日本補綴歯科学会雑誌

卵巣摘出ラットにおける下顎骨実験的骨欠損の修復に関する研究

秋馬秀成, 坂口邦彦, 越智守生, 廣瀬由紀人, 賀来亨

2000 年 44 巻 1 号 p. 1-8
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.1

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The incidence of osteoporosis has been increasing with the increase in the number of elderly. Osteoporosis is a disease characterized by low bone mineral density (BMD), and the age of patients who require dental implant matches the age of patients with osteoporosis.
The influence of osteoporosis on the healing of an experimental bone defect in the mandible of rats was studied. Twenty-six-week-old female Sprague-Dawley rats underwent ovariectomy or a sham operation. Eight weeks after the operation, experimental bone defect was prepared in the left mandible of all rats by the guided bone regeneration (GBR) method. The left mandible of the rats was extracted at 2, 4 or 6 weeks after the operation, and the degree of bone healing in the experimental bone defect was evaluated by soft X-ray photography of the extracted left mandible followed by image analysis.
It was found that osteoporosis induced by ovariectomy has a negligible effect on the healing of experimental bone defect in the mandible. The result suggested that osteoporosis of the cortical area of the mandible is slow and less as compared with that of other long bones.

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骨補填材を目的としたCM-キチンーコハク酸含有型リン酸カルシウムセメントの開発

横山敦郎, 山本悟, 小松原浩実, 武石篤典, 川崎貴生, 向後隆男, 中須正議

2000 年 44 巻 1 号 p. 9-18
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.9

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The purpose of this study was to develop a new calcium phosphate cement as a bonesubstitute. The cement consisted of liquid and powder components. The powder component consisted of α-tricalcium phosphate, tetracalcium phosphate and dicalcium phosphate dihydrate. Two types of liquid component were used; one contained carboxymethyl-chitin, succinic acid and disodium hydrogen phosphate solution (SAcement), and the other distilled water (DW cement). The mechanical properties and biocompatibility of the two cements were investigated. After combining the powder and liquid components, the SA cement was found to develop a “putty-like” consistency that could be molded into any desired shape. However, the DW cement could not be molded. The compressive strength was higher in the SA cement than in the DW cement. Histological examination showed that inflammation around the DW cement grafted on the subcutaneous tissue in rats was a little less than that around the SA cement at 1 week after grafting. At 4 weeks, the SA cement grafted on the bone had bound to the bone as efficiently as the DW cement. The results suggested that this new calcium phosphate cement using succinic acid and carboxymethyl-chitin in the liquid component is suitable as a bone substitute.

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α-TCP-コラーゲン材を用いた歯槽骨形成に関する実験的研究

村岡正規

2000 年 44 巻 1 号 p. 19-24
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.19

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This experimental study was conducted to investigate bone tissue reaction of apatite-collagen conjugated sponge in the healing process of bone. The bone formation in relation with microvascular construction was observed with a scanning electron microscope.
Absorbable α-tricalcium phosphate-(α-TCP), α-TCP-collagen conjugated sponge having hydration activity with type I collagen gel in a short time under physiological condition and α-TCP processed with tannic acid were employed as experimental materials, and Japanese monkeys were employed as experimental animals. Artificial bone defects were made in bilateral lower premolar and molar region of the animals, and the experimental materials were inserted therein. The animals were sacrificed 2, 4 and 8 weeks after operation. Acryl plastic was injected via the common carotid arteries, utilizing the plastic injection method to prepare a microcast around the experimental region. The injected material was coated with gold for the employment of a scanning electron microscope.
α-TCP processed with tannic acid promoted dense capillaries and markedly enhanced bone healing. The results indicated that the application of this material in bone defects can be useful for promoting alveolar bone formation.

