*Riverside & Sun City Dentist - Negeen D. Zareh, DMD - Family and Cosmetic Dentistry* When you visit our office, your smile is our top priority. Our entire team is dedicated to providing you with the personalized, gentle care that you deserve. Part of our commitment to serving our patients includes providing information that helps them to make more informed decisions about their oral health needs. This website is a resource we hope you ll find both useful and interesting.. Quality Dentistry with a Gentle Touch for All Ages-Nitrous Oxide Sedation Available-Rembrandt One-Hour Whitening Available-Intraoral Camera