{"title":"Present situation and future R&D at Nobelpharma AB.","authors":"C Holmberg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Nobelpharma's long-term objectives are to reach many patients with implant treatment, to strengthen our position as the world's leading implant company and to become one of the world's leading companies in the dental field. We have defined a number of strategies and identified obstacles which need to be overcome in order to achieve these objectives. Research and development is of course one of the most important strategic fields for our company. For a leading research company, it is essential to be able to protect its innovations, so patents are very important. Our patent situation today is very strong and we now have more than 100 original patents or patent applications. We are continuously working on the development of new techniques and products. Our research areas include studying interface geometries, soft tissue integration, defining guidelines for treatment planning and increasing our knowledge about precision requirements in support of future product development.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"9 Suppl ","pages":"9-11"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20018734","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}
{"title":"Medicolegal aspects of oral implant surgery.","authors":"P Worthington","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The number of practitioners performing implant surgery has increased dramatically over the last fifteen years. As confidence is gained they tend to accept increasingly challenging cases and it is to be expected that the incidence of problems and complications will increase. Serious problems and complications may result from inadequate treatment planning, some from careless instrumentation, and some from lack of appropriate precautions. Many have resulted in medicolegal actions and it seems prudent to study these in the hope that awareness of these disasters may prevent their repetition.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"9 Suppl ","pages":"13-7"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20018735","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}
{"title":"A review of educational developments with Brånemark osseointegrated oral implants in Australia and New Zealand 1992-1994. Part II: Undergraduate, and postgraduate implant education in Australian and New Zealand dental schools.","authors":"P Henry, I Klineberg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A survey of Australian and New Zealand Dental Schools was carried out in 1993, aimed at assessing time allocation and curriculum content in relation to dental implants. Considerable variation was evident at both undergraduate and graduate levels. Continuing education courses in single-tooth implant surgery are available for general dental practitioners under carefully controlled circumstances. At the postgraduate level a formal University Diploma course in oral implants is now available at the University of Sydney. Dental educators must continue to react to the changing community scene in restorative dentistry, in terms of both need and demand. Educators must also be cognizant of the rapidity of change occurring in the area of implant dentistry. The provision of high-quality implant treatment and service is dependent on continual review of training and education at all levels of the dental profession.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"9 Suppl ","pages":"55-9"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20018073","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}
{"title":"Temporomandibular disorders: a pilot study of activation patterns and motor unit analysis of jaw muscles.","authors":"E Hellstrand, G Hellsing","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Ten patients exhibiting chronic signs and symptoms of temporomandibular dysfunction were investigated with electromyography (EMG) and compared with a group of healthy controls. A quantitative analysis of 20 individual motor units as well as single fibre recordings of the most symptomatic muscle was performed on five patients. One of these patients showed clear signs of myopathy in her right temporal muscle. Surface jaw muscle EMG of the other five patients showed co-contractions of agonists and synergists during jaw opening and closing movements. This may indicate disturbances in the integrated motor unit activity. The background of these findings may therefore be found in the function of the muscle fibre as well as in segmental and suprasegmental disturbances. Recent research has suggested a role of chemosensitive afferent endings in development of excitatory fusimotor reflexes.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"9 ","pages":"39-43"},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20018731","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}
{"title":"A history of dental polymers.","authors":"C A Price","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The disadvantages of the use of vulcanite as a denture base material prompted the development of a wide range of thermoplastic polymers as alternatives to vulcanite. Heat-cured acrylic resin materials are the most widely used polymeric denture base materials at present, but research into further improvements in denture base materials continues.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"47-54"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590302","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}
{"title":"The position and function of the mandibular hinge axis.","authors":"R I Nairn","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>It is widely believed that the mandibular hinge axis is anatomically located through the condylar head or its superior surface. This study, using markers placed over the average hinge axis point prior to orthopantograms, an analysis of lateral skull cephalometric radiographs and skull extrapolation, shows that the hinge axis is remote from the condylar head and in the region of the neck of the condyle. This site is consistent with the anatomical consideration of the function of the temporo-mandibular ligament.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"19-22"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590343","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}
{"title":"The captive screw retained sectional denture.","authors":"B R Gillings","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sectional dentures, where retention is gained, not by flexible metal arms engaging \"desirable\" undercuts, have occasionally been described in the dental literature. The captive screw retained sectional denture described here is an effective replacement for one or two missing teeth in selected patients. It consists of separate labial and lingual sections, which, when assembled, provide an aesthetic appearance, functional occlusion and excellent retention, with a minimum of abutment tooth preparation and at low cost. The two sections are connected by a captive screw, which allows the sections to be separated for denture insertion, but which is tightened to join the two sections. Portions of each section then engage tooth undercuts to provide retention. The screw is loosened and tightened by means of a torque-limiting screwdriver. These dentures have a high level of patient acceptability, and do not appear to promote dental caries or gingival irritation.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"39-45"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590300","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}
{"title":"Resin luting cements for full coverage restorations.","authors":"J C Wu, P R Wilson","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Adhesive resin luting cements bond to enamel, dentine, porcelain and some metal alloys. The use of adhesive resins, in the restoration of teeth with short, tapered clinical crowns or other unfavourable geometric configurations, may be particularly advantageous because an approach less destructive than traditional crown preparation may be possible. This paper reviews the composition, adhesive, physical, and biological properties, and handling characteristics of Panavia and 4-META containing resins (C & B Metabond and Super-Bond C & B). It is concluded that clinical trials are needed to determine the structural longevity and clinical efficacy of these adhesive systems.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"55-63"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590304","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}
{"title":"Wide diameter implants: indications, considerations and preliminary results over a two-year period.","authors":"S L Graves, C E Jansen, A A Siddiqui, K D Beaty","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Wide diameter implants may be a useful alternative to conventional implant rehabilitation. Despite the fact that most major implant manufacturers are supplying wide diameter implants, very few articles actually address the indications, benefits and results of the use of wide diameter implants. Benefits and indications include increased implant surface area, \"back-up\" implant for when the initial implant lacks stability, immediate replacement of non-integrated or fractured implants, immediate placement of an implant after tooth extraction, anatomical considerations, increased prosthetic stability and biomechanical factors. Over a two year period, 268 wide diameter implants were placed in 196 patients. Preliminary results are presented in this paper and indicate an overall success rate, up to two years after placement, of approximately 96 per cent. All failures occurred before stage two surgery, due to non-integration of the implant.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"31-7"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590299","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}
{"title":"Bruxism: aetiology, clinical signs and symptoms.","authors":"I Kleinberg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The aetiology of bruxism and therefore its management is poorly understood by dentists and their focus on a local dental cause has lead to much unnecessary irreversible dental treatment, with little impact on the incidence of bruxism. Clinical and neurophysiological evidence suggests that there is a strong link between bruxism and tooth wear in man and its counterpart in animals. In animals, keeping teeth sharp has importance for food retrieval and defense. In man, although this is no longer necessary, remnants of this mechanism remain as an inherited predisposition.</p>","PeriodicalId":77024,"journal":{"name":"Australian prosthodontic journal","volume":"8 ","pages":"9-17"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19590208","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}