What is a Temporary Restoration

they are designed to maintain and restore function

What are some indications for temporary restorations

- reduce the sensitivity and discomfort of a tooth to determine a diagnosis - maintain function and esthetics of tooth till permanent can be placed - protect the margins of prepped tooth - prevent shifting of adjacent or opposing teeth

Why do we use temporary restorations?

- a patient may have a small pit - lost their filling - cusp is gone - dentist has prepped the tooth for a cast restoration

what is a material do we use as a intermediate restoration ?

IRM

what is IRM?

Zinc-Oxide eugenol composition

what are common uses of IRM

- restoration of primary teeth - restorative emergencies - caries management

how is IRM mixed?

They are mixed manually on a treated paper pad, which are the triturated to activate

what is a provisional restorative material used for?

they are designed to cover the major portion of a tooth or several teeth for a longer time.

composition of whitening materials

tooth-whitening products are made from peroxide based ingredient, which work deep within the enamel to remove staining and discolouration.

where can patients choose to do tooth whitening?

-at home or in office

What is an Indirect restoration?

An indirect restoration is fabricated outside the mouth by dental lab technicians

what is the chain procedure of indirect restorations?

- prep of the tooth - taking final impression - waxing a pattern - investing the pattern - casting the restoration - fishing and polishing the casting - cementing the restoration in place

what are the 3 noble metals?

- gold - palladium - platinum

what are the types of gold-noble metal alloys?

soft - type I alloy - used for casting inlays and subject to slight stress during mastication medium - types II alloy - used for all types of casts hard - type III alloy - acceptable for inlays, full crowns, three-quarter crowns and anterior or posterior bridge abutments extra-hard - type IV alloy - designed for crowns, bridges, and cast removable partial dentures

what are combinations of ceramic-metal restorations

Porcelain fused to metal PFM Porcelain bonded to metal PBM ceramico-restorations C/M Porcelain-metal P/M

what classification is IRM in?

can be used as a type 2 and 3 as a cementation, temporary and base

Why should a patient choose porcelain restorations?

- stronger than direct restorations - shading of colors match the natural teeth well - material has the strength of metal - they are a good insulator - material has low coefficient of thermal expansion

what are the 3 types of composites

- Macrofilled composite - contain the largest of filler particles, providing greater strength - Microfilled composites - contain inorganic fillers much smaller than macrofilled composites - Hybrid composites - used most often today, contain mixed range of particles