first premolar

However, all living primates have lost at least the first premolar.

First premolars are very small and slightly exceeds the incisors in the crown area.

The three premolars are numbered 2, 3, and 4, as the first premolar is presumed to have been lost.

Maxillary first premolars and mandibular molars usually have two roots.

The first premolar is very reduced in size compare to the other premolar.

The lateral incisors and first premolars are like canines.

The premolars increase in size from the first premolar to the third premolar.

In the bottom premolars, the first premolar has one cusp although it can be bicuspid.

The earlier the first premolars are removed, the greater the distal eruption of the permanent canines.

Most important would be our canines, which are situated between the lateral and the first premolar on each side of each jaw.

There is always one large buccal cusp, especially so in the mandibular first premolar.

Canines and most premolars, except for maxillary first premolars, usually have one root.

This modification is frequently necessary in the mandibular arch where the canines often erupt before the first premolars.

The most likely causative tooth is the maxillary canine or maxillary first premolar.

Mandibular first premolars have two cusps.

The right permanent maxillary first premolar is known as "5", and the left one is known as "12".

At the age of ten to eleven the maxillary canine falls out and makes the first premolars loose on surface for it to fall out.

The upper premolars have one to two cusps, with the first premolar having only one cusp, a paracone.

They are vestigial first premolars and the first cheek tooth is referred to as the second premolar even when wolf teeth are not present.

There are two cusps on maxillary second premolars, but both of them are less sharp than those of the maxillary first premolars.

Since the lingual cusp is small and nonfunctional, which means it is not active in chewing, the mandibular first premolar resembles a small canine.

Their mesial aspects resemble the adjacent lateral incisors, while their distal aspects anticipate the first premolars.

There are two cusps on maxillary first premolars, and the buccal cusp is sharp enough to resemble the prehensile teeth found in carnivorous animals.

Therefore, whereas the mandibular first premolar resembles a small canine, the mandibular second premolar is more like the first molar.

In some cases a modified technique is followed in which the first premolars are enucleated at the time of extraction of the deciduous first molar.