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Sökning: LAR1:gu > Forskningsöversikt > Carlsson Gunnar E 1930

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1.
  • Carlsson, Gunnar E, 1930 (författare)
  • Changes in the prosthodontic literature 1966 to 2042.
  • 2005
  • Ingår i: Journal (Canadian Dental Association). - 1488-2159. ; 71:5
  • Forskningsöversikt (refereegranskat)abstract
    • PURPOSE: To describe the growth and content of the prosthodontic literature over the last 4 decades, to make a prognosis on its probable development in the coming 4 decades and to discuss changes in the content of the International Journal of Prosthodontics (IJP) from its start in 1988 to 2004. METHODS: MEDLINE was searched for articles on prosthodontics published between 1966 and April 2004. All volumes of IJP were examined with respect to type, subject area and geographic origin of articles. RESULTS: Using the term "prosthodontics," the MEDLINE search produced 66,600 hits. The proportion of clinical studies increased from 1% during the first 10-year period to 13% since 2001. Articles on removable dentures decreased during the period reviewed, whereas those on implant prosthodontics increased. Randomized controlled trials were rare and often of inadequate quality. Literature reviews have become popular, but many do not follow current guidelines for systematic reviews. A marked change in geographic origin of articles in IJP has occurred, with a decrease in material from North America and an increase in that from Europe and Asia. The Internet and open-access publishing will probably have a great impact on the future development of the prosthodontic literature. CONCLUSIONS: Substantial changes have occurred in the prosthodontic literature between 1966 and 2004, and they can be expected to continue with the rapid development of information technology and increased use of the Internet.
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2.
  • Carlsson, Gunnar E, 1930, et al. (författare)
  • Etiology of temporomandibular disorders with special focus on the role of occlusion : Η αιτιολογία των Κρανιογναθικών Διαταραχών, με ιδιαίτερη έμφαση στο ρόλο της σύγκλεισης
  • 2011
  • Ingår i: Odontostomatological Progress. - 0029-8506. ; 65:2, s. 180-203
  • Forskningsöversikt (refereegranskat)abstract
    • The aim of this article was to present a systematic evidence –based review of literature related to the etiology of temporomandibular disorders (TMD). Since there is a scarcity of the highest level of evidence, randomized controlled studies (RCTs), on this topic, the best available knowledge of TMD etiology was mainly based on studies of lower level of evidence and some recent more or less systematic reviews. Accepting these limitations, the following conclusions have been drawn. TMDs comprise a number of disorders and conditionς in the orofacial region. It is therefore self-evident that the etiology is multifactorial. The comorbidity between TMD signs and symptoms and pain and disorders in other parts of the body has lately attracted much attention. Impaired general health and systemic diseases constitute important parts in the complex etiology of many TMD problems. The role of psychological and psychosocial factors in the TMD etiology have received great acceptance over the last few years. Recent research indicates that occlusion does not play a major role in the etiology of TMD. However, the long controversy regarding the role of occlusion in the pathogenesis of TMD has not yet been resolved. Several dentists, although acknowledging that its importance may be smaller than previously believed, still claim that occlusion cannot be completely ruled out as a possible contributing factor in the etiology of TMD. Even if the etiology of TMD is not fully known, successful management of most TMD patients is possible. The clinician should explain to the patient the probable nature of the condition and that most TMDs are benign and can be treated with simple methods with a good prognosis.
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3.
  • Carlsson, Gunnar E, 1930 (författare)
  • Implant and root supported overdentures - a literature review and some data on bone loss in edentulous jaws.
