45-year-old man had a pericoronal infection of what appeared to be a partially erupted lower third molar. The adjacent first and second molars were missing. Radiographic examination to determine the root anatomy of the third molar prior to its removal revealed the presence of a further tooth distal to the one in question, and it appeared that these two teeth were fused together. This was subsequently confirmed when the teeth were removed. The accompanying radiograph demonstrates an unusual case of gemination between third and fourth mandibular molars. C. R. Stockdale, L.D.X. (Mane.), F.D.S., R.C.X. (Eng.) Manchester, England
Each month this section will bring to the readers of ORAL SURGERY, ORAL MEDICINE AND ORAL PATHOLOGY one or more roentgenograms which demonstrate unusual, unexpected, rare, or bizarre roentgenographic changes. These roentgenograms will be accompanied by an explanation or by words of inquiry regarding the particular change. Please submit 5 by 7 inch glossy black and white prints along with two copies of the description of the case. All material for publication should be submitted to Dr. Lincoln R. Manson-Hing, University of Alabama School of Dentistry, Medical Center, Birmingham, Alabama.