Prosthodontic Research & Practice最新文献_第4页

Stabilities of Maxillary Complete Overdentures With and Without Abutment Tooth Support — Examination by Dynamics of Atmospheric Pressure as an Index of Denture Stability 上颌覆盖全口义齿有无基牙支持的稳定性——以气压动力学作为义齿稳定性指标的检验

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.89

Mamoru Murakami, K. Takesako, N. Kawahata, Hideaki Tanaka, Y. Nishi, E. Nagaoka

{"title":"Stabilities of Maxillary Complete Overdentures With and Without Abutment Tooth Support — Examination by Dynamics of Atmospheric Pressure as an Index of Denture Stability","authors":"Mamoru Murakami, K. Takesako, N. Kawahata, Hideaki Tanaka, Y. Nishi, E. Nagaoka","doi":"10.2186/PRP.7.89","DOIUrl":"https://doi.org/10.2186/PRP.7.89","url":null,"abstract":"Purpose: The purpose of the present study was to investigate whether or not abutment tooth support helps to stabilize the overdenture using the dynamics of atmospheric pressure (DAP) as an index of denture stability.Methods: Experimental dentures for measuring DAP were prepared by indirectly relining duplicates of overdentures used by five subjects (1 male, 4 females). The experimental dentures were relieved at the part of the abutment teeth. These dentures were not supported by the abutment teeth (non tooth-supported overdenture). Those were adjusted and used for 1 week. DAP under non tooth-supported overdenture was measured three times at the center of the palatal plate under experimental conditions with and without food in the mouth. After the measurements, non tooth-supported overdentures were immediately placed in contact with the abutment teeth using an auto-polymerizing resin (tooth-supported overdentures). DAP under tooth-supported overdentures was measured in a similar manner to that under non tooth-supported overdenture. Measurements for the respective experimental dentures were compared.Results: Under both experimental conditions with and without food in the mouth, the respective patterns of DAP using tooth-supported overdentures and non tooth-supported overdentures were similar. However, the amount of change of atmospheric pressure (AP) was significantly smaller under tooth-supported overdenture than under non tooth-supported overdenture.Conclusion: It is considered that smaller changes of AP reflect better stability of dentures. Accordingly, the stability of tooth-supported overdenture was superior to that of non tooth-supported overdenture.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114320145","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: 0

Application of Anti-Microbial Protein Lysozyme for Dental Materials 抗菌蛋白溶菌酶在口腔材料中的应用

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.225

Rei Tsuji, Y. Shinohara, H. Nagadome, Y. Terada

引用次数: 0

The Analysis of the Load Exerted on the Implants Supporting an Overdenture Based on In Vivo Measurement 基于体内测量的覆盖义齿种植体负荷分析

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.258

N. Yoda, T. Ogawa, Yoshinori Gunji, T. Kawata, T. Kuriyagawa, K. Sasaki

{"title":"The Analysis of the Load Exerted on the Implants Supporting an Overdenture Based on In Vivo Measurement","authors":"N. Yoda, T. Ogawa, Yoshinori Gunji, T. Kawata, T. Kuriyagawa, K. Sasaki","doi":"10.2186/PRP.7.258","DOIUrl":"https://doi.org/10.2186/PRP.7.258","url":null,"abstract":"The aims of this study were to measure the three-dimensional (3-D) loads exerted on the implants supporting an overdenture during function in vivo and to clarify the effect of the number of the implants on the loads. The load-measuring devices were mounted on the implants inserted in the mandible of a 62 aged female subject. Either two or four implants connected with a bar were used for supporting her overdenture. The loads on the implants were expressed three dimensionally as load vectors and were analyzed in the coordinates based on the Frankfort horizontal plane and sagittal plane. The tasks examined were maximum voluntary clenching (MVC) and gum chewing (GC). The total load exerted on the implants with a four-implant supported overdenture (4I-Od) was larger than that with a two-implants supported overdenture (2I-Od) at MVC. The maximum occlusal force on the overdenture showed the same manner (p<0.01). The directions of the loads were posterior and lateral at MVC. The total load exerted on the implants located on the working side, was larger than that on the implants located on the non-working side during GC in the case of 4I-Od. The similar manner was also observed in the 2I-Od. The tensile loads were registered during GC. The functional loads exerted on the individual implants in the case of 4I-Od were smaller than those in the 2I-Od. The loads on the implants during function are thus affected by the number of implants supporting the overdenture.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124421494","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

Temporal Changes in Swallowing Function Caused by a Palate Covering 上颚覆盖引起的吞咽功能暂时性改变

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.97

J. Furuya, Atsushi Suzuki, Tetsuya Suzuki, N. Oda, Takuya Kobayashi

{"title":"Temporal Changes in Swallowing Function Caused by a Palate Covering","authors":"J. Furuya, Atsushi Suzuki, Tetsuya Suzuki, N. Oda, Takuya Kobayashi","doi":"10.2186/PRP.7.97","DOIUrl":"https://doi.org/10.2186/PRP.7.97","url":null,"abstract":"Purpose: The purpose of this study was to elucidate the temporal relationship between habituation to a palate covered by a prosthesis and swallowing function.Materials and methods: Ten healthy adults were selected as subjects. Tongue pressure on an experimental palatal plate with four pressure sensors was recorded simultaneously with surface electromyography measurements of suprahyoid muscles during swallowing of 3 ml of water. Measurements were performed 6 times: immediately after placement of the experimental palatal plate (Day 0), and on Day 1, Day 3, Day 7, Day 10, and Day 14. Temporal changes were analyzed in terms of the order of EMG activity and tongue pressure, and the duration for total swallowing (DTS), oral preparatory stage (DOPS), oral stage (DOS), and pharyngeal stage (DPS).Results: Onset of activity of the suprahyoid muscles was observed significantly earlier in all regions compared to onset of tongue pressure. Onset of tongue pressure in the posterior region was significantly delayed compared to onset of tongue pressure in another region. These results remained constant over the measurement period. DTS and DOS were significantly shortened on and after Days 3 and 7, respectively, compared to the respective values on Day 0. DOPS was significantly shortened on Day 7, compared to Day 0 and 1. DPS showed no significant change over time.Conclusion: The time required for swallowing shows a tendency to decrease over time as a subject becomes accustomed to a palate covering. This was mainly due to shortening of the oral stage.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125922518","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

