巻号一覧
43 巻 (1999)
- 6 号 p. 963-
- 5 号 p. 781-
- 4 号 p. 635-
- 3 号 p. 391-
- 2 号 p. 193-
- 1 号 p. 1-
前身誌
43 巻, 6 号
選択された号の論文の14件中1～14を表示しています
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黒澤 正雄, 虫本 栄子, 田中 久敏, 小野田 利枝1999 年 43 巻 6 号 p. 963-969
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーIn a longitudinal observation case, it was found that morphological changes of the condylar head can be achieved by complete denture treatment.
A 60-year-old edentulous female visited our clinic with complaints of spontaneous pain around the left TMJ and limitation of mouth opening (18 mm). MRI and TMJ radiograph showed osteophyte at the left condylar head, and internal derangement with anterior displacement without reduction of the left meniscus were observed.
Through subsequent mandibular repositioning treatment of the patient, with the complete dentures applying centric relation as a treatment position, the condylar head shape and osteophyte were restored within 15 months. Clinical findings such as pain and mandibular disturbance disappeared after the initial three months following treatment, and kinesiologically, mandibular movement during open-close and chewing were improved.
Therefore, it is suggested that abnormal changes of the condylar head are closely related to occlusion. Furthermore, it can be suggested that effective mandibular repositioning can be achieved by applying complete dentures as centric relation during treatment.抄録全体を表示PDF形式でダウンロード (5541K) -
非定型性歯痛窪木 拓男, 井上 真実, 古野 勝志, 松香 芳三, 前川 賢治, 矢谷 博文, 山下 敦1999 年 43 巻 6 号 p. 970-976
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーTrauma to the peripheral nervous system occurs during common dental treatment such as root canal treatment, periodontal surgery and tooth extraction. It has been reported that non-odontogenic continuous neuropathic pain occasionally appears after such invasive dental treatments (after pulpectomy, approx. 3-6% incidence). In this report, a case of neuropathic pain condition initiated by periodontal curettage is presented. The patient was a 56-year-old female who suffered from severe burning pain in the left maxillary molar alveolar area. No abnormal findings were observed by imaging examination of the central nervous system (magnetic resonance imaging and angiography). Results of clinical and radiographic examinations of the painful area were also negative. A tricyclic antidepressant, amitriptiline hydrochloride (5-20 mg/day) was prescribed and an intra-oral stent with a capsaicin (0.025 wt%) cream was applied to compress the painful area. These therapies substantially ameliorated her pain and insomnia.抄録全体を表示PDF形式でダウンロード (2712K) -
血中カルバマゼピン濃度測定小島 俊司, 窪木 拓男, 古野 勝志, 松香 芳三, 前川 賢治, 助政 安伸, 上原 淳二, 矢谷 博文, 山下 敦1999 年 43 巻 6 号 p. 977-982
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーRecently, it has been recognized that temporomandibular disorders may include not only jawrelated musculoskeletal disorders but also orofacial pain. Further, the signs and symptoms of orofacial pain closely resemble those of the temporomandibular musculoskeletal disorders, which leads to much confusion and misdiagnosis. Therefore, it is necessary to expand the scope from temporomandibular joint disorders to orofacial pain, including neurovascular pain and neuropathic pain. In this article, a case of continuous neuropathic pain exhibiting temporomandibular joint pain is described.
The case was a 53-year-old male whose right side temporomandibular joint pain was initially diagnosed as a temporomandibular joint disorder by a general dentist and was not ameliorated by common occlusal treatment and anti-inflammatory drug therapy.
Since his pain was characterized by sudden bursts of electric-like pain, episodic neuropathic pain was doubted, carbamazepine (initially 100 mg/day, up to 800 mg/day) and bacrofen (15 mg/day) were administered, and serological monitoring of carbamazepine was performed. These medications worked very well, ameliorating his pain.抄録全体を表示PDF形式でダウンロード (2103K) -
永田 和裕, 大貫 桂輔, 小西 雅也, 小出 馨1999 年 43 巻 6 号 p. 983-994
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーThe purpose of this study was to clarify the clinical characteristic and to find the mechanism of impediment in condylar movement in case of adhesion of temporomandibular joint (TMJ) without disk displacement.
