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Australian prosthodontic journal最新文献

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The endalveolar crest: anatomic and prosthodontic considerations of an overlooked mandibular landmark. 牙槽嵴：一个被忽视的下颌标志的解剖和修复考虑。
Australian prosthodontic journal Pub Date : 1994-01-01
B Penhall, G C Townsend
{"title":"The endalveolar crest: anatomic and prosthodontic considerations of an overlooked mandibular landmark.","authors":"B Penhall, G C Townsend","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Surgical and prosthodontic treatment of edentulous patients have confirmed the presence of a seldom-described crest of bone situated above and distal to the mylohyoid ridge of the mandible. This study aimed to establish the frequency of occurrence and range of expression of the feature, which it is suggested should be called the endalveolar crest in humans and other primates. Evidence of the crest was noted in all specimens examined although the expression varied. Dissection of fresh and preserved cadavers indicated that the crest provided attachment for part of the superior constrictor muscle and that it may also afford some protection to the lingual nerve in the retromolar region.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"23-9"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590297","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
Impact testing of denture base polymers. 义齿基托聚合物的冲击试验。
Australian prosthodontic journal Pub Date : 1993-01-01
C A Price
{"title":"Impact testing of denture base polymers.","authors":"C A Price","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Acrylic resin has been the denture base material of choice since its initial production in 1936, due to its aesthetic properties and ease of processing. It would be desirable, however, to have a material which is also unbreakable under clinical conditions. A wide range of materials has been suggested for use as denture base materials. The impact resistance of a polysulphone denture base polymer has been compared with that of a linear poly(methyl methacrylate) and four rubber-methacrylate denture base polymers. When tested under oral conditions, the polysulphone material had an impact resistance about twice as high as the best rubber-methacrylate and about four times as high as ordinary poly(methyl methacrylate).</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 ","pages":"35-8"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19669206","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
Titanium. A review of investments for high temperature casting. 钛。高温铸造的熔模综述。
Australian prosthodontic journal Pub Date : 1993-01-01
T Mori
{"title":"Titanium. A review of investments for high temperature casting.","authors":"T Mori","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Conventional silica (SiO2) based dental casting investments are used for the casting of pure titanium using casting machines specifically developed for this metal. Highly reactive molten titanium reduces SiO2 and titanium is in turn oxidised. For this reason possible alternatives to SiO2 have been studied in the past decade and MgO and Al2O3 are the most common in current commercial investments released for titanium casting. The surface of titanium castings presents a layered structure and its evaluation in relation to clinical performance requires further study. It is also urgently required to know setting and thermal behaviour of the newly developed investments for successful compensation of metal shrinkage.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 ","pages":"31-4"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19669205","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
An overview of Brånemark osseointegrated oral implants in Australia and New Zealand 1981-1992. 1981-1992年澳大利亚和新西兰bramatnemark骨整合口腔种植体的综述。
Australian prosthodontic journal Pub Date : 1993-01-01
I Klineberg
{"title":"An overview of Brånemark osseointegrated oral implants in Australia and New Zealand 1981-1992.","authors":"I Klineberg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This report summarises the development of the use of Brånemark implants in Australia and New Zealand from 1981 to 1992. This decade of activity, although slow initially, has now gained momentum and there is increasing demand for this service. The single tooth implant is most frequently offered in dental practice although within Dental Hospital Clinics, the lower full arch bridge continues to provide the greatest rehabilitation need. Universities have now embraced Brånemark implants as an appropriate surgical-restorative procedure for predictable management of edentulism. The data summarised in this report confirms that the success rate in Australia and New Zealand is equal to that obtained internationally for Brånemark implants.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 Suppl ","pages":"57-64"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19048214","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
Awareness and needs of dental implants by patients in New South Wales. 新南威尔士州患者对种植牙的认识和需求。
Australian prosthodontic journal Pub Date : 1993-01-01
H A Best
{"title":"Awareness and needs of dental implants by patients in New South Wales.","authors":"H A Best","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An exploratory cross-sectional analytical study of patients presenting for prosthodontic treatment to private general dental practices and public hospitals in New South Wales was completed. Significantly more patients attending private dentists had 'heard' of dental implants compared with the hospital group (G2=79.404; df=1; p<0.001) and significantly more of the former patients were aware that dental implant treatment is available in New South Wales (G2=32.823; df=1; p<0.001). Of the patients attending private practice 19.2% felt that it is likely that they may require dental implant treatment in the future and 14.1% of their current treatment requests involved implants. These figures may be considered moderately high whereas the corresponding figures for the patients attending public hospitals were low.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 ","pages":"9-12"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19669211","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
Mechanical and biomechanical guidelines for the use of Brånemark System--clinical studies. br<s:1> nemark系统使用的机械和生物力学指南-临床研究。
Australian prosthodontic journal Pub Date : 1993-01-01
B Rangert
