It is first important to find a dentist with whom you feel comfortable. Once you've found this "friendly" dentist, he should be asked to verify your teeth before problems appear.
During your first visit to the dentist it will conduct a review of your medical history. On the occasion of visits be sure to inform it of any changes in your health. Most of the time your visit will be a check that, if regular (ideally every 6 months), will help you keep your teeth clean, extend their lives and avoid the appearance of painful phenomena.
A good cleaning
The inspections include almost always a good cleaning. The practitioner "scratch", with special instruments, above and below the gingival border to eliminate the accumulated plaque and tartar which can cause gum disease, cavities, bad breath and other problems. Your dentist can also polish and clean your teeth with dental floss.
Full review
Your dentist will make a thorough examination of your teeth, gums and your mouth for signs of disease or other ailments. Its purpose is to help you maintain good dental health and avoid complications by addressing the problems once they start.
Radiography 
Depending on your age, sickness and your symptoms, your dentist may take one or radiography (s). X-rays can make the diagnosis of problems that otherwise would remain unknown, such as bone lesions, the teeth, abscesses, tumors and cysts or interdentally cavities. A modern dental office now uses devices that emit almost no radiation. As a precaution, you should always wear a lead apron when you made X-ray. If you are pregnant, inform your dentist who should take X-ray in an emergency. Your dentist will ask you panoramic radiography This type of shot gives a complete picture of your upper and lower jaw and assistance to make a better diagnosis of all your teeth.
What should be the interval between visits?
If your teeth and gums are healthy, you should consult your dentist every six months. If treatment is needed, for example, treat cavities, extract a wisdom tooth or repair a crown, you must make an appointment before leaving office. And do not forget to ask your dentist any questions - This is your opportunity to have all the answers!