ABSTRACT
Esta pesquisa teve o objetivo de identificar se há falta de difusão do conhecimento e possíveis vieses cognitivos que estejam sendo limitadores para que o que se conhece em ciência sobre a Remoção Seletiva do Tecido Cariado (RSTC) não seja transmitido para a prática clínica. Ela foi composta por duas séries de perguntas de elaboração própria, online (via 'Formulários Google'). A série de perguntas 1 foi aplicada a cirurgiões-dentistas e estudantes do último ano de Odontologia, e buscou investigar seus conhecimentos sobre a técnica de Remoção Seletiva, se eram a favor e estavam usando na prática clínica, e possíveis fatores relacionados à tomada de decisão sobre qual técnica utilizar. A série de perguntas 2 foi aplicada a coordenadores e/ou colaboradores de disciplinas relacionadas a cariologia, dentística ou materiais dentários; esta buscou investigar se os respondentes eram a favor e estavam usando a técnica, pesquisou possíveis fatores relacionados à tomada de decisão sobre qual técnica utilizar, e se estavam transmitindo conhecimentos sobre a mesma durante suas aulas. Para o recrutamento de voluntários, foram usadas estratégias de comunicação através de Entidades de Classe de Odontologia, de Secretarias Municipais de Saúde, de Universidades públicas e privadas, de redes sociais e por meio de comunicação presencial. Ao final da coleta dos dados, estes foram descritos por porcentagem de frequência e analisados por testes de associação (5%). De um total de 568 dentistas, 319 afirmaram sentirem-se inseguros quanto a seus conhecimentos sobre a RSTC. Dos 568, 406 erraram sobre quanto deve-se remover de tecido cariado em paredes pulpares de cavidades muito profundas, enquanto 410 acertaram o principal critério clínico para decidir até onde remover. Dos 568, 89 afirmaram que não usavam a RSTC. Destes 89, 54 não estudaram a técnica, 59 eram de especialidades não relacionadas à cariologia e apenas 7 eram especialistas em áreas relacionadas. 07 dos 53 professores afirmaram desacreditar na RSTC como melhor técnica. Concluiuse que há falta de difusão do conhecimento a respeito da RSTC e que há vieses cognitivos relacionados, os quais diminuem a adesão de cirurgiões-dentistas à RSTC (AU)
This research aimed to identify if there is diffusion failure of the knowledge and possible cognitive biases that are been limiters to what is known in science about Selective Removal of Carious Tissue (SRCT) is not being transmitted to clinical practice. It was based on two question series elaborated by the authors, online (by 'Google Forms'). Question series 1 was applied to dentists and Dentistry students of last year of graduation, and aimed to search their knowledges about SRCT, if They were in favor of and were using the technique on their clinical practice, and possible factors related to their decision-making of what technique to use. Question series 2 was Applied to coordinators and/or collaborators of disciplines related to cariology, dentistry or dental materials; it tried to investigate if the respondents were in favor of and if They were using the technique, searched possible factors related to decisionmaking of what technique to use, and if They were transmitting the knowledges about SRCT in their classes. To voluntary recruitment, communication strategies were used through Entities of Dentistry Class, Municipal Health Departments, public and private Universities, social media and face communication. At the end of data collection, date was described by frequency percentage and analyzed by association tests (5%). From 568 dentists, 319 said They feel insecure about their understanding regarding SRCT. Of these 568, 406 were wrong about how many the carious tissue must be removed from Pulp walls of very deep cavities, while 410 were right about the main clinical parameter to decide how far to remove the carious tissue. Of the same 568, 89 said They did not use the SRCT. From these 89, 54 did not study the technique, 59 were specialized in areas not related to cariology and only 7 dentists were specialized in cariology areas. 07 of 53 professors said they not believe SRCT as the best approach. It was concluded there is failure on SRCT knowledge and there are cognitive biases related, which decrease the dentist adherence to SRCT (AU)
Subject(s)
Humans , Dental Caries , Dentists , Education, Dental , Evidence-Based Dentistry , Clinical Decision-Making , Data Collection , Surveys and QuestionnairesABSTRACT
