preventing tooth decay

Fun facts: What is pH of saliva?

The curve on a graph, first described by Robert Stephan in 1943, showing the fall in pH below the critical level of pH 5.5, at which demineralization of enamel occurs following the intake of fermentable carbohydrates, acidic liquids, or sugar in the presence of acidogenic bacteria. After consumption, there is an elimination of the acid and a return to normal saliva or plaque pH, at which point repair of any destruction of the enamel structure takes place (remineralization). Repeated intakes of fermentable carbohydrates cause the low pH to be maintained for longer periods, thereby not allowing remineralization to take place.

Did you know?

Decalcification of teeth occurs when the pH in the oral cavity is less than 5.5 Below the so-called “critical pH” at which point it is postulated enamel built with hydroxyapatite dissolves.

Fluoroapatite has a critical pH of 4.5

Fluoroapatite is present in human teeth that have been exposed to fluoride ions, for example, through water fluoridation or by using fluoride-containing toothpaste. The presence of fluorapatite helps prevent tooth decay or dental caries, it makes tooth structure more resistant to additional caries attack.

It takes only 1 to 3 min to decrease pH below 5 of plaque exposed to sugar.

It takes 30-60 minutes for your saliva to get you back to the safe zone.

The longer you snack for, the longer you are at risk and the longer it takes for your mouth to recover.

Stay Hydrated 💦

It is extremely important to stay hydrated, whether it’s by drinking water, tea, coffee or juice.

Here are some healthy drinks with their benefits:

•green tea - weight loss/metabolism boost, good for skin, prevent tooth decay

•black tea - caffeine boost, anti-inflammatory

•oolong tea - weight loss, helps skin conditions

•white tea - highest antioxidants, calming, antibacterial

•rooibos tea - benefits skin, cancer fighting properties

•peppermint tea - supress appetite, decongestant

•lemon balm tea - calming, fights colds, helps with digestion, helps with headaches

•chamomile tea - helps sleeping problems

•hibiscus tea - refreshing, full of vitamins

•cinnamon tea - antioxidants, fights viruses, metabolism boost

•carrot juice - full of vitamins, detoxes, healing properties

•apple juice - full of vitamins, weight loss, strengthens bones

•pineapple juice - clears skin, helps with acne, full of vitamins, fights aging

road-slime  asked:

Saw your Yondu hygiene headcanon and I've gotta add; we also actually see what really looks like him actively care for his teeth. It might not look like much if you don't know about survivalist gear/etc, but we see him a couple times cleaning his teeth with twigs, which is actually an old way of cleaning the teeth and preventing tooth decay and gum disease. Look up teeth cleaning twigs if you want more evidence!

I totally agree!

I never thought of anything like that before, and I can totally see that.

His teeth ARE rather nice, if you think about it… In a crooked alien Ravager sort of way.

Thanks!  I’ll have to look into it!

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The Tale of the Princess Kaguya (2013) by Isao Takahata for Studio Ghibli

Princess Kaguya: But without eyebrows, the sweat will run into my eyes!

Lady Sagami: A noble princess doesn’t sweat. 

Princess Kaguya: And blackened teeth just look weird! I won’t be able to laugh anymore. 

Lady Sagami: A noble princess doesn’t open her mouth and laugh.

Princess Kaguya: Even a princess must sweat and laugh out loud sometimes! Or want to cry. Or get mad and shout. 

Wikipedia:

Hikimayu (引眉?) was the practice of removing the natural eyebrows and painting smudge-like eyebrows on the forehead in pre-modern Japan.

Hikimayu first appeared in the eighth century, when the Japanese court adopted Chinese customs and styles. Japanese noblewomen started painting their faces with a white powder called oshiroi.

One putative reason for hikimayu is that removing the natural eyebrows made it easier to put on the oshiroi. At this time the eyebrows were painted in arc shapes, as in China.

Japanese culture began to flourish in its own right during the Heian period, from AD 794. At the imperial court the arts reached a pinnacle of refinement. Women started wearing extremely elaborate costumes, painting their faces more thickly, and painting eyebrows as ovals or smudges on their foreheads. One possibility is that when they started letting their hair hang down on each side, it was felt that the forehead became too prominent; painting the eyebrows as ovals halfway up the forehead was supposed to redress the balance of the face. 


Ohaguro (お歯黒?) is a custom of dyeing one’s teeth black. In Japan, Ohaguro existed in one form or another for hundreds of years and was seen amongst the population as beautiful until the end of the Meiji period. Objects that were pitch black, such as glaze-like lacquer, were seen as beautiful. It was also beneficial, as it prevented tooth decay, in a similar fashion to modern dental sealants.

