Statement Of The Problem: The outline shapes of the dental arch, face, and tooth are esthetic factors used to determine the proper form of artificial teeth when selected for artificial prostheses.
Purpose: The purpose of this study was to investigate the quantitative relationships between the outlines of the face, the maxillary central incisor, and the maxillary arch by using Fourier analysis.
Material And Methods: Frontal facial photographs and irreversible hydrocolloid impressions of the maxilla were obtained from 200 young, dentate individuals (100 men, 100 women) ages 22 to 28 years. On the resultant casts, standardized photographs were made for the dental arch and the maxillary central incisor. The outlines of the face, dental arch, and tooth were digitally traced and the digitized curved outlines were converted into X-Y coordinates with special software, which, in turn, were imported into Fourier Shape Descriptor software for harmonic analysis. The quantitative outputs of Fourier analyses were analyzed and tested with statistical software to investigate the differences across the shapes of the 3 outlines under study.
Results: Facial and tooth outlines were similar for each sex, although the similarity was stronger among the men. By contrast, no relationship was found between tooth and maxillary arch outlines or between face and maxillary arch outlines.
Conclusions: Face and tooth forms were quantitatively related. Therefore, face form may reliably guide the selection of artificial anterior tooth form in complete denture prostheses or any complex anterior restorations.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.prosdent.2014.08.009 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Addressing the concept of total pain in palliative care: A postcolonial South African hospice view.
Palliat Support Care
January 2025
Department of Psychology, Stellenbosch University, Stellenbosch, South Africa.
Objectives: Palliative care, which was formally established in the Global North, is now recognized globally as part of health care. As part of a larger study, we were interested in how decision-makers at a leading hospice in South Africa understood the changing local context and its influence on the delivery of services. We were interested in how the concept of "total pain," as outlined by Saunders, applies in a very unequal and under-resourced society in the shadow of a long, oppressive colonial, and apartheid past.
View Article and Find Full Text PDFA grounded theory study on medical students' proxy online health information seeking behavior.
BMC Public Health
January 2025
Department of Psychiatry, Renmin Hospital of Wuhan University, No. 6 of Gaoxin Road, East Lake High-tech Development Zone, Wuhan, Wuhan City, 430060, Hubei Province, China.
Background: Although Internet has become the main way of access to health and medical information for most young people today, it might not be the case with older people. The elderly that have difficulty using the Internet rely largely on their family members to obtain and evaluate online health and medical information.
Objective: The purpose of this study is to investigate medical students' proxy health information seeking behavior for their family members, and to look into how they search, evaluate, and even apply health information from the Internet.
Examining Mammalian facial behavior using Facial Action Coding Systems (FACS) and combinatorics.
PLoS One
January 2025
Department of Psychology, Lyon College, Batesville, Arkansas, United States of America.
There has been an increased interest in standardized approaches to coding facial movement in mammals. Such approaches include Facial Action Coding Systems (FACS), where individuals are trained to identify discrete facial muscle movements that combine to create a facial configuration. Some studies have utilized FACS to analyze facial signaling, recording the quantity of morphologically distinct facial signals a species can generate.
View Article and Find Full Text PDFSetting up a transgender-friendly service in a tertiary care hospital: The challenges and solutions.
Indian J Psychiatry
December 2024
Consultant Endocrinologist, Tata Main Hospital, Jamshedpur, India.
Transgender and gender diverse (TGD) individuals face significant barriers to healthcare, necessitating the development of TGD-friendly medical services. In India, healthcare systems have only recently begun addressing the unique needs of TGD individuals, particularly with the advent of the Transgender Persons Act 2019. This article outlines the establishment of a comprehensive TGD clinic within a multidisciplinary framework.
View Article and Find Full Text PDFMicrofluidics for morpholomics and spatial omics applications.
Lab Chip
January 2025
Mechanobiology Institute, National University of Singapore, Singapore, 117411 Singapore.
Creative designs, precise fluidic manipulation, and automation have supported the development of microfluidics for single-cell applications. Together with the advancements in detection technologies and artificial intelligence (AI), microfluidic-assisted platforms have been increasingly used for new modalities of single-cell investigations and in spatial omics applications. This review explores the use of microfluidic technologies for morpholomics and spatial omics with a focus on single-cell and tissue characterization.
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!