Prosthodontic Research & Practice最新文献_第9页

Reliability, Validity, and Preference of an Original Faces Scale for Assessing the Mood of Patients with Dentures 原始面孔量表评估假牙患者情绪的信度、效度和偏好

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.93

Yuji Kamashita, Tomomi Sonoda, Y. Kamada, Y. Nishi, E. Nagaoka

{"title":"Reliability, Validity, and Preference of an Original Faces Scale for Assessing the Mood of Patients with Dentures","authors":"Yuji Kamashita, Tomomi Sonoda, Y. Kamada, Y. Nishi, E. Nagaoka","doi":"10.2186/PRP.6.93","DOIUrl":"https://doi.org/10.2186/PRP.6.93","url":null,"abstract":"Purpose: This study aims to examine the reliability, validity, and preference of an original faces scale (original FS) for mood assessment.Methods: The original FS was evaluated by comparing it with a modified faces scale developed by Lorish and Maisiak (modified LM mean age: 68.8 years). We included 32 subjects for reliability and validity analyses, and 34 for analysis of scale preference. The test-retest reliability of the scales was determined by calculating the correlation between two assessments obtained at one-week intervals; the concurrent validity of the original FS, by calculating its correlation with VAS and the modified LM further, the original FS demonstrated the highest Spearman’s rank correlation coefficient (r=0.76). The concurrent validity, measured by the correlation between the original FS and VAS (r=0.70, P<0.01) and the modified L&M FS (r=0.90, P<0.01), was also established. A majority of the subjects preferred the original FS to the other scales.Conclusion: The original FS is an effective nonverbal method for conveniently assessing the mood of patients with dentures with respect to prosthetic treatment.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132642691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Effects of a Static Magnetic Field on Mineralization of MC3T3-E1 Cells 静态磁场对MC3T3-E1细胞矿化的影响

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.87

Y. Imaizumi, S. Ozawa, Koji Hirukawa, A. Togari, Yoshinobu Tanaka

{"title":"Effects of a Static Magnetic Field on Mineralization of MC3T3-E1 Cells","authors":"Y. Imaizumi, S. Ozawa, Koji Hirukawa, A. Togari, Yoshinobu Tanaka","doi":"10.2186/PRP.6.87","DOIUrl":"https://doi.org/10.2186/PRP.6.87","url":null,"abstract":"Purpose: The stage at which bone formation was influenced by a static magnetic field (SMF) remains to be elucidated. The purpose of this study was to investigate the initial and long-term effects of moderate-intensity SMF on mouse osteoblastic cells (MC3T3-E1).Methods: MC3T3-E1 osteoblastic cell cultures were exposed to SMF (250 mT, Nd-Fe-B disc magnet). The long-term effect of this exposure was evaluated by measuring mineralized nodule formation. Osteoblastic cell proliferation was assessed using a colorimetric proliferation assay (WST-8); differentiation was evaluated by measuring alkaline phosphatase (ALP) activity; and noncollagenous gene expression was evaluated using real-time PCR to determine the initial and early responses.Results: After a month of continuous SMF exposure, mineralized nodule formation increased significantly. The initial proliferative activity decreased and was not related to apoptotic changes. ALP activity and the gene expression levels of secreted phosphoprotein 1 (SPP1), integrin binding sialoprotein, and bone gla protein were not influenced by the SMF exposure.Conclusion: Moderate-intensity (250 mT) SMF exposure increased mineralized nodule formation in mouse osteoblastic MC3T3-E1 cells. However, gene expression related to decreased cell proliferation and unaltered cell differentiation and bone matrix did not correlate with the long-term effects observed following SMF exposure. The mechanism by which SMF exposure influences osteoblast mineralization remains unknown.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125629728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Clinical Evaluation of Marginal and Internal Gaps of Zirconia-based 3-unit CAD/CAM Fixed Partial Dentures 氧化锆基3单元CAD/CAM固定局部义齿边缘和内间隙的临床评价

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.114

M. Tsumita, Y. Kokubo, C. Ohkubo, Yuki Nagayama, S. Sakurai, S. Fukushima

引用次数: 6

Prosthesis Made of an Onlay -Type Rest with High Retentive Force (Cap Clasp) 高固位力的嵌板式假体(帽扣)

