January 31, 2008
Xylitol and oral health
Last weekend,I spent 2 full days at the Istana Hotel in downtown Kuala Lumpur,attending a dental conference along with several hundred other dental professionals.It was the 15th FDI-MDA Scientific Convention and Exhibition.
I must say that the lecture topics and the speakers were pretty good.I personally learnt quite a bit from the lectures.The organising commitee did a commendable job in this area.
One of the topics covered over 3 lectures was regarding caries(tooth decay) management.We are moving into the age of minimally invasive dentistry(MID) and this terminology is actually very well accepted by the general public.It gives a very non-threatening feel to your dental treatment.
We are talking a lot about prevention and arresting dental diseases in its early stage.
One of the substances that is relatively unknown but has great potential for use in preventive dentistry,is xylitol.
Xylitol is a natural sweetener.A natural sweetener (as opposed to artificial sweeteners which can be purchased to be used as a sugar substitute) is found in fruits and vegetables.It is mainly harvested from the bark of a tree found in Scandinavia.Well,you can imagine that it is not something you can find sold off the racks of your local Tesco or any of your neighourhood supermarket.Yes,it is a rather expensive substance to produce.And the nearest thing you can get hold of that contains xylitol(in small amounts) is actually some brands of sugar-free chewing gum.
So what’s the big deal with xylitol? Studies done on it has shown that xylitol has protective action against tooth decay.It is the only sweetener that does not produce acid in oral plaque(which contains decay causing bacteria).Xylitlo also prevents bacteria from sticking to the tooth surface ,prevents growth and metablolism of the these bacteria.Basically it has a suppressive action against decay-causing bacteria in the mouth.On top of all that,it has also been proven to reverse early processes of tooth decay on enamel surfaces by reversing the loss of minerals from our tooth surface due to acid activity.
Based on these infromation,dentists are beginning to prescribe xylitol-containing chewing gum to some patients who show early signs of loss of mineral form their enamel surfaces,and to those who are relatively more prone to tooth decay.
Chewing on gum will increase salivary flow,and that acts as a buffer to the acidity as well.Therefore,the action of xylitol is enhanced. However,they are not to chew a stick of gum for more than 10 minutes because our salivary glands stop producing saliva after 10 minutes of stimulation.

My dear friends,Dr Amy and Dr Amy and I posing for a photo.
