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Abstract
The paradental cyst is an odontogenic cyst of inflammatory origin, which occurs on
either the buccal, distal, or (rarely) mesial aspects of partially erupted mandibular
third molars. In most cases there is an associated history of recurrent pericoronitis.
The clinicopathologic features of 50 cases are reviewed. The frequency of the paradental
cyst is 3% to 5% of all odontogenic cysts, although we believe its true incidence
to be higher. All cases occur in the mandible, and there is a marked preponderance
in males. White persons are affected more frequently than blacks. The size of the
cysts varies from 1 to 2 cm; they are attached to the cementoenamel junction (CEJ)
and the coronal third of the roots. Histologically, they cannot be distinguished from
other inflammatory odontogenic cysts. While origin from junctional epithelium or cell
rests of Malassez cannot be entirely excluded, we favor an origin from reduced enamel
epithelium and suggest that cyst formation occurs as a result of unilateral expansion
of the dental follicle secondary to inflammatory destruction of bone and periodontium.
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References
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- The paradental cyst: a specific inflammatory odontogenic cyst.Br Dent J. 1976; 141: 9-14
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- Microscopic features of the lateral periodontal cyst.Scand J Dent Res. 1975; 83: 103-110
- A radiological study of the frequency and distribution of impacted teeth.J Dent Assoc S Afr. 1982; 37: 627-630
- Incidence of impacted teeth.Int J Orthod. 1930; 16: 885-890
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Copyright
© 1987 Published by Elsevier Inc.
