In the world of dental prosthetics, an ultra-modern novelty recently appeared - a miniature, comfortable and natural sandwich denture. It suits almost everyone, is easy to clean, and installs quickly and without any problems. Its advantages can be listed endlessly, but it is better to see everything with your own eyes.
Dentistry does not stand still. Specialists are developing new designs and materials that meet modern requirements for aesthetics, comfort, convenience and functionality. This is especially true for implants and dentures, the task of which is to completely replace real teeth. Dental inventions of the new generation include a removable sandwich denture, which is superior to other orthodontic structures in many respects .
Sandwich prosthesis for dental restoration – how it works, what it looks like and who it’s suitable for
Article navigation
- What is a sandwich prosthesis
- History of creation
- Indications
- Contraindications
- What are the advantages
- Flaws
- Stages of prosthetics
- Service life and care rules
- Guarantee
- Where can I do it?
- Reviews
- Price
Question for a specialist
Sandwich prosthesis is a new product in the field of removable prosthetics.
In essence, this is a regular overdenture that rests on the gums. However, it differs from similar designs in the presence of locks or attachments that are fixed in the patient’s own teeth, as well as the absence of palatal overlap. Patients note that the sandwich denture is more comfortable and creates the feeling of having their own teeth in the mouth.
What is a sandwich prosthesis and how does it work?
The new generation “sandwich” prosthesis belongs to the category of removable, or more precisely, conditionally removable. You don't need to remove it every day, but the option remains. Moreover, the patient himself can do this, for example, for hygiene procedures. Dental sandwich dentures are fixed on a special locking mount, which belongs to the group of attachments. It is spherical and is placed directly into the tooth root (there is a second part in the form of a hole inside the prosthesis). The fastening differs from hook-clasps or traditional locks-attachments in its smaller size and also reduces the load on the gum tissue.
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The sandwich prosthesis consists of three parts:
- artificial dental crowns – analogues of the patient’s own teeth,
- acrylic base – artificial gum,
- attachments or locks: they consist of two elements - the first part is located in the inner part of the prosthesis, the second - directly on the tooth (or rather, in its root).
You can see what a new generation sandwich dental prosthesis looks like in the photo. A distinctive feature on the upper jaw is immediately noticeable - here you can see that this is a removable denture without a palate (a massive artificial part), so it is more comfortable to wear than classic “removers”. In general, the volume of a sandwich prosthesis is only 15% larger than that of a natural dentition (more precisely, all natural crowns, since the prosthesis also includes an imitation of gums), and its weight is 5-7 grams.
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2. Butterfly dentures or immediate dentures. They are recognized by experts as the best temporary option, which is installed during the manufacture of a permanent prosthesis or during the period of osseointegration of the implanted implant. The material used to make the “butterflies” is plastic and therefore is not strong or durable.
3. Sandwich dentures. They are an innovation in prosthetics and are often called palateless dentures in advertising. They are more convenient for everyday use, but at the same time they are quite expensive, and in addition, they do not provide the correct distribution of the chewing load. All the pressure will go to the area of the prosthetic bed, which means that chewing solid food will be accompanied by discomfort. Sandwich dentures cannot be firmly fixed in the upper dentition of the jaw, and if restoration needs to be carried out in this particular area, clasp dentures would be the best and most stable option.
4. Clasp prosthesis. Such a prosthesis will be conditionally removable. It is secured to the supporting dental units using miniature clasps. The clasps will hold the denture in the mouth and prevent it from falling out.
Which prosthesis option will be better in your case? The specialists of our dental clinic in Moscow, Vanstom, can help you find the answer to this question! Our clinic is located in the center of Moscow, near the Baumanskaya metro station, and you can make an appointment with us in any way convenient for you: by phone or through the services of our website!
The history of sandwich dentures
“Sandwiches” are the development of Russian orthopedic dentists with 30 years of experience in practical prosthetics. The specialists took into account all the comments and reviews of patients wearing conventional removable appliances (poor fixation, rubbing of the gums, loss of the “jaw”, lisp, lack of taste in food and nausea). And as a result, they created a removable dental sandwich prosthesis. By the way, it is called that not because it is edible, but because of a special patented manufacturing technology - when materials with different physical properties are combined with each other in a certain sequence.
Conditions when a sandwich prosthesis can be installed - indications
- the presence of at least two teeth or their healthy roots, preferably at the edges of the dentition: attachments will be attached to these lateral teeth. However, in some cases, a sandwich prosthesis can also be fixed on the front teeth, if the lateral ones are not preserved,
- wearing a sandwich denture is allowed on both the upper and lower jaws,
- bruxism and malocclusion pathologies: for example, with a mesial or reverse bite, a sandwich prosthesis can also be installed,
- absence of many or all teeth in a row: with the exception of two preserved roots,
- abnormal structure of the sky,
- prosthetics are possible even with severely damaged natural teeth on pre-treated roots,
- restoration of teeth with mobility of 1-2 degrees (with periodontitis1, periodontitis),
- suitable for patients with excessive dry mouth, as it does not block the salivary glands,
- when there are relative or absolute contraindications to implantation.