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陽極酸化と水熱処理で形成されるチタン表面のアパタイト皮膜に対する酸化電圧の影響

小笠原礼久

2000 年 44 巻 1 号 p. 25-33
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.25

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Excellent biocompatibility has been reported for the titanium implants with modified surface by deposition of hydroxyapatite crystal though the combined treatments of anodic oxidation and hydrothermal heating (SA treatment). The purpose of this study was to determine an optimal voltage load in the anodic oxidation process for preparing an oxidized surface appropriate to the desired modification. Tensile adhesion tests of anodically oxidized titanium rod at voltages of 200-400 V were performed when it was bonded to a non oxidized titanium rod with the epoxy resin adhesive. Further the push-out tests of the implant-bone specimens excised from the femur of rabbits after embedding the titanium implant for 4 weeks were conducted with the tensile testing machine. The fractured surfaces were observed by scanning electron microscope (SEM). As a result, below 350 V oxidation brought about the tensile bond strength of 37 MPa without any delamination of the SA film, whereas 400 V oxidation decreased the strength to 32 MPa. The push-out test and SEM observation revealed that increase in the quantity of hydroxyapatite crystal deposition on the surface with the voltage brought about higher push-out strength and more new bone formation. These results suggested that 350 V oxidation would be very suitable for obtaining the desired implant surface.

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スクリュー固定式IMZインプラント上部構造体におけるIMCの効果

不適合付与の場合

宇野一葉, 畑好昭

2000 年 44 巻 1 号 p. 34-42
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.34

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A screw-retained prosthesis is frequently used as an implant prosthesis. However, the superstructure is screwed to its abutments, stress is produced in bone around the implant or in the superstructure, and if incompatibility exists between them, the stress becomes larger. The objective of this study was to evaluate the stress buffer function of the IMC (intramobile connector) on a screw retained superstructure with vertical incompatibility. Two specimens were prepared for this experiment: In the 1 st specimen, three IMZ implants were embedded perpendicularly to the upper surface of the PMMA block in a straight line. In the 2 nd specimen, three implants were embedded in the same way as the 1 st but one terminal implant inclined 10 degrees mesially to the longitudinal axes of other implants. Strain produced on the block surface around each implant was measured with a strain gauge, because a torque wrench was screwed to the superstructure with vertical incompatibility (50μm, 100μm) to abutments. The dimensional compensation function of IMC was marked with 50μm incompatibility, but its function was decreased, and moreover IMC was permanently distorted with 100μm incompatibility. The effect of IMC in specimen 1 was similar to specimen 2. The incompatibility condition produced strain with IMC was less than that without IMC. Strain tended to be larger in the central implant.

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粘膜調整による義歯床下粘膜の生理的回復と被圧変位量の経日的変化

鈴木みどり

2000 年 44 巻 1 号 p. 43-52
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.43

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The purpose of this study was to investigate the physiological recovery for distorted tissues with tissue conditioners. The changes of pressure-displacement in the denture-supporting tissues were measured using a new device with strain gauges placed on the cantilever during tissue conditioning.
To deform the underlying soft tissues, experimental dentures were fitted to six subjects with missing maxillary or mandibular first molar. Recovery of the distorted tissues was performed by one of two methods. In the first method, experimental dentures were removed from the mouth. In the second, a tissue conditioning treatment was used. Then the recovery effectiveness of the two methods was compared with measurement of pressure-displacement.
The conclusions were as follows:
1. By the calibration tests using the new device, it was confirmed that pressure-displacement could be accurately measured.
2. The effectiveness of tissue conditioning could be quantitatively estimated using the new device.
3. Distorted tissues were recovered with tissue conditioning, and the pressure-displacement became uniform.
4. There were no significant differences (p>0.05) of pressure-displacement between the tissue conditioning and removal of the experimental dentures.

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支台装置と側方偏心咬合接触が支台歯負担と義歯変位に及ぼす影響

第2報 3歯残存

三浦美文, 齋藤正恭, 野谷健治, 深沢亨, 高橋典弘, 佐橋祐美, 川崎貴生

2000 年 44 巻 1 号 p. 53-64
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.53

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For the stability of removable partial dentures, both the occlusal relationship and the design of the denture are important.
A mandibular simulation model with three remaining teeth (Nos. 22, 27, and 31 or Nos. 22, 27 and 31; universal tooth numbering system) was used in this study.
Occlusal contact in the lateral eccentric jaw relation was varied, and the stress distribution of abutment teeth and displacement of the denture base were examined.
The results were as follows:
The occlusal contact in the lateral eccentric jaw relation rather than kind of retainer seemed to influence the stress distribution of abutment teeth and displacement of the denture base.
In the case of bilateral balanced occlusion, there was no obvious difference between an Akers clasp and a cone-telescopic crown.
Denture stability could be maintained by group functioned occlusion as well as by bilateral balanced occlusion, depending on the pattern of the remaining teeth.
The results suggested that in the case of an asymmetrical pattern of the remaining teeth, occlusal contact in the right and left lateral eccentric jaw relation must be changed.

