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Displaced teeth!
Radiology forum Each month this section will bring to the reader of ORAL SURGERY, ORAL MEDICINE, AND ORAL PATHOLOGY information of practical relevance to the art and science of diagnostic imaging and diagnostic images with unusual interpretive features. Practical notes and radiographs will be accompanied by an explanation or inquiry. Please submit 5 X 7 inch glossy black-and-white prints of your illustrations. All materials for publication should be submitted to Dr. Allan G. Farman, Division of Radiology and Imaging Sciences, Department of Biological and Physical Sciences, School of Dentistry, University of Louisville, Louisville, KY 40292.
DISPLACED
TEETH!
expects teeth to be examined by a 0dentist;ne generally however, this patient (Fig. 1) had 17 perfectly formed teeth “inspected” by her gynecologist. This is a case of ovarian teratoma, a not infrequent site for supernumerary teeth in women.
Bruce L. Douglas, DDS 2401 Dufly Lane Riverwoods, IL 60015
DEVELOPMENTAL LINGUAL MANDIBULAR RAMUS
P
DEFECTS
view demonstrates ovarian ter-
ON THE
osterior lingual cortical defects of the mandible, frequently referred to as Stafne’s idiopathic bone cavities, or lingual bone depressions, are common radiographic findings. l-6 These benign developmental defects, ranging from 2 to 18 mm in diameter (dry bone dimensions) are found primarily in adult males and are located in the retromolar region, inferior to the mylohyoid ridge. Conversely, bone defects in the mandibular ramus are rare radiographic findings that have been previously reported in only five pers0ns.l We examined 6300 human mandibles of both sexes and all ages, housed at the Smithsonian Institution. These skeletal samples representing groups from North, Central, and South America; Egypt; Siberia; 124
Fig. 1. Anterior-posterior atoma.
and Europe revealed 115 adults with idiopathic bone cavities (104 male), three adults with defects in the
mandibular sulcus, and two adults with defects high on the dorsal part of the ramus. The latter two defects are the subject of this report. Case reports
The subjectsof our study were Alaskan Eskimomales who died in the 1800s.The younger, 25 to 35 yearsof age (No. 372892)had all histeeth andshowedonly mild dental attrition and no cariouslesions.The older male,who died at age40 to 50 years(No. 339058) had severedental attrition andantemortemlossof the mandibularright molars. The lingual depression in the youngermale(Fig. 1) measured5 X 3 X 2 mm(maximumlength, breadth,anddepth
DISPLACED
TEETH!
expects teeth to be examined by a 0dentist;ne generally however, this patient (Fig. 1) had 17 perfectly formed teeth “inspected” by her gynecologist. This is a case of ovarian teratoma, a not infrequent site for supernumerary teeth in women.
Bruce L. Douglas, DDS 2401 Dufly Lane Riverwoods, IL 60015
DEVELOPMENTAL LINGUAL MANDIBULAR RAMUS
P
DEFECTS
view demonstrates ovarian ter-
ON THE
osterior lingual cortical defects of the mandible, frequently referred to as Stafne’s idiopathic bone cavities, or lingual bone depressions, are common radiographic findings. l-6 These benign developmental defects, ranging from 2 to 18 mm in diameter (dry bone dimensions) are found primarily in adult males and are located in the retromolar region, inferior to the mylohyoid ridge. Conversely, bone defects in the mandibular ramus are rare radiographic findings that have been previously reported in only five pers0ns.l We examined 6300 human mandibles of both sexes and all ages, housed at the Smithsonian Institution. These skeletal samples representing groups from North, Central, and South America; Egypt; Siberia; 124
Fig. 1. Anterior-posterior atoma.
and Europe revealed 115 adults with idiopathic bone cavities (104 male), three adults with defects in the
mandibular sulcus, and two adults with defects high on the dorsal part of the ramus. The latter two defects are the subject of this report. Case reports
The subjectsof our study were Alaskan Eskimomales who died in the 1800s.The younger, 25 to 35 yearsof age (No. 372892)had all histeeth andshowedonly mild dental attrition and no cariouslesions.The older male,who died at age40 to 50 years(No. 339058) had severedental attrition andantemortemlossof the mandibularright molars. The lingual depression in the youngermale(Fig. 1) measured5 X 3 X 2 mm(maximumlength, breadth,anddepth