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- This topic has 5 replies, 1 voice, and was last updated 19/05/2012 at 5:11 pm by
Drsumitra.
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18/03/2012 at 3:49 pm #10394
Drsumitra
OfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesThe telescopic crown also known as the german crown was developed in Germany and is even now one of the most used dental procedure by us to construct removable dentures. Note that 99 % of the telescopic dentures worldwide are being made in Germany.
Telescopic Dentures and Bridges
Some of the benefits of the telescopic overdentures include the prevention of bone loss, esthetic appeal, improved speech (when compared with other types of dentures), proper jaw alignment, and improved chewing efficiency. These overdenture systems can last a lifetime and increase chewing power by up to 300%.Periodontitis is a dreaded oral disease that causes the gums to recede, loosening teeth, and eventually leading to loss of teeth. Telescopic denture is a old german technique to restore new teeth for the periodontal patients. It consists of a double crown system know as “the telescopic”, the procedure involves fitting the remaining natural teeth with inner metal crowns, followed by outer crowns as part of an over denture that can be removed by the patient.
This technique ensures that bite stress is distributed evenly between each tooth, protecting the remaining teeth and the end result looks quite natural. This technique is also suitable for cases of missing back molars.
Increased Chewing Power up to 300 %18/03/2012 at 3:52 pm #15298Drsumitra
OfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesThe probability that a patient will have kept all teeth 10 years after insertion is 80%. The telescope double crown system is a versatile and successful way of achieving the long-term restoration of the partially edentulous jaw. Insertion and removal of the denture and routine oral hygiene are easy to perform, even for patients with limited manual dexterity. As a full-arch reconstruction, the telescope crown denture system enables easy adjustment, modification, and relining with low follow-up costs.
The Telescopic Bridge
The telescopic bridge or prosthesis is a dual supported ( teeth and gums ) removable coverage restoration designed to fit over your natural teeth and gum areas in order to replace missing teeth.
The telescopic denture consists of:
the primary crowns or caps made of precious or non precious dental alloys that will be cemented on the prepped teeth
the secondary crowns (dental alloys) that are slipping over the primary caps and thus maintaining the bridge through sliding friction tight on the teeth. The secondary crowns have facings (surfaces) of acrylic resin with ceramic fillers
(the framework made out of non precious dental alloy is embedded in plastic (acrylic resin) and supports the acrylic teeth which will replace the own missing teeth. )The best results are obtained when primary and secondary crowns are made of gold or precious dental alloys. If you would like to save, our specialised partner dental lab can also use non precious alloys for the primary and secondary crowns.
18/03/2012 at 3:52 pm #15299Drsumitra
OfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesPros
replace missing teeth
improved appearance compared to clasp retained partial dentures
improve chewing ability
provides support to the periodontal structures
cheaper than comparable implant sustained bridges
can be easily fabricated and applied when there are at least two or three teeth left on the jaw. Ideally it would be fitted on 4 to 6 teeth to achieve best results
does not need clasps or other visible metallic parts on the front teeth
the bridge sits tight although it can be easily removed in order to practice the regular mouth hygiene
prevents future tooth loss. The secondary framework can prevent further tooth loss especially when teeth are weakened by periodontitis (gum disease)
the dual support on teeth and gums will distribute the chewing forces equally onto the teeth and gums thus preventing the teeth from overloading. Overloading is one of the most frequent cause of tooth loss
long life expectancy. Our experience shows that telescopic dentures inserted on 4 and more teeth have an average lifespan of at least 10 years and often more than that
best suited for patients who do not want or can not have implant surgery due to anxiety, high costs for implants, diseases or medication that will not allow the insertion of implants
maintenance, repairs and extension can be easily done at low costs
In case of tooth loss there is no need to make a new bridge. The framework can be easily extended within minutes. A fixed bridge or an implant supported bridge would need an expensive complete renewal.
