My Blog

Posts for: October, 2021

By Scott A. Allegretti, DDS Provincetown Dental Arts
October 30, 2021
Category: Dental Procedures
Tags: dental implant  
ShouldYouTakeanAntibioticBeforeImplantSurgery

Although getting an implant requires surgery, it's usually a minor affair. Chances are good that after just a few days recuperation you'll be back completely to your normal activities.

But like many other minor surgeries, an implant procedure does pose a slight risk of post-op infection. That's especially so with any dental procedure like implant surgery, since the mouth harbors numerous strains of bacteria that could escape into the bloodstream. For most people, though, a post-op infection doesn't pose a major problem since their immune system kicks in immediately to defeat it.

But some patients with less than robust immune systems or other health problems can have serious complications from an infection. Among other things, infected tissues around an implant may not heal properly, putting the implant at significant risk for failure.

If you have a condition that makes a post-op infection problematic, your dentist or physician may recommend you take an antibiotic before your procedure. Known as prophylactic (preventive) antibiotic treatment, it's intended to give a weakened immune system a head-start on any potential infection after a procedure.

Using antibiotics in this way has been a practice for several decades, and at one time were recommended for a wide list of conditions. That's changed in recent years, though, as evidence from numerous studies seems to show the risk to benefit ratio isn't significant enough to warrant its use in all but a handful of conditions.

Both the American Dental Association and the American Heart Association recommend prophylactic antibiotics for patients with prosthetic heart valves, past infective endocarditis, a heart transplant and some congenital heart conditions. Some orthopedists may also recommend it for patients with prosthetic joints.

Even if you don't fall into these particular categories, prophylactic antibiotics may still be beneficial if you have a compromised immune system or suffer from a disease like diabetes or lung disease. Whether or not a prophylactic antibiotic is a prudent step given your health status is a discussion you should have with both your physician and your dentist.

If they feel it's warranted, it can be done safely in recommended doses. If your health isn't as robust as it could be, the practice could give you a little added insurance toward a successful implant outcome.

If you would like more information about dental implant surgery, 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 “Implants & Antibiotics.”


By Scott A. Allegretti, DDS Provincetown Dental Arts
October 20, 2021
Category: Dental Procedures
Tags: celebrity smiles   crown  
WhatChrissyTeigensInaugurationNightCapMishapCouldMeanForYou

Inauguration night is usually a lavish, Washington, D.C., affair with hundreds attending inaugural balls throughout the city. And when you're an A-List celebrity whose husband is a headliner at one of the events, it's sure to be a memorable night. As it was for super model Chrissy Teigen—but for a slightly different reason. During the festivities in January, Teigen lost a tooth.

Actually, it was a crown, but once she told a Twitter follower that she loved it “like he was a real tooth.” The incident happened while she was snacking on a Fruit Roll-Up (those sticky devils!), and for a while there, husband and performer John Legend had to yield center stage to the forlorn cap.

But here's something to consider: If not for the roll-up (and Teigen's tweets on the accident) all of us except Teigen, her dentist and her inner circle, would never have known she had a capped tooth. That's because today's porcelain crowns are altogether life-like. You don't have to sacrifice appearance to protect a tooth, especially one that's visible when you smile (in the “Smile Zone”).

It wasn't always like that. Although there have been tooth-colored materials for decades, they weren't as durable as the crown of choice for most of the 20th Century, one made of metal. But while gold or silver crowns held up well against the daily grind of biting forces, their metallic appearance was anything but tooth-like.

Later, dentists developed a hybrid of sorts—a metal crown fused within a tooth-colored porcelain shell. These PFM (porcelain-fused-to-metal) crowns offered both strength and a life-like appearance. They were so effective on both counts that PFMs were the most widely used crowns by dentists until the early 2000s.

But PFMs today make up only 40% of currently placed crowns, down from a high of 83% in 2005. What dethroned them? The all-ceramic porcelain crown—but composed of different materials from years past. Today's all-ceramic crowns are made of more durable materials like lithium disilicate or zirconium oxide (the strongest known porcelain) that make them nearly as strong as metal or PFM crowns.

What's more, coupled with advanced techniques to produce them, all-ceramic crowns are incredibly life-like. You may still need a traditional crown on a back tooth where biting forces are much higher and visibility isn't an issue. But for a tooth in the “Smile Zone”, an all-ceramic crown is more than suitable.

If you need a new crown (hopefully not by way of a sticky snack) or you want to upgrade your existing dental work, see us for a complete exam. A modern all-ceramic crown can protect your tooth and enhance your smile.

If you would like more information about crowns or other kinds of dental work, please contact us or schedule a consultation. To learn more, read the Dear Doctor magazine article “Porcelain Crowns & Veneers.”


By Scott A. Allegretti, DDS Provincetown Dental Arts
October 10, 2021
Category: Dental Procedures
Tags: crowns  
WhatYouNeedToKnowToChoosetheRightDentalCrown

In the realm of dental restorations, not all crowns are alike. And, one type isn't necessarily superior to the others. One type of crown may work better for a particular tooth, while a different crown is better suited to another.

Therefore, knowing your options can help you make a more informed choice with your dentist regarding the best crown for your needs. Here, then, is a quick primer on the main types of dental crowns used today.

Metal crowns. Early in the last century, crowns made of gold, silver or other metals were the go-to dental restoration. Because of their strength and durability, metal crowns are still used today, mainly in back teeth that encounter heavy biting forces. Their drawback: They're decidedly not the color of natural teeth and so can stand out if they're placed in the visible "smile zone."

PFM crowns. The first crowns made with dental porcelain solved the appearance problem, but couldn't adequately handle biting forces as well as metal. Out of this came the porcelain fused to metal (PFM) crown, which contains an inner core of metal overlaid with tooth-colored porcelain. Providing both strength and life-likeness, PFM crowns were immensely popular until the mid-2000s.

All-Ceramic crowns. The development of porcelains more durable than earlier versions eventually dethroned the PFM (although the latter is still used today). Sixty percent of the crowns installed in recent years are all-ceramic, many reinforced with a strength material known as Lucite. Many all-ceramic crowns reaching the 15-year mark are still in place and functioning.

All of these crowns continue to be viable options for dental patients. The biggest factor in choosing one particular crown over another is the type of tooth involved and its location. As mentioned before, metal or PFM crowns are usually better for back teeth where durability is a higher priority than aesthetics. All-ceramics work well in high-visibility front teeth that normally encounter lighter biting forces than back teeth.

Regardless of which kind eventually caps your tooth, any of today's modern crowns will function as intended. But the best crown for you will be the one that both protects your tooth and enhances your smile.

If you would like more information on dental crown restorations, 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 “Porcelain Dental Crowns.”