Incidence and Management of Fractured Dental Implants: Case Reports.

The fracture of dental implants is a rare occurrence in clinical settings. Possible causes of implant fracture include design or production flaws, overloaded occlusion force, implant location, metal fatigue, and bone resorption around the implant. This study reports on the successful removal and reimplantation of fractured implants.

Estimation of optimal pediatric chest compression depth by using computed tomography.

Objective: This study aimed to compare the optimal chest compression depth for infants and children with that of adults when the simulated compression depth was delivered according to the current guidelines.

Methods: A total of 467 consecutive chest computed tomography scans (93 infants, 110 children, and 264 adults) were reviewed. The anteroposterior diameter and compressible diameter (CD) for infants and children were measured at the inter-nipple level and at the mid-lower half of the spine for adults.

Histomorphometric Analysis of Contaminated Autogenous Tooth Graft Materials After Various Sterilization.

Purpose: The purpose of this study was to evaluate histomorphometrically contaminated autogenous tooth graft materials, which were resterilized.

Materials And Methods: The intentional defects (diameter: 8 mm, depth: 4 mm) were formed around implant fixture on the iliac crest of 6 mongrel dogs. Autogenous tooth graft materials were made by extracted premolars.