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Dr. Poornima. R

Dentist, Chennai

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Dr. Poornima. R Dentist, Chennai
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My experience is coupled with genuine concern for my patients. All of my staff is dedicated to your comfort and prompt attention as well....more
My experience is coupled with genuine concern for my patients. All of my staff is dedicated to your comfort and prompt attention as well.
More about Dr. Poornima. R
Dr. Poornima. R is a trusted Dentist in Velachery, Chennai. He is currently practising at Department of Prosthodontics, SBDCH in Velachery, Chennai. Don’t wait in a queue, book an instant appointment online with Dr. Poornima. R on Lybrate.com.

Lybrate.com has an excellent community of Dentists in India. You will find Dentists with more than 41 years of experience on Lybrate.com. You can find Dentists online in Chennai and from across India. View the profile of medical specialists and their reviews from other patients to make an informed decision.

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Department of Prosthodontics, SBDCH

Velachery Main Road, Narayanapuram, Pallikarani, ChennaiChennai Get Directions
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BDS
Dentist, Motihari
What's in Your Mouth?
To understand what happens when your teeth decay, it's helpful to know what's in your mouth naturally. Here are a few of the elements:

Saliva ? Your mouth and teeth are constantly bathed in saliva. We never give much thought to our spit, but this fluid is remarkable for what it does to help protect our oral health. Saliva keeps teeth and other parts of your mouth moist and washes away bits of food. Saliva contains minerals that strengthen teeth. It includes buffering agents. They reduce the levels of acid that can decay teeth. Saliva also protects against some viruses and bacteria.

Plaque ? Plaque is a soft, gooey substance that sticks to the teeth a bit like jam sticks to a spoon. Like the slime that clings to the bottom of a swimming pool, plaque is a type of biofilm. It contains large numbers of closely packed bacteria, components taken from saliva, and bits of food. Also in the mix are bacterial byproducts and white blood cells. Plaque grows when bacteria attach to the tooth and begin to multiply. Plaque starts forming right after a tooth is cleaned. Within an hour, there's enough to measure. As time goes on, the plaque thickens. Within two to six hours, the plaque teems with bacteria that can cause cavities and periodontal (gum) disease.

Calculus ? If left alone long enough, plaque absorbs minerals from saliva. These minerals form crystals and harden into calculus. Then new plaque forms on top of existing calculus. This new layer can also become hard.

Bacteria ? We have many types of bacteria in our mouths. Some bacteria are good; they help control destructive bacteria. When it comes to decay, Streptococcus mutans and Lactobacilli are the bacteria that cause the most damage to teeth.

How Your Teeth Decay
The bacteria in your mouth need food to live and multiply. When you eat sugary foods, or even starches such as rice, the bacteria use them as food, too. The bacteria then produce acids that can dissolve tooth enamel (outer layer of the tooth).

It's not just candy and ice cream we're talking about. All carbohydrate foods eventually break down into simple sugars. Some of this process begins in the mouth.

Foods that break down into simple sugars in the mouth are called fermentable carbohydrates. These include the obvious sugary foods, such as cookies, cakes, soft drinks and candy. But they also include pretzels, crackers, bananas, potato chips and breakfast cereals.

Bacteria in your mouth turn the sugars in these foods into acids. These acids begin to dissolve the mineral crystals in teeth. The more times you eat each day, the more times your teeth are exposed to an acid attack.

This attack can lead to tooth decay, also known as dental caries or cavities. First, the acid begins to dissolve calcium and phosphate crystals inside a tooth. A white spot may appear on the enamel in this weakened area. But the loss of minerals develops beneath the surface of the enamel. The surface may still be smooth.

At this stage, the tooth can be repaired with the help of fluoride, proteins and minerals (calcium and phosphate) in the saliva. The saliva also helps reduce the acid levels from bacteria that attack the tooth.

Once the decay breaks through the enamel to cause a cavity, the damage is permanent. A dentist must clean out the decay and fill the cavity. Left untreated, the decay will get worse. It can destroy a tooth all the way through the enamel, through the inside dentin layer and down to the pulp or nerve of the tooth. That's why it is important to treat caries at a very early stage, when the process can be reversed.

