Tag Archives: Dental implant

Teeth Implantation

X-Ray picture of two cylindrical dental implan...

Image via Wikipedia

Introduction:
Until a few decades back when natural tooth was lost, it was replaced by a removable partial Denture, or a fixed prosthesis, Each of these treatment options had their own disadvantages, With the advancement of technology and research, dentistry today has a better option for the replacement of a natural tooth – with dental implants. Dental implant is an artificial substitute to replace the root portion of teeth and put into the bone and gums of mouth. Replacement teeth are then fixed on to these new roots.Dental Implants are a Functional and Desirable Alternative to Conventional Bridges and Dentures . Dental implants allow people who are with missing teeth to be able to smile, speak and chew well and comfortably.
.CLICK & SEE THE PICTURES
What is Dental Implant?
A dental implant is a small man-made titanium screw that serves as the replacement for the root portion of a missing natural tooth. The implant is placed in the bone of the upper or lower jaw and allowed to bond with the bone and serve as an anchor for the replacement tooth. Dental implants can be used to replace a single lost tooth or many missing teeth. Implant supported replacement teeth look, feel and if you’re missing a tooth or more, you may find that there are other things you miss. You may miss your natural smile. You may miss the ability to chew apples, crackers and other food you desire. Maybe you feel self-conscious about your teeth and mouth, or discomfort as remaining teeth shift. And perhaps you’ve experienced muscle strains, an inability to speak clearly, headaches or unease in familiar situations at work, with friends or at home…..

How Do Dental Implants Work?
Dental implants act as artificial roots. They are surgically placed into your jaw, and are the closest substitute to natural teeth in form and function. Once a dental implant is firmly integrated into your jaw, it can be used to support single crowns, bridges and dentures. Whether you are missing one tooth, several teeth or all of your teeth, dental implants may be an option for you.

*Surgical Options

* Restorative Options

* Before & After

Types of Implants :
There are three types of implants :

1. Endosseous Implant : These implants are usually shaped like a screw or cylinder. They are placed within the jaw bone.
2. Subperiosteal Implants : These Implants consist of mental frame work that attaches on top of the jaw bone but underneath the gum tissue.
3. Transosteal Implant : These implants are either a metal pin or a U – shaped frame that passes through the jaw bone and the gum tissue, in to the mouth.
Implants are made from metals and alloys such as Titanium, Titanium-Aluminium-V alloy, Chromium-cobalt-mobedium alloy, ceramics.

Advantage of Implant over traditional prosthesis:
The goal of modern dentistry is to return patientas to oral health in a predictable fashion. The partial and complete edentulous patient may be unable to recover normal function, esthetics, comfort, or speech with a traditional removable prosthesis.

The patient’s function when wearing a denture may be reduced to 60% compared with that formerly experienced with natural dentition, however, an implant prosthesis may return the function to near normal limits. The esthetics of the edentulous patient also is affected because of bone atrophy continued resorption leads to irreversible facial changes. An implant stimulates the bone and  iMPLANTmaintains its dimension in a manner similar to healthy natural teeth. As a result, the facial features are not compromised by lack of support. In addition, implant supported restorations are positioned in relation to esthetics, function and speech, not in neutral zones of soft tissue support. The soft tissues of the edentulous patient are tender form the effects of thinning mucosa decreased salivary flow, and unstable or unretentive prosthesis.

The implant retained restoration does not require soft tissue support and improves oral comfort. Speech and function are compromised with prostheses form the supporting structures during use. The tongue and peri-oral musculature may be compromised to limit the movement of the mandibular prosthesis. The implant prosthesis is stable and retentive without the efforts of the musculature.

Resources:
http://www.whereincity.com/medical/topic/dental-health/articles/763.htm
http://www.dentalimplantthailand.net/

Reblog this post [with Zemanta]
Advertisements

Secrets Your Dentist Doesn’t Want You To Know

Here are the secrets your dentist may not want you to know — but you need to know to get the best care possible:

………………..
Secret #1: Your dentist may not be as educated as you think.

Dentistry has changed a lot since your dentist graduated from dental school. There have been major advances in most materials used in fillings, bonding and root canals. If your dentist is not actively engaged in continuing education, it is unlikely that he or she is keeping up with these developments.

Secret#2. Your dentist may not have the latest technology. ret #2:

Digital x-ray: Dentists who do not have digital x-ray equipment are practicing in the dark ages. Digital x-rays use less radiation than film. They are easier to read and the ability to manipulate contrast makes diagnosis more accurate.