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義歯修理が床の動態に与える影響について

豊田實, 森田望之, 今井崇隆, 高橋晃子

2000 年 44 巻 1 号 p. 65-70
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.65

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In the lower denture, fracture occurs most frequently in the medial area of its base. Morphologically, stress is apt to concentrate on this area. Since its cross-sectional area is small, once broken, there is good possibility it will break after repair.
In the present study, the lower dentures were broken in their median part and repaired, and the effects of the repair on the dynamic characteristics of the denture base were measured in the breaking test and modal analysis.
The results were as follows:
1. The breaking test showed a remarkable drop in the value for the breaking point after repair. Evenwith the use of reinforcing wires, the strength was not restored to what it was before breakage.
2. The modal analysis revealed that the repair of the denture not only by joining the breaking sections with self-curing acrylic resin but also by relining the denture base might be necessary for recovering the dynamic characteristics of denture base before breakage.

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電解水の義歯床用レジンへの影響

岸井次郎, 岩堀正俊, 山内六男, 堺誠, 長澤亨

2000 年 44 巻 1 号 p. 71-79
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.71

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Recently, electrolyzed water (strong acid electrolyzed water and strong alkaline electrolyzed water) has been used for cleaning of the denture.
In this study, the effect of electrolyzed water on the denture base resin, relining materials and dental engineering plastics was investigated.
Three commercially available conventional denture base resin, five denture relining materials and three dental engineering plastics were immersed in electrolyzed water and distilled water for two weeks. Knoop hardness, surface roughness, color and gloss were measured before immersion and 1 and 2 weeks after immersion.
The color changes due to immersion of the denture relining materials increased significantly in all solutions. The color change due to soaking dental engineering plastic in strong acid electrolyzed water was slightly more.
The surface roughness and gloss did not show a significant change in any solution. The Knoop hardness of the denture relining materials decreased after immersion in strong alkaline electrolyzed water.
These results suggested that there are few effects on the property of the denture base resin and that the electrolyzed water can be apply to the cleaning of the denture.

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電解水のレジン人工歯への影響

岸井次郎, 山内六男, 岩堀正俊, 岡本武志, 長澤亨

2000 年 44 巻 1 号 p. 80-85
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.80

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The purpose of this study was to investigate the effect of the electrolyzed water (strong acid electrolyzed water and strong alkaline electrolyzed water) on artificial resin teeth.
Four hard resin, one acrylic resin and poly sulfone resin artificial teeth were immersed in electrolyzed water and distilled water for two weeks. Knoop hardness, surface roughness, weight and color change were measured before immersion and 1 and 2 weeks after immersion.
Strong alkaline electrolyzed water changed the color of the artificial resin teeth more than distilled water. However, strong acid electrolyzed water had the same effect as distilled water on color of the artificial resin teeth. Knoop hardness, surface roughness, and weight were not affected by immersion in electrolyzed water and distilled water.
These results suggested that electrolyzed water dose not effect artificial resin teeth.

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消毒液が義歯床用レジンの色調安定性と表面粗さに及ぼす影響について

反町晋康, 清水公夫, 森田修己

2000 年 44 巻 1 号 p. 86-93
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.86

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The influence of immersion in a disinfectant on the color change and the surface roughness was investigated using six kinds of denture base resins; Acron (AC), Tokusorebase (TK), Mild rebaron (MR), Parapress vario (PA), Unifast II (UF) and Traid VLC (TR). The disinfectants used for immersion were 0.5% sodium hypochlorite (SH), 0.025% benzalkonium chloride (BC), 10% povidone iodine (PI) and 70% ethanol (ET). The results were as follows:
1. Color change
1) Immersion in SH and BC did not affect the color change of any resin.
2) The color change of TK and MR was changed by immersing in PI, but not that of AC, UF and TR.
3) The color change of UF was changed by immersing in ET, but not that of TK, MR, PA and TR.
2. Surface roughness
1) The surface roughness of all resins was not changed by immersing in SH, BC and PI.
2) The surface roughness of TK, MR, PA and UF increased by immersing in ET, but that of AC and TR was not changed.

