ABSTRACT
The aim of this in vitro study was to investigate the erosive effect of a soft drink on primary teeth before and after restoration. Enamel blocks were obtained from 64 primary canines (N = 144) and divided into 3 groups (n = 48): 1, erosive challenge before and after restoration; 2, erosive challenge after restoration; and 3, no erosive challenge (control). The blocks received standardized preparations and were restored with 1 of 4 materials (n = 12): composite resin, bulk-fill composite resin, conventional glass ionomer cement, or resin-modified glass ionomer cement. The erosive challenge consisted of immersing the blocks in a cola soft drink for 1 minute at 25°C, 4 times a day for 5 days. The microhardness, roughness, marginal infiltration, and marginal adaptation of the specimens in all 3 groups were evaluated. Data were analyzed with the Kruskal-Wallis and Bonferroni tests. The results showed that the erosive challenge significantly altered all of the evaluated properties of all of the restorative materials (P < 0.05). The erosive challenge decreased the microhardness and marginal adaptation and increased the roughness and marginal infiltration of the tested materials. Composite resin had the highest values for microhardness and marginal adaptation as well as the lowest roughness value and dye infiltration score both with and without the erosive challenge. Subjecting teeth to erosive challenge before and after restoration altered the enamel microhardness and roughness significantly more than did erosive challenge only after restoration. Composite resin was the material least affected by the erosive challenge.
Subject(s)
Dental Restoration, Permanent , Tooth Erosion , Composite Resins , Glass Ionomer Cements , Humans , Resin Cements , Tooth, DeciduousABSTRACT
This case report describes the treatment of a patient who had molar-incisor hypomineralization associated with dental fluorosis, a diagnosis established through a comprehensive review of the clinical record, an intraoral clinical examination, and assessment of photographic records. First, dental hypersensitivity was treated with fluoride varnish, which was applied separately to each dental quadrant. Subsequently, the functional and esthetic reconstruction of the permanent maxillary central incisors was completed in a single session through the placement of direct composite resin veneers. After the treatment, the patient was reexamined monthly for 12 months to evaluate the durability of the restorations. At the 12-month follow-up, no fractures or pigmentations were observed, and only a slight loss of brightness of the restorations was noted. The dental hypersensitivity had been eliminated. When an adhesive restorative technique with composite resin is well executed, it is possible to obtain satisfactory and long-lasting esthetics and relief of painful symptoms.
Subject(s)
Dental Enamel Hypoplasia , Fluorosis, Dental/therapy , Composite Resins , Dental Restoration, Permanent , Dental Veneers , Esthetics, Dental , Humans , Incisor , MolarABSTRACT
Hypoplasia is an enamel developmental defect characterized by a quantitative disturbance in the formation of mineralized tissue. Among its etiologic factors are local and systemic causes, trauma and dental infections being the most common. This case report presents the functional and esthetic rehabilitation of a 12-year-old boy diagnosed with hypoplasia in the maxillary central incisors. His chief complaints were the unesthetic appearance and sensitivity of the affected teeth. The teeth were restored with composite resin placed with the aid of a direct silicone palatal guide, and the patient was followed up for 12 months. The treatment plan allowed the restoration and improvement of function and esthetics, resulting in patient satisfaction.
Subject(s)
Dental Enamel Hypoplasia , Esthetics, Dental , Child , Composite Resins , Dental Enamel , Humans , Incisor , MaleABSTRACT
Abstract Even with all the preventive measures used in pediatric dentistry, early childhood caries is a problem faced daily in pediatric dentistry, and mainly affects the vestibular surface of the anterior teeth in children younger than 71 months. The present study reports a case of aesthetic-functional rehabilitation per formed with the help of laboratory-made strip crows and composite in a 5-year-old patient affected by multiple lesions of early childhood caries. Composite resin restorations were performed on all upper anterior teeth to restore aesthetics and function, offering a better quality of life for the child and her family. The preparation of composite resin crowns with the help of strip crowns resulted in a shorter clinical time, a better aesthetic result and the restoration of the patient's smile and self-esteem.
