Dr Gentry completing a Biomet 3i implant of a lower left first molar. July 18, 2015dental implantsarlington, dental implant, dental implants, dentist, Dr Gentry, northern virginia, Philip Gentry, virginiaDoctorGentry Dental implant. Porcelain crown, gold screw, custom abutment. Custom abutment placed over implant with the gold screw. X-ray Porcelain crown cemented over the custom abutment.