1001 Uses For Dental Floss #57- The Dental Nurse Who Became An Alligator Catcher- A Story With Teeth.

Image copyright by Christy Kroboth, 2017. One of her catches (on a golf course).

Not exactly dental floss-related, but a fun story anyway. I came across this story of a dental assistant who decided to give up her career to become a full-time alligator catcher. Alligators of course have a lot more teeth than your (or my) average dental patient, and they’re a lot sharper and dangerous, so there’s part of the challenge. When Christy Kroboth started training as an alligator catcher she was the only woman in her class, but – she’s apretty tough and determined woman. She wanted to show that she could jump on an animal much bigger than her, and tape its jaws tightly shut before it had a chance to do her any damage.

She first started to catch alligators as a side employment to her main job, which was as a dental assistant, but her reputation grew to the point that demand made her take this on as full-time work. She’s a real animal lover, and remembers how she got to be that way- her mom used to stop the car at the side of the road to help ducks and turtles cross, and took in stray cats, dogs, and any other animal that needed a home.

In southern Texas, where Christy lives, there are a lot of communities where large man-made lakes and ponds are a sure attraction for alligators who live in the region to move in, but surprisingly, only one person has been killed by an alligator in the last 100 years. (So she claims, anyway.) People are of course afraid that their children and pets will be attacked and eaten,but she pooh-poohs this just a “superstition”, that they’re not the monsters they’re made out to be.

Alligators, being reptiles, have been around for millions of years, and have become an important part of the ecosystem, maintaining the fine balance of aquatic life. Apparently, they’re quite shy (when have you ever seen an alligator on a celebrity reality show?) and are fairly benign.

With a special licence and a permit, having taken a course which includes both a theoretical and a practical part (in other words, catching the beast with your bare hands).
She was the only girl in the class and also the youngest. The trainer told them: “OK, you’ve all passed the paperwork, now let’s go do this hands-on.”
Having never even touched an alligator before, for a split second she thought, “I can’t do this.” She called my mom, who said, as most loving moms would,”Come home right now, don’t do it!”
But this yound lady had something to prove, to herself, her mother, and especially to the “big ol’ country boys”. In her words, she ran out to the pond, got the alligator, taped him up and ended up passing the test. It was one of the happiest moments of her life and that adrenaline rush lasted the whole day.

Considering the the average alligator weighs almost 800 pounds (360 kilgrams) and is over 13 feet (4 meters) long, you can imagine the guts it takes to do this work. And she loves her job. She didn’t say, though, if she ever tried to floss an alligator’s teeth, and if she would ever try to use floss to tie one up. Somehow, I think, the answer to both these questions would be “no”.

This story was first reported by BBC Magazine. You will find the original article at: http://www.bbc.com/news/magazine-38641709

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1001 Uses For Dental Floss #54- Can Good Oral Hygiene Damage Your Body? Really?

