Dental Aesthetic Index (mDAI)
might argue that the beauty of a person's smile is subjective
and can't be broken down into a universally accepted set
of objective measurements, but in fact, several attempts
have been made to do just that over the past years. The
SASOC, DFA and Illustrated Scale all measure dental malocclusion.
They don't however look at a patient's overall facial structure.
Because of this they fall short as effective tools in our
efforts to identify and measure all of the elements that
make a person's smile attractive.
tool is the Dental Aesthetic Index (DAI), a system for analysing
smiles that combines orthodontic measurements with socially
defined aesthetic standards. The DAI grades a patient's
smile using a series of measurements and assessments.
over the past several years suggests that there is a more
effective system for assessing our patient's smiles. It
is based on a set of 10 basic principles that cover at all
aspects of a patient's smile as it relates to their overall
facial structure, and grades them using a simple system.
Using the DAI as a starting point, the criteria we use to
grade a patient's smile enhanced leading to development
of the modified Dental Aesthetic Index or mDAI. With the
mDAI we can assess each of the 10 smile design principles,
and using a simple rating system, grade the patient's overall
This based on an article on Smile Classifications. A 10-point system for grading patients' smiles is presented which would allow the profession to use a common language when discussing aesthetic treatments with our patients and colleagues. This system can be a valuable tool in the pre-diagnostic phase of treatment to provide an objective assessment of a patient's smile, in the surgical phase as a guide to treatment, and in the post- surgical phase, when assessing the success of treatment.