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Dr. Rangarajan

Dentist, Chennai

Dr. Rangarajan 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. Rangarajan
Dr. Rangarajan is a renowned Dentist in Laksha Hospital, Chennai. Doctor is currently practising at the iDentity Clinic in Laksha Hospital, Chennai. Don’t wait in a queue, book an instant appointment online with Dr. Rangarajan on has an excellent community of Dentists in India. You will find Dentists with more than 32 years of experience on 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.


Languages spoken
Professional Memberships
Indian Dental Association
Indian Prosthodontic Society
Indian Society of Oral Implantologist


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Is tongue fissures can be healed? Will tongue become normal again? Is fissured tongue is a disease or symptom of another disease? Is fissured tongue a matter of concern?

MDS - Oral & Maxillofacial Surgery
Dentist, Chennai
It’s called fissured tongue. It is s a benign condition characterized by deep grooves (fissures) in the dorsum of the tongue. Although these grooves may look unsettling, the condition is usually painless. Clean the surface of the tongue with a tongue cleaner to prevent any bacterial or fungal infection.
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I'm having swelling at the end of both of my jaws and under the ear lobes, when checked with a doctor, he told me that could be a viral infection, please let me know a remedy or suggest a specialist doctor, I can visit.

PGD IN ULTRAASONOGRAPHY, Non invasive cardiology course, MD - Medicine, MBBS
General Physician, Narnaul
It is due to mumps parotitis. Conservative, supportive medical care is indicated for patients with mumps. No antiviral agent is indicated for treatment of this viral illness, as mumps is a self-limited disease. Encouraging oral fluid intake is essential, as maintenance of adequate hydration and alimentation of patients is important. Refrain from acidic foods and liquids as they may cause swallowing difficulty, as well as gastric irritation. Prescribe analgesics (acetaminophen, ibuprofen) for headaches or discomfort due to parotitis. Topical application of warm or cold packs to the swollen parotid area may soothe the region. Stronger analgesics may be required for patients with orchitis. Bed rest, scrotal support, and ice packs are recommended.
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I am 18 years old. and I have problem with my mouth. When I brush my teeth whole mouth feels like itching. So I have changed my toothpaste from anchor to colgate. But it's not working. My problem was not solve. Second problem is that I have stretchmarks on my tummy and thigh. So how can I remove it. and I am fat and my weight is 65 jd height is 4'7" it's because of more weight.

Dentist, Kolar
Use proper brushing techniques with a fluridated toothpaste. Brush, floss n use mouthwash twice daily. Massage your gums with your finger tips after brushing. Keep your tongue clean. Rinse your mouth well after each meal. Visit your dentist for dental checkups every 6 months to detect n prevent dental probs and also get scalling done once in a year.
1 person found this helpful
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Bleaching for Extra White Teeth

Bleaching for Extra White Teeth

The smile is the first thing we notice about a person, and more than anything else, it reveals the teeth first. We all yearn for that set of perfectly aligned teeth that are pearly white in color. However, this is not a reality in all people.

Due to various reasons, the teeth are not always bright and white. In some cases, the high fluoride content in the water can lead to fluorosis, which causes irregular patches on the teeth. Chewing tobacco and smoking are another reason for teeth discoloration, ranging from yellow to brown to black. The most inevitable of all reasons is ageing, where they naturally change to a darker shade of yellow. However, dental technology has also improved to come up with various solutions, so that the dream for that set of pearly whites can be made a reality.

Bleaching is by far the most commonly used method for teeth whitening. The tooth has an outer layer called enamel, a next layer called dentin, and a final inner layer called the pulp. The enamel contains organic particles that give the tooth its color, and the bleach material attacks these organic particles and thereby removes the stains.

It is always advisable to use tooth bleaching under the supervision of a dentist. A thorough examination and diagnosis is required before deciding on one of the two modes of bleaching.

  1. In-office bleaching: This involves use of whitening gels that are not available over the counter. The gel is applied on the discolored portions of the teeth to leave a whiter tooth behind after the stipulated time.
  2. Home bleaching: In cases where more regular application is desired, the patient is given a kit which has customized trays and the whitening gel. The patient is educated on a schedule including how and when to apply the gel and instructions for this application.

