Dentistry
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Formlabs shows up at CES 2024 with more realistic 3D-printed teeth
Formlabs' new dental resin can even be color-matched to your existing teeth.
Baby tooth stem cells could regrow kids' dental tissue
If you injure a tooth as a kid, there's a real chance you'll grow up with a 'dead' tooth whose roots didn't grow properly due to tissue damage. However, scientists have conducted a successful trial for a method that could regrow kids' dental tissue using stem cells from their baby teeth. The team extracted human deciduous pulp stem cells (hDPSC) from patients' healthy baby teeth, allowed the cells to reproduce in a lab culture, and implanted them in the injured teeth. A year later, enough healthy tissue had regrown that the kids could feel at least some sensations, such as hot or cold.
Squid ink could make your dentist visits much less painful
Your dentist visits could become a pleasant pain-free experience, and it's all thanks to squids. A team of engineers from the University of California San Diego have developed an imaging method using squid ink and ultrasound to check for gum disease. If you've ever had to get your mouth checked for gum issues, you know what I'm talking about: the current method to assess gum health involves inserting a periodontal probe's metal hook in between your gums and teeth. Sometimes, depending on the dentist's technique your pain tolerance, it hurts. The team's method eliminates the need for probing -- you simply need to gargle some food-grade squid ink mixed with water and cornstarch.
Disney can digitally recreate your teeth
Digital models of humans can be uncannily accurate these days, but there's at least one area where they fall short: teeth. Unless you're willing to scan the inside of someone's mouth, you aren't going to get a very faithful representation of someone's pearly whites. Disney Research and ETH Zurich, however, have a far easier solution. They've just developed a technique to digitally recreate teeth beyond the gum line using little more than source data and everyday imagery. The team used 86 3D scans to create a model for an "average" set of teeth, and wrote an algorithm that adapts that model based on what it sees in the contours of teeth in photos and videos.
Regenerative tooth fillings could put an end to root canals
You really don't want a root canal, and not just because it's potentially painful. Emptying the tooth of the infected tissue at its heart potentially weakens it, since you can't grow that organic material back or put toxic fillings in its place. Researchers may have a solution, though. They've crafted fillings that get the tooth's own stem cells to regenerate and repair tissue. This doesn't mean that your pearly whites would return to normal, but the substance could heal the tooth enough to spare you a root canal or prevent fillings from going south.
ICYMI: Reading a fly's mind, real Minecraft phone and more
#fivemin-widget-blogsmith-image-44671{display:none;} .cke_show_borders #fivemin-widget-blogsmith-image-44671, #postcontentcontainer #fivemin-widget-blogsmith-image-44671{width:570px;display:block;}try{document.getElementById("fivemin-widget-blogsmith-image-44671").style.display="none";}catch(e){}Today on In Case You Missed It: Neuroscientists figured out what fruit flies are thinking with fluorescent molecules. Minecraft now has an internal smartphone that can be used to text and call people within the game. And this new smart flossing product that gives a strip of floss once the button is pushed also serves to shame your partner for not flossing with lights that come on if a daily cleaning is missed.
GumEase dental mouthpiece numbs without needles
Next time you go to the dentist for some dreadfully painful procedure, you may have the option of eschewing that Novocaine-bearing needle for a flexible dental mouthpiece that turns out the lights on your maxillofacial nerves. Developed by Laguna Hills-based BioMedDevice Limited, and recently approved by the FDA, the so-called gumEase uses no conventional anesthetics, instead relying on cryoanesthesia: basically, the freezer-stored device chills your mouth into numbness. One application of gumEase, which lasts up to 20 minutes, is said to relieve 90% of a patient's pain within two to three minutes -- and to prove it, the manufacturer has produced a rather graphic video depicting a hypodermic-free tooth extraction, which you can watch at your own risk after the break. With products such as this one and the RelaxView HMD seemingly making dental visits more pleasant than ever before, we may actually have to review our policy of only making appointments during leap years.
RelaxView 5.0 Dental Pack distracts from pain, does not clean teeth
In a clever bit of marketing designed to play to our deepest fears of oral torture at the hands of a disgruntled hygienist, Dutch manufacturer relaxView B.V. is bundling a head-mounted display with a portable DVD player and offering it up to dentists as a way to distract their victims patients from the unbearable pain. The RelaxView 5.0 Dental Pack combines the company's relaxView 3.0 HMD (simulates a 1.5-meter VGA screen at a distance of three meters), unnamed model of Discman, and "disposable hygiene set" (read: pack of alcohol swabs) into a package that differentiates itself by promising "optimum comfort" derived from a 65-gram weight and adjustable nose support. Not too shabby: if we had the rate our options in these situations, we'd pick watching a movie just ahead of staring at the colorful exam room artwork, and just behind a heavy drugging.
Digital cameras save little kids' teeth
Here at Engadget, we're all for preventive medicine. In fact, we're all about preventive anything, unless it's stopping us from getting our hands on the latest gear. Anyway, it turns out that there's a fairly treatable dental disorder called "early childhood dental caries," known in the biz as ECC. Sometimes when babies or toddlers go to sleep with a bottle of juice in their mouth, the sugars from the juice can cause serious dental problems, including tooth decay, sometimes leading to extraction. Ouch. Or to put it in terms that will make your wallet say "ow," annual treatment costs in the community of Rochester, NY, a town of over 200,000, run into the nabe of $1 million. Fortunately for them (and hopefully soon, the rest of us), University of Rochester Medical Center dental researchers have come up with a way of severly reducing this problem before it starts. By taking digital pictures of these tykes' teeth at health clinics and then zipping them off to pediatric dentists at the Eastman Dental Center across town, the problem can be spotted before it gets out of control. There, dentists check out the photos, can diagnose ECC and recommend treatment as needed. If only all dentistry was this easy. But seriously folks, if you really want to save money, try outsourcing your dental photography to India.[Via medGadget]