Ultrasonic Cleaning: Ultrasonic instruments vibrate plaque and calculus off your teeth, even in areas below your gums. It is much more comfortable than old-fashioned hand scraping.

CEREC: The CEREC system lets your dentist provide a ceramic crown or veneer in only one visit. CEREC means fewer injections, less drilling and no annoying temporaries.

Diagnodent: This is a laser that the dentist shines on the tooth and it tells whether there is a cavity and how deep it is. With the use of this technology, the dentist can detect cavities, and find them at an earlier stage, than traditional poking around the tooth.

Secret #3: Your dentist may be using mercury.

Mercury is toxic. Norway and Sweden have banned the use of mercury fillings.. But mercury fillings are less expensive and easier for the dentist to use. If your dentist does not use composite fillings, don’t go to that dentist any more. In the US, the FDA is way behind the ball and not actively warning patients about this like they have been mandated by the courts to do.

Secret #4: The lab may be more important than your dentist.

Dental labs create dentures, crowns, bridges, orthodontic appliances, and other dental restorations like implant crowns. There is a huge difference in the quality of these labs. You should be particularly wary if your dentist is using a lab in China or Mexico. Some of the top labs in the U.S. are Aurum Ceramics, MicroDental Laboratories, da Vinci Dental Studio, and Williams Dental Lab.

Secret #5: There’s more to good dentistry than filling cavities.

A competent dentist screens for more than tooth decay. He or she should be concerned about sleep apnea, jaw-related pain known as TMJ or temporomandibular joint disorder, periodontal disease, oral cancer, diabetes and hypertension.

Secret #6: You are probably using the wrong specialist for dental implants.

Since dental implants involve the removal of a tooth and replacing it with an artificial tooth, many patients assume that an oral surgeon is best qualified to do it. This can be a flawed assumption. Periodontists, who specialize in gum disease, may be a better option. Periodontists have special training in gum tissue and underlying bone in the mouth, which are significant issues in dental implants.

Secret #7: Bad dental advice about dentures can be fatal!

Dentures are no joke. Your dentist should examine your dentures for evidence of wear. Wearing down the teeth on your dentures can result in distorted facial characteristics, collapse of the bite and closure of the airway.

Secret #8: Your dentist may not know enough about sleep apnea.

The most common form of sleep apnea is caused by a blockage of the airway during sleep. It is a pretty scary condition. The patient can stop breathing hundreds of times during the night. A common treatment for sleep apnea is Continuous Positive Airway Pressure (CPAP), which involves blowing pressurized room air through the airway at high enough pressure to keep the airway open.

As an alternative, your dentist, working with your physician, can custom make a device that guides the lower jaw forward, called a mandibular advancement device or MAD. MAD devices are more comfortable to wear and the compliance rates are much higher than using CPAP.

Secret #9: Not all cosmetic dentists have the skills to really improve your smile.

Any dentist can call herself a “cosmetic dentist.” Your dentist should be able to show you ten or more before and after photographs or videos, and be willing to give you the names of patients who have consented to be used as references.

Secret #10: How to avoid the root canal your dentist says you need.

Ask about the “ferrule effect.” Technically, this means that a root canal is unlikely to be successful if there is not enough tooth structure above the gum line to protect the tooth from coming loose or fracturing after it has been prepared for a crown. If your tooth fails the “ferrule effect” test, you might be better off with an extraction and an implant.

Source: Daily Finance August 27, 2009

Reblog this post [with Zemanta]

Be VERY Careful When Replacing Missing Teeth

 

By Dr. Lina Garcia

A dental implant is one option for replacing missing or badly diseased teeth. It is composed of an artificial root that looks like a post or screw and is covered with a dental crown.
……………....CLICK & SEE
Treatment involves the surgical placement of the implant into the jawbone, where it is allowed to fuse to the bone in a process called “osseointegration.”

Once healed, the implant acts as an anchor for an artificial replacement tooth, or crown. The crown is made to blend in with your other teeth and is permanently attached to the implant.

A typical dental implant is made of pure titanium and/or a titanium alloy.

In fact, titanium alloys are widely used in both medicine and dentistry, for dental implants, pacemakers, stents, orthodontal brackets, and orthopedic implants (e.g., hip, shoulder, knee, or elbow). Not only is titanium strong, but many consider it biocompatible: it forms an oxide layer when exposed to air, and this purportedly results in reduced corrosion and superior osseointegration.

