Remoção de pinos intrarradiculares : técnicas e dispositivos revisão de literatura.

Abstract

Removal of pins/nuclei is still frequent in dental practice, mainly due to the need for endodontic retreatment or replacement of prostheses. There are four methods for removal of intraradicular retainers: wear, ultrasonic vibration, traction devices and association of techniques. Ultrasonic vibration has been shown to be quite efficient in removing cement-cementated pins with zinc phosphate cement and glass ionomer cement, as it avoids perforations and fractures, preserves the dental remnant and can be applied to any tooth. When associated with another technique, it reduces the time of removal of intraradicular retainers. The purpose of this study is to present the techniques and devices available for the removal of intraradicular retainers, presenting characteristics, advantages, disadvantages and opinions of several authors. Removal of pins / nuclei is still common in dental practice, mainly due to the need for endodontic retreatment or prosthesis replacement. The methods for the removal of intraradicular retainers can be: wear, ultrasonic vibration, traction devices and association of techniques. Ultrasonic vibration has been shown to be very efficient in the removal of cement-cementated pins with zinc phosphate cement and glass ionomer cement, as it avoids perforations, fractures, preserves the dental remnant and can be applied to any tooth. The association of two or more techniques, reduces the time of removal of intraradicular retainers. The purpose of this study is to present the techniques and devices available for the removal of intraradicular retainers, presenting characteristics, advantages and disadvantages, and indications of several authors. It is a safe procedure when indicated and executed in a correct way, sensitive to the technique and operator (knowledge and experience), and in some cases may lead to a great demand for time for removal.