Abstract: An orthodontic appliance includes a body portion for effecting an orthodontic treatment and a base portion affixed to the body portion. The base portion includes a surface defining a plurality of trenches. At least one trench is formed at an acute angle to a gingival surface of the base portion.

Abstract: Techniques are described for fabricating bite opening devices (BODs) that are customized to a patient's teeth and that can be accurately and strongly attached. The techniques include designing, and producing via additive fabrication, a bonding tray and a BOD that are contoured to match the patient's tooth anatomy. The BOD may be inserted into a cavity in the bonding tray, wherein the surface of the BOD and the bonding tray may match the tooth anatomy so that the tray and BOD can be guided to the proper location in the mouth, and so that the surface of the BOD matches the surface to which it will be attached. An adhesive may be applied to the surface of the BOD and cured to attach the BOD to the tooth. As a result, proper BOD placement is provided with a desired adhesion between the BOD and the tooth.

Abstract: The techniques described herein relate to exemplary indirect bonding trays for orthodontic appliances. An example indirect bonding tray comprises an occlusal base having an outer perimeter and defining a first impression conforming to a first occlusal tooth surface and a second impression conforming to at least a portion of a second occlusal tooth surface. The example indirect bonding tray further comprises a buccal wall defining a well to releasably engage an orthodontic appliance, the buccal wall extending outwards beyond the outer perimeter of the occlusal base, wherein: the buccal wall and the well are in a first region of the indirect bonding tray associated with the first impression, the first region is adjacent to a second region of the indirect bonding tray associated with the second impression, and an outer wall of the second region extends to the outer perimeter of the occlusal base.

Abstract: The techniques described herein relate to exemplary pontics with archwire connections. An example appliance for spanning a mesiodistal width of a missing tooth includes a pontic portion at least partially coated with a material that is softer than tooth enamel, an archwire connection portion attached to a first side of the pontic portion, and at least one stabilizer affixed to a second side of the pontic portion, the second side opposite the first side.

Abstract: Embodiments relate to the methodology of direct manufacture of a customized labial/lingual orthodontic tube by using a ceramic slurry-based additive manufacturing (AM) technology. For example, a method of manufacturing customized ceramic labial/lingual orthodontic tubes by additive manufacturing may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three-dimensional computer-assisted design (3D CAD) model of the patient's teeth, and saving the 3D CAD model, designing a virtual 3D CAD tube structure model for a single labial or lingual tube structure based upon said 3D CAD model, importing data related to the 3D CAD tube structure model into an additive manufacturing machine, and directly producing the tube with the additive manufacturing machine by layer manufacturing from an inorganic material including at least one of a ceramic, a polymer-derived ceramic, and a polymer-derived metal.

Abstract: Embodiments relate to the methodology of direct manufacture of a customized labial/lingual orthodontic tube by using a ceramic slurry-based additive manufacturing (AM) technology. For example, a method of manufacturing customized ceramic labial/lingual orthodontic tubes by additive manufacturing may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three-dimensional computer-assisted design (3D CAD) model of the patient's teeth, and saving the 3D CAD model, designing a virtual 3D CAD tube structure model for a single labial or lingual tube structure based upon said 3D CAD model, importing data related to the 3D CAD tube structure model into an additive manufacturing machine, and directly producing the tube with the additive manufacturing machine by layer manufacturing from an inorganic material including at least one of a ceramic, a polymer-derived ceramic, and a polymer-derived metal.

Abstract: Embodiments relate to the methodology of direct manufacture of a customized labial/lingual orthodontic tube by using a ceramic slurry-based additive manufacturing (AM) technology. For example, a method of manufacturing customized ceramic labial/lingual orthodontic tubes by additive manufacturing may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three-dimensional computer-assisted design (3D CAD) model of the patient's teeth, and saving the 3D CAD model, designing a virtual 3D CAD tube structure model for a single labial or lingual tube structure based upon said 3D CAD model, importing data related to the 3D CAD tube structure model into an additive manufacturing machine, and directly producing the tube with the additive manufacturing machine by layer manufacturing from an inorganic material including at least one of a ceramic, a polymer-derived ceramic, and a polymer-derived metal.

Abstract: Embodiments may provide improved techniques for creating custom lingual or labial ceramic orthodontic brackets, and which provides the capability for in-office fabrication of such brackets. For example, a method of manufacturing customized ceramic labial/lingual orthodontic brackets by ceramic slurry-based AM may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model on a computer, designing a 3D CAD bracket structure model for a single labial or lingual bracket structure, importing data related to the 3D CAD bracket structure model into a ceramic slurry-based AM machine, directly producing the bracket (green part) in the ceramic slurry-based AM machine by layer manufacturing, and processing the brackets in a sintering and debinding oven prior to direct use.

Abstract: Embodiments may provide Bite Opening Devices (BODs) that are quicker and easier to place and provide improved accuracy. For example, a method may comprise using a computer system to perform: receiving data relating to teeth and jaws of a person, identifying a hinge axis of the jaw in three dimensional space using the data relating to teeth and jaws of a person, rotating the jaw to provide a desired clearance of the teeth, placing at least one Bite Opening Device on the teeth so as to provide the desired clearance of the teeth, and generating data defining a bonding tray to fit over the teeth, the bonding tray including a void corresponding to each Bite Opening Device, the generated data defining the bonding tray to be used for manufacturing the bonding tray using additive manufacturing.