1. Flashcards
Between a FPD and RPD: Which requires previous preparation of the tooth?
FPD only
Between a FPD and RPD: which requires cement?
FPD only between prepped tooth and restoration
What materials are used for FPDs? (4)
Ceramics
Composites
Hybrids
Metals
Between a FPD and RPD: More resistant and abrasive?
FPD
Between a FPD and RPD: More resilience?
RPD
Between a FPD and RPD: BEtter hygiene?
RPD
Between a FPD and RPD: More comfortable and psycological acceptance?
FPD
Between a FPD and RPD: Foreign body sensation?
RPD
Full fixed prothesis example? (2)
- Implant supported (cement/screw)
- Tooth supported
Partial fixed prothesis example? (2)
- Implant-supported
- Tooth supported
Full removeable prothesis example? (3)
- Mucosa-supported
- Implant-supported
- Implant-retained
Partial removeable prothesis example? (2)
- Mucosa-supported
- Tooth-retained
How is the retention of a fixed prothesis achieved?
By the friction between the two surfaces
How is a FPD preventative?
Maintain the health and integrity of the dental arches
General indications of FPD? (6)
Psychological Systemic Diseases Orhodontic Reasons Periodontal Reasons Esthetic Functional
Local indications of FPD?
Dental Protection Replace Missing Teeth To alter shape, size or inclination of teeth Appearence Trauma
General contraindications of FPD? (7)
Psycologic (non reversible) Systematic Diseases Deficient Hygiene No Patient Cooperation Macroglosia Age Multiple cavities
Local contraindications of FPD? (5)
Crown-Root RATIO Prosthetic Space Health of the abutment Gap Length Previous Patology
How to treat a patient with epilepsy? (3)
- Avoid long appointments and
situations that lead to seizures. - No Removable Prosthesis
- Metallic Occlusal Surface
How to treat a patient with cardiovascular disease?
Be careful with anaesthetics
How to treat a patient with diabetes? (2)
- Predisposition for periodontal situations.
- Make sure they are controlled and have eaten.
Orthodontic indications for FPD? (2)
- To Avoid Orthodontic Treatment
- To Maintain occlusal stability
Periodontal indications for FPD? (2)
- To Create and/or correct
Axial forces. - To correct occlusal
trauma
Esthetic indications for FPD?
Bone and gingiva limitations
Functional indications of FPD? (3)
- Restoring occlusal stability can solve TMJ disorders
- Restore the masticatory function
- Restore phonetics abilities
How can you solve TMJ disorders by restoring occlusal stability (2)
- correcting interferences and prematurity’s
- restoring missing guidance
FPD indications for dental protection? (4)
- Replace Missing Teeth
- To alter shape, size or inclination of teeth
- Appearance
- Trauma
Abutment prognosis: crown length?
Longer = better prognosis
Abutment prognosis: mobility?
Absolute contraindication for abutments
Abutment prognosis: things that affect the root? (5)
Radiolucent images Rhizolysis Hypercementosis Number, shape Root-Crown Proportion
Prognosis: gap shape curvature?
The greater the curvature, the worse the prognosis
What can cause no prosthetic space? (3)
- Dental movements (extrusion, inclination)
- Gingival enlargement
- Trauma
What are the classifications of tooth supported FPD? (2)
- Unitary
- Partial
What is a partial tooth supported FPD?
Bridge
What are unitary tooth supported FPDs? (3)
- Intracoronal
- extracoronal
- Intraradicular
What is an intracoronal FPD? (2)
- inlay
- onlay
What is an extracoronal FPD? (3)
- Partial coverage
- Full coverage
- Veneer
What is a full coverage FPD? (4)
- All Metal crown
- Metal-Ceramic crown
- Veneer Crown
- All Ceramic Crown
What are the classifications of implant supported FPD? (3)
- Unitary
- Bridge
- Full rehabilitation
Dental materials porosity?
They should not be porous
Dental materials coefficient of thermal expansion?
