“Doc, why do I get cavities despite brushing my teeth twice daily?”

Dr. Nilesh  Kadam (BDS, MDS).


Many patients ask this doubt to dentists. “Doc, why do I get cavities despite brushing my teeth twice daily?”

My patient, or rather everyone has these questions to ask about brushing their teeth.

  • Why should it be done then?
  • When and how should it be done effectively? How often should we do it?
  • Which toothbrush suits my need?
  • Shall I use powder or paste?
  • Am I going wrong somewhere?
  • is my calcium level low so I am getting these problems?
  • And many more

Let’s discuss in short about brushing and answer all these questions.


1. Why do we need to brush?

Our mouth has 32 teeth including wisdom teeth. By a natural process  there occur various food  deposits on tooth-gum interface, which get adhered to the surface of tooth. This is called plaque. This then calcifies to form calculus which can damage gums causing gum problems like bleeding, gum abscess, bad breath, etc.  Food which is retained  on tooth structure decomposes to release certain acids which are able to damage sound tooth structure.

So we need to remove such layers and deposits from our oral cavity, and it can easily be removed effectively with proper brushing for 2 min twice daily.


2. Do we brush once or twice?

Brushing once with sound technique is also sufficient for some. But recommended frequency is brushing twice daily; once in the morning and once at night before going to bed.

Rinsing your mouth after food is also a good habit to maintain your oral health.


3. Which toothbrush should I use?

Toothbrushes are available in four different varieties:

  • Hard
  • Medium
  • Soft
  • Extra soft

We recommend soft toothbrushes.


4. Why not hard toothbrushes? Won’t they clean better?

This is a common misconception. Hard toothbrushes damage tooth structure by friction if individual brushes vigorously.

For older individuals we advise only soft or extra soft toothbrush to avoid damage to soft tissues around the tooth.


5. Which toothpaste is the best?

You may use any brand of toothpaste available in the market. Medicated and/or fluoridated toothpaste is advantageous to oral health.


6. How much time should I brush for?

Recommended time for brushing in 2 min if it is done in proper way.

So anything more than 2 min is hazardous to the teeth as it causes abrasion of tooth structure.


7. How to brush effectively? 

Most commonly followed brushing technique is horizontal strokes which is wrong and is detrimental to your oral health and tooth structure.

What you instead need to do is use sweeping motion.

For upper teeth go from up to down and for lower teeth go from down to upward and repeat this process gently to dislodge any stuck food particles.


So in conclusion, if you brush regularly and using the proper technique twice daily you can help maintain good oral health. However, a visit to the dentist every six months at the very least is also highly recommended to check for cavities and to ensure that your teeth and gums remain in pristine condition.


Contact Dr. Kadam Dental Clinic  


Thanks for reading!

Stay tuned for next blog entry on ‘Root Canal Treatment facts’.

Dr. Nilesh  Kadam (MDS, BDS)

Principal Dentist – M.D.S. Conservative, Endodontics and Aesthetic dentistry

Comments 4

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    Very informative article, Dr.Nilesh Kadam. Thanks for knowledge sharing.

    Very informative, practical and true

    why, where, when and how… all questions answered… well done sir!!!

    Thanks for information doctor.

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