综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

   

Straighter teeth won't guarantee happiness

(Reuters)
Updated: 2007-01-30 10:59


A girl shows her braces in an undated file photo. Straightening children's crooked teeth with braces may improve their smile but it is no guarantee of happiness and improved self esteem. [Reuters]

LONDON - Straightening children's crooked teeth with braces may improve their smile but it is no guarantee of happiness and improved self esteem.

A 20-year study by scientists in Britain that looked at the impact of braces on more than 300 children in Wales showed that having straighter teeth had little positive impact on their psychological health later in life.

When they were questioned as adults, none of them regretted having had their teeth improved and most were satisfied with the way they looked. But there was no difference in their psychological wellbeing when compared to other people who have never had braces.

"On the basis of our research if there are irregularities, and especially if they are not severe, then there will be no harm to dental health and it wouldn't change their life happiness in the future if they don't wear braces," said Professor William Shaw, an orthodontist at the University of Manchester in England.

Each year countless children around the globe receive orthodontic treatment to align their teeth or correct other irregularities.

Parents can spend a small fortune on their children's dental work. In Britain and other countries braces can cost 2,000 pounds ($3,915) or more depending on the severity of the problem.

Shaw and his team had assumed that there would be some social or psychological benefit for the children who had their teeth straightened in 1981. But when they gave them a battery of standard psychological questions 20 years later to assess their well-being, the researchers found nothing that seems to have been derived from having orthodontic treatment.

All the people questioned in the study published in the British Journal of Health Psychology had quite significant dental irregularities and had received braces free through Britain's state-funded National Health Service (NHS).

"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 orthodontist treatment need existed in 1981," Shaw told Reuters.

Dr Pamela Kenealy, a psychologist at the University of Roehampton in London who worked on the study, said the importance of having the perfect smile changes as people age.

"Teeth are important to an individual's self-perception during adolescence, but by adulthood other factors have greater significance," she said in a statement. "So while it may make a minor contribution to an individual's perception of self-worth, orthodontics cannot be justified on psychological grounds alone."



Top World News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
禹城市| 邹城市| 盖州市| 大洼县| 巴塘县| 许昌市| 宁河县| 泗阳县| 东源县| 健康| 台州市| 阜新市| 桦南县| 奇台县| 叶城县| 绿春县| 抚州市| 溧水县| 隆尧县| 云龙县| 历史| 当涂县| 上杭县| 大理市| 昭苏县| 延川县| 阳城县| 固始县| 奉贤区| 合作市| 射洪县| 古交市| 巩义市| 米泉市| 乐清市| 南汇区| 稷山县| 赫章县| 贵南县| 普宁市| 邢台市|