- Thorndale Dental Associates 3105 C. G. Zinn Road Phone: (610) 384-2541 Thorndale, Pa 19372 Fax: (610) 384-8638 The mission of Thorndale Dental Associates, proud of our reputation for excellence, is to provide optimal oral health services, contributing toward total well being, through a partnership with each patient in an atmosphere of compassion, trust, and dignity, with quality comprehensive ...www.thorndaledental.com