Home

Are metal crowns dangerous

The risks associated with getting a metal dental crown include a possible allergic reaction to the metal in the crown. People who have known allergies to base metal may want to try a dental crown made of porcelain or gold. Some metal used in dentistry contains mercury, which has stirred controversy over its safety Some dental restorations, like dental crowns, may include traces of these metals. Crowns made of porcelain, composite resin, or gold pose no risks from MRI. If a patient has a crown made with metal, or of porcelain fused to metal, they should consult their dentist before getting an MRI. The age of a crown may be a clue to the material used Yes, people with metal crowns often experience significant sensitivity to hot and cold drinks. Metal is a great conductor of heat, so when the hot or cold liquid touches your metal dental crowns, the temperature change gets conducted right down into the tooth. This can end in painful results If you are looking for a crown that looks natural, a porcelain or resin material may be a better fit for you. They Have Shorter Lives Than Other Metals; The other disadvantage to stainless steel dental crowns is that this type of metal has a shorter life than other metal crowns, such as those made from gold or metal alloys

What are the risks of getting a metal dental crown

This, as we have mentioned is a problem with porcelain crowns that have a metal sub structure (VMK or PFM) when the gum has receded. Recession occurs naturally as we grow older, but may be accelerated with gum disease or toothbrush abrasion. The metal underneath that was once hidden becomes visible In the manufacture of fasteners crowns are used iron, Nickel and cobalt, which react to electromagnetic effects. However, heating of these metallic elements occur is insignificant (less than one degree), so the damage to the surrounding tissues of the oral cavity harm the metal will bring Crowns typically are mounted on a base made of nickel, an extremely toxic metal. Toxic allergenic metals in metal crowns The use of metal alloys in prosthetic crowns leads to all types of metal ions building up in high concentrations in the gumline surrounding crowned teeth (visible as dark lines). Aluminium from ceramic/porcelain crowns The Dangers of dental crowns, root canals, and pulling teeth. Beware: If you consistently go to your regular 6 month dental check-ups, and your dentist tells you that you need a dental crown, a root canal, or a tooth pulled, it is your dentist's fault (assuming no physical trauma). It means that your dentist missed a cavity that was forming when it was at the point where it could have been.

Are Dental Crowns and MRI a Dangerous Combination

Metal crowns withstand biting and chewing forces well and probably last the longest in terms of wear down. Also, metal crowns rarely chip or break. The metallic color -- and the high price of gold. We know that the more we can see, the better we can treat. But sometimes metal dental restorations like dental crowns and metal amalgam fillings, can interfere with imaging, especially MRI. Here are some of the effects that these metal restorations can cause, and how to avoid them. Four Types of Effect In addition, metal crowns disrupt the natural smile and are an obvious distinction between restored and unrestored teeth. PFM crowns are ideal for back teeth in order to maintain a natural-looking smile. PFM crowns can sometimes last longer than porcelain crowns whose average lifespan is 10-15 years Types of crowns - Ceramic, porcelain-fused-to-metal, all-metal (gold). Alloy considerations - Precious, semiprecious, nonprecious. / Pros & Cons; 6 factors to consider when choosing which type of crown makes the best choice. Crown fabrication / placement. - The dental crown procedure Perhaps the strongest crown made, is one made from metal. The options include gold, or crowns made from a combination of alloys like nickel, chromium and palladium. For patients that need or want metal crowns on the very back teeth, we typically only use high noble gold since it casts the most accurate and lasts the longest

Untreated decay may eventually lead to an infection (abscess). In some cases, replacing a dental filling may benefit the long-term health of your tooth. Most metal dental fillings are dental amalgam — a stable alloy made with mercury, silver, tin, copper and other metals If you don't know what the metal is there is no way to know if it's dangerous to swallow. I suggest that stainless steel is not toxic and if it's stainless in the bridge and pieces have broken off I suggest it's because it was worn out. My grandson has a couple of metal crowns Most people have never heard of zirconium but this toxic heavy metal is used in society everyday and its not uncommon to find some degree of zirconium toxicity in people. Zirconium is toxic to humans and it is also radioactive, it is considered an irritant at low levels and higher levels are considered immediately dangerous to life and health Porcelain-fused-to-Metal . The strength of this dental crown is only behind metallic ones. A small drawback is that, when using this type of dental crown, more wearing to the opposing teeth occurs than for the previous 2 types mentioned. Porcelain-fused-to-Metal dental Crowns are sued on the front and back teeth. These crowns look like normal. Metals: Dental gold is the best metal option, but some dentists also use other alloys such as chromium or nickel. Porcelain: An all-porcelain or porcelain-fused-to-metal crown is the go-to option for visible teeth that need crowns. Resin: Crowns made entirely from resin are a cheaper option than the others. But they're cheap for a reason.

