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.
The passengers, from Royal Caribbean's Liberty of the Seas, were in Cozumel, Mexico and died while in a sand buggy accident. Royal Caribbean did not identify the two victims, but did say they were a 43-year-old man and a 31-year-old woman. News media report the two as Jim Melillo and his girlfriend Susan Borges.wimming, snorkeling and diving are very popular in Cozumel and there are a lot of beaches to choose from. For swimming, you will want to go to a beach on the island's west side, as the water on the east side of the island is far too rough.