Many Westerners, including Rutherford Alcock, who visited Edo-era Japan described ohaguro as an abhorrent Japanese custom which disfigured Japanese women. Alcock conjectured that the purpose of it is chastity by making the women intentionally unattractive to prevent potential extra-marital relationship. Japanese social scientist Kyouji Watanabe disagrees with this theory. Based on the fact that Japanese girls were allowed a large degree of both social and sexual liberty until the time of Ohaguro when they resume the responsibility of wife and mother, Watanabe thinks that it is a social ritual by which both society and a girl herself confirm the determination of matured women.

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Ohaguro is a custom of dyeing one’s teeth black. It was most popular in Japan until the Meiji era. Tooth painting is also known and practiced in the southeastern parts of China, Pacific Islands and Southeast Asia. Dyeing is mainly done by married women, though occasionally men do it as well. It was also beneficial, as it prevented tooth decay. (Source)

lillirogers143  asked:

I wanna try meth but don't now how to get it and I don't wanna be awkward about it ._. help?

Well. firstly, I don’t suggest you try it without knowing all about it. I mean, it’s going in your body.. Wouldn’t you wanna know what’s being put in your system?

On that note, you’re gonna do whatever you want to regardless of what a person behind a screen tells you. I’m sure you don’t listen to your parents, either. Anyway, if you do decide to try meth, please for te love of every god. find someone you trust. Not trust… But TRUST. And who possibly knows about the drug already and can “chaperone/guide” the experience. Also, make sure whoever it is you’re doing to be around are people you like or enjoy. Negative people just isn’t the way to go. Finding a dealer can be a rough ordeal. It’s better to wait to try it the first time when you know someone who already uses, than to just jump out in shark infested water without some floaties. Still with me here? Good. If/when you decide to use this drug, please do it safely. At a comfortable place, would be preferred. It’s very very very important to stay hydrated. Water or juice is what I typically use. Drink as much as you can, when you can. Hydration is #1. #2 would be your hygiene. This is where “faces of meth” come in. If you don’t wanna end up the next face to land on that billboard, hygiene will be your best friend. Brush your teeth, as many times as you like. I typically brush before a session, during, and after. WASHING YOUR FACE A HUGE PART OF HYGIENE. Along with bathing/showering. On to eating. Eat as often as you can. Little things, like snacks. I typically eat ice cream and bananas. Bananas are good for your eye sight, especially when they get to that “twacked” level. Dairy products are good for your teeth, to help prevent tooth decay. But you’ll find certain things you must have during sessions. But eating is mandatory: force yourself if necessary, but you need the proper nutrients to keep your immune system in tip top shape. Back to face washing. Try not to touch your face for any reason. If you feel the urge, go wash your hands. Get in the habit of doing that. Sleeping… Now sleeping is tricky. Some people can, some people can’t. I suggest, 2-3 days awake, and the following day to rest. Or you can take a 4-5 hour nap each day your awake, instead of sleeping away a hole day. This will prevent the hallucinations and keep you on a moderate sleep schedule.

I think I’ve touched on all the basis. Followers, please add anything you think might make this experience a little more pleasant. Anyway, good luck. Please be safe. And take care.

Health: What happens to your body when you kiss?; So you thought kissing was just about your lips touching his, did you? It may be the most innocent sexual act of the lot but a simple snog sets up a complex chain of events.

Stage 1: the scent of attraction

Who you kiss, how you kiss and where you kiss all affect the significance of the moment. But while all five senses add to the pleasure, smell is the first to be stimulated. `Pheromones are chemicals we smell and this initiates attraction,’ says Phillip Hodson, psychotherapist and co-author of How to Make Great Love to a Man (pounds 16.95, Robson Books). `They are odours secreted by sweat glands under the arms and in the groin, that have the power to attract a mate,’ he says. In other words, you like the `smell’ of people you fancy.

Stage 2: pucker up

It’s official: lips are sexy. `The skin of the lips is only half as thick as normal skin,’ says psychologist Nick Neave, of the Society of Endocrinology. `When women get aroused, their lips flush, just like the genitals do.’ We wear lipstick, not to make our mouths look like vaginal lips, as one theory goes, but to make us look fertile, mirroring their redness at our reproductive peak. And because our mouths process information (about food, for example), lips carry lots of nerve endings, making them super-sensitive.

Stage 3: love on the brain

Many women say they’d rather be kissed than have sex. According to Dr Andrew Scholey, senior lecturer in psychology at Northumbria University, the reason kissing feels so nice is because of the disproportionately large area of brain dedicated to lip and tongue movements. `Only finger or hand movements occupy as much brain space. The genitals have a much smaller area in comparison.’


