Definition of New Three-Dimensional Cephalometric Analysis of Maxillomandibular Sagittal Relationship for Orthodontics and Orthognathic Surgery: Normative Data Based on 700 CBCT Scans.

The objective of the study was to define the norm of new 3-dimensional cephalometric analysis of maxillomandibular sagittal relationship with the patient in Natural Head Position. A cross-sectional study was performed using 700 consecutives cone beam computed tomography datasets of pre-orthodontic patients received for three-dimensional craniofacial analysis. To stablish the clinical norm of the new sagittal reference (linear distance A-B), the correlation with the gold standard (ANB angle) was estimated with the Pearson's correlation coefficient.

Factors Affecting Implant Failure and Marginal Bone Loss of Implants Placed by Post-Graduate Students: A 1-Year Prospective Cohort Study.

Statement Of The Problem: Most of the clinical documentation of implant success and survival published in the literature have been issued by either experienced teams from university settings involving strict patient selection criteria or from seasoned private practitioners. By contrast, studies focusing on implants placed and rehabilitated by inexperienced post-graduate students are scarce.

Purpose: To record failure rates and identify the contributing factors to implant failure and marginal bone loss (MBL) of implants placed and rehabilitated by inexperienced post-graduate students at the one-year follow-up.

Rehabilitation of the severely atrophic maxilla using LeFort I maxillary advancement and simultaneous zygoma implant placement: Proof of concept.

Purpose: To illustrate the workflow for simultaneous LeFort I maxillary advancement and zygomatic implant (ZI) placement.

Materials And Methods: Three consecutive patients referred for the rehabilitation of the severely atrophic maxilla were treated with simultaneous LeFort I maxillary advancement and ZI placement. An evaluation of the treatment protocol was carried out to validate the proposed workflow: indications, treatment planning, surgical splint manufacturing, surgical procedure and prosthetic loading.

Semi-Automated Three-Dimensional Condylar Reconstruction.

The objective was to validate a semi-automated segmentation method for 3-dimensional (3D) reconstruction of the mandibular condyle from cone beam computed tomography (CBCT) data and illustrate its application in volumetric analysis of the condyle.Ten CBCT datasets were used to validate the proposed semi-automatic method for 3D rendering of mandibular condyles. First, a standardized orientation protocol of the skull was applied.

Cranial Base Superimposition of Cone-Beam Computed Tomography Images: A Voxel-Based Protocol Validation.

Objectives: The primary objective of the present study was to find the gold-standard accuracy of voxel-based superimposition of cone-beam computed tomography (CBCT) datasets with a protocol developed for the Dolphin Imaging 3D software. The secondary objectives were to analyze reproducibility and efficiency of this protocol.

Study Design: Twenty-five CBCT datasets of patients with dental implants present were selected.