A decade ago it was only the health nuts that were interested in heavy metal detox. Today however, research links several diseases to heavy metal poisoning, mercury amalgam and toxicity. Heavy metal detox is now a household phrase. In this article, Dr. Dan Pompa gives us his personal account of mercury toxicity from the silver fillings in his teeth and his success with mercury. Related information about porcelain crowns: You may want to check our general page about dental crowns to learn about that.; More information about the differences between porcelain crowns and porcelain fused to metal crowns.; Porcelain crowns for front teeth, and other crown choices for front teeth.; Some dentists are proposing placing Lumineers over old crowns rather than replacing them. Dr.

6 Reasons You Should Replace Your Metal Crown

Like metal crowns, these do not have a very cosmetic appearance, but they are very durable. Solid zirconia: Dental crowns made from zirconium mimic the appearance and texture of a natural tooth, but do not chip or fracture as easily as porcelain or ceramic crowns. Many digital fabrication machines can create these crowns in one day The metal of the crown totally obscures what is inside! When you have a leaking crown, get it looked at by a dentist ASAP. It means that saliva and bacteria are seeping in between the crown and the tooth, which will lead to decay of the tooth. By the time you have this metallic taste, it is likely the decay is severe, which could mean the tooth. Clinicians who wish to provide patients with excellent dental restorations often choose zirconia crowns. These crowns are chosen over conventional PFMs (Porcelain Fused to Metal) or full-gold crowns due to their superior strength, durability, and excellent aesthetics. Some dentists exclusively use zirconia over all-ceramic restorations, particularly when restoring a single tooth A dental crown is a tooth-shaped cap that is placed over a tooth to cover the tooth to restore its shape and size, strength, and improve its appearance. The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line. A dental crown may be needed in the following situations

The Pros And Cons Of Stainless Steel Dental Crowns - Think

Crowns and Bridges. Crowns and bridges are mostly made out of metal. If you ask your dentist for a porcelain crown, he or she may have a porcelain piece made that's baked onto the metal. These metals act as a substructure for strength . . . but they also contain nickel. Nickel is cancer-causing Most metal dental fillings are dental amalgam — a stable alloy made with mercury, silver, tin, copper and other metals. Although concerns have been raised over the years about the safety of mercury in dental amalgam, there is no conclusive evidence to support that you're better off having amalgam fillings replaced with alternative materials Crowns 101. Before looking more closely at that question, let's look first at what crowns are. Also called a cap, a dental crown is an artificial cover for a tooth. The tooth must be ground down to allow for the crown to be placed on top of it. There must be some tooth remaining for a crown to work; a crown is not intended to replace missing. Dental crowns, dental bridges Risks and complications. It is a relatively good option even if the connection with the metal frame is not as strong as the one created at the dental laboratory. Refabrication of the entire crown (or bridge) Sometimes, for various reasons, the partial veneers cannot be reattached (veneers are fractured into.

Dentist for Safe Amalgam Filling Removal in Rockville Maryland

Dental crowns are a great solution for replacing or repairing a damaged tooth. Almost everyone will need a form of repair or replacement at some point. Single crowns are the most common restorative solution with approximately 2.3 million implant-supported crowns being made annually. COMMON CROWN PROBLEMS When you have a crown placed at Riverside Dental, we do everything we can to ensure that. CEREC crowns may be a good option for you if you're looking for a durable, natural-looking crown, and you don't want to wait for a couple of weeks to get it

