Some redheads have more sensitivity to pain, may need more anesthetic
Gene variant may play a role and influence pain sensitivity
Fri July 31, 2009Next Article in Health By Madison Park

(CNN) -- Despite two injections of anesthetic, Amy Anderson felt like her dentist was jamming rods into her tooth during a root canal. She writhed in pain as her infected tooth was hollowed with a drill, its nerve amputated, and then sealed.

Studies say redheads avoid dental care after having painful experiences and may require more anesthetics. "I knew this time something was wrong. I could feel my lips," said the Syracuse, New York, resident, who told her dentist the drugs weren't working. Her doctor kept assuring her she had given her a proper dose and said: "I'm almost done."

"I was hurting so bad, I was hitting myself in the stomach," said Anderson, a redhead. "I almost wanted to hit her."

Studies have indicated that redheads may be more sensitive to pain and may need more anesthetics to numb them.

New research published in this month's Journal of American Dental Association found that painful experiences at the dentist might cause more anxiety for men and women with red hair, who were twice as likely to avoid dental care than people with dark hair.

"Redheads are sensitive to pain," said Dr. Daniel Sessler, an Outcomes Research Department chair at The Cleveland Clinic, in Cleveland, Ohio, who is one of the authors.

"They require more generalized anesthesia, localized anesthesia. The conventional doses fail. They have bad experiences at the dentist and because of the bad experiences, they could avoid dental care."