Types of Decay
Young children can get a type of decay called baby bottle tooth decay or early childhood caries. It destroys enamel quickly. This type of decay is common in children who are put to sleep with a bottle of milk or juice. The bottle exposes the teeth constantly to carbohydrates through the night. Bacteria can grow rapidly and produce acid that decays teeth.

Decay can become worse if the parent does not clean the child's teeth. It can eat through enamel and leave a large cavity in a matter of months.

In older adults, the exposed roots of teeth can develop cavities. This is called root caries. Older adults are more likely to have receding gums caused by years of hard brushing or periodontal disease. They also are more likely to have dry mouth (xerostomia). The decrease in saliva results in less protection of the teeth. This increases the risk of decay. Many common medicines can cause dry mouth. Be sure to ask the doctor or pharmacist if any of your medicines cause dry mouth.

Decay can form beneath fillings or other tooth repairs, such as crowns. Sometimes bacteria and bits of food can slip between the tooth and a filling or crown. This can happen if the filling cracks or pulls away from the tooth, leaving a gap.

Preventing Cavities
Do you or your family members get cavities often? Dental research has found out that certain factors can affect your risk of tooth decay. These factors include:

The current number of decayed or filled teeth
Your fluoride exposure, including fluoride in drinking water, toothpaste and rinses, and fluoride treatments in the dental office
Parents or siblings with dental decay
How well you take care of your teeth
The amount of saliva and the balance of minerals, enzymes and buffering agents it contains
How often and what types of foods you eat (especially fermentable carbohydrates)
Ask your dentist about the best ways to reduce your risks and limit dental decay.

To prevent your teeth from decaying, you can do three things:

Strengthen your teeth's defenses with fluoride, sealants and agents that contain calcium and phosphate ions.
Have your dentist or dental hygienist place sealants on your back teeth.
Reduce the number of bacteria in your mouth.
Fluoride penetrates into teeth. It strengthens them by replacing minerals that acid has removed. The benefits of fluoride to teeth were first discovered in the 1930s. Dentists started to notice that people who drank water that naturally contained fluoride had less tooth decay. In 1945, communities started to add fluoride to water supplies. Adding fluoride to water systems has been the most successful cavity prevention method to date.

In the early 1960s, fluoride also began to be added to toothpaste. This also had a major impact on cavity prevention. Now almost all toothpastes contain fluoride. Everyone should brush with a fluoride toothpaste every day. Dental offices sometimes recommend higher levels of fluoride in toothpastes, gels and mouth rinses for both children and adults.

Sealants are protective coatings placed over the tops of the back teeth ? molars. They block bacteria and acids from sticking in the tiny grooves on the chewing surfaces of these teeth. Sealants can be placed in adults and children. Children can have sealants placed on their permanent molars once they come in, around age 6. Sometimes they are also used on primary (baby) molars. Dentists can put sealants on molars with signs of early decay, as long as the decay hasn't broken through the enamel.

You can never get rid of all the bacteria in your mouth. But you can take steps to control and disrupt the bacteria so they don't attack your teeth:

Brush twice a day.
Floss daily.
Reduce the number of times each day that you consume fermentable carbohydrates.
Some mouthwashes reduce bacteria in your mouth. This can help prevent decay. Chewing sugarless gums, especially those with xylitol, can help reduce the number of bacteria that cause cavities and increase the flow of saliva.

Most importantly, visit your dentist regularly. Then the dentist can find any decay early, when it can be treated and reversed.

How I cleaning yellow teeth of my 2 years child if brushing she swallowed tooth paste i'm so worried about that.

MDS-Pedodontist, Fellowship in Pediatric Dentistry
Dentist, Greater Noida
How I cleaning yellow teeth of my 2 years child if brushing she swallowed tooth paste i'm so worried about that.
Your concern is quite valid, that's why you need to get counselled for right brushing approach for your small child so that you can provide him/her best care. A child specialist in dentistry would be the best person to guide for same.
12 people found this helpful
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The corner of my teeth have became brown. Probably due to chewing tobaco. How to clean them fast?

BDS
Dentist, Bangalore
The corner of my teeth have became brown. Probably due to chewing tobaco. How to clean them fast?
Not all tobacco stains can be removed by scaling alone. You may need bleaching to get rid of internal stains.
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Hi sir I'm facing teeth enamel loss problems very teeth pain and rubbing Pls give suggestions.

