About Welcome to Sunshine Dental Care. Winnie Cheung, DMD, practices a full scope of general and cosmetic dentistry with expertise ranging from porcelain veneers to dental implants, crowns and bridges. Dr. Cheung, seeks to provide the highest level of care in all aspects of general, cosmetic, and family dentistry and can literally redesign your smile. Our office is located at 515 College Highway, Suite 6, Southwick, MA. Call us at Southwick Office Phone Number413-569-1118.