Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Researchers use light to coax stem cells to repair teeth (2014)

seas.harvard.edu

Post reply on HN
Print view View original

21–30 of 86 posts

Re: Researchers use light to coax stem cells to repair teeth (2014)

#21

Post by pygy_ »

Noseshine wrote: post #15
manmal wrote: post #6

Earlier quoted context omitted.

So true. In cases where teeth don't get out as easily as intended, they are sliced, hammered and broken out of your jaw - feels so medieval.

Uhm... do you now how bones get repaired? Only the easiest fractures are allowed to heal themselves. Everything worse than that looks like this: https://teachengineeringprod.blob.core.windows.net/content/c...

Orthopedic surgery is indeed a lot like wood working. Surgeons use saws and drills routinely in the operating room.

See also (for example): http://www.orsupply.com/medical/category/Surgical-Instrument...

Re: Researchers use light to coax stem cells to repair teeth (2014)

#22

Post by Brakenshire »

kyriakos wrote: post #5

I hope this process becomes part of mainstream dental medicine. Our current dental technology feels backward compared to other fields of medicine

Kind of backward, but also one of the most successful fields of medicine.

Re: Researchers use light to coax stem cells to repair teeth (2014)

#23

Post by agumonkey »

MichaelApproved wrote: post #18
manmal wrote: post #6

Earlier quoted context omitted.

So true. In cases where teeth don't get out as easily as intended, they are sliced, hammered and broken out of your jaw - feels so medieval.

Knee replacement isn't much prettier. Here are some links to time stamped surgical highlights sawing bone [5:55 mark] - https://youtu.be/bGOspdD25Dw?t=355 hammering [11:10 mark] - https://youtu.be/bGOspdD25Dw?t=671 Swinging a hammer like a baseball bat to remove a pin [entire video] - https://www.youtube.com/watch?v=MnBvpSU1Fcc Dentistry is gruesome but so is surgery, in general.

Made a quick youtube search for latest surgery tech, all I saw was a sewing burning scissors. Cute tech but still barbaric to me. Artery is even more gruesome, plumber. I wish to see organ generation take off somehow.

Re: Researchers use light to coax stem cells to repair teeth (2014)

#24

Post by ThinkBeat »

taxicabjesus wrote: post #17
taxicabjesus wrote: post #12

Years ago I switched to brushing with baking soda and salt, and my teeth have basically stopped degenerating. Bar soap is good too, for removing acid-producing bacteria, but I don't like the aftertaste of some soaps.

Gerard Judd is the chemist who recommends brushing with bar soap [1]. It's cheap, readily available, and works better than anything else. And when combined with a second round of brushing with baking soda, my teeth stay squeaky-clean for longer than any toothpaste I've ever used. [1] http://www.fixyourteeth.org/ Just yesterday my brother & his wife were commenting on how good my 8-year old dog's teeth are. They've ne…

You really should not feed chicken bones to a day. The fragments can be very sharp and cause medical problems.

http://www.vetblog.net/2013/07/dog.swallowed.chicken.bone.pr...

http://keepthetailwagging.com/dont-panic-when-a-dog-eats-a-c...

Re: Researchers use light to coax stem cells to repair teeth (2014)

#25

Post by Retric »

xyzzy_plugh wrote: post #19
taxicabjesus wrote: post #17

Earlier quoted context omitted.

Gerard Judd is the chemist who recommends brushing with bar soap [1]. It's cheap, readily available, and works better than anything else. And when combined with a second round of brushing with baking soda, my teeth stay squeaky-clean for longer than any toothpaste I've ever used. [1] http://www.fixyourteeth.org/ Just yesterday my brother & his wife were commenting on how good my 8-year old dog's teeth are. They've ne…

Does your veterinarian not recommend having her teeth professionally cleaned? Humans who have perfectly healthy and well taken care of teeth still go to the dentist, and for dogs it is no different. You should still be getting her once a year! There are more issues than not which could be happening that are not visible to the untrained eye.

Dogs have a much shorter lifespan so tooth decay is normally only really a problem if they eat processed foods.

Re: Researchers use light to coax stem cells to repair teeth (2014)

#26

Post by iends »

taxicabjesus wrote: post #17
taxicabjesus wrote: post #12

Years ago I switched to brushing with baking soda and salt, and my teeth have basically stopped degenerating. Bar soap is good too, for removing acid-producing bacteria, but I don't like the aftertaste of some soaps.

Gerard Judd is the chemist who recommends brushing with bar soap [1]. It's cheap, readily available, and works better than anything else. And when combined with a second round of brushing with baking soda, my teeth stay squeaky-clean for longer than any toothpaste I've ever used. [1] http://www.fixyourteeth.org/ Just yesterday my brother & his wife were commenting on how good my 8-year old dog's teeth are. They've ne…

Cavities are formed when sugar reacts with bacteria in the mouth. Normal dog food has very little sugar in it, especially if you avoid feeding your dog human food. (This is why your dog prefers human food. It's generally full of tasty sugar.)

Most dogs do have calculus in their mouth even if there is not active decay. There is also subgingival calculus (below the gum line, not visible to the human eye). Taking your dog to annual vet visits is important because they can help diagnose dental issues.

Re: Researchers use light to coax stem cells to repair teeth (2014)

#28

Post by lj3 »

ThinkBeat wrote: post #24
taxicabjesus wrote: post #17

Earlier quoted context omitted.

Gerard Judd is the chemist who recommends brushing with bar soap [1]. It's cheap, readily available, and works better than anything else. And when combined with a second round of brushing with baking soda, my teeth stay squeaky-clean for longer than any toothpaste I've ever used. [1] http://www.fixyourteeth.org/ Just yesterday my brother & his wife were commenting on how good my 8-year old dog's teeth are. They've ne…

You really should not feed chicken bones to a day. The fragments can be very sharp and cause medical problems. http://www.vetblog.net/2013/07/dog.swallowed.chicken.bone.pr... http://keepthetailwagging.com/dont-panic-when-a-dog-eats-a-c...

That only applies to cooked chicken bones, not raw ones.

Re: Researchers use light to coax stem cells to repair teeth (2014)

#29

Post by taxicabjesus »

ThinkBeat wrote: post #24
taxicabjesus wrote: post #17

Earlier quoted context omitted.

Gerard Judd is the chemist who recommends brushing with bar soap [1]. It's cheap, readily available, and works better than anything else. And when combined with a second round of brushing with baking soda, my teeth stay squeaky-clean for longer than any toothpaste I've ever used. [1] http://www.fixyourteeth.org/ Just yesterday my brother & his wife were commenting on how good my 8-year old dog's teeth are. They've ne…

You really should not feed chicken bones to a day. The fragments can be very sharp and cause medical problems. http://www.vetblog.net/2013/07/dog.swallowed.chicken.bone.pr... http://keepthetailwagging.com/dont-panic-when-a-dog-eats-a-c...

She did fine with the bones when she was a puppy. In theory, raw chicken bones shatter less than cooked chicken bones.

As I said elsewhere, she now eats regular dog food. When I'm visiting, I'll cut the cartilage off the end of a cooked chicken bone and give that to her. Sometimes she still helps herself to whatever bones she finds, and she hasn't had any problems.

Size might be a factor - she is about 75 pounds.

My dad's previous dog ate corn cobs. After years of this, a corn cob got stuck in his throat, leading to a big vet bill, so our dogs don't get corn cobs anymore.

Post reply on HN