Metal crowns can be made of copper, gold, and other metals. Metal crowns are often used on back teeth because of the metal's strength and durability. Porcelain-fused-to-metal crowns are made of metal with tooth-colored porcelain laid over it. They are typically stronger than ceramic crowns, but the metal may become visible near the gums over. Mercury Exposure. A hidden danger that has become a concern to some patients is that the mercury can slowly be released from the amalgam fillings that are under the gold caps. This can occur when a person chews, swallows, drinks, grinds her teeth or breathes. The ionized mercury can be absorbed by the syliva, tooth pulp and gum tissues and. Metal-free and metal alloy-free solutions are available for teeth replacement, from the implant embedded in bone to the visible crown in the oral cavity. Zirconia (ceramic) dental implants and all types of all-ceramic restoration (crown, bridge, retentive bars etc) are available Short Answer: 24-karat Gold, Grade-1 Titanium or Zirconia (in certain cases) Long Answer: There are many materials crowns and fillings can be made from: Fillings, for example, can be made from a composite resin (basically hard plastic), amalgam (mercury metal filling), porcelain (there are many types) and cast metals (gold or non-precious alloys) The risks associated with dental crown placement include risks that can happen with any dental procedure as well as risks that are specific to having a crown. These include: side effects of pain medicines used to control the pain after crown placement. tooth decay that develops under the crown if the crown is not fitted correctly to your tooth

Dental Crowns NYC | White Dental Crowns

What Dental Crown Problems and Risks Can You Have

Can you do an MRI with metal crowns? - Medicin

  1. A Comparison of Dental Crown Materials Dentistry now offers more choices than ever before when it comes to restorative materials for teeth. Improvements in the beauty, strength, and durability of materials like porcelain and zirconium have made cosmetic restorations more natural and lifelike than some of the best materials in use just 10 or 15 years ago
  2. The effects of mercury-laden fillings are scary. These fillings are one of the top contributing causes to mercury poisoning. This can cause a wide range of problems, including tremors, insomnia, headaches, nerve damage, kidney problems, and respiratory failure.. In one recent study by the University of Washington, researchers found that the low-level release of mercury toxins into the body.
  3. g loose is a common problem for dental crowns. But if you respond properly, it won't necessarily harm your tooth, and the crown can often be put back in place. The first thing to do when you have a loose crown is to contact your dentist. The sooner you can get in, the.
  4. Porcelain-fused-to-metal crowns are very strong. - While not as strong as all-metal crowns, dentists routinely place PFM caps on back teeth. Porcelain-fused-to-metal crowns can produce pleasing aesthetics. - While not as translucent, the cosmetic appearance of PFM's can often approach, and possibly equal, those of all-porcelain caps
  5. All-metal crowns ar e stable and nearly indestructible, since they have. no porcelain veneer that could chip or br eak. They also require less dangerous filling material. Another major concern.
  6. Once a crown is cemented or bonded, it is there for a long time. There are rare instances where a crown can be removed with special techniques. It may damage the crown so that it can't be re-cemented and it is possible to fracture a portion of the..

Dental crown placement: potential risks & complication

  1. This gives us the beauty and translucence of porcelain with the strength of metal. These crowns have both high tensile strength (from the metal) and high compressive strength (from the porcelain). The porcelain fused to metal crown was the most common crown to be made and placed from the 1960's to well into the 2000's
  2. March 5, 2015. Answer: Cerec Crown Failures. The Cerec technology is used world wide successfully so a failure is not the responsibility of Sirona. All porcelain crowns such as these whether lab made or cerec made can fail, especially in the lower molar areas where the biting pressure is the greatest of any teeth
  3. Patients with any type of non-removable metal in their heads (with the exception of braces or dental fillings), should not receive rTMS. Failure to follow this rule could cause the object to heat up, move, or malfunction, and result in serious injury or death. The following is a list of metal implants that can prevent a patient from receiving rTMS
CEREC Crowns Colorado Springs | Dental Crowns

Other alloys, such as nickel in the metal base of bridges and under porcelain crowns, have been documented to lower the T-4 and T-8 lymphocyte levels (David Eggleston,DDS. Effect of Dental Amalgam and Nickel Alloys on T-Lymphocytes: Preliminary Report, J. Prosthetic Dent, 1984, 51(5);617-623. A crown is a type of cap that completely covers a real tooth. Crowns available on the NHS can be: all metal (such as gold or another alloy) porcelain fused to metal. all resin. all ceramic. stainless steel - used to preserve badly decayed baby teeth in children, or as a temporary measure on permanent teeth. Your dentist will offer you the. In 2001, a 6-year-old boy named Michael Colombini died in Westchester, New York, after an oxygen canister flew at his skull during an MRI for a benign brain tumor. The boy's family and the. Yes, zirconia crowns are considered to be metal-free. Dental zirconia is zirconium dioxide (ZrO2), which is a crystalline oxide of metallic zirconium.. A zirconia crown is made of this crystalline oxide form of zirconium and is considered to be a ceramic crown and not metal (like gold, silver, or porcelain fused to metal crowns).. Although zirconium is a metal, its oxide, zirconium dioxide.

