It is common knowledge to us dentists that using tooth brush with the guidance of dentists and many addtional methods are essential for preventing dental caries and periodontal disease completly.
Just tooth brushing is not enought.
But it is also true that without awareness for the health and motivation for toothbrushing, there is no way ahead.
The first thing we should make popular by this project is tooth brushing using a common toothbrush. Also, awareness of harmness of excessive sugar consumption and chewing tobacco.

Then, other techniques will be needed to really reduce caries and periodontal disease.
An inexpensive and effective method would be an interdental brush and dental floss.
A good commentary about dental floss and interdental brush has been posted by a Japanese long-established company "Lion".
Link to Lion

As for dental floss, it is better to use holder attached ready type as floss is not used widly in Bangladesh yet.
( Many very cheap products are available at supermarkets and drug stores in Japan. )

Interdental brushes are more expensive than dental floss.
There are many products sold in general supermarkets and drug stores, and some products used for treatment of periodontal diseases under the guidance of dentists in dental clinics.



(Products in comsumer markete may have a low therapeutic effect in order to be safe for anyone.)

The sizes L and S of the PROSPEC(GC) are shown on the left and right, and the M size of the SHOFU's Windent in the middle, in the photos.
Both products are common at Japanese dental clinics..