There are a number of reasons why it may be necessary to remove amalgam fillings. Over time, the forces from chewing and biting may lead to cracks in the filling, resulting in small gaps where debris and saliva can gather, causing Another issue is the health controversy surrounding the use of amalgam fillings because they contain mercury - a highly toxic substance. Scientists and health care professionals are divided as to whether mercury contained in fillings poses significant health risks to either patients or to dentists. In any case, it iswhite fillings, purely from an aesthetic point offor this reason alone
How do they remove amalgam fillings?
Silver fillings removal is a relatively straightforward process, and your dentist adopts a number of practices to remove silver fillings safely. Your dentist will first numb the area surrounding the affected tooth with a local anaesthetic.
Amalgam removal necessitates the use of a drill which your dentist will use to break-up and dislodge the filling. This generates a substantial amount of heat, leading to an increase in the amount of mercury released, as both amalgam particles and vapor. Your dentist will use cold water to keep the filling cool significantly decreases the levels of mercury vapor.
Another technique your dentist will use is known as 'chunking'. This uses the drill to break the amalgam into pieces, which may then be removed by suction or a hand instrument. A suction instrument or high volume evacuator is then used to clear away the debris. Your dentist may also use a rubber dam to isolate the tooth during to prevent debris from falling into other parts of the mouth.
After safe removal of amalgam fillings your tooth is ready to receive a new filling.
Advantages and health controversies, the advantages of having removed are that they are less attractive than tooth-colored composite fillings; the mercury in the filling is susceptible to heat and cold, causing it to expand and contract, which may result in a tooth fracture and silver fillings do eventually break down and corrode leading to tooth decay.
The disadvantages of having mercury fillings removed is that amalgam tends to last longer than composite resin and are considerably less expensive.
If you are considering having your silver fillings removed, it is best to consult your dentist who will advise you of the alternatives available and the most suitable options for your circumstances.
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