First, Find the Crown. Usually a crown will pop off while you are eating, flossing or brushing your teeth. Find the crown if you can. If you swallowed it, it will usually pass without a problem, but you will need to have a new crown made, whereas the old crown can most likely be reattached. Many dentists will reattach a crown free of charge if. Gold round crown, Bridal Crowns Crystal Tiaras and Crowns Royal Queen King Diadem Bride Wedding Hair Jewelry Pageant Circel Head Ornaments UStiaracrown 4.5 out of 5 stars (788) Sale Price $39.99 $ 39.99 $ 49.99 Original Price $49.99 (20% off.

The Dangers of crowns, Root canals and Pulling teeth

  1. e whether an MRI is the appropriate exa
  2. g) than their all-metal counterparts. For example, metal crowns can be as thin as 1.5 mm on their chewing surface whereas PFM crowns need to be at least 2 mm thick
  3. Inspect the tooth area and crown. If no pieces have chipped off of either the tooth or the crown, you should be able to set the crown temporarily back in place. Contact a dentist and do not attempt to reattach the crown if the crown is filled with hard material or a portion of your tooth, rather than mostly hollow. Your crown may be attached to a metal post, and it is hard to fit the sha
  4. Metal crowns and fillings aren't the most attractive dental treatments. They can cause cracks in your teeth, tooth sensitivity, and they look unnatural. This has likely caused you to consider replacing your metal fillings and crowns with a more natural-looking solution
  5. Your Crown is Damaged. Dental crowns may be fashioned from varying metals or from porcelain, and the materials used for crowns has developed over time to become sturdier and more aesthetically pleasing. Crowns made from porcelain or crowns which contain a porcelain component fused to metal are more likely to chip or crack
  6. us one root canal resulting from a cavity I let get out of control, oops). I don't recall any sensitivities or issues with chewing or anything that resulted from the metals. posted by Verdandi at 3:19 PM on December 9, 201
  7. ates the need to make adjustments to the crown, which in turn saves precious time chairside

Metal free dental implants are metal-free Sensitivities or allergies to metals commonly used in dentistry can be a problem for many people. In addition to sensitivity and allergy issues, holistic dentists have concerns about electrical effects of titanium and titanium alloy implants with their abutments and crowns Being a physician, at times we field calls from the local dentist asking for urgent help with their patients that may have swallowed a dental instrument, crown or a healing abutment that was not torqued down after impression taking. This is why it is so critical to torque-down anything and everything that sits o

Be Aware of Possible 'Galvanic Toxicity' Occurring in Your

This image shows gum recession past the crowns on the inside aspects of some upper teeth. There's crown-porcelain, then the metal substructure of these types of crowns, then exposed root: This next picture was taken with the Soprolife cavity-detecting camera. With this device, green tooth structure is healthy, and red means a decayed area If the metal gets into the water supply, it causes a double problem, since it eventually builds up in fish that are eventually consumed by people. As a result, many types of fish now contain levels of mercury dangerous enough to be considered a serious hazard. In fact, methylmercury is now one of the main causes of mercury poisoning in humans

Dental Crowns: What Are They, Types, Procedure & Car

Dental crowns are a destructive method and require cutting approximately 75% of the tooth structure, and can harm the pulp (nerve) of the tooth. Unfortunately, over 37 million crowns are placed. Stainless steel crowns are preformed crowns used to cover baby teeth for children. Gold dental crowns have traditionally been the most durable and require less of the tooth to be removed or shaved down. The primary advantage of porcelain crowns is their esthetics, while newer types of ceramic crowns have become increasingly more durable

