All about becoming a Dentist!
Permanent teeth which consist of 32 teeth completely erupt by the age of 18-25, the first in the sequence to erupt being the 1st Molar(6-7 yrs) and the last to erupt is the 3rd Molar(18-21 yrs). The anterior teeth or the incisors mainly the mandibular erupt lingually to that of the deciduous, and the posteriors [...]
Abrasion of teeth refers to the loss of the protective layer of the tooth structure the enamel due to external mechanical forces. Due to this the gingival margin recesses and the dentin is exposed so there are more chances of tooth infection. Abrasion is caused due to bruxism, eating hard substances, brushing teeth for a [...]
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