Predictive Value of Dental Maturity for a Positive Gonadotropin-Releasing Hormone Stimulation Test Result in Girls with Precocious Puberty.

Dental maturity is associated with skeletal maturity, which is advanced in girls with central precocious puberty (CPP). We investigated the performance of dental maturity as a screening method for CPP using mandibular second premolar and molar calcification stages, assessed the associated anthropometric and laboratory factors, and evaluated pubertal response predictors using the gonadotropin-releasing hormone stimulation test (GnRHST) in prepubertal and pubertal girls. A prospective case-control study was conducted in girls, aged 7.

Visual Loss After Intraoral Local Anesthesia for the Removal of Circumzygomatic and Circum-Mandibular Wires: A Case Report.

Many types of complications occur after intraoral local anesthesia; however, visual loss is a rare one. There have been only a few case reports of visual disturbance after intraoral local anesthesia. A 67-year-old man with systemic hypertension complained of visual disturbance after a dental local injection for circumzygomatic and circum-mandibular wire removal.

Determination of midsagittal plane for evaluation of facial asymmetry using three-dimensional computed tomography.

Purpose: The aim of the present study was to investigate the disagreement of cephalometric analysis depending on the reference determination of midsagittal plane on three-dimensional computed tomography.

Materials And Methods: A total of 102 young women with class III dentofacial deformity were evaluated using three-dimensional computed tomography. The cranial and facial midsagittal planes were defined and the amounts of jaw deviation were calculated.

Fractal analysis of mandibular trabecular bone: optimal tile sizes for the tile counting method.

Purpose: This study was performed to determine the optimal tile size for the fractal dimension of the mandibular trabecular bone using a tile counting method.

Materials And Methods: Digital intraoral radiographic images were obtained at the mandibular angle, molar, premolar, and incisor regions of 29 human dry mandibles. After preprocessing, the parameters representing morphometric characteristics of the trabecular bone were calculated.

Quantitative localization of impacted mesiodens using panoramic and periapical radiographs.

Purpose: The purpose of this study was to evaluate a new technique for localizing impacted mesiodens using its horizontal magnification ratio on panoramic radiographs.

Materials And Methods: Location-magnification equation of a panoramic equipment was obtained from horizontal magnification ratio of a metal ball which was located variable positions from the center of image layer at interval of 2 mm. Panoramic radiographs were obtained from a skull phantom with a metal ball which was a substitute for impacted mesiodens and was embedded 10mm(Group 1), 15mm(Group 2), and 20mm(Group 3) posterior to the central incisor.