Composite fillings are a mixture of powdered glass and plastic resin, sometimes referred to as white, plastic or tooth-colored fillings. They have various advantages over conventional fillings. The composite fillings are best considered for cosmetic reasons as they are tooth colored and are preferred for the front teeth. However many people, who can afford them also get them done on back teeth as so to avoid the appearance of silver fillings on opening the mouth. The main advantages and disadvantages are discussed as under:
Dental Amalgam Vs Dental Composite Filling
Small cavity cutting is done because the material can flow into small places
As less tooth cutting is done, this leaves your own tooth stronger. They integrate well with the tooth.
Can be easily fixed if damaged.
Secondary decay is easier to spot beneath tooth colored (composite) filling.
They are temperature and electrical insulators and are resistant to extremes of hot and cold.
More natural and attractive choice.
They are more strong and durable.
They bond to the tooth structure well and support the remaining tooth to help prevent breakage and damage to the tooth.
More aesthetic than any other fillings(eg.amalgam fillings)
Ready to use immediately after being placed on the tooth.
Versatile in use as they can be used to repair broken, worn or chipped teeth.
Single visit for fillings.
Does not corrode.
Frequency of repair or replacement is low to moderate.
Environmentally safe does not contain mercury.
There are some disadvantages of composite fillings:
They need proper isolation during bonding, especially during etching because if contaminated with saliva, whole process needs to be repeated again.
There is a potential to leak which can lead to secondary caries and this means your teeth needs a new filling.
They are generally more expensive than amalgam fillings.
They are vulnerable to staining by food stuffs.
Increased chair-side time as procedure of placement is complicated.
Moderate occurrence of sensitivity.
Material shrinks when hardened, leading to further decay and sensitivity.
Requires more than one visit for inlays, crowns and veneers.
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