Over the years as dentistry has evolved, there have been a growing
number of options available for repairing teeth. The goal of dentistry
has always been to develop materials that would simulate natural
tooth structure as closely as possible, in both appearance and physical
properties, and avoiding any potential harmful side effects.
past few years there has been a growing concern for the potential
health hazards imposed by use of dental materials that include toxic
compounds.The most common source of concern has been the mercury
found in silver fillings. Mercury is one of the most toxic metals
found in nature and is a major component of silver amalgam fillings.
to concerns of Bio-compatibility, when choosing a restoration we
have to consider the size of the defect that is being repaired,
the function of the tooth, and the biting surface involved. Strength,
durability, and cosmetic acceptability are all considerations when
choosing a restorative material.
typical Silver Amalgam Filling with fractures and underlying
Beautifully restored with Bio-compatible porcelain restorations
are a tooth colored material that is a combination of glass like
particles and a resin. The material bonds strongly to the tooth
structure and the glass-like particles make the material resistant
to wear. The use of these materials are restricted to smaller type
fillings and areas not under heavy chewing pressure.
encounter situations where a significant part of the biting surface
of a tooth has been damaged and weakened. Here the material of choice
would be a ceramic or gold inlay. Both are both well tolerated from
a biological standpoint and provide the strength and durability
that is needed.
defect to be repaired grows to a significant size, the strength
of the tooth will be compromised. Teeth with very large silver amalgam
fillings often develop cracks that extend deep into the tooth structure.
These teeth are best restored by a means that covers and reinforces
the strength of the tooth by completely covering it. A ceramic or
gold, onlay or full crown, accomplishes this objective.