hello, I am currently in school to become a dental hygienist. two year olds are difficult to say the least when it comes to dental care. I would suggest making sure that you attempt to brush his teeth at least once a day. perhaps leave out the toothpaste and try it with just the brush. if this doesn't work there are tooth wipes available that are grape flavored you can try or just try using a wet cloth on your finger to wipe his teeth clean. sometimes kids this age will respond well to those disposable electric toothbrushes, but it all depends on what he likes. You can also try to clean just the bottom teeth and then come back a little later and clean the top so that its not so much of an ordeal all at once. at this age most children will not sit still and open their mouth for a good toothbrushing session, so don't feel like you are doing a bad job.
As far as visiting the dentist, it is good to start you child in the habit of going to the dentist. we recommend around 12 months. pretty much they will do a meet and greet and just peak in at his teeth to make sure there are no signs of disease, abnormalities or early cavities. it is important to detect cavities in children early because in alot of cases they are reversible with a fluoride varnish treatment if they are found in the first stages, before the outer layer of enamel is broken down. It is also very important to get you child familiar with the dentist, so that they will be comfortable when it is time to start with their first dental cleanings. In the mean time you can prevent decay at home by making sure that your child is eating a healthy diet, full of fruits and vegetables and relatively free of sugary foods (beware of high frutose corn syrup as well in seemingly healthy foods), make sure to limit in between meal snacking and drinking milk at bedtime. Also if a sippy cup is given throughout the day for "at will" drinking, it should only be filled with water. Juice and milk can be given at meal times or if the child will finish it at one time. If you have any questions let me know I will be glad to help.
A.