Functional Removable Prosthetic Rehabilitation Using the Electronic Condylograph: A Case Report

This article describes the design of complete removable prostheses following the Slavicek philosophy, which involves the integration between condylographic data and an individual cephalometric study of the patient. The electronic condylograph is a device that records the mandibular movements made by the patient. This case report shows how condylography data are useful not only in the individual articulator setting, but also for diagnostic completion and for planning a functional prosthetic rehabilitation.

Determination of normative cephalometric parameters according to the Downs method for Ukrainian young men and young women with different face types

Orthodontics is a rapidly evolving branch of dentistry in both theoretical and practical areas. Modern instrumental research methods used in it organically coexist with the already classical ones, perfectly complementing each other. It is such a classic method that is actively used in the practice of orthodontics is cephalometric analysis, which nevertheless requires updates over time and the emergence of new scientific data. The aim of the study was to establish the limits of percentile range and features of cephalometric parameters according to the Downs method in Ukrainian young men and young women with orthognathic occlusion depending on the type of face. 49 young men and 76 young women with orthognathic occlusion underwent a cephalometric study using the Downs method in OnyxCeph³™ software, 3DPro version, Image Instruments GmbH, Germany (license № URSQ-1799). The division into facial types was performed using the Garson index. The licensed statistical package "Statistica 6.0" using non-parametric assessment methods analyzed the second (characteristics of the jaws by the method of Downs) and the third (indicators by the method of Downs that characterize the position of the teeth) groups of indicators. Studies have shown that most of the reliable or tendencies of differences in cephalometric parameters by the method of Downs in both young men and young women (more pronounced) with orthognathic occlusion, between different types of faces belong to the second group of indicators (dental characteristics of which surgical methods you can change the length, width, angles and positions of the upper and lower jaws). Manifestations of sexual dimorphism of cephalometric parameters by the method of Downs between young men and young women with appropriate facial types are insignificant and also, in almost all cases, belong to the second group of indicators. The established limits of percentile scope and features of cephalometric parameters according to the Downs method in Ukrainian young men and young women with orthognathic occlusion depending on the type of face will improve the existing methods of treatment of dental patients.

Transversal craniofacial development between skeletal maturation stages: A multi-center posteroanterior cephalometric study

Objectives: The aim of this study is to evaluate the dentofacial transversal norms according to the stages of skeletal maturation in growing Turkish individuals and to determine differences between the genders. Materials and Methods: In our multi-centered, cross-sectional retrospective study, in which transversal measurements were made according to skeletal maturation stages (SMSs), posteroanterior radiographs of 572 individuals (292 female, 280 male) with skeletal and dental Class I relationships and good occlusion were examined at the age range of 7–18 years. SMSs were determined using Björk, Grave and Brown hand-wrist radiography. A linear regression model was used for changes of transversal measurements between SMSs, and t-test was used to determine transverse changes between the genders. Results: There was no statistically significant difference between females and males in cranial, facial, and nasal width values up to SMS 5. In maxillary, mandibular, maxillary intermolar, and mandibular intermolar width measurements, males had higher values in most stages of skeletal maturation compared to females. Apart from nasal width and maxillomandibular ratio values in females, the regression model in which transversal measurements were dependent variables, and SMS were independent variables was found to be significant. According to cumulative growth percentages, the growth completion in transversal measurements occurred earlier in females. Conclusion: Transversal measurements determined according to the stages of skeletal maturation can be a guide for orthodontists in the clinic to determine values that deviate from normal.

Analysis of Residual Ridge Morphology in a Group of Edentulous Patients Seeking NHS Dental Implant Provision—A Retrospective Observational Lateral Cephalometric Study

A convenience sample of 154 edentulous patients referred for implant provision at a Regional National Health Service Dental Hospital in the North West of England were identified. The cephalometric radiographs that were taken as part of the patient baseline investigation were assessed. Digital tracing was used to measure the anterior maxillary and mandibular bone height and ridge angle with respect to the maxillary and mandibular planes. The mean height of the bone in the maxilla was found to be 14 mm, and the mean ridge angle for the anterior maxillary residual ridge is 104°. The mean height of bone in the mandible was 18 mm, while the mean ridge angle for the anterior mandibular residual ridge was 77°. Using the Cawood and Howell classification demonstrated that class VI mandibles were the most common. The cross-sectional shape of the mandible varied, with the triangular shape most common. Although there was adequate bone stock for implant placement in these cases, the mandibular residual ridge resorption presents a lingual inclination to the residual bone. The limited residual ridge position and inclination would dictate that conventional implant placement could be challenging.