The multidisciplinary team studied the long-term effects of both orthodontic treatment and lack of treatment when a need had been identified in childhood, in a paper published in The British Journal of Health Psychology (January 22 2007).
Over a thousand 11-12 year olds were recruited to the project in Cardiff in 1981, and their dental health and psycho-social well-being assessed. They were re-assessed in 1984 and 1989 and finally in 2001, then aged 31-32.
Professor William Shaw of The University of Manchester, himself an orthodontist, said: “We revisited 337 of our original sample as adults, and those who had been assessed as needing orthodontic treatment in 1981 and received it had straighter teeth and were more likely to be satisfied with them.
“However orthodontic treatment, in the form of braces placed on children’s teeth in childhood, had little positive impact on their psychological health and quality of life in adulthood.
“Further, a lack of orthodontic treatment in childhood did not lead to psychological difficulties in later life for those children where a need was identified but no treatment received.
“It can be concluded that, although in general participants’ self-esteem increased over the 20-year period, it was not as a result of receiving braces and didn’t relate to whether an orthodontic treatment need existed in 1981. This runs contrary to the widespread belief among dentists that orthodontic treatment improves psychological well-being, for which there is very little evidence.”
The team, which included academics from the University of Roehampton (London) and Cardiff University’s Dental School, also concluded that the health or attractiveness of a person’s teeth is a minor factor in determining their psychological well-being in adulthood.
Fellow researcher and psychologist Dr Pamela Kenealy of Roehampton said: “Teeth are important to an individual’s self-perception during adolescence, but by adulthood other factors have greater significance. So while it may make a minor contribution to an individual’s perception of self-worth, orthodontics cannot be justified on psychological grounds alone.”
Jon Keighren | alfa
Biofilm discovery suggests new way to prevent dangerous infections
23.05.2017 | University of Texas at Austin
Another reason to exercise: Burning bone fat -- a key to better bone health
19.05.2017 | University of North Carolina Health Care
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy