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1.
J Dent ; 43(9): 1125-1131, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26144188

ABSTRACT

OBJECTIVES: The aim of the present study is to evaluate risk factors influencing the success rates of pulpotomies both in young and adult populations. METHODS: Pulpotomies (n=273) performed by a single endodontic specialist were analyzed, and data on success rates were collected. Additionally, possible explanatory variables were noted such as: age, gender, clinical findings (teeth, type of restoration after pulpotomy), radiographic findings (dentin bridge formation) and systemic conditions. The follow-up period varied from 1 to 29 years, and the results were analyzed by Kaplan-Meier survival curves and also by Cox regression. RESULTS: Age at the time of pulpotomy ranged from 8 to 79 and had not influenced the success rates (p=0.35). The formation of dentin bridge had a strong protective effect (hazard ratio-HR=0.16, p<0.001). The prosthetic crown restorations following pulpotomy had the smallest failure rate, and amalgam has not increased the risk of failure significantly in relation to prosthesis. Resin composite restorations following pulpotomy increased in 263% the risk of failure (HR=3.63, p<0.001). CONCLUSION: This study allowed inferences that pulpotomy may be a successful treatment at any age, and not only for young permanent teeth. It was also possible to conclude that the use of direct composite restorations following pulpotomies is associated with higher failure rates.


Subject(s)
Pulpotomy/methods , Pulpotomy/statistics & numerical data , Acrylic Resins , Adolescent , Adult , Aged , Child , Composite Resins , Dental Amalgam , Dental Pulp Capping/methods , Dental Pulp Capping/statistics & numerical data , Dental Restoration Failure , Follow-Up Studies , Humans , Kaplan-Meier Estimate , Middle Aged , Polyurethanes , Retrospective Studies , Risk , Risk Factors , Tooth/diagnostic imaging , Young Adult
2.
J Dent Child (Chic) ; 75(1): 20-3, 2008.
Article in English | MEDLINE | ID: mdl-18505643

ABSTRACT

PURPOSE: The purpose of this study, which is a series of consecutive case reports, was to describe and evaluate the protocol used in the treatment of pulpal necrosed of primary molars, used by the dental service of Social Support Foundation of the Moinhos de Vento Hospital, Porto Alegre, RS, Brazil. METHODS: Eighteen primary molars in 15 children, ranging from 4 to 10 years of age, were endodontically treated using ultrasonic instrumentation. RESULTS: Clinical and radiographic controls showed a success rate of 94%, considering an evaluation time of 14.1+/-6.3 months. CONCLUSIONS: The use of ultrasonic instrumentation in primary molars with pulpal necrosis succeeded in reducing appointment time and showed a high success rate.


Subject(s)
Dental Pulp Necrosis/therapy , Root Canal Preparation/instrumentation , Ultrasonic Therapy/instrumentation , Child , Child, Preschool , Female , Humans , Male , Molar , Pulpectomy/instrumentation , Time Factors , Tooth, Deciduous
3.
Cad Saude Publica ; 24(5): 1071-81, 2008 May.
Article in Portuguese | MEDLINE | ID: mdl-18461236

ABSTRACT

The present study evaluated the dental care plan offered to 4,000 employees of a private hospital and their respective families. The analysis covered three stages: (1) baseline (control), when dental care was provided by an outsourced company with a network of dentists paid for services, (2) a renegotiation of costs with the original dental care provider, and (3) provision of dental care by the hospital itself, through directly hired dentists on regular salaries. Monthly economic and clinical data were collected for this research. The dental plan renegotiation reduced costs by 37% in relation to baseline, and the hospital's own dental service reduced costs by 50%. Renegotiation led to a 31% reduction in clinical procedures, without altering the dental care profile; the hospital's own dental service did not reduce the total number of clinical procedures, but modified the profile of dental care, since procedures related to the causes of diseases increased and surgical/restorative procedures decreased.


