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.
Occlusion, in a dental context, means simply the contact between teeth. More technically, it is the relationship between the maxillary (upper) and mandibular (lower) teeth when they approach each other, as occurs during chewing or at rest. Malocclusion is the misalignment of teeth and jaws, or more simply, a bad bite. Malocclusion can cause a number of health and dental problems. Static occlusion refers to contact between teeth when the jaw is closed and stationary, while dynamic occlusion refers to occlusal contacts made when the jaw is moving. Dynamic occlusion is also termed as articulation.