Abnormal tooth color is not the same as the darkening or yellowing of teeth that occurs as people grow older or expose their teeth to staining substances, such as coffee, tea, and cigarette smoke. Graying of a tooth may be a symptom of a previous infection within the tooth that has seriously damaged the pulp, which is the living center of the tooth.
Isla Cozumel, Mexico's largest island is located in the western Caribbean, 12 miles off the coastline of the Yucatan Peninsula, about 45 miles south of Cancun.
Amecameca is situated in the southeastern portion of the State of Mexico, located in the foothills of the Sierra Nevada, within the province of volcanic axis and in the river basin Moctezuma-Panuco. It is adjacent to the boundaries: North the Tlalmanalco municipality; East the city of Puebla, South the