Apparatus is described, the apparatus including an oral surgical guide. The oral surgical guide includes an arch portion configured to be placed on a dental arch of a subject; and an extension portion extending from the arch portion, and shaped to define a guide hole. Other applications are also described.

An apparatus for aligning a dental drill including a guide body having a drill guide through hole including a longitudinal axis, a pair of guide pincer axes orthogonal to and symmetrical about the longitudinal axis and a pair of outer pincer axes orthogonal to and symmetrical about the longitudinal axis, a pair of opposed outer pincers, each outer pincer having an outer engagement protrusion, and each outer pincer is rotatable about a respective one of the pair of outer pincer axes, and a pair of opposed guide pincers, each guide pincer having gear teeth and a guide engagement protrusion, and each guide pincer is rotatable about a respective one of the pair of guide pincer axes. The gear teeth of each guide pincer engage the gear teeth of the other, guide pincer, rotation of one of the pair of guide pincers causes rotation of the other of the pair of guide pincers and the pair of opposed outer pincers rotate independent of each other.

The subject matter of the invention is a three-dimensional moulded body, in particular a milling blank, made of a polymerisable prosthetic material, which is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture toughness of greater than or equal to 1.9 Mpa.Math.m.sup.1/2 and a fracture work of greater than or equal to 900 J/m.sup.2. The milling blank preferably comprises core-shell particles modified by an elastic phase and is optionally based on a content of urethane (meth)acrylate polymerised into the polymer. Moreover, a subject matter of the invention is the use of the milling blanks for the production of at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or of orthodontic appliances and instruments in medical field.

The OPI dental implant may include a body and an attachment member. The body may include an implant core portion and an extension portion. The implant core portion may extend from a first surface of the body to a second surface of the body at a first tapered angle. The extension portion/s may extend from the first surface of the body to the third and fourth surface of the body at a second and third tapered angle. The attachment member may be attached to the first surface of the body and configured to attach a prosthetic to the body.

A bone foundation guide system has a bone foundation guide including a body that is contoured to reversibly affix to a bone segment of a dental implant surgical site. The body is further contoured to guide the cutting of a portion of the bone segment from a dental implant surgical site and alternatively support a dental implant surgical guide. The body is further contoured to support a bone foundation guide prosthesis as an alternative to the dental implant surgical guide. The bone foundation guide prosthesis combines with the body to accommodate the bone segment portion as placed through the body prior to the bone segment portion being removed from the dental implant site through the use of the body.

Methods for accommodating dental implants in treatment planning. Methods may include generating a treatment plan to treat a dentition using a series of dental appliances, where a position of a digital implant in a digital dental model is identified. At least one dental appliance of the series of dental appliances may be created, where the at least one dental appliance may be shaped to implement at least one stage of the treatment plan and include an offset portion that is shaped to provide a space between the offset portion and an actual implant to avoid impingement of the at least one dental appliance on the actual implant and allows for osseointegration of the actual implant.

A three-point locating dental implant locating guide and a three-point locating modeling method are disclosed. The three-point locating dental implant locating guide includes a first plate and a second plate that are pivotally connected. A first locating hole is defined in the first plate. A second locating hole is defined in the second plate. A third locating hole is defined in the junction of the first plate and the second plate. Extending directions of the first locating hole, the second locating hole and the third locating hole are arranged parallel to each other. Through the first locating hole, the second locating hole and the third locating hole, a positioning locating can be guided and implanted respectively, thereby forming a three-point locating as the modeling base for producing a dental mold accurately.

An improved fixing pin support for a dental prosthesis in order to be able to connect the dental prosthesis to a jaw by means of fixing pins which can each be moved through a guide bore in the fixing pin support. The improved fixing pin support has a guide sleeve separate from it which can be temporarily fitted over the fixing pin support so that the guide bore can be formed in the fixing pin support through a guide channel in the guide sleeve, by precise guidance of a drill. After this, the guide sleeve can be removed from the fixing pin support.

An apparatus for correcting a three dimensional space-angle of a drill for a dental hand piece, including: a housing provided on a fixing unit of the dental hand piece; a first sensing unit for measuring an angle of the housing in real-time; a second sensing unit for measuring an angle of a head portion or jaw of the patient in real-time; an operating unit for calculating the three-dimensional space angle of the drill; a setting unit for setting a reference three-dimensional space angle of the drill with respect to the tooth structure as a three-dimensional space angle that the operator is wanting among the three-dimensional space angles of the operating unit; and a display unit for displaying an alert message when the three-dimensional space angle of the operating unit deviates from a predetermined range of the reference three-dimensional space angle.

An implant placement trephine may be used to drill into bone and also to bore a core of bone for purposes of forming an implant channel for implant placement. The trephine generally includes a trephine body with a cutting blade at one end and a spindle extending through the trephine body with a pilot drill at one end extending beyond the cutting blade. The spindle may be adjustably attached to the trephine body to allow the pilot drill to be adjusted relative to the trephine cutting blade. The trephine may be prepackaged with an implant, such as a dental implant, having a corresponding size. The implant placement trephine may be used for different osteotomy applications, for example, to form a channel for dental implants or orthopedic retaining stabilizers. The trephine may also facilitate harvesting bone from the core of bone removed for an autograft at the implant site.