Abstract: Orthodontic expander including a left body)and a right body provided with through holes oriented along a pre-defined expansion direction, a pair of guides inserted in the holes, and elastic thrust elements preloaded and acting between the bodies to provide a thrust directed in the expansion direction in the orientation of moving away of the bodies. The guides and the bodies have respective surfaces engaging with each other to limit the expansion of the elastic elements, limiting the sliding to a maximum predetermined sliding value such that the preloading of the thrust means is greater than zero at this maximum predetermined sliding value such that the thrust exercised by the elastic elements is greater than zero at the maximum predetermined sliding value.

Abstract: A device for the mandibular advancement, a process for making an appliance for the mandibular advancement and the appliance realized. The device includes a first engagement element associable with the lower dental arch or mandible and a second engagement element associable with the upper dental arch or maxilla. The engagement elements are provided with a first inclined engagement surface and a second inclined engagement surface for determining said mandibular advancement. The first engagement element includes a core covered by a covering body provided with a pocket adapted to the housing of the core, the second engagement element includes an orthodontic screw adapted to determine the displacement of the second inclined plane, the core having an inclined portion destined to define, in cooperation with the respective covering, the first inclined engagement surface.

Abstract: Orthodontic expander including a left body)and a right body provided with through holes oriented along a pre-defined expansion direction, a pair of guides inserted in the holes, and elastic thrust elements preloaded and acting between the bodies to provide a thrust directed in the expansion direction in the orientation of moving away of the bodies. The guides and the bodies have respective surfaces engaging with each other to limit the expansion of the elastic elements, limiting the sliding to a maximum predetermined sliding value such that the preloading of the thrust means is greater than zero at this maximum predetermined sliding value such that the thrust exercised by the elastic elements is greater than zero at the maximum predetermined sliding value.

Abstract: Tool for handling palatal expanders, including two opposed jaws adapted to clamp at least one body of a palatal expander, a handle, and actuation means adapted to move said jaws between a clamping position on said at least one body and respectively a release position, said jaws being bound elastically to one another and are normally spaced from each other, and said actuation means comprising a slider slidably mounted on the outer surfaces of the jaws, the slider being provided with a part adapted to interact with said outer surfaces so as to compress the jaws by pushing them toward each other when it is made to slide along a first direction and free them when it is made to slide along a second direction, said actuation means being adapted to firmly but reversibly lock the jaws in said clamping position.

Abstract: An orthodontic screw and a set of elements for forming an orthodontic or orthopedic appliance for dentistry, as well as a method for making an orthodontic or orthopedic appliance for dentistry. The orthodontic screw includes two bodies connected by positioning elements designed to allow the distance between the bodies to be adjusted; the bodies have a seat adapted to receive a portion of a connection structure associable with the orthodontic screw for its connection to the teeth of a dental arch; the seat has a groove formed on an external surface of the bodies, so that said portion of said connection structure can be inserted in the seat through a displacement orthogonal to the same seat.

Abstract: A measuring instrument for orthodontic appliances including a body with a handle and a rectilinear head oriented orthogonally to the handle; an appendix protrudes from a distal edge of the head and it is orthogonal to the head, that is, the appendix is oriented parallel to the handle, and is formed by a base having a predetermined width from which emerges a pin having a length which is also predetermined; the head is provided with a millimeter scale on at least one side of the appendix; the width of the base is a value selected among a plurality of predetermined values and is equal to the distance between the bodies of a palatal expander in closed configuration.

Abstract: Self-activated orthodontic expander including a left frame and a right frame, where the left frame and right frame include, respectively, a left body and a right body, each having anchoring means for anchoring them to the teeth of a dental arch. The bodies have through holes oriented in a predetermined expansion direction, where the frames are slidably mounted along the expansion direction by guides inserted into the holes of the bodies. Elastic elements are arranged and acting between the frames. The guides are further constrained with each other by a bridge oriented orthogonally to the same guides and adapted to prevent the reciprocal movement of the guides.

