Laser Therapy Could Replace Dentists' Root Canal Drills

Now there is a relief for the people with tooth problem. Soon doctors to switch from root canal drill procedures to painless laser treatment. Researchers at Harvard University have found that if the cells on the inner side of the tooth are exposed to weak laser light, it can help trigger the growth of dentin. May 30, 2014

Ancient Birds Lacked in Diversity, Find Researchers

Birds are found in many varieties, some are tiny but speedy like hummingbirds while some are huge but flightless like ostrich. But according to a new study, prehistoric fossil birds were found to lack diversity. May 30, 2014