biopsy

removal of a small portion of tissue for microscopic examination

endoscopic

use of an endoscope to examine the interior of a hollow organ or body cavity

dent/o

teeth

dentist

specialist in treatment of the teeth

orthodontist

dental specialist who prevents and corrects misaligned teeth

gingiv/o

gums

gingivitis

inflammation of gums

gloss/o, lingu/o

tongue

hypoglossal

pertaining to under the tongue

sublingual

pertaining to under the tongue

or/o, stomato/o

oral

oral

pertaining to the mouth

stomatopathy

disease of the mouth

ptyal/o

saliva

sialorrhea

excessive flow of saliva; known as hypersalivation/ ptyalism

sial/o

saliva, salivary gland

esophag/o

esophagus

esophagoscope

instrument for examining the esophagus

gastr/o

stomach

gastroscopy

visual examination of the stomach

pharyng/o

pharynx (throat)

pharyngotonsillitis

inflammation of the pharynx and tonsils

pylor/o

pylorus

pylorotomy

incision of the pylorus (lower portion of the stomach)

duoden/o

duodenum (first part of small intestine)

duodenoscopy

visual examination of the duodenum