In addition, for minor discolorations, there are other options as below:

  1. Whitening strips: These strips are similar to adhesive bandage and contain the bleaching agent. They are applied onto the tooth and left for usually about 30 minutes to take effect.
  2. Brush-on whitening: These gels are applied directly on the tooth and left for a while or overnight if required.
  3. Whitening chewing gum: For the chewing gum lovers, this could be an option. These chewing gums are similar to any chewing gum but include bleaching agents.

Side effects: Sensitivity and gum irritation are the two common side effects of bleaching. This could be either from the chemical or the trays that are used. The need to repeat the treatment again is another shortcoming. Repeated visits to the dentist may be needed once or twice a year to maintain the pearly white smile!

3134 people found this helpful

Benefits of Fruits and Vegetables

Dentist, Ghaziabad
Benefits of Fruits and Vegetables

Fruits and vegetables which require continuous biting like apples, carrots and corn should be avoided as it can become quite difficult while the braces are on.

11 people found this helpful

I am 66 years old and my dentist has told me to go for a gum surgery.Please suggest

MDS Prosthodontics, BDS
Dentist, Chandigarh
For what has he suggested u that. I can suggest only after having a clinical examination of your condition.
2 people found this helpful
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Hello Dr. I am 20 years old. I am having a tooth cavity in last 4 teeth (2-2each side) I pains alot. I am unable to eat hot and cold things whenever I ate them they pains alot and I feel painful sensations. I have never consumed more sweets or chocolates during my childhood. please tell me why it is happening so. Also sometimes I become very irritated due too bad breath from those teeth. I dnt want them to increase and affect me n my personality. Suggest me the treatment. Some of my known have suggested me of root canal or filling I am afraid of pain. My ques are 1) why it is happening? Coz I dnt consume lots of sweets or chocolates 2) a way to get rid off pain and sensitivity 3) can I repair my teeth again as I want to with any natural method? 4) what is the medical long term treatment for this? Will it be painful? 5) how can I improve my breathe? Dear Dr. I'll b very thankful to you for your concern. please help me.

Dentist, Ahmedabad
First of all, 1- Having sweets or chocolates is not the only cause of tooth cavity. Any kind of incleaned food that lodges onto tooth surface leads to tooth decay. 2- For tooth sensitivity you can use any sensitivity tooth paste commercially available. 3- Once tooth decay occurs there is no natural method available for it but ya you can stop it from occuring by maintaining a good oral hygine and by scaling ( cleaning of teeth ) at thr interval of 5-6 months every year and by proper brushing technique. 4- If the decay is not too deep we can save the tooth by restoring it with dental cements, and if the cavity is too deep we can save it by root canal treatment followed by placement of crown ( i.e. cap ) - Now days root canal treatment is 100 % pain free treatment. 5- To improve breath , do brushing twice a day as well as forceful gargles everytime you take food. - And undergo scaling ( cleaning of teeth ) every 6 months
1 person found this helpful

Hello doctor my self kavita sisodiya I am 31 year old married woman I have teeth pain problem and cavity problem last five months what should I do please tell me doctor.

Dentist, Bangalore
cavities has to be filled from dentist soon,before it progress deeper inside teeth. . if pain is due to cavity ,then you have to go for root canal treatment. ..visit to a dentist for examination and proper treatment. .
1 person found this helpful
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Can Chocolates Cause Tooth Decay?

MDS, BDS, Sedation(Inhalation) Specialist
Dentist, Hyderabad
Can Chocolates Cause Tooth Decay?

One warning that most children would have heard from their parent or other elders is, 'don’t eat chocolates, your teeth will get decayed'. And, most children grow up believing this to be true. As this is a global statement thus, more and more research has been done to clarify this. (Learn more to maintain Oral Health in Children)

Let us understand in brief the basic process of tooth decay. The tooth is made of mineralized layer called the enamel that is covered constantly with saliva. There are thousands of bacteria in the mouth. Food substances gradually deposit on the teeth and form plaque (learn more about plaque problem). This combination of a moist environment and bacteria on a mineralized structure produces the ideal environment for bacteria to act and produce acids which break down the minerals in the enamel. This is the first step in the origin of decay. The acid produced attracts more bacteria which further leads to worsening of the decay.

