...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 4117596 | Apparatus and method for mounting orthodontic appliances to teeth A method and apparatus for mounting orthodontic appliances, such as brackets, to teeth involves the use of a tape which has an adhesive on a surface thereof, and means for mounting the appliance to the tape such that the rear surface of the appliance whic... | 10/03/1978 |
| 4107844 | Orthodontic appliance A hybrid orthodontic appliance is provided which may take the form of a bracket and/or tube, and which is fabricated of plastic and metal to be used for mandibular and maxillary tooth adjustments. The plastic part of the appliance enables the appliance to... | 08/22/1978 |
| 4100678 | Metal bracket for use in orthodontic treatment A metal bracket for use in orthodontic treatment is provided which comprises a bracket body for receiving and securing a wire which transmits orthodontic force to the tooth and a support base for supporting said bracket body. A plurality of fine pores in ... | 07/18/1978 |
| 4094068 | Orthodontic bracket assembly An orthodontic bracket assembly including brackets mounted upon teeth to ect orthodontic treatment thereof is provided with a self adhesive layer adhered on one side thereof to the surface of the orthodontic bracket which is used to fasten the bracket up... | 06/13/1978 |
| 4068379 | Orthodontic appliance with porous tooth-abutting face Attachment of an orthodontic appliance by direct bonding to a tooth utilizing a composite base with a porous tooth-abutting face and various methods for making the device, such as casting as a unitary structure, or forming the composite base by rolling a ... | 01/17/1978 |
| 4063360 | Orthodontic bracket assembly and method for attachment A new orthodontic bracket assembly is disclosed together with a method of attachment to a tooth wherein a metal orthodontic bracket with a perforated base is attached to the tooth by means of a photopolymerizable adhesive applied to the area to which the ... | 12/20/1977 |
| 4015334 | Posterior direct bond orthodontic unit segment An orthodontic bracket is disclosed which is formed from an elongated section of metal that enables it to be directly bonded to the buccal surfaces of a plurality of the teeth. The bracket is attached to the buccal surfaces of the teeth by direct bonding ... | 04/05/1977 |
| 4010545 | Adhesive bonding to teeth of orthodontic brackets and the like Orthodontic brackets and the like are adhesively secured to teeth by means of a self-curing thixotropic acrylic ester monomer composition wherein the monomer has been made thixotropic through the inclusion of fumed silane treated silica and wherein the ac... | 03/08/1977 |
| 3969821 | Orthodontic bracket An orthodontic bracket is disclosed having one or more projections which extend vertically from the posterior surface of the bracket body. The projections are used for producing a glue-line having a predetermined thickness measured between the posterior s... | 07/20/1976 |
| 3955282 | Process of mounting orthodontic bracket to tooth An orthodontic method, dental composition, and apparatus are provided which permit the direct bonding of orthodontic brackets to teeth. In particular, a method has been devised whereby the tooth, following phosphoric acid etching, is treated sequentially ... | 05/11/1976 |
| 3949477 | Orthodontic method and apparatus In the application of orthodontic brackets to teeth by the indirect method employeing a transfer tray, the use of adhesive activating radiant energy passing through the transfer tray or mold and apparatus for conducting the radiant energy from the mold or... | 04/13/1976 |
| 3936939 | Veneer supported orthodontic appliance An orthodontic appliance according to the present invention may incorporate a thin veneer body of non-metallic material that may be flexible so as to conform readily to the external configuration of a patient's tooth and which veneer body may be bonded di... | 02/10/1976 |
| 3932940 | Dental appliance A removably attachable orthodontic device for application to the face of a tooth and to which orthodontic apparatus may be secured and orthodontic forces applied to move and change the alignment of the tooth in the gum.... | 01/20/1976 |