IADR Abstract Archives
Sensor Attached Gingival Cord Packer - A Novelle Instrument
Objectives: To fabricate a cord packing instrument attached with pressure sensors facilitating assessment and channelising of the optimum pressure required for gingival retraction cord packing without eliciting ill effects on the gingiva
Methods: A retraction cord packer with a smooth tip was taken, the steel tubing or the handle of the instrument was opened and a wire was was drawn upto the shank. The wire was drawn from a pressure sensor placed externally over the instrument. The sensor in turn is connected to an Arduino UNO Controller Board which converts analogue values to digital values and projects them in the LCD display. It harbours four pins namely, analogue, digital, VCC and ground. This Arduino UNO controller requires 5V Direct Current (DC) for its functioning. With a commercially available power supply of an Alternating Current (AC) of 230V, it is stepped down to 12V by a step down transformer and the AC is rectified into DC by a rectifier. This rectified 12V current is then sent through a voltage regulator which will convert the 12V DC to 5V DC and this is given to the VCC for power supply.
The device fabricated as mentioned above, with a power supply displays the amount of pressure exerted in Newton per square millimetre of soft tissue
Results: The indigenously developed instrument's sensor successfully displayed the pressure being applied thus keeping the operator's finger pressure application in control so as not to harm the supporting tissues
Conclusions: With a never ending demand for crown and bridge placement, this instrument seems to be promising in cord packing within a safe threshold thus preventing deleterious effects on the gingiva and the periodontium.
Methods: A retraction cord packer with a smooth tip was taken, the steel tubing or the handle of the instrument was opened and a wire was was drawn upto the shank. The wire was drawn from a pressure sensor placed externally over the instrument. The sensor in turn is connected to an Arduino UNO Controller Board which converts analogue values to digital values and projects them in the LCD display. It harbours four pins namely, analogue, digital, VCC and ground. This Arduino UNO controller requires 5V Direct Current (DC) for its functioning. With a commercially available power supply of an Alternating Current (AC) of 230V, it is stepped down to 12V by a step down transformer and the AC is rectified into DC by a rectifier. This rectified 12V current is then sent through a voltage regulator which will convert the 12V DC to 5V DC and this is given to the VCC for power supply.
The device fabricated as mentioned above, with a power supply displays the amount of pressure exerted in Newton per square millimetre of soft tissue
Results: The indigenously developed instrument's sensor successfully displayed the pressure being applied thus keeping the operator's finger pressure application in control so as not to harm the supporting tissues
Conclusions: With a never ending demand for crown and bridge placement, this instrument seems to be promising in cord packing within a safe threshold thus preventing deleterious effects on the gingiva and the periodontium.