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Pesquisa : C07.793.818.249 [Categoria DeCS]
Referências encontradas : 644 [refinar]
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  1 / 644 MEDLINE  
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PMID:27611759
Autor:Ahmed KE; Whitters J; Ju X; Pierce SG; MacLeod CN; Murray CA
Título:A Proposed Methodology to Assess the Accuracy of 3D Scanners and Casts and Monitor Tooth Wear Progression in Patients.
Fonte:Int J Prosthodont; 29(5):514-21, 2016 Sep-Oct.
ISSN:0893-2174
País de publicação:United States
Idioma:eng
Resumo:PURPOSE: The aim of this study was to detail and assess the capability of a novel methodology to 3D-quantify tooth wear progression in a patient over a period of 12 months. MATERIALS AND METHODS: A calibrated stainless steel model was used to identify the accuracy of the scanning system by assessing the accuracy and precision of the contact scanner and the dimensional accuracy and stability of casts fabricated from three different types of impression materials. Thereafter, the overall accuracy of the 3D scanning system (scanner and casts) was ascertained. Clinically, polyether impressions were made of the patient's dentition at the initial examination and at the 12-month review, then poured in type IV dental stone to assess the tooth wear. The anterior teeth on the resultant casts were scanned, and images were analyzed using 3D matching software to detect dimensional variations between the patient's impressions. RESULTS: The accuracy of the 3D scanning system was established to be 33 µm. 3D clinical analysis demonstrated localized wear on the incisal and palatal surfaces of the patient's maxillary central incisors. The identified wear extended to a depth of 500 µm with a distribution of 4% to 7% of affected tooth surfaces. CONCLUSION: The newly developed 3D scanning methodology was found to be capable of assessing and accounting for the various factors affecting tooth wear scanning. Initial clinical evaluation of the methodology demonstrates successful monitoring of tooth wear progression. However, further clinical assessment is needed.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE; OBSERVATIONAL STUDY
Nome de substância:0 (Dental Casting Investment); 0 (Dental Impression Materials); 12597-68-1 (Stainless Steel); WAT0DDB505 (Calcium Sulfate)


  2 / 644 MEDLINE  
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PMID:27278907
Autor:Lussi A; Schaffner M; Jaeggi T
Endereço:Klinik für Zahnerhaltung, Präventiv- und Kinderzahnmedizin Zahnmedizinische Kliniken der Universität Bern, Bern, Switzerland.
Título:[Diagnosis of dental erosions].
Título:Die Diagnose dentaler Erosionen..
Fonte:Swiss Dent J; 126(5):466-7, 2016.
ISSN:2296-6498
País de publicação:Switzerland
Idioma:ger
Tipo de publicação: JOURNAL ARTICLE


  3 / 644 MEDLINE  
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PMID:26995845
Autor:Mechanic E
Título:Interdisciplinary Treatment Planning "What Would You Do If She Were Your Daughter?".
Fonte:Dent Today; 35(2):108, 110-1, 2016 Feb.
ISSN:8750-2186
País de publicação:United States
Idioma:eng
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE
Nome de substância:0 (Composite Resins); 0 (Dental Materials)


  4 / 644 MEDLINE  
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PMID:26835522
Autor:Fradeani M; Barducci G; Bacherini L
Título:Esthetic rehabilitation of a worn dentition with a minimally invasive prosthetic procedure (MIPP).
Fonte:Int J Esthet Dent; 11(1):16-35, 2016.
ISSN:2198-591X
País de publicação:Germany
Idioma:eng
Resumo:A minimally invasive prosthetic procedure (MIPP) for the esthetic rehabilitation of the complete arch advocates the preservation of enamel to optimize the adhesive bond of the luting agent to both the tooth surface and the etchable ceramic restoration. When esthetic rehabilitation of a worn dentition is required, a MIPP can be selected to reduce the biological cost of removing additional enamel tooth structure. The fundamental steps to achieve this goal are to: (1) increase the vertical dimension of occlusion (VDO); (2) reduce the thickness of the monolithic ceramic material; (3) preserve the enamel during tooth preparation; and (4) adhesively bond the etchable ceramic restorations. This article presents a comprehensive, minimally invasive prosthetic treatment approach for the esthetic rehabilitation of a severely worn dentition using a lithium disilicate all-ceramic material with partial and complete coverage restorations.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE
Nome de substância:0 (Resin Cements); 0 (lithia disilicate); 12001-21-7 (Dental Porcelain)