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.132

Yasuko Takayama, Masayuki Ichikawa, T. Hosoi

{"title":"Prosthesis Made of an Onlay -Type Rest with High Retentive Force (Cap Clasp)","authors":"Yasuko Takayama, Masayuki Ichikawa, T. Hosoi","doi":"10.2186/PRP.6.132","DOIUrl":"https://doi.org/10.2186/PRP.6.132","url":null,"abstract":"The “Cap clasp” is a retainer which exerts its retentive force through an onlay-type rest covering the occlusal surface and a part of the crown. This case report pertains to evaluation of the usefulness of a cap clasp used as a retainer in cases of temporomandibular arthrosis or bite raising. Abstract Patients: Case 1, a 28-year-old male with malocclusion (molar open bite) associated with temporomandibular arthrosis. After splint therapy, a metallic splint made of cap clasps for the lower molars of both sides was prepared for this patient. Case 2 was a 58-year-old male in whom adequate denture space was not available when preparing a partial denture, because of a deep overbite. This case was treated by bite raising, with cap clasps serving as the retainer. Case 3 was a 48-year-old woman in whom the dental arch size differed between the maxilla and mandible and with malocclusion of the left molars. In this case, treatment with an ordinary clasp denture was difficult. After insertion of an immediate denture using a Starbuck splint, a metal base denture combined with cap clasps was applied. Discussion: The greatest advantage of a cap clasp lies in that it does not necessitate preparation of the tooth and allows the existing crown and bridge to be utilized as an abutment tooth. Retainers made using cap clasps are expected to be useful when bite raising is attempted, because of their high supporting ability and retentive force. They also offer promise as a means of reversible and permanent treatment of temporomandibular arthrosis. Conclusion: Dentures and metallic splints prepared with a cap clasp serving as a retainer fit well into the oral cavity of patients, provide excellent occlusal sup-port, and are retained for long periods of time.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126527733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of Heating CAD/CAM-Fabricated Ceramic Crowns on Marginal Fit Accuracy 加热CAD/ cam陶瓷冠对边缘配合精度的影响

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.81

Mitsunori Uno, Ryugo Nonogaki, Yoshirou Yokoyama, Y. Yamamura, H. Ishigami, M. Kurachi

{"title":"Effect of Heating CAD/CAM-Fabricated Ceramic Crowns on Marginal Fit Accuracy","authors":"Mitsunori Uno, Ryugo Nonogaki, Yoshirou Yokoyama, Y. Yamamura, H. Ishigami, M. Kurachi","doi":"10.2186/PRP.6.81","DOIUrl":"https://doi.org/10.2186/PRP.6.81","url":null,"abstract":"Purpose: This study aimed to measure the marginal discrepancy at the buccal, mesial, and distal sides along the marginal edge of all-ceramic crowns fabricated using the DENTAL Cadim CAD/CAM system and to examine the effect of a post-milling heat treatment for staining on the marginal fit of the all-ceramic crowns.Methods: An 18-8 stainless steel abutment tooth with a height of 5 mm and an occlusal convergence angle of 8° was used as a mold. A cylindrical pattern model was fabricated using a brush stacking method with an autopolymerizing resin. Three-dimensional geometric measurement of the pattern model was performed using a spherical ruby scanning probe. Subsequently, five all-ceramic crowns were milled from Cadim block CE by using the DENTAL Cadim CAD/CAM system. Surface roughness (Ra and Rmax) of the occlusal surface and vertical distances between the marginal edge and the mold before and after the post-milling heat treatment were measured using a profilometer and an X-Y coordinate reading microscope, respectively.Results: The Ra and Rmax significantly decreased after the heat treatment. The vertical distance at the mesial and distal sides of the crowns was approximately 10 μm before and after the heat treatment. This distance at the buccal side was significantly greater (17.1 μm) than that at the mesial and distal sides before heating, and it significantly increased to 22.0 μm after heating.Conclusion: The all-ceramic crowns milled from Cadim block CE by using the DENTAL Cadim CAD/CAM system showed a clinically acceptable marginal fit. We also observed that the fitting accuracy differed significantly among the three sides of the crown. The change in the marginal fit after the post-milling heat treatment was of a clinically acceptable value.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132858963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Influence of Mechanical Loading on Resonance Frequency Analysis and Trabecular Structure of Peri-implant Bone 机械载荷对种植体周围骨共振频率分析及骨小梁结构的影响