Probably not.
Years ago, when I was a beginner dentist, I didn’t know much, but then a lot of others were in the same boat. At one time, the teeth were considered a focus of infection, a place which harboured bacteria just waiting to set forth and infect the rest of the body. Boy, did dentists feel maligned, something like weathermen who were blamed for every storm and cold font, tornado, and drought, just for being around.
There was then an orthodoxy surrounding dental treatment for patients who had various sorts of heart defects, such as damaged or defective heart valves, a history of heart valve replacement, a history of rheumatic fever, or other heart-related problems. All such individuals were given penicillin (or, if they were allergic to that, another antibiotic) for two days before treatment and then for a day after the procedure, because it was felt that bacteria such as Streptococcus mutans or Streptococcus viridans lodged in the gums and around teeth would get pushed into the blood and then travel to and colonize these damaged, sensitive surfaces of the heart. A few years later, the regimen (developed by the American Heart Foundation) got simpler and involved just a single dose of penicillin (or other as above) an hour before the dental treatment started.
More recently, realizing that people with these problems could seed their hearts with bacteria just by brushing (and flossing), it became clear that it was a fool’s errand to try to prevent these effects except where there were powerful reasons to try to do so: recent heart valve surgery (within the last year) or certain serious and complex developmental defects involving the heart, or a heart transplant. Unfortunately, it was not a good idea to have these patients on a continuous dose of antibiotics either. The free and easy way in which antibiotics were being used was becoming a danger in itself, because strains of antibiotic-resistant bacteria were arising due to their overuse.
So, at the time, there was also a concern that certain artificial implants, such as latex tubes placed to drain excess fluid from the brain, or artificial hip joints, might offer internal surfaces that could be colonized by mouth bacteria, and antibiotics might be useful against this possibility too. And then antibiotics for these cases fell out of fashion,too.
That was then. Here, now, we’re up against the same situation again. Recently, a woman with an artificial knee joint arrived in hospital with a painful infection in that site. Puzzled doctors opened up the knee and discovered that the infection was by another type of bacteria, this time Streptococcus gordonii, commonly found in the mouth, and decided that because the woman had recently started vigorous flossing, that must have pushed them into the blood, and the infection of the knee followed.

Of course it did. Obviously.

Same old story, blaming the teeth again.To which I say, maybe. And if history is any sort of guide any more, probably not.

Keep flossing.

1001 Uses For Dental Floss #44- Voices In My Head

No, you’re not – I know it’s not politically correct to use this term – crazy. Not really.

We’ve all heard stories of people claiming to hear the radio signal inside their head because of a new filling in a tooth, sometimes causing them distress. So far, this phenomenon is pretty-much discounted; it’s all in their heads, as they say. Well, now someone has gone out and developed a tooth implant, a small wireless radio receiver, with a linked micro-vibrator, which can be placed inside an opening (an artificially created cavity) in a tooth, something like a filling is. A dentist makes a space in the tooth for it, and covers it with a white dental filling to seal it up.

Two researchers at the MIT Media Lab Europe, Jimmy Loizeau and James Auger, designed this object, and it was exhibited a few years ago in a collaboration between the Science Museum and the Royal College of Art in London.

The device retransmits digital radio signals from a local cell phone (within a short distance.) This electromagnetic signal is translated into low-level sound vibrations by a micro-vibrator, which then travel through the jawbone by bone resonance to the ear, where it is heard. No one outside the mouth hears it, so it can remain secret. Need an alarm clock to wake you up at a time when your bed buddy would rather not be disturbed? Want to hear the latest news or a secret message? Want someone to coach you through an exam?

Want to know what it’s like to feel like you have voices in your head? Now you can. And how to turn it off? There’s an app for that, which can remotely activate it or shut it down.

Now if only your tooth would stop ringing while you’re having that deeply romantic moment. It could get you into trouble.

1001 Uses For Dental Floss #43- Archeology, Dental Evidence, and Child Sacrifice

Today’s post is a mixture of history, archeology, religion, conjecture and controversy. Not much to do with floss, but hang in for the surprises.

First, a little history. Carthage was once a city in what is now Tunisia. You may remember Carthage, a city and an empire which clashed with Rome and lost. Hannibal, famous for crossing the Alps into Italy with his elephants, engaged the Romans in war and won most of the battles, except for the last one, which is of course the most important one. That’s why the languages many of us speak are descended from variants of Latin instead of variants of Aramaic, which is what the Carthaginians spoke.

Aramaic happens to be the language spoken in the eastern Mediterranean lands before the Romans and Greeks came along, and was the language used by Jesus. It was spoken by the Phoenicians, who were the close cousins, if not the same crew, as the Carthaginians. They were also known as the Canaanites, who worshipped the God Baal.

So it happens, if you remember any of the Old Testament part of the Bible from your youth, that these Baalists carried out all sorts of atrocities in their religious rites, including child sacrifice, and this practice, and therefore Phoenician/ Canaanite culture (and thus also Carthaginian culture) were abhorred by the Israelites, and later by the Greeks and Romans.

