ABSTRACT
Abstract Objective: To evaluate the Antimicrobial Photodynamic Therapy (aPDT) in infected deciduous teeth by quantifying the viable bacteria in root canal treatment. Material and Methods: Radicular canal cultures were collected (n= 10). Four intra-canal samples were collected at four different times in each of the sampled teeth, as follows: Time 1 (T1), baseline: After opening the pulp-chamber; Time 2 (T2): After application of aPDT; Time 3 (T3): After mechanical, chemical manipulation; Time 4 (T4): After a second application of aPDT. The aPDT was performed with a 4J/cm energy low-intensity diode, together with 0.005% methylene blue as a photosensitizer. The clinical specimens were taken to the laboratory for a bacteria count (colony forming units) and the results were statistically analyzed using the Friedman and Wilcoxon tests, with a significance level of α=0.05. Results: Statistical differences were seen between the numbers of bacteria at times T1-T2, T1-T3 and T1-T4 on the cultivated plates. However, no significant statistical differences were observed between the number of bacteria in samples T2-T3, T2-T4 and T3-T4. Conclusion: Antimicrobial photodynamic therapy can be a good co-adjuvant in root canal decontamination of necrotic primary teeth.
Subject(s)
Humans , Male , Female , Child, Preschool , Photochemotherapy/instrumentation , Tooth, Deciduous , Dental Pulp Necrosis/diagnostic imaging , Low-Level Light Therapy/instrumentation , Brazil/epidemiology , Pilot Projects , Statistics, Nonparametric , Tooth, Nonvital/diagnosisABSTRACT
Resumen Se presenta el caso clínico de una paciente femenina de 7 años de edad, la cual sufrió traumatismo dental en el central superior derecho permanente, al impactarse de manera directa en el pavimento al caer de una bicicleta. Se presenta necrosis pulpar como complicación postraumática a un mes de ocurrido el evento. El objetivo de este caso es mostrar que el diagnóstico adecuado y el conocimiento sobre un protocolo para el manejo del paciente con trauma dental son indispensables para el éxito del tratamiento y pronóstico del diente.
Abstract The clinical case of a 7-year-old female patient who suffered dental trauma in the permanent upper right central incisor presented by directly impacting the pavement after falling from a bicycle. Pulpar necrosis is presented as a postraumatic complication one month after the event. The objective of this case is to show that the adequate diagnosis and knowledge about the protocol for the management of the patient with dental trauma is essential for the success of the treatment and prognosis of the tooth.