Final answer:
An incisor is one of the eight blade-like teeth at the front of the mouth used to slice food. Scissor over comb cutting does not involve teeth.
Step-by-step explanation:
An incisor is one of the eight blade-like teeth at the front of the mouth that are used to slice off pieces of food. They are located in both the upper and lower jaws. In humans, the incisor teeth are typically numbered and referred to as '1-1-1-1,' with each number representing the number of incisors in each quadrant of the mouth.
The statement '38-50 teeth used for scissor over comb cutting' is FALSE. Scissor over comb cutting is a technique used in hairdressing, and it does not involve the use of teeth. Instead, it involves using scissors to cut hair while combing it with a comb.