Stage 4: when sparks fly

The moment your lips meet is often described as `electric’, and that’s exactly what it is. Studies using electrodes on people’s lips during a kiss showed electric currents flowing along the nerves from the brain to all of the 34 facial muscles. Hence, those tingly sensations.

Stage 5: mouth-watering

As your kiss gets more intense, so does the production of saliva, which may create ugly slobber trails, but also helps prevent tooth decay. `Kissing is nature’s cleaning process, it stimulates saliva flow which brings plaque levels down,’ says Dr Jacinta Yeo from the British Dental Association.

Stage 6: hormone heaven

In exactly the same way as drinking alcohol, kissing stimulates the primitive part of the brain involved in automated functions (the four Fs: feeding, fighting, flight and, um, mating). `As you kiss, signals received by nerve endings in the lips are sent to the limbic system, which releases hormones that tell the pituitary glands to produce gonadotrophin. This hormone attaches itself to the ovaries, causing the release of oestrogen and testosterone, which increase sexual excitement,’ says Dr Scholey. Another hormone released now is oxytocin - the bonding hormone. It is also secreted during breastfeeding and orgasm, and promotes caring feelings towards your partner or baby.

Stage 7: hot stuff

`Your growing excitement causes levels of the hormones adrenalin and noradrenalin to rise,’ says Dr Hodson. Adrenalin causes blood to switch from the stomach to the limbs, ready for flight or fight and banishing hunger pangs. As your blood pressure increases, blood rushes to the surface, making your body warmer and creating a rosy glow. At rest, your heart beats about 60 to 80 times a minute, but mid-kiss this accelerates to over 100. Your lips swell and redden, due to arteries pumping blood out faster than the veins can return it to the heart.

Stage 8: take me now

As adrenalin increases, levels of the feel-good chemical serotonin fall. Far from reducing sexual pleasure, this keeps you focused and less likely to want to break off to make a cuppa. As serotonin drops, so do your inhibitions, making you more impulsive.

Stage 9: feel-good factor

Your kiss has reached its peak and your body’s working overtime to stop you thinking that going to bed with Norman No Mates isn’t such a great idea. `Your body rewards itself for reproducing, so it makes you feel nice by releasing the neurotransmitter dopamine into the brain, which intensifies your desire so you crave more,’ says Dr Hodson.

Stage 10: let there be love

Finally, the natural amphetamine phenylethylamine is released. This is also in chocolate and roses and gives the sensation of falling in love: butterflies in the stomach, low appetite and excitement. That light-headed feeling is from the release of endorphins, the brain’s natural opium-like substances. Phew! We challenge you to remember all this next time you’re having a snog.

A kiss too far…

Frog kiss

Popular with Californian teens, this is touching tongues quickly like a frog catching a fly.

Electric kiss

Turn the lights off (you may see sparks fly) and stand about 3ft apart. Rub your feet on the carpet to build up a charge of static electricity in the body, and pucker up. It depends how dry the air is, but up to 4,500 volts of electricity can be discharged between you.

Lip-o-suction kiss

Popular in Puerto Rico, focus your attention on the lower lip, kissing and sucking it hard.

Butterfly kiss

So romantic your lips never touch. Instead, you flutter your eyelashes gently on his cheek. Ahhh.

Biting kiss

Playfully nipping the ear lobe, lips, the tip of the nose and the chin. It’s exciting, according to William Cane, author of The Art of Kissing (pounds 6.95, St Martin’s Press) as it demonstrates pent-up sexual energy. He reckons about 78% of men and 84% of women like to bite or be bitten during a kiss. Softly, we assume.

Brain

One of the reasons kissing feels nice is because of the disproportionately large area of brain dedicated to lip and tongue movements - the genitals have a much smaller area in comparison

Skin

As your blood pressure increases, blood rushes to the surface of the skin, making your body warmer and creating a rosy glow. At rest, your heart beats about 60 to 80 times a minutes, but mid-kiss this accelerates to over 100

Lips

It’s official: lips are sexy. `The skin of the lips is only half as thick as normal skin. When women become aroused, their lips flush, just like the genitals do’

Nathaniel Gibbs
COPYRIGHT 2001 MGN LTD

Copyright 2001 Gale, Cengage Learning. All rights reserved.

We swap something like 80 MILLION bacteria with every 10 second long French kiss.

Sounds gross, but that’s not necessarily a bad thing. Our mouths are naturally crawling with microbes—and lots of them help keep us healthy. In fact, we’re learning that to prevent things like tooth decay and gum disease, we need to keep these bugs happy. 

Learn more in this week’s Gross Science—and remember to subscribe <3

kreepu  asked:

Can you explain about fluoride in toothpaste? Is it really bad for your bones?

In short, evidence from a range of studies suggests that fluoride in toothpaste can help prevent tooth decay.

