RESUMOEste estudo pretende realizar uma revisão de literatura a respeito da utilização da técnica radiográfica panorâmica em odontopediatria, abordando suas indicações, vantagens e limitações. Foi realizada uma revisão de literatura abordando a utilização da radiografia panorâmica dentro da clínica infantil. Por ser uma técnica extrabucal é melhor aceita pela criança e sua utilização deve estar associada à necessidade de se obter um número maior de informações da região maxilo-mandibular, para auxílio ao diagnóstico e avaliações do crescimento e do desenvolvimento dentário, falhas na erupção, condições patológicas extensas, dentre outras. Além de requerer um tempo mais curto para sua obtenção, é de baixo custo para o paciente e utiliza menor dose de radiação quando comparada ao levantamento radiográfico completo. Entretanto, deve ser complementada quando houver necessidade de maior detalhe e nitidez. PALAVRAS-CHAVES:Radiografia panorâmica. Diagnóstico. Odontopediatria.

Abstract:The essential oil of Melaleuca alternifolia is an herbal antifungal action and preventive scale pharmaceutical or cosmetic. The aim of this study was to evaluate the efficacy of Melaleuca alternifolia (tea tree oil-TTO) and its component (Terpinen-4-ol) on Candida albicans and Candida tropicalis in planktonic and biofilm form of dual species. MIC (Minimum Inhibitory Concentration) and MFC (Minimum Fungicidal Concentration) were determined of single species. Biofilms were quantified in CFU (colony forming unit per mL) and XTT {2,3-bis (2-methoxy-4-nitro-5-sulfophenyl)-5-[(phenylamino) carbonyl]-2H-tetrazolium hydroxide} cell viability assay in single and multiple species. MIC was TTO (0.25%) and Terpinen-4-ol (0.11%) for both species. The MFC for Candida albicans showed TTO (0.25%) and Terpinen-4-ol (0.11%) were capable of inhibiting the growth and for Candida tropicalis was 0.50% and 0.24%, respectively. The results on biofilm for Candida albicans in single species and multiple species showed TTO (0.5%) and Terpinen-4-ol (0.24%) were effective. For Candida tropicalis in single species, treatments with TTO (0.5%) and Terpinen-4-ol (0.47%) were effective. For multiple species, the treatments with TTO (0.5%) and Terpinen-4-ol (0.24%) were also effective. In the XTT test, for Candida albicans in single species: TTO (0.25%) and Terpinen-4-ol (0.24%). For Candida tropicalis, the results were TTO (0.5%) and Terpinen-4-ol (0.11%), while for multiple species were TTO (0.25%) and Terpinen-4-ol (0.11%). Based on these factors, Candida spp. are susceptible to the antimicrobial agents TTO and Terpinen-4-ol, suggesting that these compounds might be beneficial as therapeutic.

Partial caries removal performed by the stepwise treatment has a high rate of clinical success and promotes a reduction of microorganisms in carious dentin. However, the adaptive behavior of these cloistered bacteria is not entirely clear. Aim: This study aimed to evaluate the carious dentin and quantify the microorganisms Streptococcus mutans and Lactobacillus acidophilus at the first intervention and after 90 days, assessing the acidogenicity and aciduricity of these bacteria isolated from the lesions. Methods: Twenty patients presenting deep caries lesion in primary molars eligible to receive the stepwise treatment were selected, dentin samples were collected in two different moments: in the first intervention, just after partial caries removal; and in the second intervention, during the reopening of the cavity (90 days after the temporary sealing of the lesion). The samples were processed for microbiological analyses via culture, identification and quantification. The bacteria isolates were subjected to phenotypic tests of acidogenicity and aciduricity. Dentin consistency and color was also recorded by a calibrated examiner. Data were statistically analyzed. Results: There was a reduction in the number of viable microorganisms while dentin rehardening and browning was noted (p<.05), but no change occurred in the acidogenicity and aciduricity properties of Streptococcus mutans and Lactobacillus acidophilus over time. Conclusion: Thus, the stepwise treatment promoted clinical changes as darkening and hardening of carious dentine and promoted a reduction in the number of viable microorganisms, but no influence was found on the phenotypic characteristics of acidogenicity and aciduricity of the species analyzed after 90 days.

No abstract