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高齢者における上顎無歯顎印象採得時の血圧変動について

田中栄士, 小野圭昭, 原佳代子, 権田悦通

2000 年 44 巻 1 号 p. 94-99
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.94

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Seven elderly edentulous patients without cardiovascular disorders were used in this study, and changes in the blood pressure were examined during impression taking for complete dentures. Blood pressure was measured continuously both during border molding and during final impression using a uninvasive continuous blood pressure monitoring system based on arterial tonometry.
1. During border molding, systolic blood pressure increased in some subjects (elevation group) but not in others (non-elevation group).
2. There was no difference in changes in the blood pressure among various sites of border molding.
3. Elevation of the blood pressure was greater in all subjects during final impression than during border molding. The mean increasing rate was 24.1%.
It was suggested that impression taking greatly affects blood pressure in elderly edentulous patients.

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チタンの切削に関する研究

チタン鋳造冠の除去についての検討

吉田展也, 柳沢勲, 白井やよい, 末永弘卓, 加藤崇, 嶋倉道郎

2000 年 44 巻 1 号 p. 100-105
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.100

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The purpose of this study was to clarify the problem in case of removal of the titanium crown from the abutment tooth. The specimens in the shape of simplified full cast crown were produced with pure titanium and Ag-Pd alloy. The specimens were cut using dental turbine with carbide burr, which was used 12 consecutive times. The required time to cut the specimen was measured, and the difference of materials and thickness of specimens were evaluated. Furthermore, the section of burr that was used 12 consecutive times was observed.
The results were as follows:
1. The required time to cut the titanium crown was longer than that of the Ag-Pd alloy crown.
2. In case of cutting the titanium crown, the damage to the carbide burr was extensive compared with Au-Ag-Pd alloy of the same thickness.
From the above, it was suggested that a device for reducing the thickness of the crown was necessary to produce the titanium crown.

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臼歯部ハイブリッドセラミックスブリッジの三次元光弾性実験による応力解析

浅田俊之, 新谷明喜, 横塚繁雄

2000 年 44 巻 1 号 p. 106-114
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.106

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Hybrid ceramics meet high esthetic requirements. However, more information on application to the bridge still needed. This three-dimensional photoelastic study was conducted to analyze the stress distribution of hybrid ceramics bridge.
Two types of bridge were compared. Type I was consisted of hybrid ceramics alone, while Type II had a metal frame inside. The bridge models were cut into three parts, buccal, central and lingual. The results were as follows:
1. Maximum tensile stress appeared in the distal connector in Type I.
2. Tensile stress appeared in the distal connector decreased in Type II.
3. In both types, compressive stress closely appeared in both connectors.
This means that the connectors have complicated distributions and different types of stress.
4. In all three parts, the gingival area showed higher maximum shearing stress concentration than in the occlusal surface where loading applied.

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ステイニング法における材料の厚さ, 背景およびセメント色調の影響

中村隆志, 藤川ファン, 斎藤脩, 丸山剛郎

2000 年 44 巻 1 号 p. 115-121
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.115

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The purpose of this study was to evaluate the influence of ceramic thickness, background and cement color on the color of all-ceramic crowns using the staining technique. Ceramic specimens of three different thicknesses (1.0, 1.5, 2.0 mm) were fabricated with Dicor, Empress T2, Empress O1 and Empress O2 by using surface staining. Three backgrounds (porcelain, Type IV gold alloy and gold-silver-palladium alloy) and two resin cements (universal and brown color) were used for the study. The color of ceramic specimens was measured with a small area colorimeter and evaluated by the CIE L*a*b* color system.
Ceramic thickness had the greatest influence on the color of ceramic specimens. Both lightness and yellowness decreased as the ceramic thickness increased. The background color had an influence on the lightness and yellowness of ceramic specimens when the ceramic specimens were 1.0 mm in thickness. However, cement color had little influence on the color of ceramic specimens. These results suggested that both ceramic thickness and background color are important factors for reproducing natural tooth color by using the staining technique.

