RESUMO
OBJECTIVE: The aim of this study was to compare the duration of instrumentation and obturation times and quality of root canal filling between rotary and manual instrumentation techniques in primary teeth. STUDY DESIGN: A randomized, controlled clinical trial was performed that included deciduous teeth with pulp necrotic. Forty necrotic teeth were included; 20 were instrumented with a rotary technique (experimental group) and 20 with a manual technique (control group). The time taken for instrumentation and for obturation were recorded in minutes, and the quality of the root canal filling was recorded as optimal, under-filled, or overfilled. RESULTS: The use of the rotary technique diminished the time of instrumentation to 63% and time of obturation to 68%, and it improved the quality of the root canalfilling. CONCLUSION: The use of rotary instruments in the pulpectomy of primary molars represents a promising technique; the time is significantly reduced.
Assuntos
Equipamentos Odontológicos , Necrose da Polpa Dentária/terapia , Pulpectomia/instrumentação , Preparo de Canal Radicular/instrumentação , Distribuição de Qui-Quadrado , Criança , Pré-Escolar , Método Duplo-Cego , Feminino , Humanos , Masculino , Pulpectomia/normas , Obturação do Canal Radicular/métodos , Estatísticas não Paramétricas , Fatores de Tempo , Dente DecíduoRESUMO
Los métodos mecánicos de la preparación del conducto radicular utilizando instrumentos de Ni-Ti se puede utilizar en dientes temporales. El objetivo del informe del caso es presentar los hallazgos radiológicos de un molar primario tratado con pulpectomía y el uso de instrumentación rotatoria para la preparación biomecánica en molar temporal de una niña de 4 años de edad.
Mechanical methods of root canal preparation using Ni-Ti files can be used in primary teeth. The aim of this case report is to present radiographic findings of a primary molar treated by pulpectomy therapy, using rotary instrumentation for biomechanical preparation in a 4-yearold girl.