Home Dentistry Articles Biobloc
Biobloc is a type of orthodontic appliance
used to posture forward the lower jaw. There are many other
types of appliances such as Twin blocs, Frankels, Bionators,
Twin force bite correcters, class II elastics and others, which
attempt to do the same thing. The difference is that the other
appliances exert a backward force or headgear effect on the
growing maxilla. The result is an increase in the overall length
of the front teeth and restriction of maxillary forward growth.
The Biobloc accomplishes forward positioning without these side
effects by the use of flanges which do not touch the persons
tissue unless they posture their lower jaw open or back. The
Biobloc is best used during the mixed dentition when growth
is still available. It can be used with any dental class and
by combining it with a technique that includes extraction of
the primary C D and E teeth can even close the bite in a way
that only surgery could do for an adult.
Biobloc was first used by Dr. John Mew. His
research into the subject revealed that the position of the
jaw is influenced by tropic factors. Using proper posture of
the mandible could guide the jaws to grow their proper form.
Further, tropic factors are the cause of malocclusion.