 Hello, everyone. Welcome back to a new session on dentistry and more today. We have or endogenic character assist or okc to learn So we covered Radical assist and dentistry assist in our last sessions So the third one is or endogenic character assist. It is a benign which is not very common one and which is a locally aggressive type of Sist now, let's get into the details of okc As a name suggests it is a tooth related Sist and which has a keratin deposition That's why it's got or endogenic keratocyst It's originated from dental lamina remnants in mantibul and maxilla Or it could be extension of basal cells of overlying epithelium So either dental lamina it forms from dental lamina or from the basal cell of overlying epithelium Moving on to the histopathology The epithelium lining is uniformly thin maybe 8 to 10 cell is The basal layer is palisaded nuclear is polarized and intensely stained Luminous cells has para keratin is and corrugated profile and there will be micro cyst formation So uniform epithelial lining palisaded basal air polarized and highly stained nuclei para keratin is tan corrugated Luminous epithelial cells and micro cyst formation in clinical features It commonly seen in second to third decade or it can affect to any age group especially adults people And Mantibular molar area that is a posterior border is most commonly affected Well coming to the radiographic features it has smooth oval shape and the cortical border If a cortical border is well defined if not second truly infected and this radiolusin lations in some cases There will be multi-locular appearances mostly it will be radio Lusin lations some cases will be the bone septa Will be giving a multi-locular appearances and there will be keratin Presence in the cyst So that is why it is getting Keratocyst name. So what is the effect on surrounding structures? So when it grows along the internal aspect of joe with minimal expansion, but sometimes Upper ramus and coronoid process It shows expansion and it displaces and resorbed teeth with But the degree of her displacement and resorption is not as severe as dentigerus cyst So dentigerus cyst the displacement and resorption of the adjacent is is more compared to the okc Inferior alveolar canal may may be displaced Inferiorly because of the compression or the pressure it applies and it occupies the maxillary Anthrom if it affects a maxillary if the cyst is in the maxillary region it occupies a maxillary Anthrom region Most commonly the differential diagnosis is dentigerus cyst amyloblastoma or Odendogenic mixoma Treatment can be done using wide surgical excision to avoid recurrence or Masopilization also can be applied. So Odendogenic keratocyst is not very detailed one. It is a The benign Error cyst which is locally aggressive seen in the posterior Mantibular area most commonly and Which has keratin? Deposits in the cyst. So that's all about okc or Odendogenic keratocyst. I'll come up with a new topic in oral pathology. Thank you