Lefort-II fracture involves all of the following bones, except:: (A) Maxilla, (B) Nasal, (C) Ethmoidal bone, (D) Lacrimal bone
Answer is C. Guerin fracture is other name for Le Fort I or low level fracture.
Le Fort II involves maxilla, nasal, lacrimal bones.
Le Fort III involves maxilla, lacrimal, nasal and ethmoidal bones.