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磁性アタッチメント用キーパーと金銀パラジウム合金との鋳接

第1報係留温度の影響

浅野彰夫, 堺誠, 都尾元宣, 山内六男, 長澤亨

2000 年 44 巻 1 号 p. 122-128
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.122

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A cast-soldering method was used for the keepers of magnetic attachments. However, there have been few studies concerning the effects of the cast-soldering method on keepers. In this study, this cast-soldering method was investigated by changing the mold temperature.
Two commercially available keepers and a 12% Au-Ag-Pd casting alloy were used. Cast-soldering was performed at mold temperatures of 600, 700 and 800°C for 30 minutes. After cast-soldering, the interface between the keeper and the casting alloy was observed by light microscopy and scanning electron microscopy and analyzed with an X-ray electron microprobe.
Microscopic observation revealed a black layer between the keeper and the casting alloy in all specimens. Scanning electron microscopy and X-ray electron microprobe analysis indicated that the black layer was composed of an oxidation layer with Fe and a gap. The black layer was larger at lower mold temperatures.
The findings suggested that it is important to keep the mold at a proper temperature.

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咀嚼時の舌運動と下顎運動の協調性に関する研究

服部真幸, 越野寿, 平井敏博

2000 年 44 巻 1 号 p. 129-137
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.129

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To elucidate the relationship between tongue motor behavior and mandibular movement in chewing, the tongue and mandibular movements of 8 healthy, fully dentate males were analyzed with and without an experimental lingual plate (ELP) while chewing 3 grams of peanuts. Moreover, masticatory efficiency was evaluated by the sieving method. Tongue and mandibular movements were recorded simultaneously by using ultrasound diagnostic equipment and MKG. From simultaneous recordings, all the chewing strokes from the first to the last were measured by a digitizer and calculated for the cycle time of tongue and mandibular movement.
The results were as follows:(1) The masticatory efficiency immediately after ELP insertion decreased significantly compared to that of before insertion of ELP in all subjects (p<0.01).(2) The cycle times of tongue and the mandibular movements were significantly longer compared to those of before insertion of ELP in all subjects (p<0.01).(3) The masticatory efficiency, cycle time of tongue and the mandibular movements with insertion of ELP gradually recovered to the levels prior to insertion of ELP.(4) The correlation coefficient between the cycle time of tongue movement and that of mandibular movement was statistically significant (p<0.01).
It was suggested that the lack of harmony in tongue and mandibular movements causes decreased masticatory efficiency.

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咀嚼運動の機能的分析

下顎切歯点の運動速度の定量的評価

佐藤泰彦, 志賀博, 小林義典

2000 年 44 巻 1 号 p. 138-146
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.138

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In order to clarify whether the velocity of chewing movement would be a reliable indicator for objective evaluation of masticatory function, the chewing movement velocity of the mandibularincisal points of 100 normal subjects and 100 craniomandibular disorders (CMD) were analyzed. The results were as follows:
1. For the maximum velocity of opening and closing, individual differences were observed in both groups. The average maximum velocities were 149.4 mm/sec (opening) and 149.6mm/sec (closing) in the normal subject group and 109.7mm/sec (opening) and 106.0 mm/sec (closing) in the CMD patient group, and significant differences were found between the two groups.
2. For the normal subject group there was a highly significant positive correlation between the amount of opening and the maximum velocity of opening and closing.
3. The average SD/OD (standard deviation/opening distance) of the velocity component were 0.78 (opening) and 0.77 (closing) for the normal subject group and 1.14 (opening) and 1.00 (closing) for the CMD patient group, and significant differences were found between the two groups.
4. From the above, it was concluded that the maximum chewing velocity and the SD/OD of the velocity component of opening and closing were highly effective indicators to objectively evaluate themasticator function.