  5 / 644 MEDLINE  
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PMID:26542166
Autor:Milosevic A; Burnside G
Endereço:Department of Restorative Dentistry, Liverpool University Dental Hospital, Pembroke Place, Liverpool, Merseyside L3 5PS, UK. Electronic address: alexander.milosevic@rlbuht.nhs.uk.
Título:The survival of direct composite restorations in the management of severe tooth wear including attrition and erosion: A prospective 8-year study.
Fonte:J Dent; 44:13-9, 2016 Jan.
ISSN:1879-176X
País de publicação:England
Idioma:eng
Resumo:OBJECTIVES: Survival of directly placed composite to restore worn teeth has been reported in studies with small sample sizes, short observation periods and different materials. This study aimed to estimate survival for a hybrid composite placed by one clinician up to 8-years follow-up. METHODS: All patients were referred and recruited for a prospective observational cohort study. One composite was used: Spectrum(®) (DentsplyDeTrey). Most restorations were placed on the maxillary anterior teeth using a Dahl approach. RESULTS: A total of 1010 direct composites were placed in 164 patients. Mean follow-up time was 33.8 months (s.d. 27.7). 71 of 1010 restorations failed during follow-up. The estimated failure rate in the first year was 5.4% (95% CI 3.7-7.0%). Time to failure was significantly greater in older subjects (p=0.005) and when a lack of posterior support was present (p=0.003). Bruxism and an increase in the occlusal vertical dimension were not associated with failure. The proportion of failures was greater in patients with a Class 3 or edge-to-edge incisal relationship than in Class 1 and Class 2 cases but this was not statistically significant. More failures occurred in the lower arch (9.6%) compared to the upper arch (6%) with the largest number of composites having been placed on the maxillary incisors (n=519). CONCLUSION: The worn dentition presents a restorative challenge but composite is an appropriate restorative material. CLINICAL SIGNIFICANCE: This study shows that posterior occlusal support is necessary to optimise survival.
Tipo de publicação: JOURNAL ARTICLE; OBSERVATIONAL STUDY
Nome de substância:0 (Composite Resins); 0 (Dental Materials)


  6 / 644 MEDLINE  
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PMID:26333037
Autor:Wetselaar P; Lobbezoo F
Endereço:Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands.
Título:The tooth wear evaluation system: a modular clinical guideline for the diagnosis and management planning of worn dentitions.
Fonte:J Oral Rehabil; 43(1):69-80, 2016 Jan.
ISSN:1365-2842
País de publicação:England
Idioma:eng
Resumo:Tooth wear is a multifactorial condition, leading to the loss of dental hard tissues, viz. enamel and dentine. Tooth wear can be divided into the subtypes mechanical wear (attrition and abrasion) and chemical wear (erosion). Because of its multifactorial aetiology, tooth wear can manifest itself in many different representations, and therefore, it can be difficult to diagnose and manage the condition. A systematic approach is a sine qua non. In the below-described tooth wear evaluation system (TWES), all necessary tools for a clinical guideline are present in different modules. This allows the dental clinician, in a general practitioner setting as well as in a referral practice setting, to perform a state-of-the-art diagnostic process. To avoid the risk of a too cumbersome usage, the dental clinician can select only those modules that are appropriate for a given setting. The modules match with each other, which is indispensable and essential when different modules of the TWES are compared. With the TWES, it is possible to recognise the problem (qualifying), to grade its severity (quantifying), to diagnose the likely causes and to monitor (the progress of) the condition. In addition, a proposal for the classification of tooth wear is made. Further, it is possible to determine when to start a treatment, to make the decision which kind of treatment to apply and to estimate the level of difficulty of a restorative treatment.
Tipo de publicação: JOURNAL ARTICLE; REVIEW


  7 / 644 MEDLINE  
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PMID:26798908
Autor:Noble W; Hakim F; Nattestad A; Poe D
Título:Multidisciplinary Management of Severe Tooth Surface Loss: A Case Report.
Fonte:J Calif Dent Assoc; 43(10):579-84, 2015 Oct.
ISSN:1043-2256
País de publicação:United States
Idioma:eng
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE


