Publications by authors named "Pamela O Ornellas"

This study aimed to search for in children's deep carious dentine and characterize their virulence traits. Eight isolates from 15 carious molars identified by 16S rDNA species-specific PCR as were included. These eight isolates were subject to identification by MALDI-TOF and characterized regarding: (i) bacterial aggregation and biofilm formation on polystyrene and glass, with/without saliva, as single or dual-species (associated to ); (ii) environmental pH measurement before and after 24 h incubation; (iii) acidogenicity; (iv) gelatinase production; (v) macrophage adherence; and (vi) toxicity towards .

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This study aimed to evaluate the use of antimicrobial photodynamic therapy (aPDT) as an adjunct for minimally invasive treatment (partial removal of carious tissue-PRCT) of deciduous carious tissue evaluating its efficacy in reducing microorganisms. For that, a clinical study was design including children with deciduous molars with active deep caries lesions (DCL). PRCT was performed and remaining dentin was treated with 100 μg mL methylene blue solution (5 min) and than irradiated with a low power laser emitting red light (InGaAIP-indium gallium aluminum phosphide; λ = 660 nm; 100 mW; 300 J cm ; 90 s; 9 J).

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Antimicrobial photodynamic therapy (aPDT) is increasingly used in dentistry to treat a number of diseases. The procedure involves the activation of a photosensitizer by a visible light source to induce chemical reactions that create cytotoxic reactive oxygen species, cause oxidative stress, and result in inactivation of pathogenic microorganisms. The use of aPDT has been proven to reduce microorganisms present in dentin and therefore may be effective for treatment of deep caries.

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This study aimed to perform a systematic review to assess the effectiveness of antimicrobial photodynamic therapy (aPDT) in the reduction of microorganisms in deep carious lesions. An electronic search was conducted in Pubmed, Web of Science, Scopus, Lilacs, and Cochrane Library, followed by a manual search. The MeSH terms, MeSH synonyms, related terms, and free terms were used in the search.

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