Abstract:
A snap-on snap-off drill stop device for boring into a tooth and or in bone. The stop device that impedes insertion of the bore device into the tooth or bone tissue beyond predetermined depths at pre-selected stages of a drilling process by simplifying the tedious process of exchanging drill bits and drill stops (111) for the ultimate size and depth bore.
Abstract:
Dental etchant compositions, processes for making the same, and methods for using the dental etchant compositions are disclosed. The dental etchant compositions include at least one acid and one or more dentin collagen cross-linking agents. The methods for using the dental etchant compositions may include contacting a mammal's tooth with a dental etchant composition that includes one or more acids and one or more dentin collagen cross-linking agents.
Abstract:
A visible coding of components of an articulator apparatus that mount maxillary and mandible casts indicates the relative correspondence between post-treatment goals and the present locations of a person's teeth and jaws. From another aspect, the visible coding indicates at least a direction, and preferably, a direction and a distance, which a person's teeth and/or jaws must be moved to achieve the goals.
Abstract:
An orthodontic bracket system (100) including a plurality of interchangeable ligation covers (102, 102') so as to allow the patient and practitioner to create a desired aesthetic look. The inventive orthodontic bracket system (100) includes a bracket base (101), at least one arch wire slot (106) formed in the bracket base (101) adapted to receive an arch wire therein, a first interchangeable ligation cover (102) that when realisably assembled to the bracket base (101) can be selectively moved relative to the bracket base (101) between an open non-ligating position relative to the arch wire slot (106) and a closed, ligating position relative to the arch wire slot (106), and a second interchangeable ligation cover (102') of a different color and/or formed of a different material relative to the first cover (102). The interchangeable ligation covers (102, 102') can be removed and replaced with another cover of a different color and/or different material to create a different aesthetic appearance.
Abstract:
A handle for a medical instrument includes an elongate structure with a longitudinal axis, a central portion, and at least one end portion configured to receive a working element. The end portion includes a rigid core and a sleeve configured to fit over the rigid core, and the sleeve includes a rounded gripping surface having a substantially circular cross-sectional configuration and an anti-roll structure having a substantially non-circular cross-sectional configuration. The sleeve may further include a groove extending around its periphery and configured to receive a replaceable identifying element, such as a color-coded band or o-ring. The sleeve may also include a slot that intersects the groove and is configured to receive the tip of a tool used to remove the replaceable identifying element from the groove.
Abstract:
The invention relates to methods and devices for producing denture elements, whereby surface data of a remaining dental area are digitally acquired, at least one molded part, especially a denture element for the remaining dental area, is three-dimensionally designed using the surface data of the remaining dental area acquired and corresponding mold data are produced, and the at least one denture element is partially or completely produced on the basis of the surface data and mold data, with one or more of the following aspects being taken into consideration: dimensionally designing web constructions between tooth stumps and producing corresponding mold data; acquiring surface data of a three-dimensional dental impression, on one side, on two sides or on several sides; graphically representing the surface data, fixing at least one mark on the graphical representation of the surface data, and constructing mold data for a denture element based on the surface data and taking into consideration the mark in the graphical representation of the surface data; producing primary crowns by means of 3+1 axes milling or angular axis milling techniques; optimally aligning a milled blank with the element to be milled by "uphill/downhill milling"; and or using for scanning the molding waxes a molding wax including at least 1/3 to 4/5 parts by weight of zirconium oxide powder.
Abstract:
Self-ligating orthodontic brackets include a marking system for identifying which tooth or subset of teeth a specific bracket within a set of non-identical brackets pertains and/or for assisting in aligning a bracket on a tooth. The bracket includes a temporarily visible mark that is visible during placement of the bracket onto a tooth but which does not remain visible during long term use of the orthodontic bracket to straighten teeth. The marking may be removable or it may be hidden during use of the bracket to straighten teeth. The orthodontic brackets are advantageously included within a set or kit intended for placement onto the teeth of a patient. They advantageously include a ligation cover selectively movable between an open, non ligating position relative to an arch wire slot in a bracket base and a closed, ligating position relative to the arch wire slot.
Abstract:
The present invention discloses a self-adjusting matrix system for tooth restoration without a tightness retainer. It consists of a stainless steel band having "U" shaped wire springs which links the band ends together. The band is rolled up around the tooth to be restored and held in position by means of said "U" springs. The "U" springs are soldered, or fastened through code-coloured matrices and part of the band could be in cellophane for light hardening of the amalgam.
Abstract:
A root post with a releasable insert for taking an impression is disclosed. The post includes a conical or cylindro-conical body (10) of which one end is insertable into a bore in the root canal of a prepared tooth, while the other end includes a tip for engaging an insert (12). Said insert (12) includes a recess with a shape matching that of the tip, and at least one hard spot which enables more accurate positioning and locks the tip relative to the insert.
Abstract:
A radically polymerizable composition comprising at least one polyfunctional radically polymerizable monomer having no acid group, at least one acid group-containing radically polymerizable monomer and/or at least one acidic oligomer, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one initiator for the radical polymerization, wherein the fluoroaluminosilicate glass filler and/or radiopaque glass filler is coated with a silica (hetero)polycondensate. The composition is characterized by high stability and is particularly suitable as a dental material.