The VDOS mock theory exam consists of 100 four-part multiple-choice questions, which may be accompanied by images (clinical photographs, radiographs, etc.). Participants are allowed 4 hours to complete the exam, which is designed to assess their knowledge of the scientific literature relevant to dentistry and oral surgery. The correct answers are revealed following completion of the exam. Only the participants will know their exam performance. Please note, this exam contains the same questions as in the exam given on January 10 in the morning (AM).