title: Investigation of the effect of movement and irrigation systems on temperature in the conventional drilling of cortical bone.
abstract: We have compared the results of the external irrigation technique with those of a double irrigation technique with continuous intermittent movement. Maximum thermal measurements were made in the cortical part of 10 samples of bovine ribs during osteotomy to simulate the preparation of a surgical bed for the installation of dental implants at a depth of 10 mm. Twenty specimens were drilled for each group: external irrigation and continuous movement (control group 1, CG1); external irrigation and intermittent movement (control group 2, CG2); double irrigation and continuous movement (test group 1, TG1); and double irrigation and intermittent movement (test group 2, TG2). The double irrigation technique gave significantly better results regardless of the drilling movement used. Thermal increases between samples was 19.2% in group CG1, 10.4% in CG2, 5.4% in TG1, and 3.4% in TG2. The double irrigation technique produced a significantly smaller increase in temperature in the cortical bone during both types of drilling (p=0.001), which illustrated its greater efficiency compared with that of the external irrigation technique.
authors: Professor of Catholic University of Uruguay, Montevideo, Uruguay. Electronic address: sergio.gehrke@hotmail.com.
authors: Sergio Alexandre
authors: SA
authors: Gehrke
authors: Henrique
authors: H
authors: Loffredo Neto
authors: Fábio E C
authors: FE
authors: Mardegan
mesh_terms: D000818:Animals; D001831:Body Temperature / Q000502:physiology*; D001842:Bone and Bones / Q000502:physiology* / Q000601:surgery; D002417:Cattle; D003758:Dental Implantation, Endosseous / Q000295:instrumentation / Q000379:methods; D008422:Materials Testing; D010027:Osteotomy / Q000379:methods*; D012272:Ribs / Q000601:surgery; D007507:Therapeutic Irrigation / Q000379:methods*; D013821:Thermometers; D019415:Torque
keywords: Bone surgery; Dental implants; Irrigation; Osteotomy; Thermocouple