  • 2014
  • Ingår i: Journal of Advanced Prosthodontics. - : The Korean Academy of Prosthodontics. - 2005-7806 .- 2005-7814. ; 6:4, s. 245-252
  • Forskningsöversikt (refereegranskat)abstract
    • PURPOSE. To present a literature review on implant overdentures after a brief survey of bone loss after extraction of all teeth. MATERIALS AND METHODS. Papers on alveolar bone loss and implant overdentures have been studied for a narrative review. RESULTS. Bone loss of the alveolar process after tooth extraction occurs with great individual variation, impossible to predict at the time of extraction. The simplest way to prevent bone loss is to avoid extraction of all teeth. To keep a few teeth and use them or their roots for a tooth or root-supported overdenture substantially reduces bone loss. Jaws with implant-supported prostheses show less bone loss than jaws with conventional dentures. Mandibular 2-implant overdentures provide patients with better outcomes than do conventional dentures, regarding satisfaction, chewing ability and oral-health-related quality of life. There is no strong evidence for the superiority of one overdenture retention-system over the others regarding patient satisfaction, survival, peri-implant bone loss and relevant clinical factors. Mandibular single midline implant overdentures have shown promising results but long-term results are not yet available. For a maxillary overdenture 4 to 6 implants splinted with a bar provide high survival both for implants and overdenture. CONCLUSION. In edentulous mandibles, 2-implant overdentures provide excellent long-term success and survival, including patient satisfaction and improved oral functions. To further reduce the costs a single midline implant overdenture can be a promising option. In the maxilla, overdentures supported on 4 to 6 implants splinted with a bar have demonstrated good functional results.
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4.
  • Carlsson, Gunnar E, 1930 (författare)
  • Responses of jawbone to pressure.
  • 2004
  • Ingår i: Gerodontology. - 0734-0664. ; 21:2, s. 65-70
  • Forskningsöversikt (refereegranskat)abstract
    • OBJECTIVE: To provide a literature review of bone resorption of edentulous jaws focusing on responses to pressure. BACKGROUND: After the extraction of all teeth in a jaw there is a continuous reduction of the residual ridge. The individual variation of bone resorption is great, and the aetiology is complex and not yet well understood. MATERIALS AND METHODS: A search of the literature published up to May 2003 on bone resorption and pressure was performed using PubMed/Medline. RESULTS: Animal studies have demonstrated that excessive and constant pressure induces bone resorption. Recent experimental research has indicated that bone resorption is a pressure-regulated phenomenon with a lower threshold for continuous than for intermittent pressure. Clinical studies have suggested that residual ridge resorption is due more to the effects of denture wearing than to disuse atrophy. However, the results of leaving out dentures at night are not conclusive. Nor does the literature offer any strong evidence for the so-called combination syndrome, which has been described as a result of unfavourable loading. Clinical studies using multivariate analyses indicate that female gender and systemic factors may be of greater importance than oral and denture factors. Implant-supported prostheses have a bone preserving effect rather than the continuing resorption under complete dentures. CONCLUSIONS: The best way to reduce bone resorption is to avoid total extraction, preserve a few teeth and fabricate overdentures. In edentulous jaws, placement of implant-supported prostheses will lead to less bone loss and may even promote bone growth. To increase our knowledge of residual ridge resorption extended experimental, clinical and statistical methods will be needed, preferably including collaboration between dental and medical researchers.
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5.
  • Carlsson, Gunnar E, 1930 (författare)
  • Some dogmas related to prosthodontics, temporomandibular disorders and occlusion
  • 2010
  • Ingår i: Acta Odontol Scand. ; 68:6
  • Forskningsöversikt (refereegranskat)abstract
    • It is the aim of this paper to give a few examples of dogmas related to prosthodontics and oral implants and to discuss the controversial role of occlusion in the aetiology of temporomandibular disorders. New knowledge is developing at a rapidly increasing rate in dentistry, as in other areas of society. Our lecturers at university taught us many useful things. But, as time goes by, what is still relevant? Some methods are so well established that they deserve to be called dogmas. It is implied that a dogma is not supported by strong evidence, even though it has existed and been practised for a long time. In the era of evidence-based dentistry it is appropriate to scrutinize such issues. A review of the current literature indicates that conflicting opinions exist concerning a number of common procedures in clinical dentistry, mainly due to a scarcity of good studies with unambiguous results. There is therefore a need for more high-quality clinical research in attempting to reach the goal of evidence-based clinical practice. The dental community should take an active part in this process.
