What's the difference between a canker sore and a cold sore?
Canker sores are often confused with cold sores. An easy way to distinguish between
the two is to remember that canker sores occur inside the mouth, and cold sores
usually occur outside the mouth.
A canker sore is a small ulcer with a white
or grey base and red border. There can be one or a number of sores in the
mouth. Canker sores are very common and often recur.
A cold sore,
which is also called fever blister or herpes simplex, is composed
of groups of painful, fluid-filled blisters that often erupt around the lips
and sometime under the nose or under the chin. Cold sores are usually caused
by herpes virus type I and are very contagious.
Canker sores usually heal
in about a week or two. Rinsing with warm salt and water may help
reduce the irritation. Over-the-counter topical anaesthetics can
also provide relief.
Cold sores usually heal in about a week. Over-the-counter
topical anaesthetics can provide temporary relief and prescription
antiviral drugs may reduce these kinds of viral infections.
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How often should X-rays be taken?
How often dental X-rays should be taken depends on the patient's
individual health needs. Your dentist will review your history,
examine your mouth and then decide whether you need radiographs
and what type. If you are a new patient, the dentist may recommend
radiographs to determine the present status of the hidden areas
of your mouth and help complete a through examination.
The schedule
for needing radiographs at recall visits varies according to
your age, risk for disease, signs and symptoms. Recent x-rays may
be needed to detect new cavities, or to determine the status of gum
disease or for evaluation of growth and development in children.
Children often need X-rays more often than adults. This is because
their teeth and jaws are still developing and because their teeth
are more likely to be affected by tooth decay than those of adults.
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How do dental X-rays work?
When X-rays pass through your mouth during a dental exam, more X-rays
are absorbed by the teeth and bone than by the cheeks and gums
before striking the film. This creates an image on the x-ray. Teeth
appear lighter because fewer X-rays penetrated to reach the film.
Cavities and gum disease appear darker because they allow more
X-ray penetration. The interpretation of these X-rays allows the
dentist to accurately detect hidden abnormalities.
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How do I prevent cavities?
You can help prevent
cavities by following these tips:
- Brush two to three times a day with a fluoride toothpaste.
- Floss daily.
- Eat nutritious and balanced meals and limit snacking.
If unable to brush after a meal chewing gum or eating cheese
will help protect your teeth.
- Check with your dentist about use of supplemental fluoride, which
strengthens your teeth, and about use of dental sealants (a plastic
protective coating) applied to the chewing surfaces of the back
teeth to protect them from decay.
Visit your dentist regularly for
cleanings and oral examination.
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What are cavities?
Cavities are a destruction of the tooth enamel. They occur when foods containing
carbohydrates (sugars and starches) such as milk, pop, raisins, cakes or
candy are frequently left on the teeth. Bacteria that live in the mouth thrive
on these foods, producing acids as a result. Over a period of time, these
acids destroy tooth enamel, resulting in cavities. This process is also called "tooth
decay."
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I¹ve noticed a white patch in my mouth should I be concerned?
Any mouth sore that persists for more than a week should be examined
by your dentist. Leukoplakia is a thick, whitish-color patch that
forms on the cheeks, gums or tongue and is caused by excess cell
growth. It is common among tobacco users and can also result from
irritations such as ill-filling dentures or a habit of chewing
on one's cheek. The danger of leukoplakia is that it can progress
to cancer. Your dentist may want to take a biopsy if the leukoplakia
appears to be threatening.
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How often should I replace my toothbrush?
You should replace your toothbrush every three to four months, or
sooner if the bristles become worn, splayed or tattered. A hard,
brittle brush can injure your gums and cause undo wear on the enamel
of your teeth. Children's brushes may need to be replaced more
often, as they can wear them out more rapidly.
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Does it matter what kind of toothbrush I use?
Yes. Choosing the right toothbrush can help prevent damage to your
teeth and gums. Use a size and shape that feels comfortable and
allows you to reach the surfaces of every tooth. Replace your brush
if the bristles become worn or tattered. Ask your dentist what
type he\she recommends. There are several different types available,
including electric toothbrushes.
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What is the proper way to brush my teeth?
Thoroughly brushing twice a day, and cleaning between the teeth daily
with floss to remove plaque. Keep these tips in mind when brushing
your teeth.
- Use a soft-bristled toothbrush.
- Place the brush at a 45-degree angle
to the teeth and use a gentle tooth-wide, back-and-forth motion.
- Remember
to clean the inside teeth surfaces where plaque deposits are
heavy, and clean the back teeth and tongue.
- Replace your brush when the
bristles become tattered or worn about every three to four
months.
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Can I damage my teeth if I brush improperly?