  8 / 644 MEDLINE  
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PMID:26556515
Autor:Kontaxopoulou I; Alam S
Endereço:King's College London Dental Institute, UK.
Título:Risk Assessment for Tooth Wear.
Fonte:Prim Dent J; 4(3):25-9, 2015 Aug.
ISSN:2050-1684
País de publicação:England
Idioma:eng
Resumo:Tooth wear has an increasing prevalence in the UK population. The aetiology is commonly multifactorial, and the aetiopathology is through a combination of erosion, attrition, abrasion and abfraction. Erosion is associated with intrinsic or extrinsic acids, and therefore subjects with reflux disease and eating disorders are at increased risk. Fruit juice, fruits and carbonated drink consumption, frequency of consumption and specific habits are also risk factors. Attrition is more prevalent in bruxists. Other habits need to be considered when defining the risk of tooth wear. Abrasion is usually associated with toothbrushing and toothpastes, especially in an already acidic environment. Patients with extensive lesions that affect dentin may be at higher risk, as well as those presenting with unstained lesions. Monitoring of the progress of tooth wear is recommended to identify those with active tooth wear. Indices for tooth wear are a helpful aid.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Acids); 0 (Toothpastes)


  9 / 644 MEDLINE  
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PMID:26506808
Autor:Yule PL; Barclay SC
Título:Worn Down by Toothwear? Aetiology, Diagnosis and Management Revisited.
Fonte:Dent Update; 42(6):525-6, 529-30, 532, 2015 Jul-Aug.
ISSN:0305-5000
País de publicação:England
Idioma:eng
Resumo:The incidence of toothwear in the population is increasing, as is the number of referrals regarding this problem to secondary care dental hospital consultants and specialists. This paper outlines current theories in aetiology, diagnosis and management of localized and generalized toothwear, as well as describing clinical tips for assessing such patients.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Dental Materials)


  10 / 644 MEDLINE  
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PMID:26252380
Autor:Pérez-Barbería FJ; Carranza J; Sánchez-Prieto C
Endereço:The James Hutton Institute, Craigiebuckler, AB15 8QH, Aberdeen, Scotland, United Kingdom; Ungulate Research Unit, CRCP, University of Córdoba, Córdoba, Spain; Grupo PAIDI RNM118, Estación Biológica de Doñana, CSIC, Sevilla, 41092, Spain.
Título:Wear Fast, Die Young: More Worn Teeth and Shorter Lives in Iberian Compared to Scottish Red Deer.
Fonte:PLoS One; 10(8):e0134788, 2015.
ISSN:1932-6203
País de publicação:United States
Idioma:eng
Resumo:Teeth in Cervidae are permanent structures that are not replaceable or repairable; consequently their rate of wear, due to the grinding effect of food and dental attrition, affects their duration and can determine an animal's lifespan. Tooth wear is also a useful indicator of accumulative life energy investment in intake and mastication and their interactions with diet. Little is known regarding how natural and sexual selection operate on dental structures within a species in contrasting environments and how these relate to life history traits to explain differences in population rates of tooth wear and longevity. We hypothesised that populations under harsh environmental conditions should be selected for more hypsodont teeth while sexual selection may maintain similar sex differences within different populations. We investigated the patterns of tooth wear in males and females of Iberian red deer (Cervus elaphus hispanicus) in Southern Spain and Scottish red deer (C. e. scoticus) across Scotland, that occur in very different environments, using 10343 samples from legal hunting activities. We found higher rates of both incisor and molar wear in the Spanish compared to Scottish populations. However, Scottish red deer had larger incisors at emergence than Iberian red deer, whilst molars emerged at a similar size in both populations and sexes. Iberian and Scottish males had earlier tooth depletion than females, in support of a similar sexual selection process in both populations. However, whilst average lifespan for Iberian males was 4 years shorter than that for Iberian females and Scottish males, Scottish males only showed a reduction of 1 year in average lifespan with respect to Scottish females. More worn molars were associated with larger mandibles in both populations, suggesting that higher intake and/or greater investment in food comminution may have favoured increased body growth, before later loss of tooth efficiency due to severe wear. These results illustrate how independent selection in both subspecies, that diverged 11,700 years BP, has resulted in the evolution of different longevity, although sexual selection has maintained a similar pattern of relative sex differences in tooth depletion. This study opens interesting questions on optimal allocation in life history trade-offs and the independent evolution of allopatric populations.
Tipo de publicação: COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T



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