Premolar - Wikipedia
The four first premolars are the most commonly removed teeth, in 48.8% of cases, when teeth are removed for orthodontic treatment (which is in 45.8% of orthodontic patients). The removal of only the maxillary first premolars is the second likeliest option, in 14.5% of cases. [10]
Premolar teeth: Anatomy and function - Kenhub
2024年3月18日 · In total there are eight premolars: four maxillary and four mandibular (two in each quadrant). Typically, the first premolars erupt between 10-11 years of age, followed by the second premolars between 11-12 years of age. Similar to molar teeth, premolars function to grind food via the cusps, pits and fissures on their surface.
The Permanent Maxillary and Mandibular Premolar Teeth
2018年8月1日 · The maxillary first premolar is the fourth permanent tooth from the median line in the maxillary arch, located laterally from both the maxillary canines of the mouth but mesial from both maxillary second premolars.
Premolars (overview) | Premolars | Dental Anatomy
The premolar teeth (Latin: dentes premolares), also known as premolars and bicuspids, lie between the canines and first molar teeth. The oral cavity houses four maxillary premolars ( 4 , 5 , 12 , 13 ) in the upper jaw and four mandibular premolars ( 20 , 21 , 28 , 29 ) in the lower jaw .
Maxillary First Premolar: Dental Morphology Made Easy
2021年8月31日 · The maxillary first premolar is the first posterior tooth in the maxillary dental arch. There are four premolars in the maxillary dental arch two in each quadrant. The term premolar is used for these teeth because these teeth are anterior to the permanent molars.
First Premolar - an overview | ScienceDirect Topics
Seen from the inside, the first premolar is concave and spoon-shaped. The second premolar has only one cusp, and the crown is not as high as that of the first premolar. Like in the upper premolars, these teeth are closely appressed to each other at the base of their crowns, both in the front and back, thus creating a sharp ridge.
Dental anatomy - Wikipedia
The maxillary first premolar is the tooth located laterally from both the maxillary canines of the mouth but mesially from both maxillary second premolars. The function of this premolar is similar to that of canines in regard to tearing being the principal action during chewing.
Maxillary first premolar - Wikipedia
The maxillary first premolar is one of two teeth located in the upper jaw, laterally (away from the midline of the face) from both the maxillary canines of the mouth but mesial (toward the midline of the face) from both maxillary second premolars.
Maxillary First Premolar Tooth | Complete Anatomy - Elsevier
The maxillary first premolar tooth is one of the two premolar teeth that are found in a quadrant of the maxillary dental arcade. It includes the following bony features: - parts: crown, root, and cervical line; - surfaces: buccal, lingual, mesial, distal, and occlusal surfaces; - landmarks: buccal and lingual cusps, marginal ridges, and central ...
Premolars - My Dental Key
Closer to the halfway point of the root – the maxillary 1st premolar is unique in that the root bifurcation is closer to the halfway point of the root// A. Closer to the crown of the tooth – while all other teeth have their bifurcation closer to crown of the tooth, the maxillary 1st premolar is unique in that the root bifurcation is closer ...