Developmentally absent permanent maxillary lateral incisors may be associated with several problems. The decision whether to open or to close the space should involve the patient/parent, orthodontist and restorative dentist. To optimize function and aesthetics, space should be opened using fixed appliances to accommodate an appropriate prosthesis. Implant-retained crowns offer several advantages, although adhesive bridges are more appropriate in certain circumstances. Removable partial dentures may be necessary in some instances. Where space opening is not feasible, practical or desirable, any residual spacing can be closed using fixed appliances and the permanent maxillary canines modified to resemble lateral incisors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.12968/denu.2005.32.1.16 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Circular Polymer Designed by Regulating Entropy: Spiro-Valerolactone-Based Polyesters with High Gas Barriers and Adhesion Strength.
J Am Chem Soc
January 2025
Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States.
Enthalpy is often the focal point when designing monomers for polymer circularity, but much less is explored on how entropy can be exploited to create polymers with synergistic circularity and properties. Here, we design a series of spiro-lactones (SLs) with closed-chain cycloalk(en)yl substituents at the α,α-position of δ-valerolactone (δVL), which, when combined with the parent δVL and -α,α-dialkyl-substituted δVL with open-chain alkyl groups, provide a desired platform for exploring the circular polymer design by focusing on the entropy change of polymerization. These SLs exhibit finely balanced (de)polymerizability that is regulated chiefly by entropy differentiation, allowing both the facile synthesis of polyester PSLs ( up to 1000 kg mol) in a living fashion and selective depolymerization of the PSLs to completely recover monomers under mild conditions (using a recyclable catalyst at 100 °C).
View Article and Find Full Text PDFNexus: A versatile console for advanced low-field MRI.
Magn Reson Med
January 2025
Department 8.1 - Biomedical Magnetic Resonance, Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany.
Purpose: To develop a low-cost, high-performance, versatile, open-source console for low-field MRI applications that can integrate a multitude of different auxiliary sensors.
Methods: A new MR console was realized with four transmission and eight reception channels. The interface cards for signal transmission and reception are installed in PCI Express slots, allowing console integration in a commercial PC rack.
From impact metrics and open science to communicating research: Journalists' awareness of academic controversies.
PLoS One
January 2025
College of Medicine, University of Illinois Chicago, Chicago, IL, United States of America.
This study sheds light on how journalists respond to evolving debates within academia around topics including research integrity, improper use of metrics to measure research quality and impact, and the risks and benefits of the open science movement. It does so through a codebook thematic analysis of semi-structured interviews with 19 health and science journalists from the Global North. We find that journalists' perceptions of these academic controversies vary widely, with some displaying a highly critical and nuanced understanding and others presenting a more limited awareness.
View Article and Find Full Text PDFDo patients with fibromyalgia syndrome and healthy people differ in their opinions on placebo effects in routine medical care?
Pain Pract
February 2025
Health, Medical and Neuropsychology Unit, Faculty of Social and Behavioural Sciences, Leiden University, Leiden, The Netherlands.
Objectives: Placebo effects can relieve acute and chronic pain in both research and clinical treatments by learning mechanisms. However, the application of placebo-based treatment strategies in routine medical care is questioned. The current study investigated the opinions of patients with fibromyalgia and healthy controls regarding learning of placebo effects and their practical applications.
View Article and Find Full Text PDFThe Presence of a Shelter in an Open Field Test Has Differential Effects on the Behavior and Stress Response of Two Mouse Species.
J Exp Zool A Ecol Integr Physiol
January 2025
Departamento de Biologia, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.
The open field test (OFT) is frequently used in research to assess anxiety-like behavior and locomotor activity. Its simple design can lead to the misconception that it is a standardized procedure comparable between laboratories. However, some modifications in the setup can cause changes in behavior.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!