The aim of this study was to evaluate the influence of surface sealant and erosive challenge on the color change of composite resin after artificial staining with coffee. Forty-eight composite specimens (8 × 1 mm) were prepared and divided into 4 groups (n = 12) based on the timing of sealant application (immediate vs delayed) and exposure to acid (erosive challenge vs no challenge). The groups were subjected to the procedures in the following order: 1, sealant application, erosive challenge, color measurement, coffee immersion, and color measurement; 2, sealant application, color measurement, coffee immersion, and color measurement; 3, erosive challenge, color measurement, sealant application, coffee immersion, and color measurement; and 4, color measurement, sealant application, coffee immersion, and color measurement. In groups 1 and 2, surface sealant was applied immediately after preparation of the specimens. In groups 3 and 4, sealant was applied after the first color measurement. Color was measured with a spectrophotometer using the CIE L*a*b* system. The erosive challenge (groups 1 and 3) was carried out in 0.01M hydrochloric acid, 150 mL/cycle, at room temperature (2-minute immersions 4 times a day for 5 days). After all specimens were immersed in coffee for 14 days, new color measurements were performed. For total color change (∆E*), groups 1 (21.01) and 2 (23.10) presented lower values than groups 3 (27.76) and 4 (26.57). For luminosity (∆L*), the opposite occurred (groups: 1, -16.84; 2, -17.72; 3, -22.62; and 4, -21.22). For ∆a* and ∆b*, the only statistically significant difference was the group 1 ∆b* value, which was the lowest among all groups. The opacity remained stable in all groups. The results suggest that resin luminosity decreases and color variation increases when surface sealant is applied after erosive cycling and storage.
Subject(s)
Composite Resins , Dental Materials , Coffee , Color , Materials Testing , Staining and Labeling , Surface PropertiesABSTRACT
The restorative procedure in posterior teeth involves clinical steps related to professional skill, especially when using the incremental technique, which may fail in the long term. A recent alternative is bulk-fill resins, which can reduce polymerization shrinkage, decreasing clinical problems such as marginal leakage, secondary caries, and fracture. This scientific study aims to report a clinical case using bulk-fill resin with an occlusal matrix. As determined in the treatment plan, an acrylic resin matrix was produced to establish an improved oral and aesthetic rehabilitation of the right mandibular first molar, which presented a carious lesion with dentin involvement. The occlusal matrix is a simple technique that maintains the original dental anatomy, showing satisfactory results regarding function and aesthetic rehabilitation.
ABSTRACT
BACKGROUND: Teriparatide is a synthetic drug similar than PTH (parathyroid hormone), which is currently used as long-term treatment option for patients with bone chronic diseases, as osteoporosis; and this drug can interfere in a positive way in orthodontic movement. Objectives: The medical literature was assessed in the present systematic review in order to determine the level of scientific evidence supporting the influence of teriparatide in induced tooth movement. MATERIAL AND METHODS: The PRISMA Checklist was followed in this systematic review. Four electronic databases (PubMed; Scopus; ScienceDirect; OpenGrey) were searched without implementing restrictions of year, status, and language of publications. The inclusion criteria consisted of selecting only experimental studies comparing the influence of teriparatide in tooth movement of male Wistar rats. The exclusion criteria consisted of experiments with female rats or other experimental animals, and animals with pathologic conditions. The eligible studies were evaluated based on methodological quality. Two trained examiners performed all the research steps. RESULTS: The initial sample comprised 700 studies, which was reduced to 664 after the exclusion of duplicates (n=36). Three articles were selected for the final qualitative analysis. The local administration of parathyroid hormone (PTH) 1-34 or PTH 1-84 revealed major effectiveness when compared with control groups and systematic administration. Additionally, the dilution of PTH 1-34 within methyl cellulose (MC) gel increased the time range for drug release, enabling to reduce the drug concentration without decreasing the effectiveness of tooth movement. CONCLUSIONS: Teriparatide demonstrated potential acceleration of tooth movement in Wistar rats depending on the drug concentration; drug administration; and time for drug release. Key words:Teriparatide, tooth movement, parathyroid hormone, orthodontics.
