Visibility of alveolar bone thicknesses on CBCT images-a study on minimum bone requirements using various reconstruction techniques, viewing modes, and resolutions.

Objectives: To evaluate at which thickness marginal bone becomes visible to the observer on cone-beam computed tomography (CBCT) images and how reconstruction technique and viewing mode affect assessment.

Materials And Methods: Fourteen anterior teeth from six human mandibles were examined with two CBCT resolution protocols: standard- and high-resolution. Distance from the cementoenamel junction to the visible marginal bone level (MBL) was measured in three groups of reconstructed CBCT images: multiplanar reformation (MPR) with grey scale, MPR with inverted grey scale, and 3D rendering.

Assessment of thin bony structures using cone-beam computed tomography.

Objectives: To investigate the validity and reliability of marginal bone level measurements on cone-beam computed tomography (CBCT) images of thin bony structures using various reconstruction techniques, two image resolutions, and two viewing modes.

Materials And Methods: CBCT and histologic measurements of the buccal and lingual aspects of 16 anterior mandibular teeth from 6 human specimens were compared. Multiplanar (MPR) and three-dimensional (3D) reconstructions, standard and high resolutions, and gray scale and inverted gray scale viewing modes were assessed.

Ridge preservation using Collacone compared with an empty socket: a pilot study.

Objectives: The objective of this study was to evaluate the dimensional changes in alveolar bone and soft tissue after dental extraction/postextraction in alveoli filled/grafted with collagen (Collacone) compared with those left empty/ungrafted.

Study Design: Twenty-three patients with a single maxillary incisor to be extracted were included in the study. The patients were randomized into either the treatment group, receiving a collagen sponge, or into the control group with an empty alveolus.