The cabalistically alluring smile of lady Mona Lisa remains a mystery, but French scientists say they have cracked a few secrets of the famous painting. Researchers at The Louvre have studied seven of the museum’s Leonardo da Vinci paintings, including the Mona Lisa, to analyze the master’s use of successive ultrathin layers of paint and glaze – a technique that gave his works their soft and sensual quality.

Specialists from the Center for Research and Restoration of the Museums of France found that da Vinci painted up to 30 layers of paint and glaze on his works to achieve astonishingly high levels of subtlety. Added up, all the layers are less than 40 micrometers, or about half the thickness of a human hair, researcher Philippe Walter said Friday. The technique is called “sfumato,” and it allowed da Vinci to give outlines and contours a hazy quality (creating an illusion of depth and shadow). The technique’s use is well-known, but scientific study on it has been limited because, until the advent of advanced laser technology, tests required actual samples from the paintings.

Just as Leonardo da Vinci used the sfumato technique to intricately layer paint and glaze (creating beautiful works of art), a master artist uses similar techniques of layering porcelain powder to create realistic dental restorations. Dr. Sun chooses from approximately 30 different shades of porcelain powder, which are layered to create the illusion of a natural tooth. The result is an extremely high quality restoration, indistinguishable from an organically created tooth. It is important to note that the vast majority of porcelain technicians use only a few rudimentary shades of porcelain powder, resulting in a mediocre restoration which may look slightly artificial.

When searching for a cosmetic dentist, look for samples of his or her team’s work! Cosmetic dentists rely on an integrated team of clinical and laboratory experts to assist in creating lifelike porcelain restorations. Realistic shade and color should be present, not one solid shade of white. If possible, see how the restoration illuminates (how the tooth looks in natural sunlight) – is there a shift, like a natural tooth? Find a master artist who can provide you with the smile of your dreams. If you need a resource to find a cosmetic dentist in your area, the American Academy for Cosmetic Dentistry provides a search tool to find accredited AACD cosmetic dentists in your area.

The new teeth in the dino would grow directly beneath the existing teeth, similar to how our permanent teeth develop beneath our baby teeth. Wouldn’t it be nice to have a replacement tooth grow automatically whenever we have a problem?!

Earlier this year, researcher and long-famed paleontologist Jack Horner  had uncovered “B. Rex,” a 68-million year old T-Rex that is giving the academic community a lot to think about, both relating to dinosaurs and to the use of tooth material (and other mineral matter) in fossils. Through a special process of acid dissolution of ancient dino bones, organic material – blood vessels – were extracted and found in near-fresh condition!

“[We] dissolved away pieces of an even older dinosaur – a well-preserved 80-million-year-old duckbill – in acid, and again, found what appear to be blood vessels.” With this matter, new creatures could be genetically grown that had fallen extinct millions of years ago – a dino zoo even! What is interesting about dinosaur teeth however is that they illustrate how versatile teeth are in Earth’s many different life forms.

Humans obviously use their teeth for tearing, chewing and start the process of digesting food; speech and aesthetic purposes are also served by our teeth. Although we only have two sets of natural teeth, we can artificially create new teeth with implant dentistry. Other creatures have no teeth, like ducks and geese, which simply use their bill to seek out food and begin the digestion process.

The systematic replacement of old or broken teeth in dinosaurs is what’s driving research that will hopefully, in the future, result in human teeth being grown for human tooth replacement. Imagine being able to have a real, natural and healthy tooth installed in your mouth!

T-Rex tooth - it's replaceable!

Current technology, like existing biocompatible metals (such as titanium) are used to replace human parts like hip bones. Biocompatible  titanium is used for dental implant fixture, replacing a tooth’s root being implanted in the jaw bone. Porcelain restorations are then attached to the artificial titanium root after proper healing of the jaw bone.

It is also important to remember that not all dental implant restorations are made due to improper oral care or an irresponsible lifestyle! More and more people are being born with congenitally missing  teeth, which can cause surrounding teeth to become misaligned, a possible evolutionary trend. Early diagnosis always makes the restoration process easier.

Though technology is constantly evolving, and may at one point completely replace the need for artificial dental restorations, it is of the utmost importance to try and take care of what you have! A person’s original, natural teeth are always the healthiest and most desirable option.

The most commonly challenging dental dilemma for baby boomers is combating those dull and severely worn teeth. Many people are unaware of the slow aging process of loosing tooth structures, mainly from night grinding, erosion and attrition. Bad habits and poor hygiene can also ruin teeth. The approach to rejuvenate can be as simple as having your teeth whitened, or it could be more complicated, requiring a multidisciplinary approach with extensive time and financial investment needed.

Often times, porcelain veneers might be suggested by your cosmetic dental professional to restore an aging smile, but make sure your dental health has been evaluated first. It is pertinent to check whether or not the gum and bone tissues are healthy, if there are any missing teeth that haven’t yet been replaced and if any shifting bite or teeth issues have been addressed. If you have had prior cosmetic work done, however, maintaining your investment is vital if you want your new smile to last. Follow up any cosmetic procedure with proper hygiene habits, which include brushing and flossing twice daily (and after meals), a healthy diet, no smoking and no excessive drinking (sodas or alcohol). A night guard might also be recommended.

Baby boomers have worked hard to establish their careers, family and personal well-being – now it’s time to enjoy more of your accomplishments. Get the smile you’ve always wanted, as it’s not only for vanity but also truly for your overall health.  Visit your dental professional not only for a routine cleaning and check up, but ask for a comprehensive cosmetic evaluation, including a smile analysis, TMJ and occlusion check and a periodontal exam with an oral cancer screening. When you take care of your mouth, you are taking care of a vital bodily system which performs in delicate balance with the rest of your body. When your oral cavity’s health is at risk, your overall health is being endangered.

What are the causes of missing teeth? Congenital missing teeth (teeth which never formed), severely broken down and non-restorable teeth due to dental diseases, lack of supporting bone for teeth due to advanced gum disease and physical trauma from a serious mouth injury are all common reasons. Once you do loose a tooth, your oral environment is severely affected! Besides smile-phobia, speech impairment for missing front teeth, diet complications (in which you can’t properly bite and chew food – especially with foods rich in fiber which require a good set of teeth to digest), and bite force can all be severely affected. Shift and tilt on existing teeth when the jaw exerts pressure lead to uneven loading creates jaw tension and possible accelerated wear and tear of the teeth. Additionally, tilted and shifted teeth make it more difficult to clean , which can lead to tooth decay and gum disease.

Thankfully, dentistry has greatly advanced in recent times, and you do have multiple treatment options for a missing tooth! If just one tooth is missing, dental implants are a great option which can replace the missing tooth without affecting the adjacent teeth, and preserve the bone as well. Dental implants are made of bio-compatible titanium, which are surgically placed into the jaw to preplace the missing root structure. Then, a post and crown is built on top of the implant. Other options include a dental bridge, which needs capping (a crown) of neighboring teeth to help support the artificial tooth replacing the missing one. It is stationary and feels natural (if made properly), but connected teeth need a special tool for flossing. Full or partial dentures are generally the least expensive treatment option, especially if many or all of a person’s teeth are missing. This option involves false teeth being set into a plastic base, which fits over your gums.

What will be the best treatment option for you? Please consult with your dental professional, the sooner the better!