Study on the Relationship between Subjective Oral Dryness and Stimulated Saliva or Oral Mucosal Moisture 主观口腔干燥与刺激唾液或口腔黏膜水分关系的研究

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.78

Fumi Takahashi, Mutsumi Takahashi, S. Toya, O. Morita

{"title":"Study on the Relationship between Subjective Oral Dryness and Stimulated Saliva or Oral Mucosal Moisture","authors":"Fumi Takahashi, Mutsumi Takahashi, S. Toya, O. Morita","doi":"10.2186/PRP.7.78","DOIUrl":"https://doi.org/10.2186/PRP.7.78","url":null,"abstract":"Purpose: The present study aimed to investigate the relationship between subjective oral dryness and stimulated saliva or oral moisture.Methods: Twenty-one patients with subjective oral dryness (OD) and 21 healthy adults (HA) were enrolled in the study. The Saxon test was performed by chewing a gauze sponge for 2 minutes. Oral moisture was measured at the lingual mucosa (LM) and buccal mucosa (BM) by using an oral moisture checking device. Group differences in the amount of stimulated saliva and oral moisture were compared using the Mann-Whitney U test and Student's t test.Results: The average amount of salivary secretion in OD and HA in the Saxon test was 0.65 ± 0.55 and 2.34 ± 1.41 g/2 min, respectively; the difference between the groups was significant (p < 0.01). The oral moisture at the LM in OD and HA was 27.2% ± 2.9% and 32.3% ± 1.7%, respectively; this difference was significant (p < 0.01). The oral moisture at the BM in OD and HA was 32.6% ± 2.1% and 34.0% ± 2.2%, respectively; this difference was also significant (p < 0.05).Conclusion: This study demonstrated that the amount of stimulated saliva became less than 2.00 g and the moisture at the LM became less than 30.0% in patients with subjective oral dryness. These results suggest that stimulated saliva and oral moisture are related to subjective oral dryness; thus, both the Saxon test and the test using an oral moisture checking device are useful for the assessment of subjective oral dryness.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131452705","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: 7

The Phonetic Effects for Biometric Security System by Palatal Plates 腭板在生物识别安全系统中的语音效应

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.255

Ikuto Matsumoto, O. Yamamura, Fumiaki Iwane, K. Fujibayashi, U. Hata, S. Mimura, Koji Ryumon, Tasuku Katayama, Daisuke Mori, Shuu Fujiwara

{"title":"The Phonetic Effects for Biometric Security System by Palatal Plates","authors":"Ikuto Matsumoto, O. Yamamura, Fumiaki Iwane, K. Fujibayashi, U. Hata, S. Mimura, Koji Ryumon, Tasuku Katayama, Daisuke Mori, Shuu Fujiwara","doi":"10.2186/PRP.7.255","DOIUrl":"https://doi.org/10.2186/PRP.7.255","url":null,"abstract":"The purpose of this experiment was to correspond for the voice security system when the patients wore the dentures. Because the phonetic disorder by the dentures some troubles in the biometric security system with sound recognition, for example, the cash cards, the credit cards and the lock of the doors. But there was few report about the individual recognition by the palatal plates. So we observed the changes of the rates of individual recognition by the palatal plates. The voices of 5 subjects were recorded without the experimental palatal plates and with them. The voice samples were analyzed with the soft for judging the individual recognition rates by the voices. And the rates of individual recognition, the time durations and the pitch curves for every word were observed. By the palatal plates, the rates of individual recognition decreased, the time durations increased, the pitch curves changed little. And by the palatal plates, there were significance (p<0.05) about the rates of individual recognition and the time durations, but there were not significance (p<0.05) about the pitch curves by the two-way layout ANOVA. The frequencies of the pitch curve changed by the vocal chords vibration and affected to the height of the voice. So they did not change by the labial and buccal plates. Therefore they will be able to use for the individual recognition system.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125119878","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: 0

Clinical Guidelines for Managing the Complex Restorative Patient 复杂恢复期患者临床管理指南

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.126

M. Yamazaki

引用次数: 0

Radical Sterilization Properties of Hydrogen Peroxide Activated by LED (386nm) Irradiation for Oral Bacterium : A Pilot Study LED (386nm)辐照活化过氧化氢对口腔细菌自由基杀菌性能的初步研究

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.138

T. Kanno, Keisuke Nakamura, H. Ikai, T. Mokudai, E. Hayashi, M. Kohno

引用次数: 1

Prosthodontics for Young People with Partial Anodontia 青少年部分牙齿缺失的修复学

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.234

M. Inoue, Yutaka Yamada, T. Etoh

引用次数: 0

Effects of a Denture Adhesive in an Edentulous Maxillectomy Patients 义齿粘接剂在无牙上颌切除术患者中的应用效果

Prosthodontic Research & Practice Pub Date : 2008-07-01 DOI: 10.2186/PRP.7.195

Y. Sumita, T. Otomaru, H. Taniguchi

引用次数: 1