Three subjects who had adhesion of TMJ were selected from the 170 temporomandibular disorders (TMD) patients.
The subjects were reevaluated with magnetic resonance imaging (MRI) and double contrast arthrotomography was done to clarify the pathology of TMJ.
Clinical signs and symptoms were measured quantitatively, and compared with the other type of TMD.
The results were as follows:
From the result of double contrast arthrotomography, each subject had adhesion of TMJ; therefore, adhesion can be an obstacle to condyle movement.
MRI showed each TMJ had a stuck disk; therefore, estimation of the stuck disk can assist to diagnose the adhesion of TMJ.
The pain, characteristic of condyle movement and TMJ sound were quite similar to ADDwo/r. This revealed that it is difficult to distinguish TMJ adhesion without disk displacement from ADDwo/r by clinical examination only.
From the 2 cases who had clicking sound, the sound of opening and closing were near to the centric occlusion and were generated at the same place in condylar movement. Therefore those characteristic sounds can be useful to diagnose adhesion of TMJ.抄録全体を表示PDF形式でダウンロード (3907K) -
高田 秀秋, 木村 公一, 川添 尭彬1999 年 43 巻 6 号 p. 995-1002
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーFor the examination of craniomandibular disorders (CMD) patient in clinical dentistry, medical interview, measurement of mouth opening limitations and stethos of temporomandibular joint (TMJ) are generally employed. However, it is not fully understood whether these examinations are reliable to make a correct diagnosis of the CMD patients.
The purpose of the present study was to evaluate the efficacy of the examinations on the diagnosis of CMD by the 3-way cross table of the Mantel-Haenszel method and the discriminant analysis. The evaluated examinations included spontaneous pain, movement pain, dull ache, TMJ sounds, mouth opening limitations and TMJ pain. The subjects employed were 153 CMD-suspected patients who visited the Department of Prosthodontics, Osaka Dental University Hospital.
The obtained results were as follows:
1. The sex difference had no significant effects on each examination.
2. No confounding was detected in each examination.
3. Movement pain and dull pain were found helpful to make a correct diagnosis of the muscle disorders, but spontaneous pain and TMJ pain were not helpful.抄録全体を表示PDF形式でダウンロード (1740K) -
阿部 俊之, 鍋田 伸郎, 山内 貴司, 橋本 和佳, 田村 温子, 佐久間 重光, 伊藤 裕1999 年 43 巻 6 号 p. 1003-1007
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーThe purpose of this study was to evaluate the clinical strength of castable glass-ceramic (OCC, Olympus Optical Co., Japan) restorations.
On 38 patients, from February 8, 1994 to December 19, 1996 at Aichi-Gakuin University Dental Hospital, 154 castable glass-ceramic restorations were cemented.
These restorations were reexamined February 1998 and an analysis of fractures in the restorations was performed. Observed fractures as well as cracking or chipping and 22.7% of the restorations were considered fractured, and the longest survival time until now has been 48 months. The Kaplan-Meier survival probability calculated for these restorations was 0.86 using Panavia 21 and 0.90 using Panavia EX after a time interval of 24 months, and 0.66 using Panavia 21 and 0.82 using Panavia EX after a time interval of 36 months. There were no significant differences in the survival between the two cements.
It was then con cluded that castable glass-ceramic restorations are suitable for clinical use, although some problems remain, especially with the successful lifetime of the castable glass-ceramics.抄録全体を表示PDF形式でダウンロード (3108K) -
オールセラミック材について茂呂 祐康, 齊藤 仁弘, 田村 好之, 五十嵐 孝義, 西山 實1999 年 43 巻 6 号 p. 1008-1015
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーThis study was conducted to investigate the thermal properties (thermal diffusivity, specific thermal capacity and thermal conductivity) of all ceramic restorative materials. Measurement of thermal properties of IPS Empress®, DiCOR® and adhesive resin cement Variolink II were performed by the Xenon flash method. The results obtained were as follows. Thermal diffusivity (×10-2cm2s-1) was 0.372-0.423 for IPS Empress®, 0.614 for DiCOR® and 0.191-0.193 for Variolink. Specific thermal capacity (Jg-1K-1) ranged from 0.695 to 0.872 for IPS Empress®, 1.119 for DiCOR® and 0.733-4.114 for Variolink. Thermal conductivity (Wm-1K-1) was 0.644-0.770 for IPS Empress®, 1.721 for DiCOR® and 0.297-0.475 for Variolink. Thermal conductivity of IPS Empress® was found to be less than that of human enamel, while that of DiCOR® was greater than that of human enamel. Thermal conductivity of Variolink was smaller than those of human enamel and dentin.
