Use the Sentio stimulator probe as a feeler gauge.
Stimulate at ≥6mA while palpating the walls to confirm you are in bone.
While stimulating, if a ‘STOP’ is triggered at >6mA, hold probe in that position and lower the stimulation current to determine the lowest current that gives a ‘STOP’ response. If a ‘STOP’ is triggered at <6mA, this indicates a nerve is in close proximity. Consider repositioning the hole AWAY from the point at which the ‘STOP’ is elicited.