Resumen A pesar de todas las medidas preventivas utilizadas en odontología pediá trica, caries de la primera infancia es un problema que enfrentan todos los días en la odontología pediátrica, y sobre todo afecta a la cara vestibular de los dientes anteriores en niños menores de 71 meses. El presente es tudio reporta un caso de rehabilitación estético-funcional realizado con la ayuda de coronas de acetato hechas en laboratorio y resina compuesta en un paciente de 5 años de edad afectado por múltiples lesiones de caries en la primera infancia. Se realizaron restauraciones de resina compuesta en todos los dientes anteriores superiores para restaurar la estética y la función, ofreciendo una mejor calidad de vida para el niño y su familia. La preparación de coronas de resina compuesta con la ayuda de coronas de tiras dio como resultado un tiempo clínico más corto, un mejor resultado estético y la restauración de la sonrisa y la autoestima del paciente.
Resumo Mesmo com todas as medidas preventivas utilizadas em odontopediatria, a cárie pre coce da infância, consiste um problema enfrentado diariamente pelo Odontopediatra, e acomete principalmente a superfície vestibular de dentes anteriores em crianças menores de 71 meses. Este estudo relata um caso de reabilitação estética-funcional em uma paciente de 5 anos de idade. Foram realizadas restaurações de resina com posta em todos os dentes superiores anteriores para restabelecimento da estética e função, oferecendo melhor qualidade de vida a criança e seu núcleo familiar. Com a confecção de coroas de resina composta conseguiu-se menor tempo clínico, bom re sultado estético e o restabelecimento do sorriso e auto-estima da paciente.
ABSTRACT
Abstract Dental fluorosis is a developmental defect of enamel caused by chronic and excessive fluoride intake resulting in a hypomineralized enamel with increased porosity. It is clinically identified as spots ranging from mild white lines to opaque spots covering all or part of the enamel surface and breakdown after teeth eruption. However, the clinical definition of the fluorosis degree in teeth is not an easy task, having been presented many indices that generally qualify the severity degree with variations in the details. As the choice of treatment is closely linked to the defect severity, the purpose of this article is to present the clinical aspects of dental fluorosis represented through the Thylstrup-Fejerskov Index. The severity scores are presented according to histological features and the differences between them will be discussed in order to enable the dentist to correctly diagnose and choose the most appropriate treatment for the patient with DF.
Resumo A fluorose dental (FD) é um defeito de desenvolvimento do esmalte causado pela ingestão crônica e excessiva de flúor, resultando em um esmalte hipomineralizado com maior porosidade. Clinicamente é identificada como manchas que vão desde delicadas linhas brancas até manchas opacas que cobrem parte ou toda a superfície do esmalte podendo sofrer pigmentações ou fraturas após a irrupção. No entanto, a definição clínica do grau de comprometimento dos dentes não é uma tarefa fácil e tem sido apresentada na forma de índices que geralmente qualificam o grau de severidade com maior ou menor detalhes. Como a escolha do tratamento está intimamente ligada à gravidade do defeito, o objetivo deste artigo é apresentar os aspectos clínicos da fluorose dental representadas por meios do índice de Thylstrup-Fejerskov (1978). Os escores de severidade são apresentadas de acordo com as características histológicas e as diferenças entre eles serão discutidas a fim de permitir ao dentista diagnosticar corretamente e escolher o tratamento mais adequado para o paciente com FD.
Resumen La fluorosis dental (FD) es un defecto del desarrollo del esmalte dental causado por la ingesta crónica y excesiva de fluoruro, que resulta en un esmalte hipomineralizado y poroso. Clínicamente se manifiesta desde manchas y delicadas líneas blancas hasta manchas opacas que cubren parte o toda la superficie del esmalte, el cual es susceptible a pigmentaciones o fracturas post-eruptivas. Sin embargo, establecer el grado de compromiso de los dientes no es una tarea fácil y para esto se han presentado índices que determinan el grado de severidad con mayor o menor detalle. Como la decisión de tratamiento está estrechamente relacionada a la gravedad del defecto, el objetivo de este artículo es presentar los aspectos clínicos de la fluorosis dental de acuerdo al índice de Thylstrup-Fejerskov (1978). Los grados de severidad son representados de acuerdo con las características histológicas y las diferencias entre ellos son discutidas para que el odontólogo pueda diagnosticas correctamente y escoger el tratamiento más adecuado para el paciente con FD.
