Patrick Entress Deforno DMD 3105 C G Zinn Rd Thorndale, Pennsylvania, 19372 Phone: 610-384-2541 Dentist Category: General-Family Dentistry Profile Let this business know you found them on Main Line Today's Online Directories. Locations Thorndale 3105 C G Zinn Rd Thorndale, Pennsylvania 19372 Claim/Edit Listing