Online Dental Education Library
Ones healthy smile depends on simple dental care habits, such as brushing and flossing. Please follow these steps to protect you and your loved ones oral health.
Brushing for proper oral health
Consider these brushing basics from the American Dental Association:
Brush your teeth at least twice a day. When you brush, don’t rush. Take enough time to do a thorough job.
Use the proper equipment. Use a fluoride toothpaste and a soft-bristled toothbrush that fits your mouth comfortably. Consider using an electric or battery-operated toothbrush, especially if you have arthritis or other problems that make it difficult to brush effectively.
Practice good technique. Hold your toothbrush at a slight angle against your teeth and brush with short back-and-forth motions. Remember to brush the inside and chewing surfaces of your teeth, as well as your tongue. Avoid vigorous or harsh scrubbing, which can irritate your gums.
Keep your equipment clean. Always rinse your toothbrush with water after brushing. Store your toothbrush in an upright position, if possible, and allow it to air dry until using it again. Don’t routinely cover toothbrushes or store them in closed containers, which can encourage the growth of bacteria.
Know when to replace your toothbrush. Invest in a new toothbrush or a replacement head for your electric or battery-operated toothbrush every three to four months — or sooner if the bristles become frayed.
Flossing for proper oral health
You can’t reach the tight spaces between your teeth or under your gumline with a toothbrush. That’s why daily flossing is important. When you floss:
Don’t skimp. Break off about 18 inches (46 centimeters) of dental floss. Wind most of the floss around the middle finger on one hand, and the rest around the middle finger on the other hand — leaving about 1 inch (3 centimeters) to floss your first tooth.
Take it one tooth at a time. Use your thumbs and forefingers to gently pull the floss from the gumline to the top of the tooth to scrape off plaque. Rub the floss against all sides of the tooth. Unwind to fresh floss as you progress to the next tooth.
Keep it up. If you have trouble getting floss through your teeth, try the waxed variety. If it’s hard to manipulate the floss, use a floss holder or an interdental cleaner — such as a dental pick or stick designed to clean between the teeth.
With proper care, your teeth can last a lifetime. But some amount of wear as we age is normal. By “wear,” we mean loss of tooth structure. Wear starts with loss of the hard, translucent enamel that forms the outer covering of teeth, and might, in more serious cases, progress to the softer inner tooth structure known as dentin.
Enamel is actually the human body's hardest substance. It is highly mineralized and non-living, in contrast to bone and dentin which are living tissues. Enamel is highly resistant to wear and chemical attack, as it would have to be given what your teeth do every day: bite, chew, and come in contact with acidic foods and drinks.
Still, it is possible for tooth enamel to wear down for various reasons. Your body has ways of compensating for minor wear. But when tooth wear becomes more significant, intervention may be necessary to keep your bite functioning properly and protect your teeth.
Types of Tooth Wear
Tooth wear can result from one or more of these processes:
Abrasion: This is caused by the interaction of teeth and other materials rubbing or scraping against them. The most common source of abrasion is traumatic toothbrushing, meaning that you are using a toothbrush that's too hard or applying too much force when you brush. This can affect the root surfaces of your teeth just below the gum line or the enamel above the gum line. Other causes of abrasion can include improper use of toothpicks and dental floss. Some dental appliances such as partial dentures or retainers that are frequently taken in and out of the mouth can also abrade teeth. Abrasion can also result from a diet loaded with abrasive foods like sun flower seeds and nuts or habits such as nail-biting and pen-chewing.
Attrition: This is an effect of tooth-to-tooth contact, which happens many times throughout the day as your teeth bite and chew food. Biting and chewing normally generate forces between 13 - 23 pounds. Yet people who have clenching and grinding habits (of which they might not even be aware) can subject their teeth to forces up to 10 times that. This can damage teeth.
Erosion: When your teeth come in contact with acidic substances in your diet, the acid can actually erode (dissolve) the enamel on your teeth. Culprits of this kind of tooth wear often include sodas, sports drinks and so-called energy drinks. Certain fruit juices are also acidic. Confining these drinks to mealtimes and swishing water in your mouth after drinking them can help prevent this erosion.
Abfraction: This refers specifically to the loss of tooth enamel at the necks of the teeth (the thinner part right at the gum line). While this type of wear is not clearly understood and the cause is debated in dentistry, loss of tooth structure at the neck of teeth does happen. It is believed to be caused by tooth flexion from biting forces. Abrasion and erosion can contribute to this problem.
Treating Worn Teeth
In order to treat your worn teeth, the cause of the wear must be determined during a simple oral examination at the dental office. Once the cause has been identified, the stresses on your teeth can be reduced if need be. For example, you may need instruction on gentle, effective tooth brushing techniques; or some changes to your diet. If you have a clenching or grinding habit, a mouthguard can be custom-made for you that will protect your teeth during sleep or periods of high stress.
Lost tooth structure sometimes needs to be replaced so your bite functions properly and your teeth look great once again. Depending on the situation, this can be done with bonding, veneers, or crowns. Fortunately, modern dentistry can restore the normal shape, appearance and function of worn teeth — beautifully and successfully!
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