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.120

Hiroyuki Imoto, A. Yamada, I. Shimamura, S. Matsunaga, Y. Ide

{"title":"Influence of Mechanical Loading on Resonance Frequency Analysis and Trabecular Structure of Peri-implant Bone","authors":"Hiroyuki Imoto, A. Yamada, I. Shimamura, S. Matsunaga, Y. Ide","doi":"10.2186/PRP.6.120","DOIUrl":"https://doi.org/10.2186/PRP.6.120","url":null,"abstract":"Purpose: The objective of this study was to clarify the effect of mechanical loading on the trabecular structure of peri-implant bone and determine its correlation with the implant stability quotient (ISQ) value.Methods: This study used 3 immunologically mature male dogs. Three months after bilateral extraction of the mandibular premolars of the dogs, 4 implants were placed in these sites for each dog. After 3 months to allow healing of the implant sites, superstructures were prepared on the right side (loaded side). The implants on the left side were covered with mucosa (non-loaded side). The ISQ values of all implants were measured 3 months after placing the superstructures; subsequently, the animals were sacrificed. After the mandible was excised and fixed, micro-CT images were acquired and three-dimensional analysis, performed.Results: The means and S.D. of the ISQ value for the 12 implants were 69.6±6.2 and 62.9±13.8 for the loaded and non-loaded sides, respectively. No significant difference was noted between the 2 sides. Mean and S.D. of bone volume fraction (BV/TV) were 13.0±6.6 and 9.3±3.8; trabecular thickness (Tb.Th), 97.7±27.7 µm and 91.0 ± 24.0 µm; and trabecular number (Tb.N), 1.24±0.30/mm and 0.99±0.20/mm for the loaded and non-loaded sides, respectively. BV/TV and Tb.N values were higher for the loaded side.Conclusion: Morphological changes occurred in response to functional loading. However, lamellar bone was observed around the implants on both sides. These findings revealed that changes in the bone structure due to functional loading of implants had negligible or no effect on the ISQ value.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117069293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Exploration of the Reliability and Validity of a Short form of the Oral Health Impact Profile for Prostheses 假体口腔健康影响简表的信度与效度探讨

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.99

Megumi Takenaka, R. Ide, Toru Sato, Shigeki Murakami, R. Hosokawa

{"title":"Exploration of the Reliability and Validity of a Short form of the Oral Health Impact Profile for Prostheses","authors":"Megumi Takenaka, R. Ide, Toru Sato, Shigeki Murakami, R. Hosokawa","doi":"10.2186/PRP.6.99","DOIUrl":"https://doi.org/10.2186/PRP.6.99","url":null,"abstract":"Purpose: The Oral Health Impact Profile (OHIP) is one of the most widely used instruments to measure oral health-related quality of life (OHRQoL). The aim of this study was to evaluate the reliability and validity of a Japanese short version of the Oral Health Impact Profile (OHIP-JP16) for prostheses.Methods: Data were collected by means of self-administered questionnaires from July 2004-November 2005 at 4 dental offices located in Japan. The questionnaires consisted of self-perceived oral health status, need for treatment, and the OHIP-JP16 score. The total target sample consisted of 137 patients, of which 125 patients answered all the 16 items in the questionnaires. The reliability was assessed in terms of internal consistency and reproducibility.Results: Cronbach’s alpha of the OHIP-JP16 subscales ranged from 0.43 to 0.93. The reproducibility of test-retest reliability was analyzed (n=12). The test-retest reliability was measured by the intra-class correlation coefficient (ICC) and kappa index. The ICC ranged from 0.69-0.92 and kappa index ranged from 0.12-0.67. The internal consistency and reproducibility demonstrated quite a good reliability. Discriminative validity was examined by comparing total scores among groups according to the following parameters: number of teeth (more than 24 and less than 23), Eichner index (A, B, and C group), denture wearing (with and without dentures), and self-perceived oral health (good and poor). The patients who had more than 24 teeth, were in group A of the Eichner index, those without dentures, and having good oral health had better OHIP-JP16 total scores (P<0.05).Conclusion: As a result of having examined for behaviormetrics study, OHIP-JP16 showed good measurement properties and might be appropriate for use in the clinical settings.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132096303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Effects of Saliva Secretion on the Assessment of Masticatory Performance 唾液分泌对咀嚼性能评价的影响

