Dr. Zdravko Grnja: Excellence in Dental Medicine Looking for a top-tier dentist? Dr. Zdravko Grnja and Implantološki centar Smile Bjelovar resolve even the most complex cases painlessly using advanced 3D technology. Blog · Implantološki centar Smile · Trg Stanka Vraza 1, 43000 Bjelovar · +385 95 873 5523