Study: White wine can make tooth stains darker

Apr 01, 2009

It has long been known that red wine causes teeth to stain. But white wine? A recent study by NYU dental researchers found that drinking white wine can also increase the potential for teeth to take on dark stains.

The researchers compared two sets of six cow , whose surface closely resembles that of human teeth, and used a spectrophotometer, an instrument that measures color intensities, to evaluate staining levels.

They found that teeth soaked for one hour in before being immersed in had significantly darker stains than teeth immersed for one hour in water before exposure to the tea.

"Dipping teeth in white wine for one hour is similar to the effect of sipping the wine with dinner," said Dr. Mark Wolff, Professor and Chairman of the Department of Cariology & Comprehensive Care at New York University College of Dentistry, who oversaw the study, which was led by Ms. Cristina M. Dobrescu, a third-year student at New York University College of Dentistry. The findings were presented today at the annual meeting of the International Association for Dental Research in Miami.

"The acids in wine create rough spots and grooves that enable chemicals in other beverages that cause staining, such as coffee and tea, to penetrate deeper into the tooth," Dr. Wolff explained.

Still, continues to beat out white wine when it comes to staining teeth. When the researchers repeated the experiment with red wine, the resulting stains were significantly darker than those in the white wine group. "Red wine, unlike white, contains a highly-pigmented substance known as chromogen," explained Dr. Wolff.

But he added that connoisseurs concerned about staining need not cut back on their consumption. "The best way to prevent staining caused by wine, as well as other beverages, is to use a toothpaste containing a whitening agent," advised Dr. Wolff.

Source: New York University (news : web)

Explore further: Patient-centered medical homes reduce costs

add to favorites email to friend print save as pdf

Related Stories

Study: King Tut liked red wine best

Oct 27, 2005

A University of Barcelona research team has discovered Egypt's King Tutankhamun was partial to wine, preferring red over white.

Red wine decreases the risk of lung cancer

Oct 07, 2008

Moderate consumption of red wine may decrease the risk of lung cancer in men, according to a report in the October issue of Cancer Epidemiology, Biomarkers & Prevention¸ a journal of the American Association for Ca ...

Recommended for you

Patient-centered medical homes reduce costs

3 hours ago

The patient-centered medical home (PCMH), introduced in 2007, is a model of health care that emphasizes personal relationships, team delivery of care, coordination across specialties and care settings, quality ...

New mums still excessively sleepy after four months

4 hours ago

(Medical Xpress)—New mums are being urged to be cautious about returning to work too quickly, after a QUT study found one in two were still excessively sleepy four months after giving birth.

It's time to address the health of men around the world

4 hours ago

All over the world, men die younger than women and do worse on a host of health indicators, yet policy makers rarely focus on this "men's health gap" or adopt programs aimed at addressing it, according to an international ...

User comments : 0