Philadelphia Dentist. Dr. Oscar Goren DMD provides Dental Hygiene and Periodontal Health, gum disease, gum disease treatment, periodontal surgery, preventive oral health, oral hygiene, gum care to patients suffering from gingivitis, bad breath, plaque in Northeast Philadelphia, 19152, 19115, 19114. Northeast Philadelphia Dentist providing Dental Hygiene and Periodontal Health in Philadelphia, Pennsylvania.