Taking care of your teeth properly can be very expensive. Because of this, many people do not go for regular dental check-ups. Later, they will find out that it is even much more expensive to fix any problem that resulted from improper care. Bad dental hygiene can lead to other health problems such as gum disease, cavities, and other more severe illnesses. But with some dental clinics offering free dental care, many of us can have healthier and whiter teeth without any worry about the costs. Invisalign services and other orthodontic care is covered in some areas too.