Useful sections
To learn more about palateless dentures, check out these sections:
- Acree Free prosthesis
- Prosthetics on 4 implants
- Flexible dentures
Literature used for the article:
- Guide to prosthetic dentistry. Prosthetics in the absence of teeth / I.Yu. Lebedenko, E.S. Kalivradzhiyan, T.I. Ibragimov. ― MIA Publishing House, 2005
- Orthopedic treatment of patients using thermoplastic materials / L.V. Stepanova, S.V. Chernikov. ― Chief Doctor of the South of Russia, 2013
Author of the article: Natalya Aleksandrovna Kozlova
Copywriter of the information portal Stom-Firms.ru. Specializes in medical and dental texts.
Contraindications for prosthetics
- allergic reactions to materials: although they are hypoallergenic, no one is immune from individual intolerance. Therefore, carefully monitor the condition of the oral cavity after prosthetics and especially focus on the appearance of rashes, itching, swelling,
- complete edentia (if there are no teeth at all): in this case, instead of “sandwiches”, classic removable ones (plate or Acry-free) are also suitable, but it is better to still carry out implantation - it’s more reliable,
- the need for complete removal of remaining teeth along with roots,
- late stages of periodontitis or periodontal disease, when the teeth become very mobile and cannot serve as a quality support for prosthetics.
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What are the advantages of sandwich dentures?
- no need to take it off at night or after meals,
- does not cause a gag reflex,
- the opportunity to enjoy your favorite food, which is not jammed under the prosthetic base: the “sandwich” is perfectly fixed, which means there is no need to be afraid that it will come unstuck or fall out while chewing food. In addition, there is no artificial palate in the design, and taste buds are not blocked,
- the artificial jaw does not move while chewing food, laughing or talking,
- diction doesn't change
- absence of wearing discomfort and rubbing of the mucous membrane: due to the precise fit to the gums, supporting teeth and the presence of a very small artificial gum made of elastic plastics,
- aesthetic smile: compact design, without hooks - often they spoil the appearance and rub the gums,
- quick adaptation due to the minimal size of the prosthetics,
- maintainability and availability of a manufacturer’s warranty (more on this later).
Disadvantages of sandwich dentures
Sandwich dentures also have disadvantages. Firstly, they are somewhat more expensive than traditional removable ones, because their production is more complicated. Secondly, they are not suitable for patients with nervous system disorders, or those with allergic reactions to materials. Thirdly, a “sandwich” can be installed only if there are at least two natural teeth in a row, the roots of which are suitable for fastening. However, there is a risk of damage to the supporting teeth - over time, the roots may simply split into pieces due to excessive stress.
Not a single removable denture, even the most modern one, protects the jaw from atrophy (or loss) of bone tissue in those places where tooth roots were previously located, but now they are not there. Over time, the height and width of the alveolar process decreases, and the level of the gum also decreases - so the “pullers” become uncomfortable, begin to shift, and you have to go to the dentist for correction. Now dentistry can offer only one solution to prevent bone atrophy - implant prosthetics.
Materials used
Soft dentures for teeth that do not have a palate are made from:
- acrylic , which contains substances that provoke negative reactions of the mucous membrane;
- from hypoallergenic materials, in particular nylon , characterized by elasticity, somewhat less wear resistance, and the polyurethane included in the composition can lead to tissue atrophy;
- hypoallergenic material - zirconium dioxide , which will prevent the occurrence of unpleasant reactions in the oral cavity.
Fixing dentures on healthy teeth increases the risk of developing stomatitis. Their disadvantages are also rapid wear and the inability to repair. Over time, they lose their presentable appearance.
In general, the same materials that are widely used in orthodontics today are used for such prostheses.
Stages of prosthetics - preparation, construction and installation
Let's take a closer look at how a sandwich prosthesis on spherical attachments functions and is installed, as well as how it is manufactured.
At the first stage, the supporting teeth are prepared for installation of the prosthesis. The crown is processed, the degree of tooth mobility, the direction of root growth are assessed, and then the nerve is removed from the root canals (but this is not always necessary) and infectious foci, if any. Afterwards, the root is filled and an oval-shaped cavity is created in it. A root spherical attachment is placed inside it, which protrudes above the gum. It is secured with a special fixing material.
At the second stage, impressions are taken, according to which individual prostheses are created in the laboratory. On average, the sandwich dentures will be ready in 2-3 weeks. It is worth noting that the second part of the attachment (which is located inside the prosthesis) is worked out by the dental technician - it is a recess into which the spherical part is placed, located on the supporting tooth. As soon as the two elements are connected, the mount snaps into place and securely fixes the orthopedic structure in the oral cavity.
At the third stage, the sandwich prosthesis undergoes final fitting. If it does not cause discomfort or put pressure on the gums, then the work is considered completed - the doctor will definitely teach the patient the rules for caring for new teeth, and will also explain how to remove and install the denture independently.
