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Acrylic resin was the first veneering material used to help restore the aesthetics of crown and bridges. The aim was to maintain a similar colour to natural teeth by attaching it on the labial surface of metal crown / bridges; however, resin-veneered dental prosthetics lacked stability and abrasion resistance. [17]
In dentistry, a crown or a dental cap is a type of dental restoration that completely caps or encircles a tooth or dental implant. A crown may be needed when a large dental cavity threatens the health of a tooth. Some dentists will also finish root canal treatment by covering the exposed tooth with a crown.
Crown-to-root-ratio is the ratio of the length of the part of a tooth that appears above the alveolar bone versus what lies below it. [1] It is an important consideration in the diagnosis, treatment planning and restoration of teeth , one that hopefully guides the plan of treatment to the proper end result.
A Rochette bridge is a type of dental prosthesis popular in the 1970s, [citation needed] and described by Alain Rochette in 1973 [1] as a form of resin retained bridge that relied on countersunk holes perforating the metal abutment wing. These would be filled with composite cement on seating the restoration, providing macromechanical retention ...
CAD-CAM (aka Computer Aided Design-Computer Aided Manufacture) is a fabrication method which aids the production of dental restorations e.g. crowns, bridges, inlays and onlays. It is possible for these indirect restorations to be provided in one visit. [25] This works by first taking an intra-oral scan to produce a 3D virtual impression.
The crown is usually visible in the mouth after developing below the gingiva and then erupting into place. If part of the tooth gets chipped or broken, a dentist can apply an artificial crown . Artificial crowns are used most commonly to entirely cover a damaged tooth or to cover an implant.
A resin-retained bridge requires a very specific set of design principles. The following should be followed when designing the bridge: [3] Design should be kept as simple as possible; Should cover as much of the abutment tooth or teeth as possible; Be rigid; Permit the control of the occlusal contacts
In dentistry, Ante's law is a postulate about crown-to-root ratio put forth by Irwin H. Ante [1] in a thesis paper he wrote in 1926. [2]Ante's law states that "the total periodontal membrane area of the abutment teeth must equal or exceed that of the teeth to be replaced."