Answer:
3
Step-by-step explanation:
since the average human ear canal is about 0.7 centimetres wide and is 2.5 cm deep,
and the average (Royal Paper R820 Round Wooden Toothpicks) toothpick is 0.1778 cm wide and 6.35 cm in length
6.35 - 2.5 = 3.85
therefore you can only fit the toothpicks in 2.5 cm with 3.85 cm of said toothpicks sticking out.
concerning this caution, you can proceed with your experiment
by dividing the width of the ear canal by the width of the average toothpick you can find the number of toothpicks physically capable of being shoved in the human ear canal
= 3.93700787402
therefore you can fit exactly 3.93700787402 toothpicks in the human ear canal.
since you can't have a fractional piece of a toothpick to count as a toothpick the number of toothpicks is therefore 3.
for a more precise measurement find the width and depth of your ear and calculate said steps replacing the average ear canal depth and width of a human with your measurements.
realistically the world record is zero since this did not exist before your question therefore putting just one (1) would break the 'record'.
also trying to break said record can cause injury to the delicate ear canal, including a cut, perforation of the eardrum, or a dislocation of the tiny bones in the ear that enable hearing.
hope this helps:)