Although it is not necessary in most states to take the Certified Dental Assistant exam, it may give you an edge on the competition. The CDA is a 300-question exam administered by the Dental Assisting National Board. In some states, passing this exam qualifies you to do more advanced work. This obviously makes you more valuable to a prospective employer. Unfortunately, it is difficult to give specific information on the CDA, since the regulations vary from state to state. You will want to research your state's specifications for this exam.
In conclusion, you want to think about the following requirements before picking a dental assisting program:
     * Dental Assistance Theory and Science
     * Real World Experience
     * Soft Skills in Oral Care Applications
     * Specialization in Dental Assisting
     * Preparation for the CDA Exam (state-dependent)
After considering these factors, you will have a much better idea of what your training experience will entail. You will also be able to tell how well the school matches up with your specific career plans. Good luck preparing for your new and exciting career!