Dental-Related Chronic Illnesses and Heavy Metal Toxicity

  1. Dental implants are often made of titanium alloys. Implant therapy currently promises a good long-term result without impacting health; however, its success depends on many factors. In this article, the authors focus on the most common risk factors associated with metallic surgical implants. Titanium-induced hypersensitivity can lead to symptoms of implant rejection
  2. Most crowns are made from ceramic material, in some cases fused to metal. Some patients opt for long-lasting crowns made of gold or other strong metals, but many patients prefer ceramic material because it can be made to look like neighboring teeth. Porcelain crowns are particularly common, and as they age, many do become loose and fall out
  3. ing process. Some examples of tramp metal include bucket teeth, manganese steel mantles, bore crowns, bar scrap, chains, and tools. The bad news: Tramp metal is not a good thing to find in your
  4. Porcelain Bonded to Metal. Some crowns are made with porcelain fused to metal. These were the result of trying to marry the beauty of porcelain with the functionality and longevity of gold. The most common types of bonded porcelain crowns are made with gold. The lower layers of the crown are gold, while the final layer is made with porcelain
  5. Generally, CEREC crowns are less aesthetic than other all ceramic crowns but more aesthetic than porcelain fused to metal crowns. However, the crown aesthetics are largely down to the dentist's skill, experience and attention to detail. Because the dental lab is not involved, the dentist will have to spend time to stain and glaze the porcelain

Should You Go Metal or Porcelain When Your PFM Crown Fails

  1. In conventional dentistry, titanium dental implants are used often because of properties that allow them to bond with living bone tissue, a process known as osseointegration. Today, over 95 percent of dental implant procedures performed use titanium alloys. Although prevalent, titanium dental implants are not the only option in reconstructive dentistry. Man
  2. Many of these materials evolved over time while others have been designed (e.g., composites). These materials are suitable for many particular applications, although there are some applications that are less than optimal. Metals are used for amalgams, casting alloys, and porcelain fused to metal (PFM) restorations
  3. If the patient wants to have the crown replace, as already mentioned in this thread, the most important thing as a clinician that i'm going to do prior to working on that tooth is take a critical look and figure out why the porcelain fractured in the 1st place, so as to do my best to prevent a future porcelain fracture

MRI involves the use of a strong magnetic field capable of pulling on many metal objects. Thus, for safety reasons, the MR staff must determine if you unknowingly have metal in your body. This includes small pieces of metal in your eyes, metal implants, prosthetic devices that may contain metal, surgical clips and/or other implanted objects. Mercury poisoning symptoms can arise from dental amalgam mercury fillings, also called silver fillings, as they continuously release mercury vapo Replacing metal filling also know as Amalgam, with porcelain depends on the metal filling condition and your dentist's recommendation. They may be replace for cast gold restorations, porcelain, and composite resins. Gold and porcelain restorations take longer to make and can require two appointments. Porcelain fillings, or white fillings, are. Traditional fixed bridge: This is the most common type of bridge.It includes a crown on either side of the pontic(s).; Maryland dental bridge or resin-bonded bridge: This is often used to replace front teeth.Instead of crowns, it uses porcelain or metal frameworks with wings that are bonded to the back of your teeth on either side of the gap Dental crowns (caps) for primary (baby teeth) are tooth-shaped coverings cemented to the tooth for the purpose of restoring the tooth to its original shape and function. In the practice of pediatric dentistry, it often becomes necessary to repair and restore (returning a tooth to its original shape, function, and, often times, appearance.

Crowns & Tiaras — King & Queen Crowns, Princess Tiaras. Crown yourself with a headpiece befitting the costume. From faux diamond-studded princess tiaras to plush padded king and queen crowns with faux fur trim and jeweled ornamentation, Party City has everything you need for a royal coronation You may be experiencing throbbing tooth pain under your crown for any number of reasons, like: A Traumatized Nerve or Infection. If you didn't have a proper root canal procedure to remove your tooth pulp (the center of the tooth where the nerves and blood vessels are), your crown could be putting pressure on a traumatized nerve Dental amalgam is a dental filling material used to fill cavities caused by tooth decay. Dental amalgam is a mixture of metals, consisting of liquid (elemental) mercury and a powdered alloy. In this video, Dr. Richard Stevenson, stevensondentalsolutions.com, demonstrates the steps required to prepare a canine on the typodont for a ceramo-metal cr.. Before you receive an MRI, a technician will ask you to remove any metal items you are wearing, such as jewelry, glasses or belt buckles. You should tell her about any medical implants you have. The MRI machine's powerful magnetic field attracts ferrous, or iron-containing, metals and can cause serious injury

