Effect of implant diameter and cantilever length on the marginal bone height changes and stability of implants supporting screw retained prostheses: A randomized double blinded control trial.

Purpose: This randomized controlled trial aimed to evaluate the effect of implants' two different diameters and cantilever lengths on the marginal bone loss and stability of mplants supporting maxillary prostheses.

Materials And Methods: Ninety-six implants were placed in sixteen completely edentulous maxillary ridges. Patients were randomly divided into two groups: Group A, implants were placed with a cantilever to anterior-posterior AP spread length (CL:AP) at a ratio of 1:3; Group B, implants were placed with a CL:AP at a ratio of 1:2.

3D Registration Accuracy of a Novel Marker-Free Technique for Double-Scan Protocol.

Purpose: The aim of this retrospective study was to introduce a novel technique of a double-scan protocol with markerfree registration and compare it to the already-used techniques regarding the accuracy of registration.

Materials And Methods: Fifty-nine fully edentulous patients underwent double-scan procedures by three different methods: the barium sulfate method for 11 patients; the gutta-percha method for 26 patients; and the marker-free method for 22 patients. Point-to-point registration of the two scans was followed by a voxel-based surface "best fit" registration.

Removal of large impacted foreign body from the base of the skull through submandibular access: A multidisciplinary approach.

Introduction: This report describes the removal of a missed impacted large piece of a glass that reaches the infra-temporal region after a traumatic injury at the submandibular area.

Case Presentation: A nine year-old patient presented with a limited mouth opening (0.5 cm).