Cysts gnathic - pathological cavitary formation of a dontogenous parentage.

Etiology, pathogenesis. The root cyst develops from epithelial elements under influence of irritating influences of the center of an inflammation in a periodontium. A parentage of a follicular cyst bind to a degeneration of tissues of a dental follicle. Clinic. Current of cysts of jaws in the beginning asymptomatic. In process of development the spherical painless diverticulum, a thinning of an osteal wall of a cyst is formed. On the roentgenogram precisely outlined spherical cavity is taped; at a root cyst - a root of a tooth with the amazed periodontium, and at follicular - not cut tooth (or a coronal part of a tooth), shipped in defect of a bone. At an empyema of cyst there are signs, characteristic for an acute dontogenous osteomyelitis. Treatment operative - vesicotomy and a cystectomy. In some cases root cysts treat conservatively. The festered cysts demand urgent treatment - opening of a cyst and a drainage of its cavity.

The forecast in most cases favorable. Greater cysts of a mandible can become complicated pathological fracture.

Prophylaxis of root cysts - modern treatment of an apical periodontitis.