Subject(s)
Health Benefit Plans, Employee/economics , Health Expenditures/statistics & numerical data , Insurance, Dental/economics , Consumer Behavior/statistics & numerical data , Cost Control/methods , Dental Health Services/economics , Humans , Insurance Coverage , Outsourced Services/economics , Private Sector
4.
Cad. saúde pública ; 24(5): 1071-1081, maio 2008. graf, tab
Article in Portuguese | LILACS | ID: lil-481457

ABSTRACT

O presente estudo avaliou a assistência odontológica fornecida a cerca de 4 mil funcionários e dependentes de um hospital privado. A análise foi dividida em três momentos: (1) linha de base (controle): quando a assistência odontológica fornecida era terceirizada por uma empresa que operava com rede credenciada, (2) quando houve uma renegociação de preços com a prestadora original e (3) quando a assistência era feita por um serviço de odontologia próprio sem a intermediação de uma prestadora e com profissionais remunerados através de valores fixos. Foram coletados mensalmente dados econômicos e sobre o tipo e número de procedimentos realizados. A renegociação de preços reduziu os custos em cerca de 37 por cento em relação à linha de base, ao passo que o serviço próprio reduziu os custos em 50 por cento. A renegociação de preços provocou uma diminuição de 31 por cento no número de procedimentos realizados sem modificar o perfil da assistência, ao passo que o serviço próprio não causou diminuição na quantidade de serviços, mas modificou o padrão da assistência, pois se aumentaram os procedimentos relacionados com as causas das patologias e reduziram-se os procedimentos cirúrgico-restauradores.


The present study evaluated the dental care plan offered to 4,000 employees of a private hospital and their respective families. The analysis covered three stages: (1) baseline (control), when dental care was provided by an outsourced company with a network of dentists paid for services, (2) a renegotiation of costs with the original dental care provider, and (3) provision of dental care by the hospital itself, through directly hired dentists on regular salaries. Monthly economic and clinical data were collected for this research. The dental plan renegotiation reduced costs by 37 percent in relation to baseline, and the hospital's own dental service reduced costs by 50 percent. Renegotiation led to a 31 percent reduction in clinical procedures, without altering the dental care profile; the hospital's own dental service did not reduce the total number of clinical procedures, but modified the profile of dental care, since procedures related to the causes of diseases increased and surgical/restorative procedures decreased.


Subject(s)
Cost Savings , Dental Care , Health Expenditures , Health Maintenance Organizations , Occupational Health , Insurance, Dental/economics , Practice Management, Dental
5.
Gen Dent ; 56(1): 85-93; quiz 94-5, 111-2, 2008.
Article in English | MEDLINE | ID: mdl-18254567

ABSTRACT

This in vitro study sought to evaluate the bond strength and interfacial morphology of composite restorations in primary and permanent teeth that utilized different adhesive systems. In this study, 180 samples (n = 15 per subgroup) were submitted to shear bond strength tests while 72 samples were analyzed with scanning electron microscopy (n = 6 per subgroup). Fifty-four blocks of permanent enamel, 54 blocks of permanent dentin, 54 blocks of primary enamel, and 54 blocks of primary dentin were randomly assigned to three groups for bonding. All of the blocks received a resin composite restoration made with a matrix after the application of the dental bonding systems, according to the manufacturer's instructions. The shear bond strength test found no statistical differences among the tissues or the adhesive systems used. However, a difference in quality of the interfacial seal was observed when Single Bond restorations were compared to restorations bonded with AdheSE and Prompt-L-Pop. The Single Bond system formed an authentic hybrid layer that can ensure adequate adhesion. The other adhesive systems showed an interface with inadequate sealing and even with no sealing. The self-etching systems must be used with caution in composite restorations because the quality of the hybrid layer formed is as important as the bond strength when determining the efficacy of the adhesive.


