title: Relation between size of odontogenic jaw cysts and the pressure of fluid within.
abstract: Intracystic fluid pressure may have a crucial role in the growth of odontogenic jaw cysts. In this study, we investigated the relation between the size of the cyst and the pressure of the fluid within odontogenic keratocysts, dentigerous cysts, and radicular cysts. The radiolucent area of the cyst on a panoramic radiograph was linearly related to the volume in the cavity, and the correlation coefficient (gamma) was 0.70 (n = 25, P < 0.001). Intracystic fluid pressure correlated negatively with the radiolucent area in odontogenic keratocysts (gamma = -0.76, n = 9, P = 0.02), dentigerous cysts (gamma = -0.54, n = 16, P = 0.03), and radicular cysts (gamma = -0.69, n = 10, P = 0.03). The values of [(intracystic fluid pressure (mmHg)) x (radiolucent area (cm(2)))] did not differ significantly among the three types of cyst. Intracystic fluid pressure may therefore be negatively related to the size of all three types of cyst.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan. yasu@dent.kyushu-u.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Kubota
authors.forename: T
authors.initials: T
authors.lastname: Yamashiro
authors.forename: S
authors.initials: S
authors.lastname: Oka
authors.forename: T
authors.initials: T
authors.lastname: Ninomiya
authors.forename: S
authors.initials: S
authors.lastname: Ogata
authors.forename: K
authors.initials: K
authors.lastname: Shirasuna
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D020420:Cyst Fluid / Q000502:physiology; D005260:Female; D006801:Humans; D006874:Hydrostatic Pressure; D008297:Male; D008336:Mandibular Diseases / Q000473:pathology / Q000503:physiopathology*; D008875:Middle Aged; D009807:Odontogenic Cysts / Q000473:pathology / Q000503:physiopathology*