The above results indicated that IPS Empress® had greater thermal insulation capability than human enamel and dentin and that DiCOR® had less.抄録全体を表示PDF形式でダウンロード (1412K) -
小泉 寛恭, 吉田 剛, 五十嵐 孝義, 齊藤 仁弘, 西山 實1999 年 43 巻 6 号 p. 1016-1022
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーTo evaluate toothbrush abrasion of high filler containing resin for crown and bridge, water absorption, volume of abrasion, abrasion resistance and surface roughness were determined. The results were as follows:
1. In water, absorption was increased in the order of Estenia enamel (EE), Estenia dentin (ED), Herculite XRV enamel (XE), Herculite XRV dentin (XD), ArtGlass enamel (AE) and ArtGlass dentin (AD).
2. The amount of abrasion was increased in the order of EE, AE and XE (Enamel Body), ED, XD and AD (Dentin Body).
3. In evaluation, abrasion resistance was increased in the order of EE, ED, AE, XD, XE and AD.
4. The surface roughness at the end of the experiment was increased in the order of XE, XD, ED, AD, EE and AE.抄録全体を表示PDF形式でダウンロード (3303K) -
中村 隆志, 藤川 ファン, 斎藤 脩, 丸山 剛郎1999 年 43 巻 6 号 p. 1023-1027
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーThe purpose of this study was to evaluate the threshold for perceptibility of small color differences in all-ceramic crowns using staining-technique. The CIE L*a*b*colorimetric system was used for the evaluation of the relationship between instrumentally measured color differences (ΔE) and human observer responsein ceramic specimens. The ceramic specimens were fabricated by staining-technique using Dicor and Empress. Twelve students, 12 young dentists with an average of2.2 years in practice and 12 veteran dentists with an average of 9.8 years in practice were used as observers. The results showed the veteran dentists were moresensitive for small color differences of ceramic specimens than the students or young dentists. Thresholds of perceptibility were 2.0 ΔE units for most subjects.抄録全体を表示PDF形式でダウンロード (999K) -
リングの加熱開始時期の影響塩沢 育己, 荒井 由紀, 佐藤 尚弘1999 年 43 巻 6 号 p. 1028-1033
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーThe usage of a newly-developed quick-heating gypsum-bonded investment material is becoming more popular in daily laboratory work because of the shorter time required from investing to casting.
Since setting expansion of this investment material stops when heating begins, the timing of when to commence heating is very important for the accuracy of cast crowns.
The purpose of this study was toclarify the freedom of changing the timing regarding the fitting accuracy of cast crowns.
The conclusions were as follows:
1. When heating commenced within 2.5 hours of investing, the accuracy of the crowns fabricated with this quick-heating investment material (SHOFU Cristobalite PF) was as good as those fabricated with conventional gypsum-bonded investment.
2. If heating commenced more than 2.5 hours after investing, the cast crowns showed a slightly larger vertical seating discrepancy, however, this was still within the range of clinical acceptability.
3. In spite of the fact that setting expansion of this quick-heating investment material stopped 2 hours after investing, casting inaccuracy continued to change. Thus it was suggested that anisotropic mold expansion resulting from setting and thermal expansion of the investment affected casting accuracy.抄録全体を表示PDF形式でダウンロード (1670K) -
飯田 克実1999 年 43 巻 6 号 p. 1034-1042
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーIn this study, to reconstruct the jaw defect site, a hybrid substance consistingof Polyelectrolyte Complex (PEC) and Hydroxyapatite (HA) was prepared, and a prosthesis with this substance was fabricated in the mandible of adult dogs. Two types of HA with 500 μm or 1, 000 μm in particle diameter and a pore rate of 35% or more were used. The animals consisted of 12 male Beagles. As for PEC, polycation (S-110) and polyanion (S-chitin 140), which show favorable cellular adhesiveness and cell proliferation, were used. The rate and amount of bone formation in the PEC-HA Hybrid group were significantly higher than those in the controlgroup, the PEC group and the granule group.
