A dental multi-colored milling blank having at least two layers (16), a transition zone, where material from both layers is present. In the transition zone, a transition geometry exists that extends three-dimensionally. The transition geometry comprises round surfaces facing towards both directions of extension of the layers.

An oral hygiene device is provided. The oral hygiene device includes a body having a base and first and second opposing sides extending from the base and defining a gap there between. The device may further include a plurality of corresponding notch pairs, wherein each corresponding notch pair has a first notch positioned in the first opposing side and a second notch positioned in the second opposing side. The location of the notch pairs may coincide with a user's mouth and in particular to the position of the user's teeth within the mouth. As such, a fibrous material, such as floss, may be coupled to the device such that the material spans the gap between at least one of the corresponding notch pairs so that the material may be inserted into the spaces between the user's teeth when the device is placed into the user's mouth.

In some embodiments, a periodontal instrument comprises an end including a functional shank and a working end located distal to the functional shank, and a handle configured to extend proximally from the end, the handle sized and configured to be received by a user's hand. The functional shank may include a colored portion, and the colored portion may define a terminal shank of the functional shank. In some embodiments, the colored portion is configured to aid the user in identifying the terminal shank.

An abutment is provided with a screw access hole and a slot in its sidewall adapted to allow a driver to access a screw in the screw access hole at an angle relative to a longitudinal axis of the screw. The abutment may include a screw seat and may be connected to an implant via a screw in the screw seat. A prosthesis, which may include a driver access channel that has a diameter less than the outer diameter of the drive portion of the screw, may be placed over the abutment. Methods of making a dental prosthesis and methods of attaching and removing the dental prosthesis from the implant are also disclosed.

The present invention is a device for simulating lower jaw activity. The device can be utilized in cooperation with an artificial intelligent lower jaw occlusion and attitude recording device. The device comprises a base, an upper jaw tooth mold, an opening and closing rotating platform, a left and right rotating platform, a horizontal rotating platform, a front-back shifting platform and a lower jaw tooth mold. The present invention makes it possible to make lower jaw moving forward and backward, opening and closing (pitch), tilting left and right (yaw), in place rotating (yaw), and etc. Then, according to the data obtained by the artificial intelligent lower jaw occlusion and attitude recording device, the lower jaw activities concluded through the reverse engineering by means of the present invention facilitates production of accurate intra-oral device, and can be applied to unknown complex actions in dental medical research, such as occlusion, bruxism, swallowing, sounding, and etc.

At least one individually sealed dental composition that includes a layer of a thermoplastic film; a covering film that is a heat sealable or pressure sealable adhesive liner that covers a dental cement composition; a seal around an individual use dosage of the dental cement composition wherein the extrudable dental cement composition is extrudable through a die. The dental cement composition typically has a textured surface thereon and the at least one dry, powdered hydrophilic polymeric substance is engaged with and dispersed on the textured surface of the dental cement composition.

Dental appliances, materials, and methods of forming such appliances and materials for improved laser marking are provided herein including the use of textured and/or roughened surfaces to enhance laser marking.

The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.

An exposure apparatus (100) for illuminating a dental object (101), including a chamber (103) for receiving the dental object (101); and a radiation source (105) for emitting radiation having a wavelength shorter than 350 nm into the chamber (103).

An oven (100) for heating a dental object (101), having a chamber (103) for receiving the dental object (101); a radiation source (105) for emitting radiation having a wavelength smaller than 350 nm into the chamber (103); and heating means (113) for heating the dental object (101) in the chamber (103).