Glass Ionomer ( Part 3 ) Compomer ?

 What is compomer ( polyacid modified composite resins. )

Comp = Composite, omer = Glass ionomer.

with mean that Compomer is  new material was a hybrid between composite resins and glass-ionomer cement, retaining the benefits of both while minimising their respective disadvantages

composite resins have superior strength, fracture toughness and aesthetics compared with glass-ionomer cement, 

but in general, lack the ability to bond chemically to tooth substance and release fluoride. 

Compomers have been a successful addition to the range of direct restorative materials.

compomers are more closely related to composite resins than glass-ionomer cement.

👉Composition👈

Compomers are resin-based materials but their composition varies between brands. In general, compomers contain:

• polymerisable resins with methacrylate and polycarboxylate groups

• glass filler particles, such as fluoro-alumino-silicate, strontium fluoro-silicate or barium fluoro-silicate glass

• photoinitiators (camphorquinone/amine system)

• stabilisers.

Advantage  : 

superior strength, fracture toughness and aesthetics compared with glass-ionomer cement 

But Less than Composite.

has the ability to release fluoride

Disadvantage  : 

require Acid etch and bonding, which is considered More sensitive than Glass ionomer.

Less strength than Composite 

Less esthetic than Composite 

Indication : 

all types of cavities in deciduous teeth
cervical cavities (carious or non-carious) in adults
small load-bearing restorations in adults

Contra-Indication: 

Class IV & II

Large area restoration ( Class II or MOD )

High-Stress bearing Area

e  e) Twinky Star, Voco™  (Coloured light-curing compomer restorative material with glitter effect )

Advantages :

Eight attractive colours with glitter effect, for pedo

Shade guide with original material

Easy and quick application from Caps

Children overcome their anxiety

Parents can more easily motivate children to see the dentist

Indications:

Fillings in deciduous teeth

e  e) Nova Compomer Classic, IMICRYL™  (Compomer-based light-curing dental restorative material with high and long term fluoride release).

   Advantages :

combines the benefits of glass ionomers and composites in one material.

High level and long term fluoride release

Excellent esthetic properties, radioopaque

Easy polishability, contouring and adapting good handling properties

Nova Compomer contains strontium glass due to strontium glass

Nova Compomer resist breakdown and enhances stability in the oral
environment than containing barium glass products
Bacteriostatic effect

A1, A2, A3, A3.5, A4, B1, B2, B3 colour selections

Indications:

• Restoration of Class V cavities (cervical caries, root erosion, wedge-shaped defects)

• 
  
• Restorations in deciduous teeth
• 
  
• Intermediary restorations
• 
  
• Anterior Class III restorations

Contra-Indications:

Esthetic Restoration (Class IV).

High-Stress Bearing Area ( Class II )

Direct or Indirect Pulp Capping.

N.B( there's also Flowable compomer "Nova Compomer Flow "

Which has the same properties as " Classic Nova Compomer " )

e)izoline,Vladmiva™  (Light-cured lining compomer).

Advantages :

fluoride release

 low solubility

thermal insulation properties

chemical affinity to polymeric materials which  provides a high degree of coupling with composites

Indications:

lining (indirect isolation of a pulp) under composite restorations.

Contra-Indications:

lining under amalgam or metal restoration.

Direct pulp capping (DPC).

Moisture field with improper isolation

e) Glasiosite,Voco™  (Light-curing compomer restorative material).

Advantages :

High abrasion resistance, compressive and transverse strength

Very good adhesion to dentine and enamel with the self-etch-bond Futurabond NR

Excellent modelling and polishing properties

Continuous fluoride release

Indications:

Restoration of deciduous teeth

Filling of cavities class III and V

Masking of discoloured anterior

Long-term temporary restoration of class I and II cavities

Extended pit and fissure sealing

Contra-Indications:

Class II and I

Aesthetic area

Core build-up material

e)Dyract eXtra, Dentsply sirona™  (light-curing restorative material for all cavity classes in anterior and posterior teeth.).

Advantages :

combines the fluoride release of glass ionomer materials with the strength and esthetics of a light-curing composite.

release fluoride ions, act on the tooth restoration interface as an acid buffer and effectively support the prevention of approximal caries.

Very good adhesion to dentine and enamel 

Excellent modelling and polishing properties

Indications:

all cavity classes in anterior and posterior teeth.

Contra-Indications:

Core build-up material.

Moisture field with improper isolation.

e) Compoglass F Cavifil, Ivoclar™  ( Light-curing universal micro filled composite).

Advantages :

Polish to a high gloss; shade stability

Excellent marginal adaptation and durable marginal seal

High stability of shape and durable contact points

High radiopacity and continuous fluoride release

Excellent wear resistance

Multiple Shades available

Indications:

all cavity classes in anterior esthetic restoration.

Contra-Indications:

Class IV & II

Large area restoration ( Class II or MOD )

High-Stress bearing Area

e)

Herculite™ XRV Ultra™

, Kerr™  ( Universal Nanohybrid Dental Composite).

Advantages :

Polish to a high gloss; shade stability

Excellent marginal adaptation and durable marginal seal

High stability of shape and durable contact points

High radiopacity and continuous fluoride release

Excellent wear resistance

Multiple Shades available

replicating the opalescence and fluorescence of the natural tooth.

Indications

all cavity classes in anterior esthetic restoration.

Class I & II

....