Some of the facts correlating chocolates and tooth decay are as follows:

  1. Chocolates in particular do not cause tooth decay. Very often, children tend to eat chocolates in between their meals and do not rinse or brush. This leads to greater level of plaque formation, thereby, starting off the process of decay. Not just chocolates any sticky foods can lead to tooth decay. What needs to be enforced is a habit to brush or at the least rinse thoroughly after eating a chocolate bar. In fact, this could be used as a reward, and it can help food deposits formed from other foods also to be washed away. The child gets to eat a chocolate, and good oral hygiene is reinforced too!
  2. Eating a chocolate before the actual meal is a way to indulge. What happens is that there is no sticky residue on the teeth if eaten this way. The child gets to enjoy chocolate at the same time keeping the teeth away from decay.
  3. Another habit is to make sure that the child eats all of chocolate at one shot than to keep nibbling at it for hours. That way, the chocolate can be managed with one round of brushing or rinsing
  4. it is advisable to give the child their share of chocolate at night, as most kids brush teeth before going to bed.
  5. Dark chocolates contain a good amount of antioxidants and are believed to reduce the incidence of plaque formation and therefore, they counter the effect of acids produced by the bacteria.

So, the next time someone talks about chocolates causing all the tooth decay, tell them it is not that bad, you can have your chocolate and eat it too!!

3101 people found this helpful

BDS, Diploma in Hospital Administration, Diploma in Pharmacy
Dentist, Delhi
The psychodynamic explanation of the dentist–patient relationship
From a psychodynamic viewpoint dental healthcare is a 2-person endeavour. It is the dentist working with the patient and the patient being able to accept (use) the work (treatment) offered and provided by the dentist. It acknowledges that there is a uniqueness in the interaction for both dentist and patient while accepting the potential for inequalities within the interaction. Nevertheless it requires the health professional to remain flexible, to be able, as the need arises, to make adjustments in treatment plans thereby maximising status equality while minimising the potential for disruptions within the relationship. Benefits exist for the dental health professional when the equality between themselves and their patients is maintained. These include improved time and behavioural management skills, increased awareness of their patients' concerns and anxieties, the ability to readjust treatment plans and to provide patient-centred care
8 people found this helpful

Pain Management

MD - Physical Medicine & Rehabilitation
Pain Management Specialist, Delhi
Pain Management

Diagnose root cause of your pain at an early stage because improperly diagnose & treated pain can create lot of problems in future.

6 people found this helpful

My teeth color is changing from white to yellow. What i have to do To prevent this ?

Dentist, Mumbai
Use a powered/battery operated tooth brush for better brushing and avoid stained beverages and colors in food-schedule a cleaning appointment with local dentist.
1 person found this helpful
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At the time of brush, blood starts leaking just a small touch of brush to the gums. Is that any solution to prevent the blood leakage from the gums?

DHMS (Diploma in Homeopathic Medicine and Surgery)
Homeopath, Ludhiana
Homoeopathic medicine MERC SOL 30 ( Dr Reckeweg) Drink 5 drops today night and forget this medicine PLANTAGO Q/HAMMEMELIS Q ( Dr Reckeweg) Mix both these medicines and take 10 drops in 20 ml fresh water 3 times daily for 2-3 months HEKLA LAVA TOOTH POWDER ( WHEEZAL ) Scrub teeth daily night before sleep Use a good quality brush with soft bristles and use it upside down on your teeth.
2 people found this helpful
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Hello Sir. Mere Teeth main se Kabhi Kabhi Blood Nikalta hai. , Please uske Liye mujhe Koi Treatment Batayen jisse meri ye Problem Solve ho sake ,

MDS Prosthodontics, BDS
Dentist, Mumbai
Bleeding can be caries or gum issues. If its caries you need to undergo a root canal procedure followed by cap on it. This procedure may require 5-7 visits to a dentist depending on the severity of the infection and caries. If gum issues are there you need to get scaling and polishing done from a dentist. Also incorporate use of dental floss in your daily oral hygiene procedure. Visit a dentist at your earliest.
1 person found this helpful
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Tooth Removal - Really Required?

