Abstract: A dental implant having a central longitudinal axis at a bone-entry portion thereof is provided. The dental implant includes a threaded elongate fixture, at the bone-entry portion of the dental implant, shaped and sized for insertion into a bone of a subject, and a non-threaded emergence collar coronal to the fixture and smoother than the fixture. The emergence collar has a non-circular cross-section at least in a plane that is at least 1 millimeter coronal to the fixture and that is perpendicular to the longitudinal axis, the emergence collar and the fixture being formed of, and adjacently disposed along, a single piece of metal. Other applications are also described.

Abstract: Apparatus is provided for use with a dental handpiece, an oral surgical guide, and a bushing disposed in the oral surgical guide. The apparatus includes a drill bit having, a shank and a rigid guide-sleeve. A proximal end of the guide-sleeve couples to the dental handpiece, such that a lumen of the guide-sleeve and a drill bit coupled to the dental handpiece are coaxial along a central longitudinal axis of the drill bit. An inner diameter of the guide-sleeve is 0.03-0.06 mm greater than a diameter of the shank. The distal end of the guide-sleeve is slidably couplable with the bushing, such that upon the guide-sleeve being advanced into the bushing the dental handpiece is forced to align the axis of the drill bit to be coaxial with a central longitudinal axis of the bushing. Other applications are also described.

Abstract: A guide-sleeve is couplable to an oral surgical guide at a fixed rotational orientation, height, and angle with respect to oral anatomy. An implant delivery device, couplable to a dental implant, drives the implant into tissue of the subject by rotation of the delivery device about its longitudinal axis until the delivery device lockingly engages the guide-sleeve. When the implant lockingly engages the guide-sleeve, the implant is disposed in the tissue at a fixed rotational orientation, depth, and angle with respect to the oral anatomy, and any further advancement and rotation of the dental implant with respect to the tissue is prevented. Other embodiments are also described.

Abstract: Apparatus is provided for use with a dental handpiece, an oral surgical guide, and a bushing disposed in the oral surgical guide. The apparatus includes a drill bit having, a shank and a rigid guide-sleeve. A proximal end of the guide-sleeve couples to the dental handpiece, such that a lumen of the guide-sleeve and a drill bit coupled to the dental handpiece are coaxial along a central longitudinal axis of the drill bit. An inner diameter of the guide-sleeve is 0.03-0.06 mm greater than a diameter of the shank. The distal end of the guide-sleeve is slidably couplable with the bushing, such that upon the guide-sleeve being advanced into the bushing the dental handpiece is forced to align the axis of the drill bit to be coaxial with a central longitudinal axis of the bushing. Other applications are also described.

Abstract: A guide-sleeve is couplable to an oral surgical guide at a fixed rotational orientation, height, and angle with respect to oral anatomy. An implant delivery device, couplable to a dental implant, drives the implant into tissue of the subject by rotation of the delivery device about its longitudinal axis until the delivery device lockingly engages the guide-sleeve. When the implant lockingly engages the guide-sleeve, the implant is disposed in the tissue at a fixed rotational orientation, depth, and angle with respect to the oral anatomy, and any further advancement and rotation of the dental implant with respect to the tissue is prevented. Other embodiments are also described.

Abstract: Apparatus is provided for use with a dental handpiece, a drill bit, an oral surgical guide, and a bushing disposed in the oral surgical guide. The apparatus includes a rigid guide-sleeve having a proximal end and a distal end. The proximal end of the guide-sleeve is removably couplable to a distal end of the dental handpiece, such that a distal outer surface of the guide-sleeve and a drill bit coupled to the distal end of the dental handpiece are coaxial along a central longitudinal axis of the drill bit. The distal end of the guide-sleeve is sized and shaped to be slidably couplable with the bushing, such that upon the guide-sleeve being advanced into the bushing the dental handpiece is forced to align the central longitudinal axis of the drill bit to be coaxial with a central longitudinal axis of the bushing.

Abstract: A dental implant having a central longitudinal axis at a bone-entry portion thereof is provided. The dental implant includes a threaded elongate fixture, at the bone-entry portion of the dental implant, shaped and sized for insertion into a bone of a subject, and a non-threaded emergence collar coronal to the fixture and smoother than the fixture. The emergence collar has a non-circular cross-section at least in a plane that is at least 1 millimeter coronal to the fixture and that is perpendicular to the longitudinal axis, the emergence collar and the fixture being formed of, and adjacently disposed along, a single piece of metal. Other applications are also described.

Abstract: A dental implant is provided having a longitudinal axis, and comprising an elongate body portion at an apical portion of the implant and a neck portion at a coronal portion of the implant. A first helical thread profile is around a first portion of the elongate body, at the apical portion. A second helical thread profile that is different from the first helical thread profile, is around a second portion of the elongate body that is between the first portion and the neck portion. The implant further comprises a third helical thread profile that is around the neck portion and that is different from both the first and second helical thread profiles. Other applications are also described.