what causes tongue scalloping
A scalloped tongue can be caused by a B12 deficiency, or by TMJ or  thyroid disorder. According to The Association of Tongue  Scalloping With Obstructive Sleep Apnea and Rel â¦ ated Sleep  Pathology, scalloping is 70% indicative of sleep apnea.ccording to the famed nutritionist, Dr. Gillian McKeith, a scalloped tongue is caused by a sluggish or weak spleen. Your spleen is considered your energy battery. If you have a midline tongue crack it also indicates weak digestion. You could be taking all your vitamins but not digesting them.