 The
most common type of fixed orthodontic appliance is made of
metal. The brackets glued to the teeth are made of a high grade
medical stainless steel.
The metal fixed
appliances are commonly known as 'train track' braces for
obvious reasons. This form of fixed appliance with an edgewise
slot was first used in the1930's. The original design has
undergone many changes over the years.
Contemporary
metal fixed appliances are extremely sophisticated. Each bracket
is specifically designed for each tooth to bring about ideal
tooth and root alignment. The bracket we have chosen to use is a
medium sized bracket with exceptional bonding properties. We
believe that the secret to an efficient treatment starts with a
bracket that stays glued to the teeth. Our internal audit shows
we have a very low bond failure rate.
The adjacent
picture shows a recently cemented metal fixed appliances. The
most important factor when fitting a fixed appliance is to keep
the teeth dry. Moisture and humidity can reduce the bond
strength of the glue. Broken brackets can reduce treatment
efficiency and results in extended treatment times.
Some metal
fixed appliances are extremely efficient giving reduced
treatment times and increased adjustment intervals;
see In-Ovation R. |
