There are Straight and Angulated Screw-Retained Restoration Abutments that vary in diameter from 4.7 to 4.8 mm with collar heights ranging from 0.5 to 5.0 mm. The dental implant-abutment connections are either engaged or non-engaged and utilize the MolecuLock^TM biomechanical seal. The appropriate abutment screw is supplied with each abutment.