As well as this, levels of fluoride in toothpaste alone are not high enough to cause skeletal fluorosis, the condition caused by excessive consumption of fluoride.

Toothpaste contains about 1000ppm of fluoride (approximately 0.25mg of fluoride per brush). Fluorinated water supplies, conversely, usually contain about 1ppm (1mg per litre of water), and these levels are carefully monitored and adjusted.

Fluoride is an important contributor to reducing tooth decay. Studies have shown that children from areas with fluorinated water supplies in Britain show an approximately 20% reduction in tooth decay compared to those in areas with non-fluorinated water supplies.

Skeletal fluorosis is a condition that can occur if someone ingests high levels of fluoride over a long period of time. This proceeds as follows:

  • Fluoride ions react with hydrochloric acid in the stomach to produce small amount of the weak acid hydrofluoric acid.
  • This is absorbed into the bloodstream in the gastrointestinal tract and distributed to all tissues and bone.
  • Fluoride ions react with calcium in bone to form calcium fluoride. This results in increased density but decreased strength of bone.

The National Academy of Sciences in the US has previously stated that symptoms of skeletal fluorosis ‘may occur in people who have ingested 10-20mg of fluoride per day for 10-20 years.’ To put this in perspective, let’s assume you brush your teeth twice a day, and drink the recommended three litres of water per day. That puts your fluoride intake at 3.5mg per day, assuming your water supply is fluorinated, and lower still if it isn’t, which is a fair bit below this threshold. 

Hope that answers your question!

Further Reading:

karlsgrisly-blog  asked:

So they proscribed fluoride drops for my baby, they say it's for her teeth that are forming... how exactly do they work and are they necessary?

Fluoride helps to protect or repair tooth enamel, granted they are not overused. This is the same principle of putting minute amounts of fluoride in water, mouth washes or toothpastes to aid dental health. There are lot of conspiracy theories surrounding fluoride but is completely safe when administered at proper dosages (too much of anything causes problems)

Here’s an excerpt from web MD on fluoride and its use:

Fluoride is a mineral that occurs naturally in many foods and water. Every day, minerals are added to and lost from a tooth’s enamel layer through two processes, demineralization and remineralization. Minerals are lost (demineralization) from a tooth’s enamel layer when acids — formed from plaque bacteria and sugars in the mouth — attack the enamel. Minerals such as fluoride, calcium, and phosphate are redeposited (remineralization) to the enamel layer from the foods and waters consumed. Too much demineralization without enough remineralization to repair the enamel layer leads to tooth decay.

Fluoride helps prevent tooth decay by making the tooth more resistant to acid attacks from plaque bacteria and sugars in the mouth. It also reverses early decay. In children under 6 years of age, fluoride becomes incorporated into the development of permanent teeth, making it difficult for acids to demineralize the teeth. Fluoride also helps speed remineralization as well as disrupts acid production in already erupted teeth of both children and adults.

[…]

It is certainly important for infants and children between the ages of 6 months and 16 years to be exposed to fluoride. This is the timeframe during which the primary and permanent teeth come in. However, adults benefit from fluoride, too. New research indicates that topical fluoride — from toothpastes, mouth rinses, and fluoride treatments — are as important in fighting tooth decay as in strengthening developing teeth.

marshamellow78  asked:

How many people asked you about fluoride poisoning? Many people at at my school knows that I'm a pre-dental student and a lot of them asked me on why would I want to work in a field that purposely poison the public. It's quite fustrating!

Yes I feel you! I get asked that question a lot. We’ve had over 8 hours worth of lecture on the topic of fluoride alone, so I usually respond by telling them that you have to drink over 600 gallons of fluoridated water in one sitting to die from fluoride poisoning, not to mention you would die from water poisoning first.

Fluoride was one of the single greatest public health initiatives in our country. It prevents cavities and tooth decay and in the long run saves everybody money. Something along the lines of every $1 spend on fluoridation saves $35 in dental health costs.

In dentistry you are going to run across skeptics everywhere and people who are all about curing their cavities holistically. Or you will run into people who think you are only about the money and are doing procedures unnecessarily “Hey doc, these root canals are probably paying for your summer vacation!” The point is, you are going to run into this a lot, regardless if it concerns fluoride, costs of services, holistic methods, etc. Just smile and politely try and set the facts straight. We don’t spend 8 years in school for nothing! 

  • Beauty magazines: Your nighttime ritual is important! Wash, exfoliate, and moisturize for healthy, glowing skin! Don't forget to brush and floss to prevent tooth decay! A top knot or braid can keep your hair cleaner and less likely to get tangled while you sleep.
  • Me: *maybe removes pants after coming home* goodnight friends I am gone