TeethRemoval.com

Nanotechnology to Play Role in Increasing Duration of Dental Fillings

wisdom — Thu, 22 Oct 2009 22:52:24 +0000

Half of all tooth-colored restorations, which are made of composite resin, fail within 10 year. 60 % of all operative dentistry involves replacing them, according to research in the Journal of the American Dental Association.

To make a bond, a dentist etches away some of the dentin’s minerals with phosphoric acid to expose a network of collagen. Acid-etching is kind of similar to priming a wall before it’s painted; it prepares the tooth for application of an adhesive to the hybrid layer so that the resin can latch on to the collagen network. Unfortunately, the imperfect adhesives leave spaces inside the collagen that are not properly infiltrated with resin which can cause the bond to fail.

Dr. Franklin Tay is trying to prevent the aging and degradation of resin-dentin bonding by feeding minerals back into the collagen network. With a two year, $252,497 grant from the National Institute of Dental and Craniofacial Research, he will investigate guided tissue remineralization. This approach is a new nanotechnology process of growing extremely small, mineral-rich crystals and guiding them into the demineralized gaps between collagen fibers.

Dr. Tay says. “We’re trying to mimic nature, and we’re learning a lot from observing how small animals make their shells.”

The crystals, called hydroxyapatite, bond when proteins and minerals interact. Dr. Tay will use calcium phosphate, a mineral that’s the primary component of dentin, enamel and bone, and two protein analogs also found in dentin so he can mimic nature while controlling the size of each crystal.

Most crystals are grown from one small crystal into a larger, homogeneous one that is far too big to penetrate the spaces within the collagen network. Dr. Tay will fit the crystal into the space it needs to fill. “When crystals are formed, they don’t have a definite shape, so they are easily guided into the nooks and crannies of the collagen matrix,” says Dr. Tay.

If Dr. Tay’s concept of guided tissue remineralization works, he will create a delivery system to apply the crystals to the hybrid layer after the acid-etching process.

Dr. Tay says “Our end goal is that this material will repair a cavity on its own so that dentists don’t have to fill the tooth.”

Adapted from materials provided by Medical College of Georgia.

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NDPH – Chronic Headache Articles

wisdom — Wed, 21 Oct 2009 00:43:32 +0000

I found some useful articles on NDPH and chronic headache that may be of interest to you if you suffer from new daily persistent headache or have frequent headaches.

There are also some key take-home points even if you do not currently suffer from any headache condition.

The first point is that surgery has been shown to trigger 24/7 headache in children in at least a handful of cases. This has occurred in extra-cranial surgery, meaning surgery that is not of the brain.

The pathophysiology of this is currently unknown… Thus this should certainly be weighed when considering whether or not to undergo wisdom teeth removal as it is surgery.

The other important take-home point is that this 24/7 headache often does not respond to any treatment. Thus the goal of treatment in the short term is often to reduce the intensity of the headache.

I have uploaded the headache articles to my website. You can view the first at

http://www.teethremoval.com/What_Incites_New_Daily_Persistent_Headache_in_Children.pdf

The second article is at

http://www.teethremoval.com/New_Daily_Persistent_Headache_in_Children_and_Adults.pdf

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3T MRI Detects Breast Cancer Not Seen on other Modalities

wisdom — Fri, 16 Oct 2009 06:14:46 +0000

A recent study suggests, 3T MRI, a powerful tool for evaluating patients with a high risk of having breast cancer, can detect a significant number of lesions not found on mammography and sonography.

Results showed that 3T MRI detected 66/66 malignant lesions; mammography detected 54/66 malignant lesions; and sonography detected 57/66 malignant lesions. “3T MRI depicted a significantly higher number of malignant tumors of the breast than mammography and sonography,” said Haitham Elsamaloty, MD, lead author of the study.

For those not familar, 3T is a higher field strength for MRI machines. Much higher than 3T field strengths are available but only in a research and not a hospital or clinical setting. Many hospitals are now having 3T MRI scanners so if you feel you would benefit you can request and make sure you use one that is 3T. I question whether 3T is better than 1.5T for other types of cancers and diseases.

Adapted from materials provided by American Roentgen Ray Society.

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Ask Dr. Ellie

wisdom — Mon, 05 Oct 2009 05:57:55 +0000

So I stumbled upon a blog for a Doctor named Ellie Phillips. Her blog is titled Ask Dr. Ellie and it appears as if people ask her questions related to dental health.

It seems as if her blog helps serve as a platform for her to promote her company zellies.com. This company sells mints and gum that contains xylitol.

Dr. Ellie is a DDS and does provide advice, perhaps you may find it helpful or perhaps it will conflict with what your dentist has told you.

One thing to note is that xylitol is poison to dogs be careful if considering using xylitol.

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Win a Smile MakeOver

wisdom — Mon, 28 Sep 2009 21:45:11 +0000

I wanted to alert anyone who might be interested, that 1-800-DENTIST® is running a $30,000 smile makeover contest until mid November of 2009.

To learn more you can visit www.1800dentist.com/my-smile-bites. You will need to submit and create a 2 minute video of yourself which discusses your smile and what you think would make it better. After your video is uploaded, family and friends can vote and help you become the winner of the contest.

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