Question

Write a note on the peg and socket joint.

Answer 1

Hint The peg and the socket joint are also known as gomphoses. This joint is found in relation to the jaws and teeth. These joints have very limited to no movement at all. In this type of joint, the bone doesn’t join with the other bones.

Complete answer:
The peg and the socket joint are found in the jaws and the teeth. This type of joint is also known as gomphosis. In this type of joint, the tooth anchors itself to the jaws either on the upper jaw or the lower jaw. The teeth have the presence of the pegs which are embedded in the sockets present on the jaws. The movement in such a joint is very limited or is absent. The teeth are fixed into positions by the braces which take a long period of time in order to set teeth in proper positions. The gomphosis consists of the fibrous tissue which helps in the attachment of the peg to its socket. The baby teeth which are shed at the initial age of the children develop a new set of teeth that have the presence of gomphosis. This gomphosis helps in the anchoring of the teeth into the jaw socket. Scurvy is a disease that leads to the dissolvement of this connective tissue and leads to shedding of the teeth. The teeth fall out due to unstable joints present in the jaws. Scurvy is usually caused due to vitamin C deficiency in the body.

Note: The joints present in between the jaws and teeth are known as the peg and socket joint. This type of joint doesn’t join bone to bone. This type of joint allows no movement at all that is why our teeth remain fixed onto the jaws.