SINGLE TOOTH/MULTIPLE TEETH- REMOVABLE PARITAL DENTURE:
A removable partial denture is a denture for a partially edentulous patient who desires to have replacement teeth for functional or esthetic reasons and who cannot have a bridge for any number of reasons. RPDs possess clasps of cobalt-chrome metal or plastic that clip onto the remaining teeth, making the RPD more stable and retentive. Parts are Major connector, minor connector, direct retainer, indirect retainer, physical retainer, base teeth.
CAST PARTIAL DENTURE
A cast partial denture is removable or permanently attached and replaces one or more missing teeth, receiving support and retention from underlying tissues and some or all of the remaining teeth. The underlying structure is made from casting metal to give it strength and rigidity.
FIXED PARTIAL DENTURE- CROWN N BRIDGE
Crowns And bridges are fixed prosthetic devices for replacing missing teeth. Unlike removable devices such as dentures, which can be taken out cleaned daily, crowns and bridges are cemented onto existing prepared teeth or implants, and can be removed only by a dentist, with an instrument.
A crown is fabricated after the tooth is prepared to a smaller size after reducing it with drills and then an impression is made which is sent to the lab, where the crown is fabricated.A shade guide is also used to match the shade with the adjacent teeth, so as to get an ideal colour match. This is usually done for porcelain crowns. Following this it is sent back to the dentist, where it is cemented, using various cements.
Crowns and bridges can last for several years, however, they can sometimes become loose and fall out, or break. In case a crown becomes loose or comes off, it can be preserved and recemented by the dentist. Repeated episodes of crowns coming off suggest that there are problems either in the biting forces or the height of the prepared crowns may be less, for which further adjustments are required.
All ceramic crowns and bridges provide excellent long term esthetic solutions for patients. They have:
- High stability and precise fit.
- Biocompatibility and long term esthetics.
Lava zirconia based restorations have zirconia copings and frameworks which provide the strength while the veneering ceramic provides the esthetics. Milled from a presintered Lava zirconia block, each framework is coloured using one of eight VITA shades. After sintering for 10 hours to gain strength and fracture resistance, the framework is layered with feldspathic Lava Ceram porcelain. The final lava restoration demonstrates exceptional marginal fit, life-like transclucency and long term durability.