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6.
  • Carlsson, Gunnar E, 1930, et al. (författare)
  • The future of complete dentures in oral rehabilitation. A critical review.
  • 2010
  • Ingår i: J Oral Rehabil. ; 37, s. 143-156
  • Forskningsöversikt (refereegranskat)abstract
    • Based on available investigations and current trends in oral rehabilitation published in the dental literature, an attempt is made to describe the possible future role of complete dentures. For edentulous patients, complete dentures have for long been the only prosthodontic treatment option. Whereas a large number of edentulous patients report satisfaction with denture usage, a smaller number are unable to adapt; for such patients, sophistication of clinical and technical processes or quality of denture supporting tissues, appear to have little influence on patient-perceived outcomes. Since the 1980s, osseointegrated dental implants have dramatically improved the therapeutic possibilities, especially so for maladaptive patients. Those able to access such treatment can expect significant improvements in oral functional status and quality of life. While there is a downward trend in edentulism in several countries, it is region-specific, confirming the overriding influence of socioeconomic factors on health status. In most societies, despite ageing populations, the need for complete dentures is not likely to reduce in the near future. Whereas a two- or even a one-implant overdenture for the edentulous mandible is increasingly regarded as a minimum standard of care in many developed countries, its routine prescription for the majority in the world who are disadvantaged is unrealistic; for them, even ‘low-tech’ therapies like conventional dentures are beyond their reach. Improving the conventional management of edentulous patients is a necessity, and requires a keener focus by researchers, educators and clinicians in the developed world on the needs of populations with fewer resources.
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7.
  • Carlsson, Gunnar E, 1930, et al. (författare)
  • What is the evidence base for the efficacies of different complete denture impression procedures? A critical review.
  • 2013
  • Ingår i: Journal of dentistry. - : Elsevier BV. - 1879-176X .- 0300-5712. ; 41:1, s. 17-23
  • Forskningsöversikt (refereegranskat)abstract
    • OBJECTIVES: Many procedures used in prosthodontics, including the materials and methods used for complete denture impressions, lack support of good evidence. The aims were to systematically, and critically, review the literature on complete denture impression materials and methods to identify an impression procedure that can be considered expedient for achieving a satisfactory clinical outcome for complete denture wearers. DATA AND SOURCES: MEDLINE/PubMed and the Cochrane Library were searched for studies on impression procedures used in the clinical fabrication of complete dentures. The search focused on best available evidence with respect to clinical outcome. STUDY SELECTION: PubMed listed 1201 titles for the combination terms of complete denture and impression. Five relevant randomized controlled trials were identified. No review of complete denture impressions was found in the Cochrane Library. RESULTS: Two-step procedures for complete denture impressions dominate all textbooks, teaching and specialist practice, despite an absence of convincing evidence of its superiority. No controlled studies supporting the use of border moulding, post-dam, and functional and mucostatic impressions, were identified. Two studies showed that a one-step method using alginate in a stock tray offers a similar clinical result to more complicated, expensive and time-consuming two-step material and technique combinations. CONCLUSIONS: There was no support for the frequent textbook statement that the two-step procedure is necessary and superior to the one-step method. While some special clinical situations may benefit from other combinations of materials and techniques, the results suggest that the simple and inexpensive one-step procedure can serve the needs of the majority of edentulous patients. CLINICAL SIGNIFICANCE: In spite of the fact that two-step procedures for complete denture impressions dominate textbooks, teaching and specialist practice, the results of this review suggest that a simple and inexpensive one-step procedure can serve the needs of the majority of edentulous patients.
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8.
