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Human tooth
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Human teeth function to mechanically break down items of food by cutting and crushing them in preparation for swallowing and digesting. As such, they are considered part of the human digestive system.
Image showing incisors and canine teeth, situated in gums above and below
Image showing incisors and canine teeth, situated in gums above and below
3D rendering showing the types of teeth
3D rendering showing the types of teeth
Radiograph of lower right third, second, and first molars in different stages of development
Radiograph of lower right third, second, and first molars in different stages of development
Bottom teeth of a seven-year-old, showing primary teeth (left), a lost primary tooth (middle), and a permanent tooth (right)
Bottom teeth of a seven-year-old, showing primary teeth (left), a lost primary tooth (middle), and a permanent tooth (right)
Wisdom tooth
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The third molar, commonly called wisdom tooth, is the most posterior of the three molars in each quadrant of the human dentition. The age at which wisdom teeth come through is variable, but this gener
Human tooth
…maxillary first premolars (5 and 12), maxillary second premolars (4 and 13), maxillary first molars (3 and 14), maxillary second molars (2 and 15), and maxillary third molars (1 and 16). The mandibular teeth are the mandibular central incisors (24 and 25), mandibular lateral incisors (23 and 26), mandibular canines (22 and…
Wisdom teeth
Wisdom teeth
Bottom left premolars and adult molars, including a healthy and ideally erupted wisdom tooth
Bottom left premolars and adult molars, including a healthy and ideally erupted wisdom tooth
Inflamed excess gum flap (inflamed operculum marked by green arrow) over wisdom tooth
Inflamed excess gum flap (inflamed operculum marked by green arrow) over wisdom tooth
Some problems which may or may not occur with third molars: A Mesio-impacted, partially erupted mandibular third molar, B Dental caries and periodonta
Some problems which may or may not occur with third molars: A Mesio-impacted, partially erupted mandibular third molar, B Dental caries and periodontal defects associated with both the third and second molars, caused by food packing and poor access to oral hygiene methods, C Inflamed operculum covering partially erupted lower third molar, with accumulation of food debris and bacteria underneath, D The upper third molar has over-erupted due to lack of opposing tooth contact, and may start to occlude into the operculum over the lower third molar traumatically. Unopposed teeth are usually sharp because another tooth has not blunted them.