Abstract: A fan screw for the expansion of the upper jaw, including two bodies (1, 2) connected by at least one driving screw (4; 7) and placed on opposite sides with respect to a sagittal plane (x-x), the longitudinal axis (v-v; k-k) of the at least one expansion screw (4; 7) being perpendicular to the plane (x-x), each of the bodies (1, 2) having a lingual side (L1, L2) and an opposite upper side and being provided with a structure for anchoring it to several teeth of a dental arch destined to be expanded. The longitudinal axis (v-v; k-k) of the at least one driving screw (4; 7) is at a predetermined distance (h) from the lingual sides (L1, L2) of bodies (1, 2), the distance (h) being measured along a lingual direction (L) parallel to the plane (x-x), such that the distance between the axis (v-v) of the at least one driving screw (4; 7) and the upper sides of bodies (1, 2) is greater than the distance between the upper and the lower sides of bodies (1, 2).

Abstract: A device for the mandibular advancement, a process for making an appliance for the mandibular advancement and the appliance realized. The device includes a first engagement element associable with the lower dental arch or mandible and a second engagement element associable with the upper dental arch or maxilla. The engagement elements are provided with a first inclined engagement surface and a second inclined engagement surface for determining said mandibular advancement. The first engagement element includes a core covered by a covering body provided with a pocket adapted to the housing of the core, the second engagement element includes an orthodontic screw adapted to determine the displacement of the second inclined plane, the core having an inclined portion destined to define, in cooperation with the respective covering, the first inclined engagement surface.

Abstract: A surgical guide system for dental implantology has a plate (10) provided with a guide sleeve (2) delimiting a through hole with an axis oriented to a predetermined direction. A drill (4) for osteotomy has a spindle connected to a handpiece with drilling portion (41), the drill (4) being for association with the guide sleeve (2) during osteotomy. The diameter (d41) of the drilling head portion (41) is larger than the inner diameter (d2) of the guide sleeve (2) and the spindle is of smaller diameter, such that the association of the drill (4) to any of the guide sleeves (2) can be performed only by inserting the spindle through a gingival side of the sleeves. Upon association of the drill with the sleeve, the drilling head (41) protrudes from the gingival side (2G) thereof. The surgical guide has a void (100) accommodating the drilling head (41) of the drill.

Abstract: Expansion screw for orthodontics, comprising at least one stem (1) with at least a threaded portion (10) extending along the longitudinal extension of the stem (1), at least one receiving body (3) adapted for receiving said threaded portion (10) and provided with a complementarily threaded hole allowing said threaded portion (10) to be screwed therein, guide means (2) allowing said at least one receiving body (3) to be moved, actuation means (11, 12) for actuating said stem (1). The hole (31) of said at least one receiving body (3) has a longitudinal extension substantially corresponding to that of the threaded portion (10) of said at least one stem (1). The receiving body (3) is a technopolymer receiving body and the stem (1) is embedded in the technopolymer of the receiving body when the expansion screw (100) is made.

Abstract: A device for mandibular advancement, including a tube and a telescopic rod associated with the tube, in which the tube and the telescopic rod can be associated to the teeth of the upper and lower arches, in which the telescopic rod includes a threaded pin which engages a female thread of a hollow element slidably positioned in said tube, and the hollow element includes a maneuvering portion external to the tube; the device includes a friction element, arranged between the inner walls of the maneuvering portion and the thread of the pin and having an outer surface which is complementary to the inner walls of said maneuvering portion and a threaded internal cavity which copies the thread of the pin.

Abstract: Self-activated orthodontic expander including a left frame and a right frame, where the left frame and right frame include, respectively, a left body and a right body, each having anchoring element for anchoring them to the teeth of a dental arch. The bodies have through holes oriented in a predetermined expansion direction, where the frames are slidably mounted along the expansion direction by guides inserted into the holes of the bodies. Elastic elements are arranged and acting between the frames. The guides are further constrained with each other by a bridge oriented orthogonally to the same guides and adapted to prevent the reciprocal movement of the guides.

Abstract: Measuring instrument for orthodontic appliances comprising a body with a handle and a rectilinear head oriented orthogonally to the handle, wherein from a distal edge of the head protrudes an appendix, wherein said appendix is orthogonal to the head, that is, the appendix is oriented parallel to the handle, and is formed by a base having a predetermined width from which emerges a pin having a length which is also predetermined; the head is provided with a millimeter scale on at least one side of the appendix; the width of the base is a value selected among a plurality of predetermined values and is equal to the distance between the bodies of a palatal expander in closed configuration.

