Wisdom Teeth

Fruit, yogurt, citric and soft drinks, may seem like harmless snacks and beverages, but improper consumption and overuse may lead to devastating and permanent damage to teeth. It’s known as tooth erosion, the break down of tooth structure caused by the effect of acid on the teeth that leads to decay. According to David Bartlett, BDS, PhD, who will lead a discussion at the Academy of General Dentistry’s 55th annual meeting in San Diego, titled, “Acid Erosion-Why is it Important to My Patients?”, “Early diagnosis and prevention of the effects of tooth erosion are fundamental to keeping teeth healthy for life.” “Sipping or holding acidic drinks in the mouth before swallowing increases the risk of erosion on dental enamel,” says Dr. Bartlett. Dental enamel is the thin, outer layer of hard tissue that helps maintain the tooth’s structure and shape … Read more

Nearly one in five Ontario Grade 8 students shows evidence of damage to his or her front teeth, says a new University of Toronto study. This the first study of dental injury done in Ontario, says David Locker, a professor with the U of T Faculty of Dentistry. Similar studies have been done in other countries because tooth trauma is considered one of the most severe conditions children can experience. “Once you break an anterior tooth, you carry that with you for life,” says Locker. “Although it can be treated, there’s a likelihood you’ll need to repeat that treatment every 10 years. The cost of initial treatment can be quite high, depending on the injury, and the lifetime cost is estimated to be as high as $250,000 for four teeth.” Locker and his research team examined a random sample of … Read more

Exposing teeth to soft drinks, even for a short period of time, causes dental erosion—and prolonged exposure can lead to significant enamel loss. Root beer products, however, are non-carbonated and do not contain the acids that harm teeth, according to a study in the March/April 2007 issue of General Dentistry, the AGD’s clinical, peer-reviewed journal.  That might be something to consider during the next visit to the grocery store. Consumers often consider soft drinks to be harmless, believing that the only concern is sugar content. Most choose to consume “diet” drinks to alleviate this concern. However, diet drinks contain phosphoric acid and/or citric acid and still cause dental erosion—though considerably less than their sugared counterparts. “Drinking any type of soft drink poses risk to the health of your teeth,” says AGD spokesperson Kenton Ross, DMD, FAGD. Dr. Ross recommends that … Read more

Impacted wisdom teeth can cause a variety of problems, including numbness in the jaw and the tongue. However, this is uncommon. Impacted lower (mandibular) wisdom teeth are often very close to a large nerve (inferior alveolar nerve) that controls feeling (sensation) to the lower jaw, teeth and tongue. Treatment of impacted wisdom teeth typically involves their surgical removal (extraction). This procedure may cause temporary numbness in your jaws, tongue and teeth. However, numbness in the lower jaw and tongue before surgical removal of impacted wisdom teeth is unusual and may indicate a problem that requires further evaluation. In some cases, impacted wisdom teeth can be associated with cysts and tumors — usually noncancerous. Other types of growths also can occur in the jaw area and result in the symptoms you describe. Consult your dentist about the numbness you’re experiencing. A … Read more

Two molar teeth of around 63,400 years old show that Neanderthal predecessors of humans may have been dental hygiene fans, the Web site of newspaper El Pais reported on Tuesday.The teeth have “grooves formed by the passage of a pointed object, which confirms the use of a small stick for cleaning the mouth,” Paleontology Professor Juan Luis Asuarga told reporters, presenting an archaeological find in Madrid. The fossils, unearthed in Pinilla del Valle, are the first human examples found in the Madrid region in 25 years, the regional government’s culture department said. Neanderthals were predecessors of modern humans who inhabited much of Europe, North Africa and parts of Asia from about 125,000 to 30,000 years ago. “There are two (teeth), perfectly preserved, in which the wear and tear of a human of about 30 years old is perceptible,” a government … Read more