WALTHAM, Mass.--(BUSINESS WIRE)--Astra Tech, leader and provider of comprehensive solutions for dental implant therapy, is pleased to announce the availability of Atlantis™ abutments for Straumann Bone Level 3.3, 4.1, and 4.8 diameter implants . Material options for this new interface include titanium and gold-shaded titanium (Atlantis GoldHue™ abutment) for the more esthetically challenging situations.