Final answer:
The factor that is not considered in aesthetic dentistry is Ankyloglossia.
Step-by-step explanation:
The factor that is not considered in aesthetic dentistry is Ankyloglossia. Ankyloglossia, also known as tongue-tie, is a condition where there is an abnormal attachment of the lingual frenulum (the tissue that connects the tongue to the bottom of the mouth). It does not directly affect the aesthetics of the teeth.