After this comprehensive compilation of literature on elastics, we can say that they are and they will remain a very good method of force application in orthodontic clinic. They are inexpensive, relatively hygienic and they can be easily placed in patient’s mouth. The force applied by elastics is not constant, so the clinician must be careful when doing selection of elastic force for a particular application. After an exhaustive review of the literature regarding force decay of synthetic elastomeric chains, it can be said that most marketed chains behave in a similar fashion.