Archive for April, 2010

dentures: differences – fixed – partly removable – removable

Posted by Dental News Team On April - 8 - 2010

What does fixed, partly removable and removable mean?

Fixed means that you are not able to remove the dentures out of the mouth. The denture is in the mouth constantly. This is not a dental plate, but a denture.

A classic example is a dental crown (pic.1). The quality of dental crowns, a correct bite and the dental arch incorporation have to fit all the time! Differences in costs refer to the effort and the aesthetic elaboration.

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Another example of a fixed denture is the dental bridge (pic.2) Like the dental crown it is also carbonised on tooth stumps. The only difference is, that a dental bridge connects one or more interlinks together.  Separate crowns are often linked together-without interlinks. This is done to save work, cause the technician has to mold less sides on the denture and so the dentist has to pay less for the work.  But this causes disadvantages for you!

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If there is no tooth stump left you need an implant instead (pic.3). A denture with implants is mostly carbonised- but with a temporary dental cement-this is called a “partly removable denture.”

If the dentist is able to remove the denture, for example by loosen screws, it is called partly removable denture-so the dentist is able to remove your denture “easily” but you are not.

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A classic example of a partly removable denture is a screwed bridge solution (pic.4)

As said before: Implant crowns are carbonised contrary to normal crowns, so the denture can be removed by the dentist as needed.  You call it a fixed denture if the crown is placed on the tooth stump, cause the dentist has to destroy the crown to get to the tooth.

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The use of screwed dentures was not unusual in the past, today carbonised solutions are  trend setting.

Some reasons are:

  • Development and improvement of dental cement (permanent and temporary cement)
  • lower costs in contrast to expensive screwed solutions
  • easier to clean
  • less problems
  • higher comfort, cause screwed dentures are usually bigger and clumsy
  • positive development in the region implantology and bone structure surgery

If you have a fixed or partly removable denture the masticatory force is initiated by bones either on the dental root or with implants. This is also possible with removable dentures-the masticatory force can also be initiated by the mucous membrane. You differentiate from denture, supported by bones or mucous membrane. More on this in the next article.

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implantology prostethics

dentures-dental plate

Posted by Dental News Team On April - 7 - 2010

Our topic in the next weeks is the variety of dentures!

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Phrases like  “hybrid prosthesis” are used to describe dentures. The glossary can vary from country to country and continent!

Please talk to your doctor in person about details! We would like to give you an overview on different opportunities, but we are not aiming for term-definitions!

Overview:

  • differences – fixed – partly removable – removable
  • removable dentures bone support – dental plate mucous membrane support
  • costs
  • dental implants – various waiting times
  • removable dentures – mucous membrane support
  • materials
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prostethics

Quiz Score! – Congratulations, you are now a root canal expert!

Posted by Dental News Team On April - 6 - 2010

Our topic in the last weeks was root canal treatment and its risks! (10/10)

The last report showed three different pictures!

Pic 1

The molar has never received root treatment, just root tip resection and retrograde filling. After a bridge was inserted, the patient complained of pain, and some weeks later, the dentist skipped performing root treatment in favor of root tip resection, in order to avoid damaging the bridge. Two years later, the tooth can no longer be saved, because this faulty treatment could not prevent the spread of the inflammation – and this caused the bone to recede. The tooth is no longer surrounded by bone, but by inflamed tissue!

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Pic 2

The back root is evenly filled to the tip – unlike the front root!

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Pic 3

The front tooth (shown by the green arrow) is well-filled, while the back tooth (red arrow) has not been treated at all, and you can clearly see the inflammation progressing in the bone.

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More on x-rays and dental films and pictures here!

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endodontology

Keyhole surgery – don’t cut, just punch!

Posted by Dental News Team On April - 2 - 2010

Inserting implants without cutting open the mucous membrane  – does that work?
Well, if there is enough stable gum tissue (gingiva fixa) around the implant to hold it in place! But this kind of minimally invasive implantation cannot always be performed!

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Nowadays we know that if implants/teeth are surrounded by enough gingiva fixa, then less plaque builds up there.
Teeth or implants held by more loose gum tissue are more prone to developing periodontitis, gingivitis and/or cavities.
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So if there is very little stable gum tissue, then it is not good to use a puncher, as it removes what little gum tissue is left!
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But if the implant is to heal underneath the mucuous membrane, then it is not necessary to make cuts for this type of operation!

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implantology
implantology

Small filling – big filling – root treatment – root tip resection – removing a tooth

Posted by Dental News Team On April - 1 - 2010

Small filling – big filling – root treatment – root tip resection – removing a tooth

Does this process look familiar to you?

Whether it does or not, we would like to explain why this happens. It may help some of you to avoid this, while others will at least realize that there is no such thing as bad teeth!


1. People rarely ever have bad teeth and if this is genetic, all of a person’s teeth are affected!

Why do you mostly have fillings in your side teeth? Find out here!

2. Good, now we know that your “bad teeth” are at least partly your own “fault”! Unfortunately, dentists only rarely inform their patients about why things like this happen, they usually just keep drilling, while your fillings keep getting bigger and bigger, until one fine day you need a root canal treatment.

The right way to perfom root treatment is … here we have a video for you, but be sure to come back after your trip to dental land!

3. Hopefully your root treatment was not performed the wrong way, without a coffer dam, enlargement and sterile instruments.

Now, your root canal may contain a bunch of bacteria from saliva, or unsterile instruments used during treatment. These bacteria continue to multiply unchecked. Your immune system does manage to get rid of some of them, but not all, and years later you develop a bone infection at the tip of your root, caused by the bacteria in your root canal.

4. This usually calls for a root tip resection – depicted here!

Without cleaning the canal (orthograde WSR), or sealing the canal from behind (retrograde WSR)this area can again start to cause problems, making it necessary to remove the tooth completely!

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Imagine all the trouble you could have saved yourself if you had already known this – Dentalnews.en readers always have something to smile about!

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implantology
implantology