Dr. Pranav Nirmalbhai Shah
Dr. Suhani P. Shah
Know Your Teeth
Basic anatomy of teeth


Structure of a tooth

Structurally, each tooth is composed of
i> the enamel covering the projecting part of the crown;
ii> the dentine surrounding the pulp;
iii> the pulp in the centre, and
iv> the cementum surrounding the embedded part of the dentine.
Form and Function
The shape of a tooth is adapted to its function. The incisors are cutting teeth, with chisel-like crowns. The upper and lower incisors overlap each other like the blades of a pair of scissors. The canines are holding and tearing teeth, with canonical and rugged crowns. Each premolar has two cusps and is, therefore, also called a biscuspid tooth. The molars are grinding teeth, with square crowns, bearing four or five cusps on their crowns.

The incisors, canines and premolars have single roots, with the exception of the first upper premolar which has a bifid root. The upper molars have 3 roots, of which two are lateral and one is medial. The lower molars have only two roots, an anterior and a posterior.
Brushing Technique
Proper brushing takes at least two minutes — that's right, 120 seconds! Most adults do not come close to brushing that long. To get a feel for the time involved, try using a stopwatch. To properly brush your teeth, use short, gentle strokes, paying extra attention to the gumline, hard-to-reach back teeth and areas around fillings, crowns or other restoration. Concentrate on thoroughly cleaning each section as follows:

• Clean the outer surfaces of your upper teeth, then your lower teeth
• Clean the inner surfaces of your upper teeth, then your lower teeth
• Clean the chewing surfaces
• For fresher breath, be sure to brush your tongue, too
5 Golder Rules for Teeth Maintainance
Proper brushing takes at least two minutes — that's right, 120 seconds! Most adults do not come close to brushing that long. To get a feel for the time involved, try using a stopwatch. To properly brush your teeth, use short, gentle strokes, paying extra attention to the gumline, hard-to-reach back teeth and areas around fillings, crowns or other restoration. Concentrate on thoroughly cleaning each section as follows:

• Clean the outer surfaces of your upper teeth, then your lower teeth
• Clean the inner surfaces of your upper teeth, then your lower teeth
• Clean the chewing surfaces
• For fresher breath, be sure to brush your tongue, too