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Research Article| Volume 14, ISSUE 10, P1165-1169, October 1961

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A survey of 3,874 routine full-mouth radiographs

II. A study of impacted teeth
  • Author Footnotes
    * United States Public Health Service Postdoctoral Research Fellow, Department or Oral Pathology, Indiana University School of Dentistry, Present address: College of Dentistry, University of Kentucky Medical Center, Lexington, Kentucky.
    Stephen F. Dachi
    Footnotes
    * United States Public Health Service Postdoctoral Research Fellow, Department or Oral Pathology, Indiana University School of Dentistry, Present address: College of Dentistry, University of Kentucky Medical Center, Lexington, Kentucky.
    Affiliations
    Indiana University School of Dentistry Indianapolis, Ind., USA
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  • Author Footnotes
    ** Formerly Associate Professor and Head, Department of Oral Pathology, Dental School of the University of Oregon, Portland, Oregon. Present address: Department of Pathology, University of Southern California School of Medicine, Los Angeles, California.
    Francis V. Howell
    Footnotes
    ** Formerly Associate Professor and Head, Department of Oral Pathology, Dental School of the University of Oregon, Portland, Oregon. Present address: Department of Pathology, University of Southern California School of Medicine, Los Angeles, California.
    Affiliations
    Dental School of the University of Oregon Portland, Ore., USA
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  • Author Footnotes
    * United States Public Health Service Postdoctoral Research Fellow, Department or Oral Pathology, Indiana University School of Dentistry, Present address: College of Dentistry, University of Kentucky Medical Center, Lexington, Kentucky.
    ** Formerly Associate Professor and Head, Department of Oral Pathology, Dental School of the University of Oregon, Portland, Oregon. Present address: Department of Pathology, University of Southern California School of Medicine, Los Angeles, California.
DOI:https://doi.org/10.1016/0030-4220(61)90204-3
A survey of 3,874 routine full-mouth radiographs
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      Abstract

      In a comprehensive study of 3,874 routine full-mouth radiographs, the following findings concerning impacted teeth were noted:
      • 1.
        The incidence of patients with at least one impacted tooth was 16.7 per cent.
      • 2.
        The teeth most often impacted, in order of frequency, were the maxillary third molar, the mandibular third molar, the maxillary cuspid, and the mandibular premolars.
      • 3.
        The incidence of impaction was 21.9 per cent for maxillary third molars and 17.5 per cent for mandibular third molars.
      • 4.
        The incidence of impaction among maxillary cuspids was 0.92 per cent.
      • 5.
        No sex differences were noted in the impaction of third molars, but maxillary cuspid impactions were found more frequently in female patients than in male patients.
      • 6.
        No statistically significant predisposition toward bilateral impaction was noted among third molars, while a definite tendency toward unilateral impaction was found in maxillary cuspids.
      • 7.
        Thirty-seven per cent of mandibular and 15 per cent of maxillary impacted third molars were found to have areas of radiolucency around their crowns.
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      Article info

      Identification

      DOI: https://doi.org/10.1016/0030-4220(61)90204-3

      Copyright

      © 1961 The C. V. Mosby Company. Published by Elsevier Inc. All rights reserved.

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