The results suggested that PEC-HAHybrid can be clinically used as a biomaterial that may shorten the period required for bone formation and increase the amount of neogenetic bone.抄録全体を表示PDF形式でダウンロード (6067K) -
椎名 幸恵1999 年 43 巻 6 号 p. 1043-1055
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーThe quality of saliva is an important factor in the retention and stability of the denture. Recently, the composition of mixed saliva was analyzed by capillary electrophoresis, which permits various analysis depending on the selection of the electrophoretic condition. First, electrophoretic conditions were evaluated, then properties of mixed saliva were studied according to age, and components that show more notable changes with aging were identified. Differences in the composition of mixed saliva between healthy subjects and diabetic patients aged 60 years and above were also analyzed.
Mixed saliva was sampled from 34 healthy subjects, 8 aged 10 years or less, 10 in their 20s, 10 in their 30s, and 6 aged 60years and above. Mixed saliva was sampled also from 17 patients with diabetes mellitus, which was insulin dependent in 11 and non-insulin dependent in 6.
Thirty-two peaks were detected in mixed saliva. The frequency of the appearance of peaks showed no male-female difference, but there were some differences according to age. The concentrations of the peaks were lower in the diabetic patients than in the healthy subjects of the same age level. Of the 32 peaks, those of lysozyme and lactoferrin, which are related to the antibacterial activity, and uric acid, whose serum concentration is altered in diabetic patients, were identified.
The lactoferrin did not appear in mixed saliva of 60 years and above healthy subjects using denture, but it appeared in mixed saliva of diabetic patients with low frequency of appearance and low concentration.
The concentration of lysozyme and uric acid were slightly higher in the healthy subjects with age, although the differences were not significant.抄録全体を表示PDF形式でダウンロード (2442K) -
システムの精度と臨床応用例河野 勇治, 山縣 健佑, 下平 修, 山縣 徹哉, 七田 俊晴1999 年 43 巻 6 号 p. 1056-1066
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーWe developed a kinematic method of calculating virtual points that could not be observed directly, such as condyle, molars, and the body of mandible, utilizing a motion capture system (Vicon 370, Oxford Metrics). In this study, the accuracy of the system was examined and kinematic data from test subjects were presented.
Methods: Retro-reflective markers were placed on digital vernier calipers (Digimatic Caliper: CD-15 C, Mitutoyo). In addition, marker frames on which 3 markers were arranged spatially were attached to the slider of the calipers to provide a measured value of virtual points that were indicated by a stick on which 2 markers were aligned (pointers). Markers on the calipers were located and automatically tracked using six video cameras (V-133, nac) while the slider was displaced within the range of 150 mm in random directions and intervals. The video data were collected with a datastation and the three-dimensional (3 D) coordinated data were transferred to a computer. Measurements of virtual points, which were calculated from displacement of the marker frame attached to the slider, were combined with the video data of the markers.
Results: High linearity was observed both in markers and virtual points during displacement of the slider. Error that was calculated from discrepancy between measurements on the calipers and the Vicon were 0.11%(marker points) and 0.35%(virtual points) respectively.抄録全体を表示PDF形式でダウンロード (5300K) -
第4報最大開口の影響山村 理, 吉田 健, 斎藤 繁徳, 羽田 詩子, 田中 隆雄, 市橋 宗篤, 中村 和敬, 丸井 義仁, 藤井 輝久1999 年 43 巻 6 号 p. 1067-1070
発行日: 1999/12/10
公開日: 2010/08/10
ジャーナル フリーMouth opening was necessary for dental treatment, but the wide mouth opening for a long time caused some troubles, for example, muscles pain, temporomandibular joint (TMJ) pain and changes of mandibular position. This time, the mental effects were observed by the opening mouth from the electroencephalographic (EEG) topography. As a result, there was significance while opening the mouth and just after closing the mouth on the β wave.抄録全体を表示PDF形式でダウンロード (1234K)
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