Con
under circumstances healthy teeth need to be prepped thus resulting in loss of healthy tooth substance. This may apply for fixed bridges as well
it needs to be taken out of the mouth at least once a day for cleaning. This may be bothersome for some patient
wearing a removable denture might be hard to overcome psychologically, giving a sense of ageing
the telescopic crowns are slightly larger (bulky) than similar ceramic crowns
requires more appointments for completion when compared to fixed bridges
it often requires a palatine (roof of the mouth) metal bow in the upper jaw that spans across the palate, and in the lower jaw a thin metal bow behind the front teeth
at the beginning it may look expensive than comparable fixed bridges. But seen on a long term basis due to low follow-up costs it is definitely the best choice18/03/2012 at 3:53 pm #15300Drsumitra
OfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 times18/03/2012 at 3:57 pm #15301Drsumitra
OfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesAbstract
PURPOSE:
It was the aim of this study to investigate the long-term success of a telescopic crown system that can be used for both rigid and resilient support and to evaluate by means of a literature review whether the use of resilient support may be advantageous compared to other double crown systems when the restoration is placed on only a few remaining teeth.
MATERIALS AND METHODS:
Patient records were used to evaluate 125 dentures (with 460 abutment teeth) based on the Marburg double crown system. The loss of abutment teeth, endodontic treatment, and fracture of the metallic framework were investigated with regard to the different types of denture support.
RESULTS:
The probability that a patient would have kept all abutment teeth was 84% after 5 years and 66% after 10 years. No significant differences were found for the two groups "resilient support" (< or = three abutment teeth) and "rigid support" (> or = four abutment teeth). For abutment teeth with a double crown with clearance fit, the risk of loss was 4% after 5 years and 15% after 10 years for rigid support, and 10% and 24%, respectively, for resilient support. The risk of endodontic treatment was 7% after 5 years and 9% after 10 years for rigid support, and 3% and 7%, respectively, for resilient support. None of the denture frameworks showed a fracture during the observation period.
CONCLUSION:
Removable partial dentures retained by double crowns with clearance fit and constructed without major or minor connectors provide good clinical longevity. The survival rates of abutment teeth were comparable to those reported in the literature for other double crown systems. There was no significant increase of the risk of abutment loss when the restoration was placed on three or fewer remaining teeth and the concept of resilient support was applied.
19/05/2012 at 5:11 pm #15512Drsumitra
OfflineRegistered On: 06/10/2011Topics: 238Replies: 542Has thanked: 0 timesBeen thanked: 0 timesSoft Reline
Some patients may develop tender gums and find wearing their dentures intensely painful. In addition sore spots can develop around tender areas which means that the dentures can’t be relined with conventional materials. In cases such as this the dentures may be relined using a soft material which is slightly pliable and lasts for a couple of years before needing to be replaced. Depending on which kind of material is used, the consistency can range from a hard rubber feel to waxy and will prevent any sore spots from occurring by being gentle on the gums. However as many patients only seek help when they’re experiencing difficulties, this can sometimes mean that their problems have progressed beyond sore spots and tender gums. Common problems include overbuild dentures and resortbed ridges which require constant pressure on the teeth to keep them held in place. Fortunately, both these conditions are highl treatable using surgery or specialised implants.
Hard Reline
Most dentists reccomend this sort of reline should be performed on full sets of dentures at least every couple of years. In this procedure the dentist takes out some of the plastic from the dentures inside and then refills the denture with a putty like material which will form itself around the contours of your gums before hardening. This means that the denture will retain a great impression of your gums and when it’s sent to the lab this can be replaced with hard acrylic. Once you get the denture back it will now closely match the contours of your mouth making the dentures suction and retention capabilities excellent.
Temporary reline
In many cases when a patient shows up for a replacement denture, their current dentures are in a bad condition due to lack of servicing. This can cause serious gum problems including swelling and misshaping. In cases such as this it’s not possible to reline the denture or to build a new one taken from impressions (due to gum problems). In these situations many dentists will opt to use a medicated material for relining which will help the inflammation to come down. This reline should make your denture fit well and although it will only last a few months this should give time for your gums to return to normal and you’ll be ready for a new denture.
Caring for your dentures
Most dentists reccomend that you don’t wear your dentures all day without having at least a two hour break to allow your gums to fully recuperate. Constantly wearing your dentures can cause the bony support in your gums to be lost and rapidly replaced with flabby tissue which is very soft and causes several problems for denture wearers. You’ll also need to thoroughly clean and deoderise your dentures at least once every day to avoid halitosis. It’s important to maintain a good level of oral hygiene by leaving your dentures out overnight and soaking them with a denture cleaner. It’s commonly advised that you brush your dentures using a soft brush and some dish detergent instead of toothpaste or powders. You can also soak your dentures overnight, to ensure cleanliness use a dilute solution of laundry bleach.
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