Subject(s)
Dental Bonding/methods , Dental Enamel/ultrastructure , Dental Marginal Adaptation , Dentin-Bonding Agents/chemistry , Dentin/ultrastructure , Acrylic Resins/chemistry , Analysis of Variance , Bisphenol A-Glycidyl Methacrylate/chemistry , Composite Resins/chemistry , Dental Enamel/drug effects , Dental Restoration, Permanent/methods , Dental Stress Analysis , Dentin/drug effects , Dentin Permeability/drug effects , Dentition, Permanent , Humans , In Vitro Techniques , Resin Cements/chemistry , Shear Strength , Tooth, Deciduous/ultrastructure
6.
Gen Dent ; 54(1): 21-7, 2006.
Article in English | MEDLINE | ID: mdl-16494116

ABSTRACT

This in vitro study sought to evaluate the action of a pediatric medication with low pH and high acidity in primary enamel submitted (or not) to daily applications of fluoride dentifrice. For this study, 70 blocks of primary molars (n = 10 per subgroup) were analyzed using scanning electron microscopy. Six subgroups (two control and four experimental) were submitted to different treatments for 10 days. Microscopically, the enamel blocks of the subgroups that received medication and fluoride demonstrated the largest areas of partially or totally conditioned superficial enamel. The opposite was observed in the subgroups that were not exposed to fluoride; erosions in the internal enamel and in the transition zone between deep enamel and dentine showed superior percentiles. It was concluded that the medication modified the morphology of the primary enamel and that the use of fluoride was able to reduce the erosive effect of the formulation.


Subject(s)
Dental Enamel/drug effects , Histamine H1 Antagonists, Non-Sedating/adverse effects , Loratadine/adverse effects , Tooth Erosion/chemically induced , Tooth, Deciduous/drug effects , Cariostatic Agents/pharmacology , Dental Enamel/ultrastructure , Dental Enamel Solubility , Dentifrices/pharmacology , Fluorides/pharmacology , Humans , Hydrogen-Ion Concentration , Microscopy, Electron, Scanning , Molar , Statistics, Nonparametric , Tooth Demineralization/prevention & control , Tooth Erosion/prevention & control
7.
Rev. dent. press ortodon. ortopedi. facial ; 10(3): 87-96, maio-jun. 2005. ilus, tab, graf
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-437416

ABSTRACT

O aço inoxidável austenítico é utilizado para confecção de dispositivos ortodônticos e contém cerca de 8-10% de níquel em sua composição, metal este responsável por reações alérgicas de hipersensibilidade. Acredita-se que a liberação de níquel dos dispositivos metálicos pode provocar dermatites de contato em pacientes suscetíveis. Este estudo laboratorial avaliou a influência de três variáveis na liberação de níquel: 1)o tipo de liga do braquete; 2)o tipo de solução de imersão e 3) o esforço mecânico nas canaletas dos braquetes de aço inoxidável austenitico. Foram avaliados seis grupos experimentais e dois grupos controle. As amostras foram imersas em tubos de ensaio contendo saliva artificial ou solução salina, sendo mantidas sob agitação e temperatura constante (37°). A quantidade de níquel presente nas soluções foi avaliada com espectrofotômetro de absorção atômica (Varian - Spectra A55) em dois momentos: após uma semana e após duas semanas. Os resultados revelaram que os braquetes de aço inoxidável com baixo teor de níquel apresentaram menor liberação deste elemento. Foi possível constatar que o tipo de solução alterou o padrão de liberação de níquel pelos dispositivos avaliados. O esforço mecânico aplicado sobre os braquetes de aço inoxidável austenitico não alterou a quantidade de níquel liberada.


Subject(s)
Orthodontic Brackets , Orthodontic Brackets/adverse effects , Orthodontic Brackets , In Vitro Techniques , Metals
8.
Gen Dent ; 52(5): 416-8, 2004.
Article in English | MEDLINE | ID: mdl-15544218

ABSTRACT

Rapid orthodontic extrusion is indicated for cases involving biological space invasion of the periodontal ligament in which the surgical increase of the clinical crown can compromise esthetics or the support of the adjacent teeth. This article presents the case report of a tooth with radicular perforation 1.0 mm below the bone crest. A procedure to restore the biological distances was necessary. Rapid orthodontic extrusion of the affected tooth, with anchorage in the adjacent osseointegrated implants, was selected.