  • Dahlström, Lars, et al. (författare)
  • Temporomandibular disorders and oral health-related quality of life. A systematic review
  • 2010
  • Ingår i: Acta Odontol Scand. ; 68:2, s. 80-85
  • Forskningsöversikt (refereegranskat)abstract
    • Objective. Oral health-related quality of life (OHRQoL) is considered an important aspect of different oral conditions. It has gained increased attention also in temporomandibular disorders (TMD) in recent years. The purpose was to systematically review the literature on OHRQoL and TMD. Material and methods. A systematic search of the dental literature was performed in Medline and Cochrane library databases, supplemented with a hand search. Various combinations of search terms related to OHRQoL and TMD were used. Among numerous titles found in Medline with different search terms, abstracts and eventually full papers of potentially interest were reviewed. Twelve papers fulfilled the inclusion criteria and were included in the review. Results. Most studies used Oral Health Impact Profile, an instrument with good psychometric properties, for evaluation. All articles described a substantial impact on OHRQoL in TMD patients. Only a small portion of all patients, a few percent, had no impact at all. The difference between men and women was small and not significant. The impact appears to be more pronounced in patients with more signs and symptoms. The perceived impact of pain on OHRQoL seems to be substantial. Two studies found that the impact increased with age among TMD patients. Conclusions. The reviewed studies convincingly demonstrated that OHRQoL was negatively affected among TMD patients.
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9.
  • de Baat, C, et al. (författare)
  • [A survey of implant-retained superstructure types in the edentulous mandible in The Netherlands]
  • 2005
  • Ingår i: Nederlands tijdschrift voor tandheelkunde. - 0028-2200. ; 112:10, s. 363-7
  • Forskningsöversikt (refereegranskat)abstract
    • Treatment of mandibular edentulousness with endosseous permucosal implants has evolved to a common treatment option during the last decades. In The Netherlands, the relative cheap prosthetic treatment of implant-supported overdentures is considered a qualitatively adequate treatment. The aim of the study described in this article was to survey the treatment of edentulous mandibles by fixed implant-supported prostheses and implant-supported overdentures, and to register the different mesostructures used. All clinics of special dental care and all larger clinics for implant dentistry in The Netherlands received a questionnaire. The data provided showed that more than 90% of patients treated with implants because of mandibular edentulousness, were provided with an overdenture. In 85% of cases a bar-clip mesostructure was used. Cost control was the most important reason to choose an overdenture above a fixed implant-supported prosthesis.
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10.
  • Egermark, Inger, 1935, et al. (författare)
  • Svaga samband mellan malocklusion och funktion
  • 2006
  • Ingår i: Tandläkartidningen. ; 98:11, s. 48-53
  • Forskningsöversikt (refereegranskat)abstract
    • An investigation of stomatognathic and orthodontic variables was performed in 402 children, 7, 11 and 15 year old. The same procedure with questionnaire and clinical examination was repeated after 4 to 5 years and after 10 and 20 years. Signs and symptoms of TMD were mainly mild and increased in prevalence with age up to young adult age. There was a substantial fluctuation of TMD signs and symptoms but progression to severe pain and dysfunction was rare. There were significant correlations between reported bruxism and TMD symptoms. Baseline report of tooth grinding at night was a predictor of TMD treatment during the observation period. Every third of the individuals had had some sort of orthodontic treatment in childhood and their attitude to this treatment was more positive when they were 35 years old than at age 25. Those who had undergone orthodontic treatment had less signs and symptoms of temporomandibular disorders (TMD) than the remaining subjects, but the differences were small and in general not statistically significant. Morphological malocclusion and functional malocclusion (occlusal interferences) were only weakly associated with signs and symptoms of TMD. Nevertheless, lateral forced bite between retruded contact position (RCP) and intercuspal position (ICP) and unilateral crossbite may be possible risk factors for development of TMD. In conclusion, the findings of this longitudinal study showed that orthodontic treatment does not imply a risk to develop TMD later in life. Reported tooth-grinding at night as well as unilateral crossbite and lateral forced bite between RCP and ICP in young individuals are factors that deserve consideration as they may imply a risk for developing TMD signs and symptoms later in life.
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