They are used to chew the food.
The maxillary first premolar
A premolar is a tooth situated in front of the molar teeth - in humans, it is between the canines and the molars.
The upper first premolar has Mesial Marginal Developmental Groove in its mesial aspect. It also has long central groove and no supplement groves on its occlusal surface.Also 80% of the upper premolars have 2 roots. However, the upper second premolar has no MMDG and many supplemental groves. Upper second premolar is more rounded and usually has one conical root.
2
Yes
There is no such thing as 'premnolar' and you must have meant 'premolar' meaning 'teeth' (molars) and this question has already been answered as 'What are premolars?'
A bicuspid is a tooth with two cusps - a premolar tooth.
it is a disease where the tooth has a hole and the gum rots
mandibular second premolar
It grind and chewing the food.
what do molar teeth do
Premolar teeth typically begin to erupt between the ages of 10 and 12 years, with the entire process taking several months to complete. The time for a premolar to fully emerge can vary from person to person but generally ranges from a few weeks to several months. Factors such as individual development and dental health can influence this timeline.