Subject(s)
Dental Implants , Orthodontic Appliances , Tooth Movement Techniques/instrumentation , Bicuspid , Crown Lengthening/methods , Humans , Mandible , Orthodontic Appliance Design
9.
Cad Saude Publica ; 19(1): 237-43, 2003.
Article in Portuguese | MEDLINE | ID: mdl-12700803

ABSTRACT

Increased overall exposure of the Brazilian population to fluoridated water and fluoridated dentifrices has been identified as the main factor in the reduction of caries prevalence. Thus, the objective of the present study was to evaluate the distribution of caries in a group of 437 children ranging from 6 to 12 years of age, residing in a city without a water supply fluoridation system and without a preventive dentistry program, with the aim of orienting future health measures towards improved cost-effectiveness. Clinical examination was performed on all the children, focusing on the indices defs (decayed, extracted, and filled primary dentition surfaces) and DMFS (decayed, missing, and filled permanent dentition surfaces), representing the number of dental surfaces that were either decayed, missing or with extraction indicated, or restored. Analysis of accumulated disease frequency in relation to the population showed that 37% of the children presented 70% of all the tooth disease, with a mean defs + DMFS of 28.6. This distribution demonstrates the phenomenon of polarization, in which most of the disease and treatment needs are concentrated in a small portion of the population.


Subject(s)
Dental Caries/epidemiology , Fluoridation , Brazil/epidemiology , Child , DMF Index , Dental Caries/prevention & control , Dental Caries/therapy , Female , Humans , Male , Oral Health , Prevalence
10.
Cad. saúde pública ; 19(1): 237-243, jan.-fev. 2003. tab, graf
Article in Portuguese | LILACS | ID: lil-331208

ABSTRACT

A maior exposiçäo da populaçäo brasileira ao flúor da água e dos dentifrícios fluoretados tem sido apontada como principal responsável pela reduçäo da prevalência de cárie. Dessa forma, o objetivo do presente trabalho foi avaliar a distribuiçäo da cárie em uma populaçäo de 437 crianças, com idades entre 6 e 12 anos, residentes em uma cidade sem sistema de fluoretaçäo da água de abastecimento e sem programa odontológico preventivo, podendo, com isso, orientar futuras ações de saúde com melhor desempenho no que diz respeito à relaçäo custo-efetividade. Para tanto, foi realizado exame clínico em todas as crianças para avaliaçäo dos índices CPO-S e ceo-s, o que representa o número de superfícies dentárias cariadas, perdidas ou com extraçäo indicada e restauradas. A análise de freqüência acumulada da doença em relaçäo à freqüência acumulada da populaçäo mostrou que 37 por cento das crianças concentravam 70 por cento da doença, com um ceo-s + CPO-S médio de 28,6. Essa distribuiçäo evidencia o fenômeno da polarizaçäo, no qual uma pequena parcela da populaçäo concentra a maior parte da doença e das necessidades de tratamento


Subject(s)
Dental Caries/epidemiology , DMF Index
11.
Gen Dent ; 51(2): 120-6, 2003.
Article in English | MEDLINE | ID: mdl-15055683

ABSTRACT

This study evaluated the results obtained by two space-regaining devices in children with mixed dentition and premature loss of mandibular deciduous molars. There were no statistical differences between the amount of space regained by each device; however, the distalizing screw regained space at a faster rate.


Subject(s)
Orthodontic Appliance Design , Tooth Movement Techniques/instrumentation , Cephalometry , Child , Dental Arch/pathology , Dentition, Mixed , Female , Humans , Male , Malocclusion/etiology , Malocclusion/therapy , Mandible/pathology , Molar/pathology , Statistics, Nonparametric , Tooth Exfoliation/complications , Tooth, Deciduous/pathology
12.
Cad Saude Publica ; 18(6): 1551-9, 2002.
Article in Portuguese | MEDLINE | ID: mdl-12488881

ABSTRACT

The Brazilian dental care sector is facing a paradoxical crisis characterized by a surplus of dentists and a large contingent of people lacking dental care, thus highlighting the need to improve management strategies. One necessary step is to analyze the various payment schemes for dental services. This paper reviews two important approaches, fee for service and capitation, and considers the impacts and consequences of payment strategies on the dental care system.


