Rajeev Kulkarni DDS

Dentist In Wethersfield

71 Wells Road, Wethersfield, CT 06109

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Posts for category: Dental Procedures

By Rajeev Kulkarni DDS
January 14, 2015
Category: Dental Procedures
Tags: fillings  
ItsanArtDeterminingToothColorinCompositeResinRestorations

It takes a lot of skill, experience, talent and artistry to create tooth restorations that look so natural that no one can tell them apart from the originals. To do so requires understanding of the normal anatomy of a tooth as well as of the interactions of light and color.

How the anatomy of a tooth determines color

The color that we perceive when looking at a tooth results from the combined appearance of the tooth’s center core (dentin layer) and its covering enamel. Going from the outside in, the enamel is made of tightly packed crystals of calcium, which cause it to be one of the hardest substances naturally produced by animals. The crystals are also responsible for a tooth’s brilliance and translucence. The dentin is more like bone, a porous living tissue composed of microscopic tubes, interspersed with more calcium crystals. In the very center of the tooth is a central chamber containing the pulp and nerves.

Each of these layers has its own physical and optical properties. Since the enamel is translucent and the dentin is more opaque, most of the tooth’s color comes from the dentin and is transmitted through the enamel layer. Factors that affect this transmission include the thickness and age of the enamel as well as external tooth whitening.

If the enamel is more translucent, more of the color of the dentin shows through. If it is more opaque, the enamel absorbs and reflects light so that less color is visible and the enamel looks brighter.

The language of color composition and reflected light

Color means the whole spectrum in the rainbow. The spectrum is made up of the three primary colors — red, blue, and green. When all are combined, they create white light.

Hue refers to the brightest forms of the colors. The color we perceive depends on the dominant wavelength of light that is reflected by an object.

Value refers to a color’s lightness or darkness. A brighter color has a higher value.

Chroma is the amount of identifiable hue in a color. An achromatic color (without hue) appears gray.

Saturation is a measure of a color’s intensity.

This terminology of color is used not only by dentists and dental technicians, but also by a wide range of artists. It implies expertise and understanding of how colors work, how they vary and change and affect one another.

Contact us today to schedule an appointment or to discuss your questions about bonding to repair chipped teeth. You can also learn more by reading the Dear Doctor article, “Artistic Repair of Front Teeth with Composite Resin.”

By Rajeev Kulkarni DDS
December 30, 2014
Category: Dental Procedures
BracesHaveComeaLongWaySaysVannaWhite

Everyone knows Vanna White as the elegant co-host of the popular game show Wheel of Fortune. But here's one thing you may not know: White is listed in the Guinness Book of World Records as television's most frequent clapper, with an average of 720 claps per show — that's over 28,000 per season! And here's something else: the star with the megawatt smile wore braces as a kid, and she's not too shy to talk about it.

“I only had to wear them for a year and it was a good experience for me,” she told an interviewer for Dear Doctor magazine. But when it was time for her son to get them, White noticed something different. “We used to have those silver bands that went all the way around each tooth, and they don't have that anymore. It is fascinating to see how far they have come.”

We're glad she noticed! In fact, orthodontic appliances have advanced a good deal in the past decade or so. Instead of using metal bands, brackets holding the wire part of braces are now typically attached directly to the teeth with a dental adhesive. For an even less obtrusive look, ask about using colorless brackets instead of metal ones — that way, the only part that's clearly visible is the thin wire itself. And in some situations, braces can be placed on the lingual (tongue) side of the teeth, making them all but invisible.

Another type of nearly invisible appliance is the clear orthodontic aligner. The aligner system consists of a series of precision-made transparent “trays” that fit over the teeth. Each tray is worn for a few weeks, and each moves your teeth by a small amount; together, they can help correct mild to moderate orthodontic problems. And the best part — they're really hard to notice! That makes them perfect for both adults concerned about a “professional” look, and image-conscious teens.

So if you're a TV star — or if you'd just like to have a brighter and better smile — it's never too late to get started! If you would like more information about orthodontics, please contact us for a consultation. You can learn more in the Dear Doctor magazine articles “The Magic of Orthodontics” and “Clear Orthodontic Aligners.”

ProtectYourVeneersWithaFewCommonSensePrecautions

Porcelain veneers are a proven way to achieve a new smile. Composed of thin layers of dental porcelain and other materials laminated together to form one life-like unit, veneers are applied to the outside of a prepared natural tooth to enhance its appearance. Given the right circumstances, they’re an excellent solution for correcting mild to moderate spaces between teeth, slight deviations in tooth position, and problems with the color and shape of a tooth.

Veneers are very strong and can resist most of the forces you generate when you chew your food. But dental porcelain is also a form of glass — strong but not indestructible. Following a few maintenance guidelines will help you avoid damaging a porcelain veneer and incurring additional dental care costs.

Practice daily oral hygiene. Although veneers aren’t subject to disease or decay, the tooth structure they cover and the surrounding gum tissues are. You should, therefore, brush and floss veneered teeth just as you would any other tooth. And, there’s no need for specially formulated toothpastes — any non-abrasive fluoride brand will work.

