FIELD: medicine. SUBSTANCE: thread coil or oriented macroroughness for bone implants, in particular for threaded dental implants, having two sides, superior radius R formed near the apex and formed by intersecting these two lateral sides and inferior radius r formed in the lower part of groove between two adjacent coils or roughnesses. The lateral sides form an angle v to the plane running in perpendicular to the coil or roughness cross-section and in perpendicular to the implant surface. The profile has height of D. Coil or roughness dimensions have the following limits according to the present invention. R is greater than 0.4 x D when 10°≤ v ≤35° 35°≤ v ≤55° being the case, R is greater than 0.2 x D. EFFECT: stresses in bone reduced to minimum. 20 cl, 7 dwg, 13 tbl
