学龄前儿童全口龋齿的手术治疗

美国——在西雅图儿童医院儿童牙科中心的外科侧楼里，两岁半的Devon Koester上个月在他母亲的怀中静止不动，麻醉师用泡泡糖香味的面罩遮住他的面部，将其麻醉。医生随后拍摄X-线片，显示20颗乳牙中有11颗已经龋坏。然后，他的儿童牙医拔出两颗切牙，在1颗磨牙上进行根管治疗，其他牙齿进行充填治疗和冠修复。

在5年前的一项研究中，疾病控制和预防中心注意到患有龋齿的学龄前儿童增长数字在40年里列于首位。但是美国牙医表示他们看到各个收入水平的学龄前儿童患有6-10颗或更多龋齿的数量都有所增加。他们还表示，龋坏水平十分严重，以至于他们经常会建议使用全身麻醉，因为儿童不可能在清醒时坐下来接受如此大范围的治疗。

Preschoolers in Surgery for a Mouthful of Cavities

SEATTLE — In the surgical wing of the Center for Pediatric Dentistry at Seattle Children’s Hospital, Devon Koester, 2 ½ years old, was resting last month in his mother’s arms as an anesthesiologist held a bubble-gum-scented mask over his face to put him under. The doctors then took X-rays, which showed that 11 of his 20 baby teeth had cavities. Then his pediatric dentist extracted two incisors, performed a root canal on a molar, and gave the rest fillings and crowns.

Devon’s mother, Melody Koester, a homemaker from Stanwood, Wash., and her husband, Matthew, an information technology manager, said they began worrying about brushing Devon’s teeth only after Mrs. Koester noticed they were discolored when he was 18 months old. “I had a lot on my mind, and brushing his teeth was an extra thing I didn’t think about at night,” she said.

The number of preschoolers requiring extensive dental work suggests that many other parents make the same mistake. The Centers for Disease Control and Prevention noted an increase, the first in 40 years, in the number of preschoolers with cavities in a study five years ago. But dentists nationwide say they are seeing more preschoolers at all income levels with 6 to 10 cavities or more. The level of decay, they added, is so severe that they often recommend using general anesthesia because young children are unlikely to sit through such extensive procedures while they are awake.

There is no central clearinghouse for data on the number of young children undergoing general anesthesia to treat multiple cavities, but interviews with 20 dentists and others in the field of dental surgery suggest that the problem is widespread.

“We have had a huge increase in kids going to the operating room,” said Dr. Jonathan Shenkin, a pediatric dentist in Augusta, Me., and a spokesman for the American Dental Association. “We’re treating more kids more aggressively earlier.”

But such operations are largely preventable, he said. “I have parents tell me all the time, ‘No one told us when to go to the dentist, when we should start using fluoride toothpaste’ — all this basic information to combat the No. 1 chronic disease in children.”

Dentists offer a number of reasons so many preschoolers suffer from such extensive dental decay. Though they are not necessarily new, they have combined to create a growing problem: endless snacking and juice or other sweet drinks at bedtime, parents who choose bottled water rather than fluoridated tap water for their children, and a lack of awareness that infants should, according to pediatric experts, visit a dentist by age 1 to be assessed for future cavity risk, even though they may have only a few teeth.

And because some toddlers dislike tooth-brushing, some parents do not enforce it. “Let’s say a child is 1 ½, and the child screams when they get their teeth cleaned,” said Dr. Jed Best, a pediatric dentist in Manhattan. “Some parents say, ‘I don’t want my little darling to be traumatized.’ The metaphor I give them is, ‘I’d much rather have a kid cry with a soft toothbrush than when I have to drill a cavity.’ ”

Dental decay often starts with a dull ache that may be mistaken for teething. That is why parents do not realize their child’s teeth are infected until they break or the pain becomes so acute that the child cannot sleep, said Dr. Joel Berg, director of the Center for Pediatric Dentistry, a joint venture since 2010 between the University of Washington and Seattle Children’s Hospital, which built a surgical wing because of the demand for oral surgery for preschoolers.

With a cooperative child, a cavity — or even many — can be treated in a dentist’s office with an injection of local anesthesia and an episode of “The Backyardigans” to distract patients.

But dentists routinely recommend general anesthesia for preschoolers with extensive problems, particularly if they will not even let X-rays be taken. The cost to parents for dental restoration under general anesthesia for a child ranges from $2,000 to $5,000 or more, depending on insurance coverage and the amount of work, several dentists said.

Dr. Megann Smiley, a dentist-anesthesiologist at Nationwide Children’s Hospital in Columbus, Ohio, is used to hearing parents question the need for general anesthesia to fix their children’s infected teeth. “It seems like putting a match out with a fire hydrant,” Dr. Smiley said. “But if any of us tried to get 12 teeth treated, we wouldn’t think that’s small.”

The dental surgery center at Nationwide has three operating rooms, which staff members and local dentists used to treat roughly 2,525 children in 2011, 6 percent more than in 2010. The average age of patients is 4, and most have decay in six to eight teeth, she said.

“The most severe cases have 12 or 16, which is seen several times a week,” Dr. Smiley added.

Using general anesthesia on healthy children has risks, including vomiting and nausea, and, in very rare cases, brain damage or death. Using anti-anxiety drugs to relax a child coupled with local anesthesia for pain has risks, too, including an overdose that could suppress breathing.