Dr. Pollowitz has a great facility, his assitants are very kind, unfourtunately, Dr. Pollowitz is unprofessional, he does not care about customer safisfaction and he does not accept patient's opinion on his poor performance. I was not happy with the crown he replaced which shows the metal part when I smile. When I went back to complain, he said he would replace the crown only if I sign a paper accepting full responsability for future complications. I have already visited other dentists in the DC area and they told me Dr. Pollowitz made a unethical diagnosis about my tooth's situation just to avoid re-doing his poor job.