Structure of teeth is similar in all the vertebrates. A typical mammalian tooth is differentiated into 3 parts- crown, neck and root. Crown is the visible part of the tooth projecting out from the gum and out of the jaw bone. Root is the basal part, embedded in a socket or alveolus of the jaw bone. The junction of crown [...]
The following points highlight the three main types of teeth found in mammals. The types are: 1. Incisors 2. Canines 3. Cheek Teeth (Premolars and Molars). Type # 1. Incisors: These are the front teeth borne by the premaxillae in upper jaw and tips of dentaris in lower jaw They are single-rooted, monocuspid and long, curved and sharp-edged. They are [...]
In mammals, teeth develop in the gum or the soft tissue, covering the borders of premaxillae, maxillae and denteries (Fig. 33.7). As in all vertebrates, development of a tooth is similar to that of a placoid scale. Enamel of tooth is derived from epidermis, while the rest of tooth front dermis or mesenchyme. In the beginning of development of a [...]