RESUMO
The aim of the present study was to compare the quality of preparation in curved and straight root canals employing 2 techniques, i.e. the step-back technique and the technique of Goerig, Michelich and Schultz. One hundred and thirty single-rooted human teeth were employed throughout. The walls of the root canals of these teeth were painted. Following instrumentation the roots were sectioned longitudinally. The sections were observed under a stereoscopic microscope SZ40 with a grid fitted in the eyepiece. The efficacy of instrumentation was evaluated using area of paint removed as the end-point. Statistical significance of the data was tested with the chi square test employing the Epi Info 5 software. There was no statistically significant difference between techniques for straight canals. The technique of Goerig, Michelich and Schultz was more effective than the step-back technique in the apical third of curved canals.
Assuntos
Preparo de Canal Radicular/métodos , Distribuição de Qui-Quadrado , Corantes , Cavidade Pulpar/anatomia & histologia , Desenho de Equipamento , Humanos , Pulpotomia , Preparo de Canal Radicular/instrumentação , Resultado do TratamentoRESUMO
The aim of the present study was to compare the quality of preparation in curved and straight root canals employing 2 techniques, i.e. the step-back technique and the technique of Goerig, Michelich and Schultz. One hundred and thirty single-rooted human teeth were employed throughout. The walls of the root canals of these teeth were painted. Following instrumentation the roots were sectioned longitudinally. The sections were observed under a stereoscopic microscope SZ40 with a grid fitted in the eyepiece. The efficacy of instrumentation was evaluated using area of paint removed as the end-point. Statistical significance of the data was tested with the chi square test employing the Epi Info 5 software. There was no statistically significant difference between techniques for straight canals. The technique of Goerig, Michelich and Schultz was more effective than the step-back technique in the apical third of curved canals.
RESUMO
The aim of the present study was to compare the quality of preparation in curved and straight root canals employing 2 techniques, i.e. the step-back technique and the technique of Goerig, Michelich and Schultz. One hundred and thirty single-rooted human teeth were employed throughout. The walls of the root canals of these teeth were painted. Following instrumentation the roots were sectioned longitudinally. The sections were observed under a stereoscopic microscope SZ40 with a grid fitted in the eyepiece. The efficacy of instrumentation was evaluated using area of paint removed as the end-point. Statistical significance of the data was tested with the chi square test employing the Epi Info 5 software. There was no statistically significant difference between techniques for straight canals. The technique of Goerig, Michelich and Schultz was more effective than the step-back technique in the apical third of curved canals.
RESUMO
Se realizó un estudio aplicando en una Cátedra Clínica de la carrera de odontólogo un sistema de regularidad y promoción por acumulación de puntos, resultantes de las calificaciones de los trabajos prácticos y de los exámenes parciales. Se tomó como grupo testigo un curso donde se alcanzaba la regularidad con un número de trabajos prácticos y un número de exámenes parciales aprobados. El procedimiento fue evaluado mediante un seminario docente, un seminario estudiantil y un estudio estadístico de la cantidad de trabajo por unidad de tiempo por cada alumno. Los resultados parecieron indicar que el sistema experimentado podría actuar como un elemento de motivación para un cambio positivo de actitudes en el estudiante. Se hacen necesarios otros estudios que amplíen los grupos experimentales y testigos en un mayor número de años para arribar a conclusiones más seguras (AU)
Assuntos
Estudo Comparativo , Humanos , Educação em Odontologia/normas , Avaliação Educacional/métodosRESUMO
Se realizó un estudio aplicando en una Cátedra Clínica de la carrera de odontólogo un sistema de regularidad y promoción por acumulación de puntos, resultantes de las calificaciones de los trabajos prácticos y de los exámenes parciales. Se tomó como grupo testigo un curso donde se alcanzaba la regularidad con un número de trabajos prácticos y un número de exámenes parciales aprobados. El procedimiento fue evaluado mediante un seminario docente, un seminario estudiantil y un estudio estadístico de la cantidad de trabajo por unidad de tiempo por cada alumno. Los resultados parecieron indicar que el sistema experimentado podría actuar como un elemento de motivación para un cambio positivo de actitudes en el estudiante. Se hacen necesarios otros estudios que amplíen los grupos experimentales y testigos en un mayor número de años para arribar a conclusiones más seguras