Subject(s)
Capitation Fee , Dental Care/standards , Dental Health Services/economics , Fees, Dental , Costs and Cost Analysis , Delivery of Health Care/economics , Dental Auxiliaries/economics , Dental Care/economics , Dental Health Services/standards , Dentists , Humans , Inservice Training/economics , Patient Satisfaction , Salaries and Fringe Benefits
13.
Cad. saúde pública ; 18(6): 1551-1559, nov.-dez. 2002. tab, graf
Article in Portuguese | LILACS | ID: lil-326991

ABSTRACT

O setor odontológico está atravessando uma fase paradoxal, caracterizada pelo excesso de profissionais no mercado e pelo grande contingente populacional carente de tratamentos odontológicos. Com isso, há a necessidade crescente de serem aprimoradas habilidades gerenciais a fim de possibilitar a melhor organizaçäo do setor. Nesse contexto, o estudo das várias formas de remuneraçäo dos serviços de saúde bucal assume papel relevante. Este artigo aborda duas importantes formas de pagamento (taxas por serviço e capitaçäo) aos prestadores de serviço de saúde bucal, analisando impactos e conseqüências para o sistema de assistência odontológica


Subject(s)
Humans , Capitation Fee , Dental Care , Dental Health Services , Fees, Dental , Costs and Cost Analysis , Delivery of Health Care , Dental Auxiliaries , Dental Care , Dental Health Services , Dentists , Inservice Training , Patient Satisfaction , Salaries and Fringe Benefits
14.
J Oral Pathol Med ; 31(8): 473-80, 2002 Sep.
Article in English | MEDLINE | ID: mdl-12220355

ABSTRACT

BACKGROUND: Animal studies have suggested that home bleaching agents can cause morphological alterations and changes in the proliferative rate of oral epithelium. METHODS: A bleaching agent containing 10% carbamide peroxide with carbopol was used in 11 women (five smokers and six non-smokers) during a 5-week period. Two biopsies were performed, one of them 15 days before the beginning of the home bleaching treatment and the other immediately after the 5-week bleaching treatment. Two analyses were performed in the histological sections obtained from the biopsies: epithelium morphometry and assessment of the epithelium's proliferative activity by proliferating cell nuclear antigen (PCNA) immunohistochemistry. RESULTS: The home bleaching agent increases epithelium thickness and the PCNA index in both smoker and non-smoker patients. CONCLUSION: Carbamide peroxide (10%) caused an augmentation in the proliferative activity within the basal and parabasal layers of the gingival epithelium, resulting in a change in this tissue's morphometry.


Subject(s)
Gingiva/pathology , Oxidants/therapeutic use , Smoking , Tooth Bleaching , Urea/analogs & derivatives , Acrylic Resins , Adult , Biopsy , Carbamide Peroxide , Cell Division/drug effects , Coloring Agents , Connective Tissue/drug effects , Connective Tissue/pathology , Dental Plaque/prevention & control , Drug Combinations , Epithelial Cells/drug effects , Epithelial Cells/pathology , Epithelium/drug effects , Epithelium/pathology , Female , Fluorescent Dyes , Follow-Up Studies , Gingiva/drug effects , Humans , Immunohistochemistry , Matched-Pair Analysis , Oral Hygiene , Peroxides/therapeutic use , Polyvinyls/therapeutic use , Proliferating Cell Nuclear Antigen/analysis , Statistics as Topic , Urea/therapeutic use
15.
JBP, j. bras. odontopediatr. odontol. bebê ; 4(22): 473-8, dez. 2001-jan. 2002. ilus, graf, CD-ROM
Article in Portuguese | LILACS, BBO - Dentistry | ID: biblio-852071

