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A RADIOGRAPHIC STUDY OF DIFFERENTIAL DIAGNOSES BETWEEN ODONTOGENIC KERATOCYST AND UNICYSTIC AMELOBLASTOMA

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Abstract

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¼­ ´Ù¼Ò ¸¹¾Ò´Ù. º´¼ÒÀÇ È£¹ßºÎÀ§´Â Ä¡¼º°¢È­³¶¿¡¼­´Â ±¸Ä¡ºÎ(50.0%), ´Ü¹æ¼º ¹ý¶û¸ð¼¼Æ÷Á¾
¿¡¼­´Â ÇϾǰ¢ ¹× ÇϾÇÁöºÎÀ§(71.9%)¿´´Ù.
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³¶(79.2%)¿¡¼­ ¸¹¾Ò´Ù.
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¿¡ ºñÇØ Ä¡¼º°¢È­³¶(97.9%)¿¡¼­ ¸¹¾Ò´Ù.
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(65.2%)¿¡¼­ ¸¹¾ÒÀ¸³ª, Ä¡Á¶¹é¼±ÀÇ ¼Ò½ÇÀº Ä¡¼º°¢È­³¶(79.2%)¿¡¼­ ¸¹¾Ò´Ù. º´¼Ò¿Í °ü·ÃµÈ Ä¡
¾ÆÀÇ ÀüÀ§µµ ´Ü¹æ¼º ¹ý¶û¸ð¼¼Æ÷Á¾(17.4%)¿¡ ºñÇØ Ä¡¼º°¢È­³¶(50.0%)¿¡¼­ ¸¹¾Ò´Ù.
5. º´¼Ò¿¡ ÀÎÁ¢ÇÑ ÇϾǰüÀÇ ÀüÀ§´Â ´Ü¹æ¼º ¹ý¶û¸ð¼¼Æ÷Á¾(61.5%)¿¡ ºñÇØ Ä¡¼º°¢È­³¶
(75.0%)¿¡¼­ ¸¹¾Ò´Ù.
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¹ý¶û¸ð¼¼Æ÷Á¾(53.1%)¿¡¼­ ¸¹¾Ò´Ù.
#ÃÊ·Ï#
The purpose of this study was to obtain some informations for the radiographic
differential diagnosis between odontogenic keratocyst and unicystic ameloblastoma in the
mandible. The author compared and analysed the clinico-radiographic features of 48
cases of odontogenic keratocyst and 32 cases of unicystic ameloblastoma.
The obtained results were as follows
1. Odontogenic keratocyst and unicystic ameloblastoma occurred the most frequently in
the 2nd and 3rd decades, and both lesions occurred with slight predilection in males.
The most frequent lesional site was molar area in odontogenic keratocyst(50.0%) and
mandibular angle and ramps area in unicystic ameloblastoma(71.9%).
2. Cortical thinning and expansion were observed with similar occurrences in
odontogenic keratocyst(77.1%) and in unicystic ameloblastoma(72.9%).
3. Typical undulating lesional border was observed more frequently in odontogenic
keratocyst(79.2%) than in unicystic ameloblastoma(46.9%).
4. Well-defined lesional outline occurred more frequently in odontogenic
keratocyst(97.9%) than in unicystic ameloblastoma (53.1%).
5. Root resorption of adjacent teeth occurred more frequently in unicystic
ameloblastoma(65.2%) than in odontogenic keratocyst(18.8%) respectively, but loss of
lamina dura was frequently observed in odontogenic keratocyst(79.2%). And tooth
displacement occurred more frequently in odontogenic keratocyst(50.0%) than in unicystic
ameloblastoma(17.4%).
6. Displacement of mandibular canal occurred more frequently in odontogenic
keratocyst(75.0%) than in unicystic ameloblastoma(61.5%).
7. Inhomogeneous lesional radiolucency occurred more frequently in unicystic
ameloblastoma(53.1%) than in odontogenic keratocyst (39.6%).

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