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1.
Pesqui. bras. odontopediatria clín. integr ; 22: e210145, 2022. tab, graf
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-1422284

RESUMO

Abstract Objective: To compare the marginal degradation (susceptibility to marginal adaptation and marginal discoloration) of composite restorations placed in class II and V cavities using conventional and bulk-fill resin composites. Material and Methods: This study was approved by PROSPERO database (#42020201596). PubMed, Scopus, Embase, Web of Science, Lilacs, Cochrane, Open Grey, Clinical Trials, and Rebec databases were searched by three independent investigators using MeSH terms, supplementary concepts, synonyms, and free keywords, based on the PICOS strategy (P, population: restoration in permanent teeth; I, intervention: bulk-fill resin composite; C, comparison: conventional resin composite; O, outcome: marginal discoloration and adaptation; and S, study design: randomized and non-randomized clinical trials). The risk of bias was evaluated according to the Cochrane Collaboration's tool, the meta-analyses by RevMan software, the certainty of evidence by the Grading of Recommendations Assessment, Development, and Evaluation, and the leave-one-out sensitivity test. The prevalence of successful events and the total number of restorations were used to calculate the risk difference at a confidence interval of 95%, according to a fixed-effect model. The heterogeneity was evaluated using the I2 index. Results: 16 from 10,780 studies were selected and included for qualitative and quantitative analysis. Two studies were considered as high risk of bias, one showing some concerns, and 13 as low risk of bias. Four meta-analyses evaluated the marginal adaptation and marginal discoloration in class II and V cavities, with a nonsignificant heterogeneity (I2 = 0%, p>0.05). The certainty of evidence was considered high, except for two subgroups of each outcome. Conclusion: There is evidence that composite restorations using conventional and bulk-fill resin composites present similar clinical performance related to marginal degradation (AU).


Assuntos
Metanálise como Assunto , Sensibilidade e Especificidade , Resinas Compostas , Revisões Sistemáticas como Assunto , Adaptação Marginal Dentária
2.
Clin Oral Investig ; 22(9): 3071-3077, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29484546

RESUMO

OBJECTIVE: To evaluate retention of intraoral fluoride in biofilm and saliva, an experimental dentifrice containing hydrocolloid (tara gum) was used as a controlled-release system for fluoride (F). MATERIALS AND METHODS: In a triple-blind randomized crossover trial with washout, 18 individuals used the following different dentifrices for a week: 100-TGF (sodium fluoride NaF associated with tara gum, 1100 mg/L), 50-TGF (50% NaF associated with tara gum + 50% free NaF, 1100 mg/L), PC (free NaF, 1100 mg/L), TG (with tara gum and without F), and placebo (without F or tara gum). On the seventh day of dentifrice use, biofilm was collected at 1 and 12 h, and saliva was collected up to 60 min and 12 h after the last toothbrushing. F concentrations were determined by physico-chemical analysis of fluoride using the hexamethyldisiloxane-facilitated diffusion technique. Data were subjected to two-way analysis of variance (repeated measures) and Spearman's correlation coefficient (p < 0.05) testing. RESULTS: No significant difference was observed with the same dentifrice regarding F retention in biofilm at 1 and 12 h after toothbrushing for the 100-TGF, placebo, and TG groups (p > 0.05). The highest area under the curve values in saliva were found for the 50-TGF, 100-TGF, and PC groups. CONCLUSION: The dentifrice containing hydrocolloid as a controlled-release system for F promoted F retention in the oral cavity, even at 12 h after brushing. CLINICAL RELEVANCE: Hydrocolloid added to dentifrices as a controlled-release system for F might contribute to a higher anti-caries effect. TRIAL REGISTRATION: NCT02809014.


Assuntos
Biofilmes/efeitos dos fármacos , Cariostáticos/uso terapêutico , Preparações de Ação Retardada/uso terapêutico , Dentifrícios/química , Dentifrícios/uso terapêutico , Gomas Vegetais/uso terapêutico , Fluoreto de Sódio/uso terapêutico , Adulto , Estudos Cross-Over , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Saliva/química , Escovação Dentária , Resultado do Tratamento
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