American Dental Education Association (ADEA) is a group that supports the educational mission of its memebers, which are most of the same programs as thos accredited by the American Dental Association. It has several web resources of interest to Pre-Dental students.
Find out what life as a dental student will be like. There is a section specifically for Predentals.
The Dental Admissions Test (DAT) is provided by the American Dental Association (ADA) as part of the admissions process to American Dental Schools. A similar process is offered in Canada.
The ADA website has lots of information about the DAT, including these links:
Use the link below to see a list of all American Dental Association accredited dental programs. In addtion to addresses and other contact information, most have a link to the program, where you can find even more information, such as admission requirements, etc.
The Dental Board of California licenses dentists in California. Their website contains information about the process. It also contains other information about dental practice within the state.
Find out what life as a dental student will be like. There is a specific area for PreDentals.
Cracking the DAT (Dental Admission Test)
McGraw-Hill's DAT by 
Gold Standard Introduction to the DAT, Perceptual Ability Test (PAT) Practice and Full-Length Exam (Dental Admission Test)
Gold Standard DAT Quantitative Reasoning (QR/Math) and Reading Comprehension (RC) [Dental Admission Test]The ADA doesn't endorse any training or review materials. It offers the sample questions in the ADA box on this page. You can also purchase ADA-sponsored practice tests.
There are a number of websites that offer review materials and other information. This is a sampling of some of them.
Making the American Mouth : Dentists and Public Health in the Twentiety Century by 
Cognitive Behavioral Therapy for Dental Phobia and Anxiety by 
Guide to Medical and Dental Schools by