This season Stanford University football players are adding a new piece of equipment to their gear. Seattle-based firm X2Impact has developed a line of mouthguards and headbands for contact-sport athletes designed to aid in gathering data about concussions and other brain-related sports injuries.
The mouthpieces, which also function as normal mouthguards, are also outfitted with gyroscopes and accelerometers that gauge the force with which athletes are being hit from inside the head, allowing for greater accuracy in measuring the impact.
Brain-related injuries have drawn much attention in recent years, especially in the context of youth and student sports. Because young athletes are likely to underreport their injuries and often do not show visible signs of impairment from an initial impact, an alarming number of brain injuries are going unnoticed.
In a recent study of high school football players conducted by researchers at Purdue University, researchers found that players in the study received 200-1,800 hits to the head in a single season, with helmet-sensor data indicating that impact forces to the head ranged from 20 Gs to up to 300Gs. To put that particular figure into perspective, a soccer player 'heading' a ball usually experiences a force of about 20 to 50Gs; a boxer being punched in the head experiences approximately 100 Gs.
More disturbing than the hits themselves, however, was the discovery researchers made while comparing concussed and non-concussed athletes in a series of basic memory tests. When testing uninjured players in order to establish a control group, researchers found that several of the non-concussed players also exhibited signs of impaired brain function. According to Sports Illustrated writer David Epstein, who reported on the story in April, the study found that the number of hits a player had taken over the previous week - even if he did not receive a concussion - was the most reliable predictor of brain impairment. "This is particularly scary, because it means that the vast majority of brain damage in football players might be occurring in the absence of any easily recognizable symptoms or of a particularly bell-clanging hit," writes Epstein.
In the absence of symptoms, researchers and those in the sports community are seeking to gather as much information as possible on impact-related injuries as possible while also caring for their athletes. X2Impact is working with Bite Tech, Inc. on a commercial version of the mouthguard, which is expected to be available in 2012. In addition to gathering information, the mouthguards will transmit data about each hit to authorized mobile devices on the sidelines, such as those of athletic trainers, coaches, parents and team physicians. The devices are programmed to alert sideline medical staff both in instances of a single high-impact hit and a series of smaller hits. It is hoped that as researchers gain more information on the nature of the impacts themselves and their effects on athletes, sports medicine will better understand the biomechanics involved in impact-related injuries and better help treat and prevent those injuries in real time, as and before they occur.
With a few exceptions, teeth don’t heal by themselves. Every cartoon with an elderly character will show them taking out their false teeth. For many Americans, teeth simply don’t stand the test of time. They contain one of the few tissues in the body that is finite. Most people have heard of enamel from toothpaste ads, but that tissue is only 1 of the 4 that comprise a tooth. Enamel, dentin, cementum, and pulp are the four major tissues that round out a mouth full of pearly whites. Most of the previous blog entries talk about a specific dental disorder or problem and offer remedies to it. This one will be a bit of primer, a basic introduction to what teeth are, and what can go wrong for each part.
Elephant tusks (Ivory) are solid dentin. Ivory was the preferred material for billiard balls, as dentin has an elastic quality
Veneers are often the only solution to severely worn enamel.
Attrition – Wear away of tooth surface by chewing, one of its primary causes is Bruxism.
v shaped mark. A hard bristle tooth brush is one of the biggest contributing factors to abrasion victims, although a hard brushing with a soft bristled brush can be just as harmful. Tooth abrasion can be repaired by bonding a tooth colored filling to the damaged area. The recommended way to brush your teeth is to place the brush at a 45 degree angle toward the junction of the gum and tooth and move the brush in a gentle circular motion. To make sure you’ve brushed properly try discoloring tablets, bright pink tablets that are chewed before brushing. Any place that hasn’t been brushed properly will be slightly tinged pink.
Tooth erosion is caused by acid. Teeth and acid do not mix. Acid is the bacterial by-product that causes cavities. Food and drink that are highly acidic can cause the enamel and the dentine to break down. The acid dissolves the calcium in the tooth. All soft drinks are acidic, including any carbonated: soda, diet soda, sports drinks, diet sports drinks, and sparkling mineral water. Soft drinks are a major cause of tooth erosion and the degree of erosion directly correlates to the amount and frequency of soft drink consumption. Other acidic foods include: citrus fruits, fruit juices, pickles, vinegar, and yogurt. Stomach acid is very powerful, strong enough to dissolve any food along with whatever tooth and bone fragments that might accidentally be ingested. When stomach contents are regurgitated acid comes into contact with the teeth. Any condition that causes repetitive vomiting will result in tooth erosion. The dentist is often the first one to the notice the problem because the back of the tooth is more susceptible to erosion. When a tooth is sufficiently eroded, the enamel will give way and expose the dentine, which can result in pain and increased sensitivity to: sweet, hot, and cold food or drinks. Erosion is a serious problem. If the nerves or blood vessels have been affected, those teeth will require a root canal and a replacement crown. To prevent tooth erosion, it is important to limit your exposure to acidic food and drink. It is also shown that chewing sugar-free gum can dilute acidity by increasing saliva flow.

Photo of injured football player from MomsTeam.com. Click on the photo above to learn more about high school sports injuries on MomsTeam.com.
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