Citation Information :
Lovekumar N, Nandini VV, Sultana N. Modified Self-centering Facebow: A Novel Prototype. Int J Prosthodont Restor Dent 2020; 10 (4):180-183.
Aim and objective: The purpose of this prototype model was to provide a novel and accessible facebow transfer.
Background: The practical application of this technique helps overcome the drawbacks of conventional facebow in providing accurate parallelism and precise midline orientation.
Technique: A MEMS-based three-axis gyroscope sensor is used for three axis rotational measurement. The electrical output of the gyroscope is via microcontroller that is driven to the OLED screen through I2C serial communication. A precise facial midline was obtained by using adjustable laser module of 650 nm in the current developed system. This detachable assembly was mounted on the Hanau spring bow and was evaluated on two patients.
Conclusion: Incorporation of the Gyro sensor with the adjustable laser light indicator in Hanau spring bow achieved accurate orientation of the occlusal plane and also helps in precise midline positioning, thereby decreasing occlusal errors and increasing the precision of the facebow.
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