ABSTRACT
This study sought to assess the use of chlorhexidine with several excipients as a dentin surface treatment and its effect on marginal adaptation of class V restorations with current-generation dentin bonding agents. A total of 120 human third molars were selected and allocated into 12 groups, with standardized buccal class V restorations randomly divided into preconditioned dentin rinsed with: water; water + chlorhexidine; ethanol; or ethanol + chlorhexidine. After rinsing of dentin (previously conditioned with 35% phosphoric acid) with the test solutions, the Adper single bond 2, prime and bond 2.1, and Excite bonding systems were applied randomly. Restorations were performed with Filtek™ Z350 XT composite resin. The resulting specimens were subjected to thermal and mechanical load cycling. Quantitative analysis of marginal adaptation was performed on epoxy replicas by means of scanning electron microscopy. Results were assessed by means of the Kruskal-Wallis test (percentages of continuous margins) and Wilcoxon test (differences between percentages of continuous margins before and after thermal cycling and mechanical loading), at a significance level of p < 0.05. Outcomes in the chlorhexidine-treated groups were not superior to those obtained with other treatments.
Subject(s)
Dental Bonding/methods , Dental Marginal Adaptation , Dental Restoration, Permanent/classification , Dentin-Bonding Agents/chemistry , Dentin/ultrastructure , Acetone/chemistry , Acid Etching, Dental/methods , Chlorhexidine/pharmacology , Composite Resins/chemistry , Dental Cements/chemistry , Dental Enamel/ultrastructure , Dental Polishing/methods , Dentin/drug effects , Ethanol/pharmacology , Humans , Methacrylates/chemistry , Microscopy, Electron, Scanning , Phosphoric Acids/chemistry , Polymethacrylic Acids/chemistry , Replica Techniques , Smear Layer , Solvents/pharmacology , Stress, Mechanical , Surface Properties , Temperature , WaterABSTRACT
A arte de lidar com o semelhante vai além do simples contato de um prestador de serviços para o recebedor do serviço, afinal a boca é apenas uma parte do indivíduo. O projeto do PET- SAÚDE proporciona ao acadêmico a experiência de desbravar o mundo além dos muros da faculdade, o que é simplesmente sensacional. Essa é a melhor maneira de formar o profissional de odontologia, com uma visão humanista, crítica e reflexiva. Propiciando ao aluno a oportunidade de deparar-se com a realidade dos postos públicos e desenvolver as competências gerais do cirurgião-dentista, como a comunicação com outros profissionais, vivenciando a multiprofissionalidade, interdisciplinaridade e transdisciplinaridade, importantes na promoção da saúde. Durante as visitas aos municípios foram executadas as atividades de atenção à saúde com ações de prevenção e de reabilitação. Mesmo diante de um cenário de carência de recursos, a falta de determinados materiais, comuns na clínica diária, não impossibilitou a realização dos procedimentos e do cuidar. Esta experiência é imprescindível, pois auxilia na tomada de decisões e estabelecimento da relação custo- efetividade na carreira profissional, baseada não só em evidências científicas, mas também nas necessidades de uma determinada população. Portanto, a experiência de participar do PET, permite a formação completa do acadêmico, pautada também nas Ciências Humanas e Sociais. Dessa forma, ir além dos muros da faculdade proporciona uma visão completa e humana do paciente, que não se restringe mais a apenas uma "parte" doente, por poder ter seu contexto compreendido e integrado na visão de cada petiano (AU).
The art of dealing with the similar goes beyond simply contact a service provider to the recipient of the service , after the mouth is only part of the individual. The design PET - Saúde provides the academic experience of exploring the world beyond the walls of the college, which is simply phenomenal. This is the best way to form the dental professional with a humanist , critical and reflective view . Providing students the opportunity to encounter the reality of payphones and develop the general skills of the dentist , as communication with other professionals , experiencing multiprofessionality and transdisciplinarity , important in health promotion . During visits to municipalities were executed activities of health care with prevention and rehabilitation. Even against a background of lack of resources , lack of certain materials, common clinical presentation not prevented the carrying out of procedures and care . This experience is essential because it helps in decision making and establishment of costeffectiveness in their professional careers, based not only on scientific evidence , but also the needs of a given population. Therefore , the experience of participating in the PET allows the complete formation of the academic , also marked the Humanities and Social Sciences . Therefore, going beyond the walls of the college provides a comprehensive and humane view of the patient , which is no longer restricted to just one sick " part " , because it may have its context understood and integrated into the vision of each petiano (AU).