Human sacrifice was vigorously condemned in the Old Testament by the prophet Elijah, who promoted the destruction of the Baalists by the Israelites for this reason, among others.

So, did these peoples really sacrifice children in their temples? Now here the evidence starts to stir up controversy. This all hangs on evidence related to something called the “neonatal line” in baby teeth. What is termed the “neonatal line” is a noticeable change in layers of enamel evenly laid down before birth, something like the rings in a tree. This mechanism is briefly disrupted during a week or more following birth because birth process is so traumatic to the newborn, and this line can be seen when these teeth are viewed by a number of different analytical methods.

Still with me?

In a children’s cemetery recently examined in the ruins of Carthage, young children’s remains included both ones who died shortly after birth, but also many who were the results of miscarriages, because their teeth bore no signs of the neonatal line and so died before birth. It is known that the survival of newborns past their first year or two was only about 50% at best.

What this implies is that these fetuses were buried with reverence in the cemetery and suggests, from the inscriptions on grave markers there, that the other children died a natural death and were not given by their parents to be sacrificed, but their lives rather were highly valued.

Read this as you will, but this could imply that the whole notion of child sacrifice in Canaanite culture could be wrong and written in the Old Testament to justify the destruction of these people by the abhorrence of God for this practice. The evidence could be flimsy or it could be robust, depending on where your sympathies lie, but experts in the field (historians and archeologists) are strongly divided on whether this is real evidence and if it means anything when compared to the historical record that was written by the Jews, the Greeks, and the Romans, who were of course the enemies of this people. Historical revisionism by the victor, after all, has been around for a long, long time. But at this point, the verdict seems to hinge on evidence from teeth.

To which I say: I don’t know, but remember to floss.

For both takes on this story, see:

http://www.livescience.com/23298-carthage-graveyard-not-child-sacrifice.html

http://www.science20.com/news_articles/old_history_new_again_ancient_carthaginians_did_sacrifice_their_children-128372

1001 Uses For Dental Floss #38- Our Friends The Animals

This story isn’t about floss. Not this time. It’s about the unusual variations of teeth in the animal world

I have to credit pediatric anesthetist Dr. Karen Brown for asking me one day, while we were working together in the O.R., if I knew which mammal had the largest number of sets of teeth. I failed the test because I didn’t know the answer. So Dr. Brown told me.

As most of us know, humans have 2 sets of teeth, but that’s not true for some of our friends, the animals. Not always.

It turns out that elephants grow up to 6 sets of teeth in a lifetime (the record), and that can be a long time, something like 70 years or so. It’s not like our teeth, where the permanent teeth form under the baby teeth and grow into the mouth to replace the baby teeth as they are shed. In elephants, as well as in dugongs, kangaroos (nor strictly mammals, but marsupials) and a certain type of African rodent, all have the teeth slide forward in the jaw, and as the frontmost of 3 molars are shed, new ones grow in behind them, something like a tooth assembly line. This type of dentition is called polyphyodont.

Of course, that’s not so for the elephant’s tusks, which are actually a specialized type of tooth. They’re the ones that the poachers are after, with the result that elephants are rapidly going extinct. Tusks keep on growing longer throughout the elephant’s lifespan. They’re not shed.

Now you know.

1001 Uses For Dental Floss #2– Radium Toothpaste

http-inlinethumb23.webshots.com-43798-2706452680102347975S600x600Q85During World War II, a German company, Auergesellschaft of Berlin, marketed a radioactive toothpaste, Doramad. On the back of the toothpaste tube it was stated that, ‘radioactive radiation increases the defenses of teeth and gums… cells are loaded with new life energy, the destroying effect of bacteria is hindered… it gently polishes the dental enamel and turns it white and shiny.’ The description failed to mention that the radiation could cause mutations and cancer in the mouths of the users and, when swallowed, many other organs of the body. The popularity of this toothpaste is unknown, likely because Germans were more concerned with surviving the war and “following orders” at the time.