Avoid excessive biting or chewing. While it’s a good practice for natural teeth to avoid applying too much biting force to hard materials, it’s especially important for veneers. Attempting to open hard-shell nuts with your teeth or chewing on bones, pencils and other hard objects are just a few of the activities that could lead to a shattered veneer.

Use a bite guard for clenching habits. People who excessively grind or clench their teeth (a condition called bruxism) can also put undue stress on their veneers. We can help alleviate some of this stress by fashioning a bite guard you wear at night. The guard will help protect your veneers from teeth grinding while you sleep.

Limit foods and drinks that cause staining. Tea, coffee, wine and similar substances can leave teeth stained and dingy. Although your new veneers won’t typically stain, the natural teeth around them can — the brighter veneers would then stand out prominently from the dingier natural teeth.

Porcelain veneers are proven “smile changers.” Taking care of them with a few common sense precautions will ensure the change is long-lasting.

If you would like more information on porcelain veneers, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Smile Design Enhanced With Porcelain Veneers.”

ActressKatherineHeiglStraightenedHerSmilewithInvisalignClearAligners

Many adults these days are opting for clear aligners to correct orthodontic problems that have long bothered them. Katherine Heigl is a perfect example. She had one tooth that was out of alignment, and wanted to have it fixed before her wedding day.

“I got them [clear aligners] because of this wonky tooth,” Heigl told In Style magazine not long ago. “It's awesome because every two weeks you switch to a new retainer. Pretty much the perfect way to describe Invisalign is Netflix for your teeth.”

That's actually a pretty good way to describe this highly user-friendly form of orthodontic treatment. Clear aligners are transparent, plastic oral appliances that are changed every two weeks so that your teeth can be moved a little bit at a time, according to a carefully staged sequence. Though they cover your teeth completely, clear aligners are barely noticeable.

In fact, when Heigl excused herself before taking out her aligners to eat, her In Style interviewer said, “Who knew you wore them? I guess that's the point of Invisalign.”

Being able to remove the aligners for eating and, more importantly, teeth-cleaning, is another major advantage of this method of straightening teeth. Successful orthodontic treatment for adults depends on good periodontal health (“peri” – around; “odont” – tooth), and the best way to keep your gums and the underlying bone that supports your teeth healthy is to keep up an effective daily oral hygiene routine.

Clear aligners have been improved in recent years to correct more complicated malocclusions (“mal” – bad; “occlusion” – bite) than previously; they can even work well for teenagers. But there are still some cases that call for traditional braces. We would be happy to explore all the different options for orthodontic treatment with you, whether you have crowded teeth, an overbite or underbite, or just one “wonky tooth.”

If you would like more information about clear aligners, please contact us or schedule an appointment for a consultation. You can also learn more about clear aligners in general by reading the Dear Doctor magazine article “Clear Aligners For Teenagers.” Dear Doctor also has more on “Wedding Day Smiles.”

By Rajeev Kulkarni DDS
October 20, 2014
Category: Dental Procedures
RealityStarKeptHisEyesonthePrizeNewTeeth

If you follow the hit TV reality show Amazing Race, you know that professional-hockey-playing brothers Bates and Anthony Battaglia won the $1 million prize in the latest globe-spanning competition. You may also have witnessed Anthony removing his false front teeth from time to time — like when he had to dive for pearls in Bora Bora. Since he plans to resume his sports career, Anthony wears a partial denture to fill the gap in his classic “hockey mouth.” He has said that when he finally hangs up his skates, he will use some of his Amazing Race prize money to get new, permanent teeth. When it's time to get that new smile, Anthony, like many people, will have to choose between two good options for permanent tooth replacement.

The preferred option for most people is dental implants. In this system, tiny titanium posts substitute for the root part of your missing tooth (or teeth). These are placed beneath your gum line in a minor surgical procedure we perform right here at the dental office. The amazing thing about dental implants is that they actually fuse to your jawbone, allowing your replacement teeth to last a lifetime.

The titanium implant itself is not visible in the mouth; the part of an implant tooth that you see is the lifelike crown. Virtually indistinguishable from your natural teeth, the crown is attached to the implant above the gum line. Dental implants can be used to replace a single tooth, multiple teeth, or even all your teeth. You don't necessarily need one implant for every tooth because implants can support bridgework or even a complete set of prosthetic teeth.

The second-best option is a natural-tooth fixed bridge. In this system, we use healthy natural teeth on either side of the empty space left by a missing tooth (or teeth) as supports for one or more of the prosthetic teeth that will fill the gap. The downside is that in order to turn these healthy teeth into supports (which are referred to in dentistry as “abutments”), we need to remove some enamel and then cap them. This procedure can leave those teeth more prone to decay than they were before. But with regular dental exams and good oral hygiene on your part, bridgework can last many years.

Which system is right for you? That's a question we would be happy to help you determine... even if you haven't won a large jackpot or gone pearl diving in Bora Bora. If you've been looking forward to the day when you can have permanent replacement teeth, why wait? Contact us or schedule an appointment for a consultation. We will help you find your ideal solution to the problem of missing teeth! For more information, please see the Dear Doctor magazine articles “Dental Implants vs. Bridgework” and “Dental Implants: Your Third Set of Teeth.”