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咀嚼運動経路の代表的な2種類のパターン間で比較した下顎運動と咀嚼能率

岩波行紀, 志賀博, 小林義典

2000 年 44 巻 1 号 p. 147-155
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.147

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In order to clarify the functional differences between the 2 typical path patterns (I and III) in normal subjects, the masticatory efficiency and the function of the mandibular movement during gumi-jelly chewing were compared quantitatively between pattern I (20 subjects: smooth opening toward working side, and convex closing) and pattern III (20 subjects: opening toward working side after initially toward nonworking side, and convex closing). The results were as follows:
1. For the amount of opening, no significant difference was found between the two patterns, though that of pattern I group was slightly larger.
2. Pattern III group had a larger masticatory width than pattern I group, and a significant difference was found between the two groups.
3. Pattern III group had a longer cycle time than pattern I group, and a significant difference was found between the two groups.
4. Pattern I had a larger amount of glucose secretion than pattern III group, and a significant difference was found between the two groups.
5. From the above, it was concluded that a functional difference was observed between the two patterns and that pattern I had a superior mandibular function and masticatory efficiency than pattern III.

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顎機能障害における自発耳音響放射の出現様相

菊池康視, 大久保敦子, 松本敏彦

2000 年 44 巻 1 号 p. 156-159
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.156

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The purpose of this study was to investigate the possible connection between temporomandibular disorders (TMD) and cochlear nerve function. In this study, twenty healthy subjects and twenty TMD subjects with no otologic symptoms were selected and normality of conductive hearing function of middle ear transmission system was confirmed by impedance audiometry (Tympanograms and auditory stapedius reflexes) utilizing impedance meter (J. M. Morita Co.). Then, spontaneous otoacoustic emissions (SOAEs) were measured and analyzed utilizing GSI-60 DPOAE systems (Grason-Stadler Inc.). Theresults were as follows:
ValuesofthepeakaverageofSOAEswere4.4±2.6dB SPL in healthy subjects and 7.3±4.5dB SPL in TMD subjects, and significant differences (p<0.05, Mann-Whitney U-test) were noted between the two groups.
From the results, it was suggested that peak values (dB SPL) of SOAEs caused cochlear nerve are influenced by unusual trigeminal nerve excitation related temporomandibular disorders in TMD subjects.

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食品摂取アンケートを用いた顎関節症患者の咀嚼機能評価

嶋谷庸子, 山口泰彦, 小松孝雪, 会田英紀, 山本智史, 大畑昇

2000 年 44 巻 1 号 p. 160-167
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.160

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Questionnaires on dietary intake were given to 62 temporomandibular disorder (TMD) patients and 31 normal volunteers in order to evaluate masticatory function in TMD patients. The results were as follows:
1. For several of the foods listed in the questionnaire, a high percentage of the subjects gave answers that were not useful for data analysis such as “dislike”, “don't eat” or “don't know”. The results suggested that more thought must be given to probable likes and dislikes of the subjects regarding food when designing a questionnaire on dietary intake.
2. The score of chewing difficulty (SCD), obtained by matching the answers provided by the subjects with their chewing difficulties, was significantly higher in patients with pain than in normal volunteers. However, the distribution of SCD in TMD patients was very large and the SCD did not coincide with the presence of pain in some patients, suggesting that the degree of chewing difficulty differs greatly among TMD patients. This method of using SCD based on data obtained from questionnaires to evaluate masticatory function is thought to be useful for understanding exactly how the diet of TMD patients is affected by their symptoms.

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臼歯部欠損の咬合回復にインプラントを用いた1例

小柳光蔵

2000 年 44 巻 1 号 p. 168-169
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.168

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プラークコントロールによる経過観察中の一症例

渥美美穂子

2000 年 44 巻 1 号 p. 170-171
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.170

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旧義歯を利用したマグネットアタッチメントの一症例

藤原到

2000 年 44 巻 1 号 p. 172-173
発行日: 2000/02/10
公開日: 2010/08/10

DOIhttps://doi.org/10.2186/jjps.44.172

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