So why should you reject the standard titanium metal implant?

Titanium is NOT Biologically Inert

Titanium implants release metal ions into your mouth 24 hours a day, and this chronic exposure may trigger inflammation, allergies, and autoimmune disease in susceptible individuals. They are a precursor to disease.

Cases of intolerance to metal implants have been reported over the years, and the removal of this incompatible dental material has resulted in reduced metal sensitivity and long-term health improvement in the majority of patients.

Titanium has the potential to induce hypersensitivity as well as other immunological dysfunctions.

One study investigated 56 patients who developed severe health problems after receiving titanium-based dental implants. These medical problems included muscle, joint, and nerve pain; chronic fatigue syndrome; neurological problems; depression; and skin inflammation.

Removal of the implants resulted in a dramatic improvement in the patients’ symptoms, as well as a decrease in many patients’ sensitivity to titanium.

For example, a 54-year-old man with a titanium dental implant and four titanium screws in his vertebra was so sick that he could not work. He suffered from chronic fatigue syndrome, cognitive impairment, Parkinson-like trembling, and severe depression. Six months after the removal of the implants and screws, he was able to return to work.

In another case, a 14-year-old girl developed inflammatory lesions on her face six months after being fitted with titanium orthodontal brackets.

She was also mentally and physically exhausted, and her reactivity to titanium skyrocketed. Within nine months of replacing the brackets with a metal-free material, her facial lesions had almost completely healed, she was healthy and active, and her sensitivity to titanium returned to a normal level.

Titanium Implants Can Cause Cancer

Another complication of the use of implanted titanium is its potential to induce the abnormal proliferation of cells (neoplasia), which can lead to the development of malignant tumors and cancer. Through rare, it is a well-known complication of orthopedic surgery that involves the implantation of metallic hardware.

Furthermore, researchers recently uncovered the first reported case of a sarcoma arising in association with a dental implant.

As described in the August 2008 issue of JADA (The Journal of the American Dental Association), a 38-year-old woman developed bone cancer eleven months after receiving a titanium dental implant. Luckily, she was successfully treated with chemotherapy, but the authors recommended further research into the tumor-causing potential of dental implants in light of their increasing popularity and their ability to last for longer periods of time.

Why You Want to Avoid ANY Kind of Metal in Your Mouth

Finally, the presence of any metal in your mouth sets the stage for “galvanic toxicity,” because your mouth essentially becomes a charged battery when dissimilar metals sit in a bed of saliva.
All that is needed to make a battery is two or more different metals and a liquid medium that can conduct electricity (i.e., an electrolyte). Metal implants, fillings, crowns, partials, and orthodontics provide the dissimilar metals, and the saliva in your mouth serves as the electrolyte.

An electric current called a galvanic current is then generated by the transport of the metal ions from the metal-based dental restorations into the saliva. This phenomenon is called “oral galvanism,” and it literally means that your mouth is acting like a small car battery or a miniature electrical generator. The currents can actually be measured using an ammeter!

Oral galvanism creates two major concerns.

First, the electric currents increase the rate of corrosion (or dissolution) of metal-based dental restorations. Even precious metal alloys continuously release metal ions into your mouth due to corrosion, a process that gnaws away bits of metal from the metal’s surface.

These ions react with other components of your body, leading to sensitivity, inflammation, and, ultimately, autoimmune disease. Increasing the corrosion rate, therefore, increases the chance of developing immunologic or toxic reactions to the metals.

Second, some individuals are very susceptible to these internal electrical currents. Dissimilar metals in your mouth can cause unexplained pain, nerve shocks, ulcerations, and inflammation, and many people also experience a constant metallic or salty taste, or a burning sensation in their mouth.

Moreover, there is the concern that oral galvanism directs electrical currents into brain tissue and can disrupt the natural electrical current in your brain.

New Alternatives to Titanium Implants

In recent years, high-strength ceramic implants have become attractive alternatives to titanium implants, and some current research has focused on the viability of materials such as zirconia (the dioxide of zirconium, a metal close to titanium on the periodic table).
………………
Metal-free zirconia implants have been used in Europe and South America for years, but they have only recently become available in the U.S.

Zirconia implants are highly biocompatible to the human body and exhibit minimum ion release compared to metallic implants.