BDS
Dentist, Indore
Hi sir I'm facing teeth enamel loss problems very teeth pain and rubbing Pls give suggestions.
Hello lybrate-user, Visit a dentist near by and for enamel repair ise colgate enamel pro relief tooth paste with colgatesilky soft tooth brush. THANK YOU
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Hello, my son has a very small cavity like a tip of a needle on his teeth near the jaw joint. Please let me know if there are any restrictions on eating food for 1 or 2 days after the cavity is filled? Thanks in advance.

BDS
Dentist, Mumbai
Hello, my son has a very small cavity like a tip of a needle on his teeth near the jaw joint. Please let me know if t...
Kindly visit a dentist in your locality and get your son's teeth checked and treated if need be. After a filling there maybe restrictions for eating for 30-45 minutes if needed, depending on the filling material used.
1 person found this helpful
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My front teeth are loose any suggestion for my problem I think it is because of gum disease.

B.D.S
Dentist, Bangalore
My front teeth are loose any suggestion for my problem I think it is because of gum disease.
Hi sir gums if weak will lead to loosening of teeth. Please see your dentist for professional deep cleaning and subsequent treatment.
2 people found this helpful
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I'm 22 years old, I had cavities and it has been filled 2 months ago but now it's like something stuck there and a bit pain in gums. What should I do?

BDS, MDS
Dentist, Gorakhpur
I'm 22 years old, I had cavities and it has been filled 2 months ago but now it's like something stuck there and a bi...
Most probably the filling is broken and lodged in gum due to occlusal/ chewing forces. If so, it has to be filled again and gum will heal once broken material is removed, you can try among orasore gel, rexidine m forte gel, dentogel, dologel CT etc whatever is prescribed by your dentist at that time. If filling breaks again and again, ask for capping as a Permanent solution.
1 person found this helpful
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I am having white circle on my teeth. So how to remove white circle from my teeth? Please

MDS - Oral & Maxillofacial Surgery
Dentist, Chennai
I am having white circle on my teeth. So how to remove white circle from my teeth? Please
Kindly consult a dentist in person for further suggestion. We need more investigations to decide upon treatment. You may need artificial enamel filling or bridging. You may consult me too.
1 person found this helpful
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Braces - Which Type Is Best For You!

BDS
Dentist, Delhi
Braces - Which Type Is Best For You!

If you are advised to wear braces, it could be due to crooked / improperly positioned teeth which are not cosmetically pleasing or are not very efficiently chewing the food. Today, there is a big variety of braces available to correct the problems. Although all braces serve a similar purpose, but not all braces are suitable for everyone. Here, I am trying to explain some of the types of braces available, which will help you in a better understanding of braces. 

  1. Metal braces: These braces are placed in the outer side of the teeth . A wire is then placed in the brackets which helps in realigning your teeth. This wire needs to be replaced from time to time with other wires usually the wires are replaced in 4 to 6 weeks. This type of braces are the most are the most affordable of the lot and thereby the most common choice. 
  2. Ceramic braces: These types of braces are very similar to the metal braces in terms of functionality. The advantage of ceramic braces is that they resemble the colour of the teeth and are less noticeable. These braces are costlier than their metal counterpart and take a longer time to mount. One common complaint about these braces is that they become yellowish over time. It is therefore very important to clean your teeth properly on a daily basis. 
  3. Lingual braces: Lingual braces mounted at the back of the teeth. As a result, these braces are hardly visible. They are typically recommended to those whose teeth are not very crooked and the amount of teeth straightening required is very less. These braces are ideal for those patients who require an orthodontic device for a long time. They require very good oral hygiene and are also expensive when compared to other braces. 
  4. Damon braces / Self-ligating braces: Damon braces can be mounted on any patient who is fit to get for regular braces. These braces do not require any extra attachment for holding the wire in place. The wire can straight away pass through the brackets making the treatment time shorter by a good six months or so. The healing process tends to be faster with these braces and is one of the easier ones to mount onto the teeth. 

They are costing almost close to the cost of the lingual braces. These details are to give you a broad overview of the types of fixed braces available. Your orthodontist will be able to discuss the pros and cons of each after analysing the changes needed and desired. If you wish to discuss about any specific problem, you can consult a dentist.

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