Summary
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1.
There was in an apparent sex predilection for male (male to female ratio is 1. 9:1).
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2.
The peak incidence was in the second and third decades with gradual decline thereafter, and a mean age of 31 years 7 months.
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3.
The most common site was the mandibular molar-ramus region. 22 cases (68.8%) occurred in the mandible and 10 cases (31.3%) in the maxilla.
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4.
The largest number of keratocysts were originally diagnosed as primordial cysts (37.5%), followed by dentigerous cysts (18.8%) and residual cysts (9.4%).
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5.
Radiographs showed various degrees of dental root resorption in 13 out of 25 cases (52%).
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6.
Maxillary keratocysts tended to exhibit a unilocular type and smooth round border, while mandibular keratocysts had scalloped border.
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7.
Eleven out of 21 cysts were clinically combined with infection, and 8 cysts showed only bony swelling and 2 cysts were found in the routine radiographic examination.
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Park, T.W., Kim, S.R. Clinical and radiographic study of odontogenic keratocyst. Oral Radiol. 1, 43–53 (1985). https://doi.org/10.1007/BF02349757
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DOI: https://doi.org/10.1007/BF02349757