Prosthodontic Research & Practice Pub Date : 2007-04-01 DOI: 10.2186/PRP.6.127

H. Shiga, Yoshinori Kobayashi, I. Arakawa, M. Yokoyama, Nerihisa Namba

{"title":"Effects of Saliva Secretion on the Assessment of Masticatory Performance","authors":"H. Shiga, Yoshinori Kobayashi, I. Arakawa, M. Yokoyama, Nerihisa Namba","doi":"10.2186/PRP.6.127","DOIUrl":"https://doi.org/10.2186/PRP.6.127","url":null,"abstract":"Purpose: The purpose of this experiment was to clarify whether the amount of saliva secreted during the chewing gummy jelly affected the assessment of masticatory performance.Methods: Twenty healthy subjects were asked to chew 2 g of gummy jelly for 10, 15, and 20 seconds and the amounts of glucose extraction and saliva secretion were measured. The changes in both glucose extraction and saliva from 10 to 20 seconds were investigated. Next, the amount of glucose extraction excluding the effect of saliva (extraction B) was divided by the amount of glucose extraction measured (extraction A), and the results for the two chewing times were compared.Results: The amount of glucose extraction increased proportionally as the chewing time progressed and the change was significant. Although the amount of saliva secretion increased as the chewing time progressed, the change differed from the proportional change in glucose extraction. The amount of saliva secretion was extensive for the first 10 seconds and increased about 0.1 ml every 5 seconds. The ratio of the extraction B to extraction A was between 1.03 and 1.05, and there was a significant difference between each pair of chewing times.Conclusion: From these results it was concluded that the amount of saliva secretion increased during chewing of gummy jelly and affected the assessment of masticatory performance, and this effect was less than 5 % for chewing of up to 20 seconds.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132144046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analysis of the Relationship between the Incisal Overjet in a Maxillary Denture and Phonetic Function Using a Speech Recognition System 用语音识别系统分析上颌义齿内切覆盖与语音功能的关系

Prosthodontic Research & Practice Pub Date : 2006-11-21 DOI: 10.2186/PRP.5.171

Shusuke Inukai, M. Hideshima, Masayuki Sato, A. Nishiyama, Tomohiro Ando, T. Ohyama, H. Matsuura

{"title":"Analysis of the Relationship between the Incisal Overjet in a Maxillary Denture and Phonetic Function Using a Speech Recognition System","authors":"Shusuke Inukai, M. Hideshima, Masayuki Sato, A. Nishiyama, Tomohiro Ando, T. Ohyama, H. Matsuura","doi":"10.2186/PRP.5.171","DOIUrl":"https://doi.org/10.2186/PRP.5.171","url":null,"abstract":"Purpose: The purpose of this study was to investigate the relationship between the intelligibility of the /S/ sound and the incisal overjet of the anterior teeth of in a maxillary denture.Methods: Five subjects who were fitted with maxillary dentures participated in this study. Using a speech recognition system for the evaluation of phonetic functions, the correct and incorrect ratios of the intelligibility of the sound of the monosyllable [Si] in five subjects were determined in relation to increases in the degree of incisal overjet of the anterior teeth in a maxillary denture by +0, +1, +2 and +4 mm relative to that of the dentures already in use.Results: In association with increase in the degree of incisal overjet in experimental dentures from +0 to +4 mm, while the appearance ratio of the correct [Si] sound decreased from 73.0±8.6% at +0 mm to 48.5±7.8% at +4 mm, that of the incorrect [Si] sound increased from 17.4±4.7% at +0 mm to 36.0±10.6% at +4 mm.Conclusion: Increasing distance between the incisal edges of the maxillary and mandibular incisors make correct pronunciation of [Si] progressively more difficult.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124667970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Research Projects on Occlusion and Jaw Function Published in 2005 by Members of the Japan Prosthodontic Society: A Review 2005年日本口腔修复学会成员发表的咬合与颌功能研究项目综述

Prosthodontic Research & Practice Pub Date : 2006-11-21 DOI: 10.2186/PRP.5.123

H. Shiga

引用次数: 0