Dental porcelain (also known as dental ceramic) is a dental material used by dental technicians to create biocompatible lifelike dental restorations, such as crowns, bridges, and veneers.Evidence suggests they are an effective material as they are biocompatible, aesthetic, insoluble and have a hardness of 7 on the Mohs scale. For certain dental prostheses, such as three-unit molars porcelain. Regular checkups can prevent decay under a crown before it happens. Not brushing and flossing regularly. Plaque from bacteria starts to form which affects the tooth under the crown. The dental crown which is ill fitting can also cause a buildup of bacteria, affecting the tooth under the crown. While tooth decay under a crown is a common. Aluminum is the most common metal in the earth's crust, almost twice as abundant as iron. And one common class of aluminum minerals, collectively called alum, has been in use since at least Greek. The Effect of a Chimney Fire on Your Chimney Masonry Chimneys When a chimney fire occurs in a masonry chimney - whether the flue is an older, unlined type or tile lined to meet current safety codes - the high temperatures at which they burn (around 2000°F) can melt mortar, crack tiles, cause liners to collapse and damage the outer masonry material Crowns are not designed to bear the brunt of your bite. If your bite force is not evenly distributed across your dental arch, your crown can sustain irreparable damage. Aesthetics. Crowns that are composed of porcelain-fused-to-metal (PFM) feature a metal base. Over time, the metal can begin to show through, causing the tooth to take on a dark hue

Is palladium a toxic metal? My crown has palladium in it

Removable partial dentures usually consist of replacement teeth attached to pink or gum-colored plastic bases. Depending on your needs, your dentist will design a partial denture for you. A partial denture may have a metal framework and clasps that connect to your teeth, or they can have other connectors that are more natural looking These crowns look better because from the front they look white. In order for the white facing to adhere to the metal, extra bulk must be added, making these crowns look bulbous or rounded. The white facing also has a tendency to chip off over time, exposing the silver crown underneath The chimney crown is the top level of the chimney. It is usually completed from leftover mortar or cement during chimney construction and is the basic first line of defense for protecting your chimney from its most dangerous threat: water. When properly installed and maintained, the sloped surface directs much of the water away from the chimney A crown margin should be at least 2 to 2.5 millimeters away from the osseous crest, or half a millimeter subgingivally. If a crown margin is placed too close to the bone, the tissue will react, triggering an inflammatory response. You would expect this inflammatory response to eventually destroy some bone, thus re-establishing the optimum 3-4. Porcelain crowns can chip like normal teeth. Your dentist may use a resin that matches the colour of the crown if the chip is not too large. Dental Crowns can last from 5 to 15 years or more, which usually depends on the type crown. Porcelain crowns are more fragile than metal crowns and may need to be replaced

Metal (gold) dental crowns: Advantages, disadvantages

All-Metal Dental Crowns (All-Titanium Dental Crowns) The dental crown, regardless of its composition (titanium, gold, nickel, chromium, tin, etc.) is deemed as identical in terms of function and longevity by patients. But, there are really varying differences in terms of crown fabrication, placement and longevity among the dental alloys (When Detox is Dangerous - Part 1 of 3) The Truth About Heavy Metals, Mercury Poisoning, and Mercury A decade ago, only the health nuts were interested in heavy metal When Detox is Dangerous: Cellular and Heavy Metal Detox Done Right Read Mor The amounts of cobalt and chromium released to the saliva in individuals wearing cobalt-chromium partial dentures have been measured. Saliva was collected during a 5-min period, both with and without dentures in the mouth, and the two samples compared. More than 80% of the 30 cases showed increased The density of fully sintered feldspathic porcelain is around 2.45 g/cm 3 and decreases as the amount of porosity increases. The density of ceramic materials also depends on the amount and nature of crystalline phase present. The theoretical density of 3Y-TZP dental ceramics is 6.08 g/cm 3, assuming that the material is pore free

BlogDental Services Channahon, IL | Pediatric DentistryFingers of Steel – Fingerboarding Galore - TestspielChimney Stains, Discoloration, Leak, Diagnosis, CleaningDental Services Lockport, IL | Emergency Dentistry | GumAre Your Gums Healthy? How to Tell if You Have Gum Disease