Background and Aim: Space maintenance is an important process in the mixed dentition as a preventive measure for multiple malocclusion problems related to the loss of arch length. The awareness of parents and the satisfaction of children are two critical factors determining the efficacy of space maintainers. The aim of this study was to as-sess the level of parents’ awareness of space maintaine...

The James Webb Space Telescope (JWST) is the successor to the Hubble and Spitzer Space Telescopes. It has a broad scientific mission which includes spectroscopic studies of the epoch of reionization through observations of z > 8 quasars. The Spitzer warm mission provides a unique opportunity to conduct an infrared survey of several hundred square degrees to a depth of several micro-Janskys, cap...

This paper describes an appliance to replace prematurely lost maxillary anterior teeth. A review of the literature is given. The prosthesis is different from previous appliances in its use of intraorally placed composite-filled celluloid crown forms. This allows for superior control of both esthetics and functional occlusal relationships. A case presentation is given describing laboratory and o...

Several studies have shown that handedness has an impact on visual spatial abilities. Here we investigated the effect of laterality on auditory space perception. Participants (33 right-handers, 20 left-handers) completed two tasks of sound localization. In a dark, anechoic, and sound-proof room, sound stimuli (broadband noise) were presented via 21 loudspeakers mounted horizontally (from 80 deg...

All patients expect a beautiful smile at the completion of orthodontic treatment, but some patients show concern regarding their appearance while undergoing treatment. The appearance of a gap from a missing tooth can be a concern, especially if it is in the display zone of a patient's smile. If the treatment plan includes prosthetic replacement of the missing tooth rather then space closure, th...

Introduction: Space maintenance in primary dentition in patients with early loss of several primary molars is a clinical challenge for pedodontists. In these cases, the conventional distal shoe appliance cannot be used and the efficacy of removable appliances is questionable. Thus, appliances with special designs providing increased patient acceptance and optimal efficacy are required in these ...