Yes. Even though teeth are protected by a hard layer of enamel, they can become
worn out from improperly brushing your teeth. Toothbrush abrasion can occur
on all surfaces of the teeth as well as in the softer cementum that covers
the tooth roots, which can be exposed by receding gums. These exposed surfaces
can become more prone to decay. When you brush, be sure to use gentle, short
strokes.
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How do I clean between teeth?
Floss removes plaque from between the teeth and under the gum line,
areas where the toothbrush can't reach. If you haven't been in
the habit, it's never too late to start.
When flossing, keep in
mind these tips.
- Gently ease the floss between the teeth and gum
line, never snap it.
- Form a "c" against the sides of both
teeth and gently rub the floss up and down the tooth, moving it
from under the gum line to the top of the tooth.
- Establish a regular pattern
of flossing and remember to floss the backside of the last
teeth.
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How do I know if I have gum disease?
Periodontal (gum) disease affects three out of four adults at some time in
their lives. It doesn't necessarily hurt and you may not even be aware that
you have it until an advanced stage. If you notice any of these warning signs,
see your dentist:
- Gums that bleed when brushing.
- Persistent bad breath.
- Red, swollen or tender gums.
- A change in the fit of partial dentures.
- Puss between the teeth and
gums.
- Loose or separating teeth.
- A change in the way your teeth fit together
when you bite.
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What are some of the ways to treat gum disease?
Treatment methods depend upon the type of disease and how far the condition
has progressed. The first step is to remove plaque and tartar deposits beneath
the gum line. The tooth roots may also be planed to smooth the root surface,
allowing the gum tissue to heal and reattach to the tooth. In some cases,
the occlusion (bite) may require adjustment. This may require several visits
to the hygienist to complete a through cleaning.
Antibiotics may be recommended
to help control the growth of bacteria that cause periodontitis. A special
mouth rinse may be recommended that will help eliminate the growth of bacteria
as well.
When deep pockets between teeth and gums (4 to 6 mm or greater)
are present, it is difficult for the dentist to thoroughly remove
plaque and tartar. Patients can seldom, if ever, keep these pockets
clean and free of plaque. As a result of these factors surgery
may be needed to reduce the depth of those pockets. This often can
help to restore periodontal health.
Using a variety of surgical techniques,
the gum are lifted away to reach areas that require the removal
of tartar and plaque, which cause chronic infection and delay healing.
The tooth root is cleaned and smoothed to allow gum tissue to reattach
itself. The gums are sutured back into place or into a new position
that will be easier to keep clean at home.
Bone surgery may be used
to rebuild or reshape bone that has been destroyed. Grafts of the
patient's bone or artificial bone may be used, as well as the use
of membranes. The dentist may use splints or other appliances to
stabilize loose teeth and to guide the regeneration of tissue during
healing.
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How can I choose a dentist?
Here are some tips to keep in mind when choosing a dentist:
- Ask family, friends,
neighbours or co-workers for a recommendation.
- Ask your family physician.
- Check the Dental association of the city
or province you live in.
- Look at ads in the yellow pages and phone
to ask questions that are important you, such as: insurance
assignment, nitrous oxide (laughing gas), hours of operation.
- If you are moving,
your current dentist might provide you with a recommendation.
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What should I look for when choosing a dentist?
Consider the following:
- Is the appointment schedule convenient for you?
- Is the office easy
to get to from your home or job?
- Does the office appear to be clean,
neat and orderly?
- Does the dentist explain techniques that will
help you prevent dental health problems?
- Are special arrangements
made for handling emergencies outside of office hours? An emergency
number you can contact a dentist at?
- Is information provided about
fees and payment plans provided? You and your dentist are partners
in maintaining your oral health. Take time to ask questions and
take notes if that will help you remember your dentist's advice.
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What is the difference between a DDS and a DMD?
The DDS (Doctor of Dental Surgery) and DMD (Doctor of Dental Medicine) are
the same degrees. The difference is a matter of semantics. The majority of
dental schools award the DDS degree; however, some award a DMD degree. The
education and degrees are the same.
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What happens if I miss a dental appointment?
Dental offices vary on their policies for missed appointments. Ask
your dentist about his or her policy. Many dentists ask that you
call to cancel an appointment at least 24 hours in advance. This
will allow time for office staff the time to offer this appointment
to another client. Those who don't call to cancel may be charged
all or a portion of an office visit.
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When should you cancel an appointment if you feel ill?
If you feel up to the visit, keep it - unless you've got a fever, strep throat,
can't breathe well or are too uncomfortable to sit in the chair. If in doubt,
ask your dentist if the visit should be rescheduled.
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