Another reason to not smoke, drink: These habits may ruin your dental fillings

US researchers have found that fillings failed more often in patients who drank alcohol within two years of the dental procedure, while the overall filling failure rate was higher in men who smoked.

If you drink or smoke you are not only damaging your teeth but also your dental fillings. Researchers have warned that smoking and drinking may lead to increased incidences of failure in dental fillings.

The findings, led by researchers from the University of Pittsburgh, showed that within two years of the dental procedure, fillings failed more often in patients who drank alcohol, while the overall filling failure rate was higher in men who smoked.

Furthermore, people with a difference in the gene for matrix metalloproteinase (MMP2) – an enzyme found in teeth – were at increased risk of filling failure. This could be because MMP2 might be able to degrade the bond between the filling and the tooth surface, potentially leading to failure, the researchers said.

The results, published in the journal Frontiers in Medicine, suggest that genetic analysis might help dentists to personalise treatments for their patients, which could lead to improved outcomes.

For the study, the team from America and Brazil analysed dental records of 807 patients. Fillings can fail for a variety of reasons, including re-emergence of the initial tooth decay or the filling becoming detached.

The researchers also examined if newer composite resin fillings are as durable as traditional amalgam fillings, which have been in use for more than 150 years but which contain mercury, a toxic metal. The researchers found that overall, there were no major differences between patients receiving amalgam or composite fillings in terms of filling failure rates.

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