Service life and care rules
The service life of a prosthesis on attachments largely depends on the initial condition of the supporting teeth. The longer they can withstand the load, the longer the life of artificial teeth will be. In general, sandwich dentures will last 7 years or more.
The patient also needs to remember to take careful care of both the gums and attachments in the roots of the teeth, and the “sandwich” itself. At the slightest inflammation of the mucous membrane, it is very important to carry out complex therapy (rinses, baths), otherwise there is a high risk of infection of the roots and gums.
The denture itself must be cleaned 2 times a day with a brush and paste, and after eating, be sure to rinse your mouth. No need to take it out! It is recommended to remove the prosthesis 2-3 times a month for detailed cleaning of the inner surface using special solutions that are sold in pharmacies. You should also visit your orthopedist 2-3 times a year for preventive measures (professional cleaning of the prosthesis and its adjustment if necessary).
Where can such a prosthesis be made?
Where to install a dental sandwich prosthesis? Sandwich structures are manufactured and installed in only one clinic in Russia - the Moscow dentistry "Persona Life". This is where the creators of the patented “sandwich” work. Moreover, the rights to the patent and manufacturing techniques were not transferred to anyone, so the removable “sandwich” is available only to a limited circle of patients living in the capital or having the opportunity to visit it regularly - after all, the prosthesis will have to be adjusted regularly.
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Summary:
The Quadrotti removable prosthesis is an exclusively marketing product with a high price. That is why this type of dentures has not found wide distribution either in the West or in Russia. Such dentures cannot be called universal... On the one hand, they have good aesthetics, although large white clasps can also confuse a number of patients, especially if they are located in the smile zone on the front surface of the teeth. In this regard, AcryFree dentures, which are also made from monomer-free thermoplastic, have the best aesthetics.
As for chewing efficiency, these dentures are not at all up to par. Moreover, the more teeth you have missing, the worse the chewing efficiency will be, the higher the pain when chewing, plus the high rate of bone atrophy under the denture. In general, in terms of these indicators, Quadrotti’s dentures are much inferior to clasp dentures, even with conventional clasp fixation, not to mention clasp dentures with micro-locks. We hope that our article was useful to you!
Sources:
1. Personal experience as a dentist, 2. National Library of Medicine (USA), 3. https://quattroti.com/, 4. https://www.realself.com/, 5. “Teeth restoration with clasp dentures (Fadeev R.A.).
Reviews from real patients
“I wore all sorts of prosthetics – both plate and clasp ones, but something always got in the way. I just couldn’t find a good option for myself so that I wouldn’t feel sick or feel heavy. And then one day I read about sandwich dentures on the World Wide Web. Then I went to a consultation, where I really liked everything, and I decided to use them. I will say right away that the expectations were justified and even very much so. The convenience simply cannot be compared with the old removable jaw.”
Irina Mikhailovna, review from the site irecommend.ru
“Our grandfather was left with almost no teeth at the age of 70. I wanted to do it for free with my pension, but there is a huge queue there. They began to look for other options, but not very expensive ones, because he himself was uncomfortable when someone helped. We settled on domestic “sandwiches”, although we had to go to Moscow to get them. Grandfather is happy so far, wears new teeth and doesn’t complain.”
Alexander, review from forum.stom.ru
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To choose the best prosthesis, you should study in detail the features and characteristics of each type of orthopedic structures, take into account your requirements for the prosthesis and financial capabilities. Such a careful approach is a guarantee of choosing the best and high-quality dentures! Our dentistry specialists in Moscow, Vanstom, will always be happy to help you choose the optimal prosthesis for restoring your teeth! Make an appointment with us and come to our clinic for quality dental prosthetics services. Our address: Moscow, Baumanskaya metro station, st. Bakuninskaya, 17/28.
Cost of a sandwich prosthesis with attachments
How much does a sandwich prosthesis cost? The cost of a new generation denture with attachments starts from 53.5 thousand rubles per jaw. The amount includes the price of the removable sandwich denture itself, diagnostics of the condition of the oral cavity before treatment, adjustments during the manufacturing process and final fixation of the denture, as well as service. Moreover, for the treatment of supporting teeth, if it is required, you will have to pay separately - about 10 thousand rubles for 1 tooth.
The amount is quite large (compared to plate acrylic ones), but the comfort and convenience cannot be compared with any other type of removable structures. Except, perhaps, implantation, but it will cost 2-3 times more.
- Orekhova L.Yu. Periodontal diseases, 2004.
Author: Namdakov N.V. (Thank you for your help in writing the article and the information provided)
"Quadrotti" are suitable for complex clinical cases
Quattro Ti, like the clasp design, is indicated for patients with periodontal diseases, and can be used as a splinting device to secure slightly loose units. But that’s not all, it is suitable for patients suffering from bruxism and malocclusions, sensitivity of the mucous membranes, mental disorders, people who engage in dangerous sports and professions. Even children are allowed to wear it. In case of any traumatic factor, bruise or blow, the structure will not cause harm.
Also, this option of prosthetics is indicated as temporary or when a person does not want to install a bridge structure and grind abutment teeth under it to fill a single defect.
