Accuracy and Reproducibility of Facial Measurements of Digital Photographs and Wrapped Cone Beam Computed Tomography (CBCT) Photographs.

The study sought to assess whether the soft tissue facial profile measurements of direct Cone Beam Computed Tomography (CBCT) and wrapped CBCT images of non-standardized facial photographs are accurate compared to the standardized digital photographs. In this cross-sectional study, 60 patients with an age range of 18-30 years, who were indicated for CBCT, were enrolled. Two facial photographs were taken per patient: standardized and random (non-standardized). The non-standardized ones were wrapped with the CBCT images. The most used soft tissue facial profile landmarks/parameters (linear and angular) were measured on direct soft tissue three-dimensional (3D) images and on the photographs wrapped over the 3D-CBCT images, and then compared to the standardized photographs. The reliability analysis was performed using concordance correlation coefficients (CCC) and depicted graphically using Bland-Altman plots. Most of the linear and angular measurements showed high reliability (0.91 to 0.998). Nevertheless, four soft tissue measurements were unreliable; namely, posterior gonial angle (0.085 and 0.11 for wrapped and direct CBCT soft tissue, respectively), mandibular plane angle (0.006 and 0.0016 for wrapped and direct CBCT soft tissue, respectively), posterior facial height (0.63 and 0.62 for wrapped and direct CBCT soft tissue, respectively) and total soft tissue facial convexity (0.52 for both wrapped and direct CBCT soft tissue, respectively). The soft tissue facial profile measurements from either the direct 3D-CBCT images or the wrapped CBCT images of non-standardized frontal photographs were accurate, and can be used to analyze most of the soft tissue facial profile measurements.

Unusual foreign object in a tooth: A case report and review of literature.

Foreign body impactions in the tooth are common findings in the oral cavity of children because of their frequent habits of placing various objects in their mouth. The present case describes an 11-year-old boy with a foreign object in the maxillary left first molar tooth of which he was unaware. Foreign objects can not only be a source of infection but also be aspirated or ingested by the child. The discovery of foreign objects in the teeth is usually accidental. A detailed case history, consisting of a history of the ordinary placement of the object and clinical and radiographic examinations is necessary to determine the nature, size, and location of the foreign body, as well as the difficulty involved in its retrieval. The foreign object may sometimes fracture inside the tooth during exploration by the parent or child. Such an object may act as a potential source of infection and lead to complications.