Bien Air Chiropro PLUS+3rd Gen set with Micro-Series CA 20:1 L Simplicity. The cornerstone of the new range of implant and oral surgery motors developed by Bien-Air Dental. General dental practitioner or experienced surgeon, are you seeking a fast, simple and efficient solution for your implant dentistry procedures? Look no further than the Chiropro. Your perfect solution for precise and smooth placement of implants.