Instruments for lateral sinus lift S1 ;(REF 05542900) Diamond-coated instrument for preparation of a bone flap for lateral sinus floor augmentation and for crown edge extensions.S2 ;(REF 05534700) Instrument with diamond-coated ball for preparation of a bone flap for lateral sinus floor augmentation and for crown edge extensions.S3 ;(REF 05508200) Instrument for gentle detachment of the Schneiderian membrane from the bone. The coolant film protects the Schneiderian membrane by means of three coolant openings.S4 ;(REF 05542300) Instrument with rounded edges for atraumatic detachment of the Schneiderian membrane.S5 ;(REF 05542800) Instrument with rounded edges for atraumatic detachment of the Schneiderian membrane.