The general rule is six months after eruption of the first tooth. Taking your child to the dentist at a young age is the best way to prevent problems such as tooth decay, and can help parents learn how to clean their child's teeth and identify his or her fluoride needs.
The retching phase is characterized by a series of violent spasmodic abdomino-thoracic contractions with the glottis closed. During this time, the inspiratory (inhalatory) movements of the chest wall and diaphragm are opposed by the expiratory contractions of the abdominal musculature.
Belching is the act of expelling air from the stomach through the mouth. It usually occurs when the stomach distends, or expands because of too much swallowed air. Belching releases the air to reduce the distention. Other names for belching include burping...