It is said that dog is a man’s best friend. The fact might actually be true. The University of Sao Paulo, Brazil conducted an experiment on them to find out whether the dogs could assess the emotional content of human voices.
17 dogs took part in the experiment. Pairs of photos of someone looking happy or sad were shown before them. In addition to the photos, the person’s voice speaking in a cheerful or angry tone were also played.
Research revealed that the dogs spent more time looking at the facial expression that matched the tone of voice.This means that canines are actually capable of matching a person’s facial expressions with his voice.
Researchers say this might be an inherent capability domesticated in canines, which can go as far back as 30,000 years!
Now we can undoubtedly believe people who say they feel a connection with their dogs who react to their emotions on a daily basis.
Indulging in smoking or drinking alcohol may not only damage your teeth but also lead to increased incidences of failure in dental fillings, warned researchers.
The findings, led by researchers from the University of Pittsburgh, showed that within two years of the dental procedure, Dental 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 Dental 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 personalize treatments for their patients, which could lead to improved outcomes.
“A better understanding of individual susceptibility to dental disease and variation in treatment outcomes will allow the dental field to move forward,” said Alexandre Vieira, a researcher from the varsity.
“In the future, genetic information may be used to personalize dental treatments and enhance treatment outcomes,” Vieira added.
For the study, the team from America and Brazil analyzed 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 Dental 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 Dental fillings in terms of filling failure rates. (IANS)