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2. Permanent teeth - Wikipedia

   en.wikipedia.org/wiki/Permanent_teeth

   Up to thirteen years of age, 28 of the 32 permanent teeth will appear. The full permanent dentition is completed much later during the permanent dentition period. [ 3 ] The four last permanent teeth, the third molars, usually appear between the ages of 17 and 21 years; they are considered wisdom teeth .

3. Human tooth development - Wikipedia

   en.wikipedia.org/wiki/Human_tooth_development

   Typically, humans have 20 primary (baby) teeth and 32 permanent teeth. [43] Tooth eruption has three stages. The first, known as deciduous dentition stage, occurs when only primary teeth are visible. Once the first permanent tooth erupts into the mouth, the teeth are in the mixed (or transitional) dentition.

4. Tooth eruption - Wikipedia

   en.wikipedia.org/wiki/Tooth_eruption

   Typically, humans have 20 primary teeth and 32 permanent teeth. [9] The dentition goes through three stages. [10] The first, known as primary dentition stage, occurs when only primary teeth are visible. Once the first permanent tooth erupts into the mouth, the teeth that are visible are in the mixed (or transitional) dentition stage.

5. Human tooth - Wikipedia

   en.wikipedia.org/wiki/Human_tooth

   Primary teeth erupt into the mouth from around six months until two years of age. These teeth are the only ones in the mouth until a person is about six years old. At that time, the first permanent tooth erupts. This stage, during which a person has a combination of primary and permanent teeth, is known as the mixed stage.

6. Maxillary central incisor - Wikipedia

   en.wikipedia.org/wiki/Maxillary_central_incisor

   There are some minor differences between the deciduous maxillary central incisor and that of the permanent maxillary central incisor. The deciduous tooth appears in the mouth at 8–12 months of age and shed at 6–7 years, and is replaced by the permanent tooth around 7–8 years of age. The permanent tooth is larger and is longer than it is ...

7. Tooth - Wikipedia

   en.wikipedia.org/wiki/Tooth

   By age five, all permanent teeth have usually erupted. The horse is then said to have a "full" mouth. After the age of five, age can only be conjectured by studying the wear patterns on the incisors, shape, the angle at which the incisors meet, and other factors. The wear of teeth may also be affected by diet, natural abnormalities, and ...