K) -
喜屋武 健, 狩野 岳史, 新垣 敬一, 猪妻 あや, 翁長 綾花, 砂川 元2009 年 58 巻 3 号 p. 120-126
発行日: 2009/07/10
公開日: 2010/11/12
ジャーナル フリーThe purpose of this study was to investigate the features of teeth traumatized due to sports accidents, because few detailed studies could be found in the literature. We reviewed our institution's experience with sports injuries over a 22-year period. A total of 62 patients were identified and medical records were analyzed for patient demographics and pattern of injuries.
The male to female ratio was 7.9 to 1, and the majority of patients were between 13 and 18 years old. The most frequent type of tooth trauma was subluxation. The most common sport responsible for injury was baseball, followed by basketball. The main cause of patient injuries in baseball was the ball, accounting for 76.0% of the total. In basketball, the main cause was collisions, accounting for 72.7% of the total.抄録全体を表示PDF形式でダウンロード (806K)
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