Study Notes

Keloids 1. Characterized by a progressively enlarging scar. 2. Caused by an abnormal accumulation of collagen at the site of injury. 3. More common in African-Americans.…

CASTING DEFECTS Classification : 1) Distortion. 2) Surface roughness . 3) Porosity . 4)Incomplete casting . 5) Oxidation . 6) Sulfur contamination . Distortion It is usually due to the distortion of wax pattern. To avoid this : Manipulation of the wax at its softening temp Invest the pattern at the earliest . If storage is necessary store it in a refrigerator . Surface roughness May be due to : Air bubbles on the wax pattern . Cracks due t…

Odontogenic Keratocyst (OKC) The odontogenic keratocyst (OKC) is a unique and aggressive cystic lesion of the jaw with distinct histological features and a high recurrence rate. Below is a comprehensive overview of its characteristics, treatment options, and prognosis. Characteristics of Odontogenic Keratocyst Definition and Origin: The term "odontogenic keratocyst" was first introduced by Philipsen in 1956. It is believed to origi…

Neomycin used as a topical preparation Neomycin is not absorbed from the gastrointestinal tract, and has been used as a preventative measure for hepatic encephalopathy and hypercholesterolemia. By killing bacteria in the intestinal tract, it keeps ammonia levels low and prevents hepatic encephalopathy, especially prior to GI surgery. It is not given intravenously, as neomycin is extremely nephrotoxic (it causes kidney damage), especially compared to other amin…