{"title":"Mechanical and biomechanical guidelines for the use of Brånemark System--clinical studies.","authors":"B Rangert","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The understanding of biomechanical principles increases in importance as the number of potential indications for implant treatment increases. Recognising these principles as they relate to specific treatment indications helps to prevent conditions leading to overload. One consequence of recent findings shows that prosthetic loading conditions could significantly differ in the partially edentulous or single tooth cases as opposed to full arch bridges. It is reasonable to imagine that if you can make a full arch bridge on 4 to 6 fixtures, then two fixtures would be more than enough support for the traditional three-unit bridge. However, full arch restorations are based on multiple fixtures spread in an arch form which allows the masticatory forces to load the implants generally in an axial direction. Axial forces, whether compressive or tensile in nature, provide favourable loading throughout the entire cross-sectional area of the implants, and the forces are distributed through a maximum bone/implant interface. On the other hand, in partial restorations, the implants are placed more along a straight line. Any straight line arrangement increases the possibility for bending forces on the implants around an axis of rotation. Bending has much poorer stress distribution patterns on both the components and the supporting bone than axial load.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 Suppl ","pages":"45-9"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19048212","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
Educational perspectives in implant prosthodontics. 种植体修复学的教育观点。
Australian prosthodontic journal Pub Date : 1993-01-01
P J Henry
{"title":"Educational perspectives in implant prosthodontics.","authors":"P J Henry","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Osseointegration as a clinical reality arrived in Australia 10 years ago. Since that time, training courses and research programs have been conducted at the universities in Perth and Sydney. As a result of these developments, osseointegrated implant prosthodontics is now common practice, and continues to grow at an accelerated rate. General dentists have become increasingly interested as the scope of treatment expanded into the partially edentulous mouth and the missing single tooth situation. As the necessity arises to provide treatment for more patients because of increased patient demand, the future of simple implant placement for selected cases will have to be reassessed. It is inevitable that eventually, capable, highly motivated dentists will place their own implants in an effort to achieve more affordable treatment in a simplified but carefully organised environment, with all variables under the control of the single operator.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 Suppl ","pages":"51-5"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19048213","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
Magnet overdentures. 磁性覆盖义齿。
Australian prosthodontic journal Pub Date : 1993-01-01
B R Gillings
{"title":"Magnet overdentures.","authors":"B R Gillings","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Magnets were first used for overdenture retention in 1977. A novelty then, they are now an accepted alternative to conventional attachments, and available commercially from a number of manufacturers. Nearly all of them use a \"closed field\" magnet configuration, which provides optimum retention and eliminates any possibility of magnetic field effects on tissues. Initial corrosion problems are now being eliminated by improved designs. Clinical experience has shown that overdentures preserve alveolar bone and that magnetic retention can be used effectively on tooth roots which would have a poor prognosis with conventional attachments. Magnets can also be used to retain overdentures against implants as an inexpensive alternative to conventional implant dentures.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 ","pages":"13-21"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19670008","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
The dimensional accuracy and stability of composite inlays. 复合镶嵌体的尺寸精度和稳定性。
Australian prosthodontic journal Pub Date : 1993-01-01
W Sherson
{"title":"The dimensional accuracy and stability of composite inlays.","authors":"W Sherson","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The dimensional accuracy and stability of two composite inlay materials was studied by assessing polymerisation shrinkage, thermal expansion and water sorption. Impression taking, die accuracy and stability and wear of the material were also considered. The mean coefficients of thermal expansion (20 to 65 degrees C) determined using a differential dilatometer were: Clearfil 21 X 10-6 and Isosit 31 X 10-6. A metal die similar to that used by Taylor in 1931 to assess casting shrinkage of gold inlays was used to assess polymerisation shrinkage. Isosit had a mean protrusion value of 0.321 mm providing a value for linear polymerisation shrinkage of 0.9%. In contrast Clearfil specimens had a mean protrusion of 0.108 mm providing a value for linear polymerisation shrinkage of 0.3%. The expansion due to water sorption at seven days was very small and did not offset the polymerisation shrinkage. However, these must be interpreted in light of the results of long term immersion studies. The total dimensional change of an Isosit specimen is -1.06%. For an inlay of 5 mm in diameter the linear dimensional change would be 54 micrometers, providing a cement space of 27 micrometers. The total dimensional change of a Clearfil specimen is -0.53%. For an inlay of 5 mm in diameter the linear dimensional change would be 27 micrometers, providing a cement space of 13.5 micrometers.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 ","pages":"39-43"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19669207","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
The prevalence and aetiology of craniomandibular disorders among completely edentulous patients. 全牙缺牙患者颅下颌疾病的患病率及病因分析。
Australian prosthodontic journal Pub Date : 1993-01-01
M D Mercado
{"title":"The prevalence and aetiology of craniomandibular disorders among completely edentulous patients.","authors":"M D Mercado","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Two hundred and one patients awaiting complete denture treatment with the Victorian Denture Scheme participated in the study. One hundred and fifty three of these were females and 48 were male. The majority of the participants were above 65 years of age and had been wearing their present complete dentures for more than 15 years. Most of these patients were seeking prosthodontic treatment in order to replace their dentures which they said had become \"loose\" over the years. The information obtained from the interview-questionnaire and the clinical examination showed that parafunctional habits were common among 70% of the participants. In addition to this, pain and tenderness to palpation of the lateral pterygoid muscles was the only symptom which had a significant percentage distribution among the patients. Statistical analysis showed that there were some signs and symptoms of craniomandibular disorders which were correlated with these patients' complaint of loose dentures. It was also shown that signs and symptoms of craniomandibular disorders may be related to the patients' age and the number of sets of complete dentures worn in the past.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"7 ","pages":"27-9"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19670010","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
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