After evaluating the percentage of molar occlusion (the width of the molar table or surface used in grinding foodstuffs during mastication) I recommend and incisor reduction when molar occlusion is less than 75% for increasing feed efficiency & correcting incisor abnormalities which extends the functional life of the cheek teeth, because the occlusal surfaces will wear
more uniformly when molar occlusion is close to 100%. 

In older horses that have undergone extensive dental correction for severe malocclusions, and in which the degree of change is such that the horse may be uncomfortable while eating for a few days, I advise waiting until the next visit to perform incisor reduction.  Additionally, if molar occlusion is low, a mash made from a complete (senior type) pelleted feed is recommended.

 

Reaction is individual and it is not uncommon for some dental patients to take a couple of days to adjust to their new mouth whereas it took years for the malocclusions to take their toll.