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  1. Ong, Siew Tin, Chong, Huat Siar
    Ann Dent, 1995;2(1):-.
    MyJurnal
    This paper represents a study of35casesofodontogenic keratocyst (OKC) diagnosed in a Malaysian population. The clinical, radiological and histopathological features, treatment modalities and recurrence of this lesion were analysed. There was a higher prevalence rate among Malaysian Chinese (51.42 percent), while the Malays and Indians accounted for22.86 percent and 25.72 percent respectively. The male to female ratio was 16 : 19.Age at presentation ranged from nine to 71 year,with about 70percent occurring between ages ten to 39 years. A total of40cysts were analysed. Of these, 67.5 percent occurred in the mandible and 32.5 percent in the maxilla. About 88percent of OKC presented as unilocular radiolucencies and 42.0 percent were associated with unerupted or impacted teeth. Histologically, the parakeratinized OKC was the predominant variant found (75.8 percent). The majority of caseswere treated by enucleation (85 percent), and a recurrence rate of20percent was recorded.
  2. Chong Huat Siar, Kok Han Ng
    J Nihon Univ Sch Dent, 1996 Mar;38(1):52-6.
    PMID: 8648412
    Two cases of either peripheral odontogenic fibroma (POF) (WHO type) or peripheral ameloblastoma are reported. Their immunohistochemical characteristics were investigated in an attempt to clarify their histogenesis. The results showed that the epithelial component of this neoplasm tended to retain its distinct odontogenic character and expressed a keratin profile different from that of the overlying oral epithelium from which both cases most probably originated. The connective tissue element of these tumors was vimentin-positive and S-100 protein negative, confirming their mesodermal nature but precluding the possibility of ectomesenchymal derivation. No reactivity for desmin was noted.
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