Studies have shown that the osseointegration of zirconia and titanium implants are very similar, and that zirconia implants have a comparable survival rate, thereby making them an excellent alternative to metal implants.

Moreover, zirconia ceramics have been successfully used in orthopedic surgery to manufacture ball heads for total hip replacements.

Therefore, given that titanium dental implants can induce metal sensitivity, inflammation, autoimmunity, and malignant tumors, while zirconia implants are metal-free but just as durable, why invite chronic metal exposure?

Your body would surely benefit from choosing the biocompatible, ceramic dental implant over the standard, titanium metal implant.

Dr. Lina Garcia, a committed holistic dentist for 25 years, has dedicated her practice to using dental materials that will support your health and not disease. In her practice, she offers only metal-free restorative materials, including zirconia implants.

Source:Mercola.com

Reblog this post [with Zemanta]

Crowded Teeth

What is Crowded or Crooked teeth?
Crowded or crooked teeth that overlap, protrude, or recess in a haphazard fashion can often be perceived as a personal disfigurement. If you feel embarassed to smile, then you should consider having your teeth straightened out.
………….CLICK & SEE
Apart from looking aesthetically unpleasing, crowded teeth also affect the general dental condition of your mouth. They tend to attract food deposits, which get trapped in the narrow spaces, and are difficult to keep clean with routine oral hygiene. This leads to higher incidence of tooth decay and gum disease.

What causes orthodontic problems ?

Most orthodontic problems like crowding,spacing,protrusion,extra or missing teeth and jaw growth problemshave a genetic origin.

Why is treatment important ?
Crooked,crowded and irregular teeth are hard to clean and maintain,these problems can contribute to tooth decay,gum problems and tooth loss.A bad bite can also cause an abnormal wear of tooth surfaces,difficulty in chewing,speaking and abnorml stress on supporting bone and tissueand possible joint problems,children and adultswhose malocclusion are left untreated may go through life feeling self conciousness,hiding their smiles with tight lips or keeping a protective hand.

The objective of any corrective therapy is to create an illusion of well-aligned teeth in relation to lip position when you smile. Such an illusion can sometimes be achieved by means of cosmetic contouring, the technical term used to reshape teeth. In more involved cases, it may be necessary to use bonding to build-out a portion of a tooth to create the impression of alignment. As the cases get more complex, we may need to veneer or crown the teeth to achieve the necessary objective.
……………………
A child with severely crowded teeth. Such a case will need orthodontic treatment to achieve an acceptable result.
It may be necessary on occasion to extract certain teeth in conjunction with orthodontics, particularly in cases where crowding is extreme.

What about the problems of teenagers ?
When you think of orthodontics you tend to think of teenagers.And the fact is that orthodontic treatment in most cases begins between 9 and 14 years of age.It is important to know for the parents that some orthodontic problems are easier to correct in the early stages.

Does orthodontic treatment have any harmful effects ?

There is some discomfort or pain in the teeth after fixing the braces,which usually subsides within a week,the myth that the orthodontic treatment weakens the tooth is not correct.

Does extraction of teeth necessary for orthodontic treatment  ?
It depends on the severity of the problem,severly crowded,irregular teeth which are out of alignment cannot be aligned without the extraction of teethand no residual space is left after the treatment.

Till some years ago, orthodontic treatment was the only solution to crowded teeth. But now we have an alternative in cosmetic dentistry. We may add that orthodontics is still widely used in the younger population, while cosmetic procedures are more useful in professionals who may not have the time necessary to carry out the orthodontic procedures. Cosmetic dentistry is also useful in the older generation, who may not have an ideal gum or bone condition necessary to withstand the orthodontic forces.
Laminating with ceramic veneers can provide a pleasing result. This patient is a female adult who did not have the time to go in for orthodontic treatment. The protruding tooth was reduced to first bring it into alignment with the other teeth, and then both the front teeth were veneered.
The other two side teeth were cosmetically contoured to change their alignment, thus giving a fairly acceptable result.

Crowded teeth may require a combination of treatments in order to achieve an aesthetically and functionally satisfactory result. Individual problems require individual solutions, and the final decision about the right treatment procedure for you will be made by your dentist.


Resources:

http://www.lakshdeep.com/crowded.htm
http://www.whereincity.com/medical/topic/dental-health/articles/670.htm

Reblog this post [with Zemanta]