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The most acknowledged theory for supernumerary teeth is hyperactivity of dental lamina. [6] On completion of the dentition, the dental lamina is usually destroyed and reabsorbed, but when remnants fail to resorb, it can continue to proliferate abnormally. This abnormal proliferation can form the extra tooth bud leading to supernumerary teeth ...
The vestibular lamina forms shortly after the dental lamina and is positioned right in front of it. The vestibule is formed by the proliferation of the vestibular lamina into the ectomesenchyme. [1] The vestibular lamina is usually contrasted with the dental lamina, which develops concurrently and is involved with developing teeth.
It was theorized that positive selection for shovel-shaped incisors over the spatulate incisors is more commonly found within cultures that used their teeth as tools due to a greater structural strength in increased shovel-shaped incisors. [2] In some instances, incisors can present a more pronounced version of this called double shovel-shaped.
The Kiss of the Enchantress (Isobel Lilian Gloag, c. 1890), inspired by Keats's "Lamia", depicts Lamia as half-serpent, half-woman. Lamia (/ ˈ l eɪ m i ə /; Ancient Greek: Λάμια, romanized: Lámia), in ancient Greek mythology, was a child-eating monster and, in later tradition, was regarded as a type of night-haunting spirit or "daimon".
Trimorphodon is a genus of mildly venomous, rear-fanged, colubrid snakes.They are commonly known as lyre snakes, named after the distinctive V-shaped pattern on their head that is said to resemble the shape of a lyre.
Venomoid surgery is a surgical procedure performed on venomous snakes to prevent them from producing venom. The procedure has been used for snakes kept as pets or used in public demonstrations in order to remove the risk of injury or death when handled, but is considered illegal and unethical. [1]
An intact lamina dura is seen as a sign of healthy periodontium. Lamina dura, along with the periodontal ligament, plays an important role in bone remodeling and thus in orthodontic tooth movement. Under the lamina dura is the less bright cancellous bone. Trabeculae are the tiny spicules of bone crisscrossing the cancellous bone that make it ...
Teeth can be used to create a DNA profile in order to identify unknown deceased individuals. Dentin and enamel provide a resistant and protective surface that houses the dental pulp which is located under the enamel and dentin layers in the center of the tooth, which contains the nerves and blood supply as well. [ 82 ]