ABSTRACT

O presente estudo teve como proposta investigar o tipo de escova dental, manual (Squish Grip - Oral-B) ou elétrica (Braun Oral-B Ultra Plaque Remover), mais eficaz na remoção de placa bacteriana. O trabalho envolveu 14 crianças com idades entre 10 e 12 anos, portadoras de dentição mista, selecionadas e submetidas a exame clínico, orientação de higiene bucal, profilaxia dental e revelação de placa para determinação dos índices da mesma. De acordo com os resultados obtidos, a escova elétrica e a escova manual foram igualmente eficazes na remoção da placa bacteriana em crianças de 10 a 12 anos de idade


Subject(s)
Humans , Male , Female , Child , Dental Plaque , Dental Plaque Index , Toothbrushing , Dentition, Mixed
16.
Rev. dent. press ortodon. ortop. maxilar ; 6(6): 37-43, nov.-dez. 2001. ilus, tab, graf
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-308186

ABSTRACT

O presente estudo avaliou o tipo de escova dental, manual ou elétrica, que se mostra mais eficaz na remoçäo da placa bacteriana em pacientes portadores de aparelho ortodôntico fixo. As escovas avaliadas foram cross action (oral B) e braun oral-b ultra plaque remover. Quinze pacientes em fase de dentadura permanente, portadores de aparelhagem ortodôntica fixa, foram selecionados e submetidos a exame clínico, orientaçäo de higiene bucal, profilaxia dental e revelaçäo de placa para determinaçäo do índice de placa visível. Os resultados mostraram superioridade da escova manual sobre a elétrica na remoçäo da placa bacteriana em todas as regiöes analisadas nas faces vestibulares dos dentes que contiham bráquetes


Subject(s)
Humans , Male , Female , Orthodontic Appliances , Toothbrushing
17.
Pesqui. odontol. bras ; 15(4): 296-301, out.-dez. 2001. graf, tab
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-302525

ABSTRACT

A proposta deste estudo foi comparar a eficácia da remoçäo de placa bacteriana pelas escovaçöes elétrica e manual. Quinze crianças portadoras de dentadura decídua e 14 crianças portadoras de dentadura mista foram divididas em dois grupos e, aleatoriamente, designadas a utilizar a escova manual ou a escova elétrica. Na primeira sessäo, foi realizada completa remoçäo de placa bacteriana e após, as crianças permaneceram 24 horas sem escovar os dentes. Na segunda sessäo, foi feita revelaçäo de placa bacteriana e computaçäo de seu índice para todas as faces vestibulares e linguais dos dentes. Depois, todos os participantes escovaram os dentes com a escova predeterminada. A próxima etapa foi a revelaçäo e mediçäo da placa residual. Decorridos 7 dias, as crianças trocaram para a outra escova dental e os mesmos procedimentos foram realizados. De acordo com os resultados, näo houve diferença estatisticamente significante na remoçäo de placa bacteriana quando as escovas foram usadas por crianças em fase de dentiçäo mista. No entanto, a escova elétrica removeu significativamente mais placa bacteriana nas faces linguais das crianças com dentiçäo decídua


Subject(s)
Humans , Male , Female , Child , Dental Plaque Index , Dentition, Mixed , Toothbrushing/instrumentation , Toothbrushing/methods , Dental Plaque/prevention & control , Tooth, Deciduous
18.
Rev. ABO nac ; 9(1): 33-7, fev.-mar. 2001. tab
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-296651

ABSTRACT

O presente estudo teve como proposta investigar o tipo de escova dental (manual e elétrica da marca Oral - B) mais eficaz na remoçäo da placa bacteriana. O trabalho envolveu 15 crianças com 4 e 5 anos de idade, portadoras de dentiçäo decídua, selecionadas e submetidas a exame clínico, orientaçäo de higiene oral, profilaxia dental e revelaçäo de placa para determinaçäo dos índices da mesma. De acordo com os resultados da pesquisa, a escova elétrica foi mais eficaz na remoçäo de placa bacteriana das faces palatinas/linguais em crianças de 4 a 5 de idade


Subject(s)
Child , Dental Plaque , Toothbrushing/methods , Toothbrushing/instrumentation , Tooth, Deciduous
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