Should be low
Dental materials: Metallic? (2)
Gold
Metal alloys
Dental materials: Non-Metallic? (4)
- Acrylic
- Ceramic
- Composite
- Hybrids
Dental materials: Material combos? (2)
- Metal-ceramic
- Metal-acyrlic
Advantages of using gold? (7)
Strength Longevity Good Biocompability Hypoallergenic Minimal Wear to opposing teeth Fit Less tooth reduction required
Disadvantages of using gold? (3)
Esthetics
Expensive Cost
It cannot be fused with ceramics
What is a high noble alloy?
More than 40% wt gold + 60wt% other noble metal
What is a noble allow?
More than 25wt% noble metals
- no limit for gold content
What is a predominantly base metal alloy?
more than 75wt% base metal + less than 25wt% noble metal
Noble alloy advantage compared to gold? (3)
- Increased strength
- Increased hardness
- More resistant to abrasion
Noble alloy advantage compared to base metals? (4)
- Less corrosion
- Less abrasion
- Easier to adapt and polish
- More accurate
DISADVANTAGES OF HIGHLY NOBLE AND NOBLE ALLOYS COMPARED TO BASE METALS (3)
- More Expensive
- Less Rigid: Disadvantage in long bridges
- More tooth reduction required
What metallic material can be used for inlays?
Gold type I II
What metallic material can be used for full coverage crowns?
Gold type III
What metallic materials can be used for full coverage crowns? (2)
- totally metallic
- Metal-ceramic
What metallic material can be used in bridges? (3)
- Metal-ceramic
- highly or noble alloys
- Cr-Ni if they are long
What metallic material can be used in metallic pin cast?
Noble or highly noble alloys
What material is mainly used for provisionals?
Resin materials
What material allows reline directly in the patients mouth?
Acrylic
Acrylic is not… (4)
- very resistant
- abrasive
- stable colorwise
- accurate fitting
Acrylics are … (3)
- manipulated easily
- esthetic (for short period)
- cheap
Acrylic biocompatibility?
Low
Ceramic advantages? (7)
Hardness Chromatic Stability Hygiene Accuracy No heat changes (protects the pulp) Biocompability (with soft tissues) ESTHETICS
Ceramic disadvantages? (4)
Fragile
More tooth reduction
Not resilient
Enamel abrasion of the antagonist
Feldespathic porcelain composition? (3)
Feldespar 85%
Quartz 15%
Kaolin
What is the composition of aluminious ceramics? (3)
- In Ceram Alumina 99% aluminum oxide
- In Ceram Spinell 28% magnesium oxide
- In Ceram Zirconia 33% zirconia
What is the composition of zirconia based ceramics?
- Zirconia 95%
What material is a glass ceramic?
Feldespathic
What material is a glass ceramic with fillers? (3)
- Leucite-Reinforced
- Lithium Disilicate
- Glass-inflitrated
What material is a glass free ceramic? (2)
Polycrystallines:
- Aluminious zirconia
How are ceramics classified by their microstructure? (4)
- Glass based system, mainly sillica
- Glass based systems with fillers
- cyrstalline-based systems with glass fillers
- polycrystalline solids
What are the glass based systems with fillers? (3)
2.1 Low-to-moderate leucite containing feldespathic glass—known as feldespathic porcelain, these are the
more esthetic and the more fragile too
2.2 High-leucite-containing glass. Approximately 50% of leucite and the rest of aluminisilicate glass
2.3 Lithium-disilicate glass ceramic, it is a new type developed by ivoclar (IPS e-max)
What are the crystalline-based systems with glass fillers?
Developed as an alternative for metal ceramics. Glass-infiltrated with partially sintered alumina, the
InCeram
What are the polycrsyaline solids?
These are solid-sintered monophase ceramics. They can be made of aluminous-oxide or zirconia
What are the classifications of ceramics based on processing technique? (3)
- Powder-liwuid
- pressable blocks
- CAD/CAM
What is a powder-liquid ceramic?
glass-based systems, generally made for veneering cores made from either
metal, alumina or zirconia
What is a pressable block ceramic?
of glass-based systems (Vitabloc Mark II for the CEREC, IPS Empress), for inlays
and onlays, anterior crowns.
What is a CAD/CAM ceramic?
used for cores that will be veneered with a powder-liquid porcelain