Abstract: Expansion screw for orthodontic appliances, including at least one stem (1) with at least a threaded portion (10) extending along the longitudinal extension of the stem (1), at least one receiving body (3) for receiving the threaded portion (10) provided with a receiving hole complementarily shaped with respect to the threaded portion (10) so as to allow its screwing, guide structure (2) for guiding the at least one receiving body (3), driving mechanism (11, 12) for driving the stem (1), and including a positioning tab (6) composed of multiple parts (60, 61) associated with each other to support the expansion screw (100) when the orthodontic appliance is made, the tab (6) being provided with at least an appendix (62) that can be stably inserted into a cavity (12) exhibited by the expansion screw (100).

Abstract: Orthodontic expander including a left frame (T1) and a right frame (T2). The left frame (T1) and right frame (T2) respectively include a left body (1) and a right body (2) provided with structure for their anchorage to the teeth of a dental arch. The bodies (1.2) have through holes (10) oriented in an expansion direction (d). The frames (T1, T2) are slidingly mounted along the expansion direction (d) by guides (4) inserted in the holes (10) of the bodies (1.2). The distance (h) between the bodies (1, 2) is adjusted by a screw (5) screwed into the body (2) of one of the frames. The screw (5) has an operating head (51) positioned between the bodies (1.2) Elastic plates are positioned and acting between the frames (T1, T2) and can be activated or reactivated by acting on the screw (5) which compresses them to activate or reactivate them when desired.

Abstract: Tool for handling palatal expanders, including two opposed jaws adapted to clamp at least one body of a palatal expander, a handle, and actuation means adapted to move said jaws between a clamping position on said at least one body and respectively a release position, said jaws being bound elastically to one another and are normally spaced from each other, and said actuation means comprising a slider slidably mounted on the outer surfaces of the jaws, the slider being provided with a part adapted to interact with said outer surfaces so as to compress the jaws by pushing them toward each other when it is made to slide along a first direction and free them when it is made to slide along a second direction, said actuation means being adapted to firmly but reversibly lock the jaws in said clamping position.

Abstract: A surgical guide system for dental implantology has a plate (10) provided with a guide sleeve (2) delimiting a through hole with an axis oriented to a predetermined direction. A drill (4) for osteotomy has a spindle connected to a handpiece with drilling portion (41), the drill (4) being for association with the guide sleeve (2) during osteotomy. The diameter (d41) of the drilling head portion (41) is larger than the inner diameter (d2) of the guide sleeve (2) and the spindle is of smaller diameter, such that the association of the drill (4) to any of the guide sleeves (2) can be performed only by inserting the spindle through a gingival side of the sleeves. Upon association of the drill with the sleeve, the drilling head (41) protrudes from the gingival side (2G) thereof. The surgical guide has a void (100) accommodating the drilling head (41) of the drill.

Abstract: An abutment (2) connects with a fixture (1) by a Morse-taper type coupling, with the installation of a truncated-cone shank (21) of the abutment (2) into a corresponding cavity (11) exhibited by the fixture (1). The abutment (2) is provided with an appendix having a polygonal cross-section (22), and is positioned below the shank (21). The appendix is fitted into a corresponding impression (12) provided in the bottom of the cavity (11) of fixture (1). The abutment is also provided, on the side opposite to the appendix (22), with respect to the shank (21), with a portion (20, 24) intended for supporting a dental prosthesis (D). The appendix (22) can be rotated about its longitudinal axis, relative to the shank (21) of the abutment (2).

Abstract: An orthodontic bracket including a body (1) having a mesiodistal slot (10), a base (11), and a plurality of tie wings (12, 120) mainly developed along an occlusal-gingival direction. The tie wings are provided two-by-two on opposite sides in relation to the slot (10) and partially emerging over a labial side (L) of the body (1). The slot (10) is apt to receive an archwire (2). The tie wings (12, 120) protrude externally from the body (1) and towards the base (11), feature a curved surface (121) whose concavity is turned towards the same base (1) and constitute a support for an element (3) apt to prevent the archwire (2) from coming out of the slot (10). The element (3) features a planar portion intended to slide above, and parallel to, the labial side (L) of the body (1) and a flexible and elastic arm (33) having a portion (34) which is securable to the surface (121) of two tie wings (12) resulting on the same side in relation to the slot (10).