Dentist, Bangalore
Tooth Removal - Really Required?

Teeth are one of the most precious parts of the human body.  By playing a significant functional and structural role in aesthetics, facial appearance, and food habits, digestion and chewing, all efforts at maintaining them should be undertaken. As we all know, we have two sets of teeth, primary or deciduous and the permanent set. Let us discuss tooth removal in these two sets separately.

Primary Teeth
In the primary teeth, the main indication would be dental decay.  If the tooth is severely damaged beyond repair with fillings, then removal could be an option, with two things considered. The primary successor will erupt within the next 6 months; if not, a space maintainer would be put in place.

Another reason would be if the tooth is beyond its lifecycle and is blocking the eruption of the successor, then it requires removal.

The permanent teeth, however, are a set that are meant to last for a lifetime and removal should be considered only as a last resort. With advances in dental treatment methods, gone are the days when removal would be an option for severe decay. 

Some of the absolute indications for removal would be:

  1. Wisdom teeth: if it is erupting in abnormal position (flattened or crooked), then removing them to avoid infection and impingement on other teeth needs to be considered. Wisdom teeth infection is one of the most common causes requiring tooth removal. 
  2. Recurrent infections: If a tooth has been root canal treated, but continues to have ongoing chronic infection, it could be a case for removal.
  3. Malformed or supernumerary teeth: These may also block eruption of other teeth into the mouth. 
  4. Orthodontic treatment: In cases where the jaw size is really not sufficient to realign the mal-positioned or crooked teeth, the first premolar is often sacrificed, and this space is used to align the other teeth. 
  5. Injuries: In case of accidents or injuries with jaw fractures, teeth in the line of fracture may need to be removed. 
  6. Preparation for dentures: In cases of severe periodontal disease, where the mobility of the teeth is high and complete dentures are being considered as an option, teeth removal may be planned.  Also, if there are teeth which are in the line of fixed partial dentures, again removal might be planned
  7. Radiation therapy: For head and neck cancer patients, if there are teeth in the line of radiation, then removal might be planned.

Unlike in the earlier years, the absolute indications for removing tooth have changed.  A thorough examination, both oral and radiological, should be done before zeroing on extraction.

3664 people found this helpful

I have tooth and little cough problem. Smell is coming out of my mouth when I eat something. And also little cough is stored in throat. What should i do?

General Physician, Cuttack
You may be having gingivitis.Do Listerine mouth wash 2-3 times dailymconsult dentist for advice.Your throat problem could be because of spread of infection from gums.You have to take a course of antibiotic also
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Dentist, Bhavnagar
Healthy teeth. Healthy life. Make your teeth strong and healthy and be healthy.

Mera masura dheere_dheere ghis hai aur daanton ke beech me space aa rha hai. Aur teeth v ghis rha hai. Aisa kyun ho rha hai. Iska upay.

BDS, CDE Endo-Prostho, CDE - Cast Partial & Complete Dentures
Dentist, Pune
Hello, it seems you have gum problem. get your deep scaling and polishing done and consult to a good Periodontist.
8 people found this helpful
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My aunt has yellowish layer on her teeth and she wants to get rid of it. What to do?

Dentist, Chennai
Hi, can undergo complete full mouth scaling (teeth cleaning) and if necessary can go for teeth whitening procedure.
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I am 34 yrs old. I have problem of bad breath. I dont have any dental issue. What could be the reason?

Dentist, Bangalore
Bad breath can be reduced or prevented if you: practice good oral hygiene. Brush twice a day with fluoride toothpaste to remove food debris and plaque. Don't forget to brush the tongue, too. Replace your toothbrush every 2 to 3 months or after an illness. Use floss or an interdental cleaner to remove food particles and plaque between teeth once a day. See your dentist regularly -- at least twice a year. He or she will conduct an oral exam and professional teeth cleaning and will be able to detect and treat periodontal disease, dry mouth, or other problems that may be the cause of bad mouth odor. Drink lots of water. This will keep your mouth moist. Chewing gum (preferably sugarless) stimulates the production of saliva, which helps wash away food particles and bacteria.
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