Dental bar
AssigneeMJP Elite Studios Limited
InventorsMark Jerome PRICE, Steven William CAMPBELL
Life of this patent
Estimating the term…
Abstract
A dental bar is disclosed for accurately determining the separation and relative orientation of two coping cylinders projecting from dental implants in a patients mouth to receive a prosthesis. The dental bar comprises two sockets, for fitting over and securing to the two coping cylinders, connected to one another by a limb formed of telescopically collapsible sections. The telescoped ections of the limb are of differing cross-sectional shape so as to define between them a volume into which a bonding material may be injected through a port, in order to lock all the limb sections permanently relative to one another.
Claims17
A dental bar for accurately determining the separation and relative orientation of two coping cylinders projecting from dental implants in a patient's mouth to receive a prosthesis, the dental bar comprising:
- a pair of sockets, each configured for fitting over and securing to one of the two coping cylinders;
- a limb comprising at least two telescopically collapsible sections, each of a first and a last of the sections being permanently coupled to a respective socket of the pair of sockets;
- within each adjacent pair of telescoped sections, one section being a shaft and the other section being a tubular housing for slidably receiving the shaft, the exterior of the shaft and the interior of the housing section having differing cross-sectional shape, at least one of the cross-sectional shapes being polygonal;
- the shaft and the housing sections of each adjacent pair being operationally coupled and defining therebetween an empty volume within the tubular housing;
- and,
- a port in fluid coupling with the empty volume, the port permitting injection of a bonding material into the empty volume for locking the telescoping shaft and housing relative to one another upon curing of the bonding material.
A method of manufacturing an accurate model of a mouth fitted with at least two tooth implants, the method comprising:
- securing coping cylinders to the implants;
- providing at least one dental bar having at least a pair of sockets, each configured for fitting over and securing to a respective coping cylinder, the limb comprising two telescopically collapsible sections, each of a first and a last of the sections being permanently coupled to a respective socket of the pair of sockets;
- within each adjacent pair of telescoped sections, one section being a shaft and the other section being a tubular housing for slidably receiving the shaft, the exterior of the shaft and the interior of the housing section having differing cross-sectional shape, at least one of the cross-sectional shapes being polygonal;
- the shaft and the housing sections of each adjacent pair being operationally coupled and defining therebetween an empty volume within the tubular housing;
- and, a port in fluid coupling with the empty volume, the port permitting injection of a bonding material into the empty volume for locking the telescoping shaft and housing relative to one another upon curing of the bonding material;
- fitting the sockets over the two coping cylinders;
- bonding the sockets to the coping cylinders;
- locking the shaft and the housing permanently to each other by injecting a bonding material into the port;
- and,
- releasing the coping cylinders from the implants to provide an impression accurately indicative of the relative spacing and orientation of the implants.
A dental bar for accurately determining the separation and relative orientation of two coping cylinders projecting from dental implants in a patient's mouth to receive a prosthesis, the dental bar comprising:
- two sockets, each configured for fitting over and securing to one of the two coping cylinders;
- a limb comprising a first section and a last section, each permanently coupled to a respective socket of the pair of sockets and an intermediate section in telescoping engagement at respective opposite ends thereof with the first and last sections;
- within each adjacent pair of telescoped sections, one section being a shaft and the other section being a tubular housing for slidably receiving the shaft, the exterior of the shaft and the interior of the housing section having differing cross-sectional shape, at least one of the cross-sectional shapes being polygonal;
- the shaft and the housing sections of each adjacent pair being operationally coupled and defining therebetween an empty volume within the tubular housing;
- and,
- a port in fluid coupling with the empty volume, the port permitting injection of a bonding material into the empty volume for locking the telescoping shaft and housing relative to one another upon curing of the bonding material.
Dependencies are inferred from the claim text.