Social Heredity Playmates of the child, students of his age- group, class-fellows â¢He acquires a number of social traits from them The society around â¢The social heredity is considered to be of high significance for the progress of civilization and culture Social Environment at home Social environment of the school is all the more important.
Malocclusion (poor bite) is usually caused by problems in the shape or size of the jaw or teeth. If children have a small jaw, their teeth may grow into a space that is too small. Under these crowded conditions, teeth will push each other out of proper position. Other causes include thumb-sucking, pacifier use, and tooth loss.
The following are some of the causes of TMJ disorders: 1  Malocclusion (misalignment of the teeth or bite problem), when the teeth in the upper and lower jaw are not lined up correctly. 2  Malocclusion can result in uneven pressure to each side of the jaw, that puts the muscles and TMJ under stress.