Almost every elderly person suffers from different degrees of oral diseases, the “worm teeth” in the young age are often extracted due to serious decay, in addition to periodontal disease is also a common cause of missing teeth. Missing teeth is not good for health in the past, people missing teeth are taken to set “dentures” (denture) to fill the way. But dentures are inconvenient to clean, remove and use, many elderly friends are afraid of trouble, think that the teeth do not hurt on the line, not to set teeth, some people even with dentures are not often used, to live in a state of missing teeth.
In fact, missing teeth not only cause inconvenience and unnatural chewing when eating, but also directly affect the health and quality of life of the elderly. After the affected tooth is extracted, it leaves a gap in the middle of the tooth row, which is easy to embed food and will lead to caries and periodontal disease after a long time, and the tooth corresponding to the gap will elongate, resulting in the exposure of the root of the tooth and affecting its stability. Therefore, it is still necessary to choose methods such as dental implants to repair missing teeth in time.
Choose the right dentures for you. Today, with the improvement of living standards, people are no longer satisfied with the traditional mode of dental veneers, hoping to apply new materials and technologies. Many people are beginning to pay attention to the choice of materials used to make dentures in order to improve chewing efficiency and aesthetic results. For older people, it is important to choose both affordable denture materials and the type of denture that suits them. Which material is better and more able to fit? The price of different materials varies greatly. The following is a brief introduction to the types of dentures, the materials used to make them and the correct use of them, so that elderly friends can have a more comprehensive understanding of the knowledge of dental implants.
Classification of dentures
1.Fixed dentures: If you have a small number of missing teeth, solid remaining teeth in front and behind the missing area, as well as good general health and economic conditions, you can consider a fixed denture or implant denture. It can be used almost as your own real teeth, and usually does not require special treatment, just clean like other teeth. These dentures feel comfortable, chew powerfully, among which non-precious metal porcelain teeth, porcelain bridge beautiful and realistic, economical and practical, popular with patients. If you have a large number of missing teeth, or no full teeth at the back end of the missing area, you can choose between dental implants and removable dentures. But the current cost of dental implants is high, in addition to a very small number of patients with the financial strength to choose, the majority of patients or choose active dentures.
2, movable dentures: movable dentures have the advantages of easy cleaning, beautiful and inexpensive, now in addition to the traditional plastic base, high strength stainless steel brackets, precious metal brackets and the emergence of invisible denture without showing the wire, but also greatly improved the comfort and beauty of the traditional movable denture.
What material are dentures made of. The ideal denture material should be: non-toxic, non-irritating to the patient’s oral mucosa and oral cavity, does not cause allergic reactions and non-carcinogenic substances; stable performance, not easy to deformation, aging; at the same time, should also strive to beautiful, durable, light weight, easy to process, low price, etc..
From the production of materials can be divided into metal and non-metal two categories
1, metal materials: metal materials are alloys and pure gold. Alloys such as nickel-chromium alloy, cobalt-chromium alloy, copper alloy, stainless steel, titanium alloy, gold-palladium alloy, etc.. Metal materials are mainly used to make movable denture rings, brackets, brackets, etc., and fixed denture metal crowns, bridges. Precious metal class: usually said that precious metal porcelain refers to the metal crown containing more than 80% gold, and then add white gold or rhodium, palladium and other elements made. It is more expensive, but the advantages are significant: gold alloy base crown on the porcelain after the luster is close to natural teeth, and biocompatible, safe to use; especially porcelain teeth and gum contact is natural, no green and black gum edge. Because of the high degree of confinement, porcelain and metal bonding is quite solid, rarely appear porcelain crown chipped porcelain phenomenon. In our country, the use of such precious metal materials is not very common, mainly limited to the higher income class, while in developed countries in Europe and the United States has been widely used.
2, non-precious metals: non-precious metals made of porcelain teeth, mostly made of nickel-chromium alloy metal crown and external high-temperature porcelain made, because the price is relatively low, so widely used in China. However, there are certain defects of this material: such as poor edge fit; biocompatibility with the human body is poor; some patients in wearing a period of time, the cervical part of the tooth and gum tissue in contact with the edge of the area prone to black lines, especially in the front teeth area, to a certain extent affect the aesthetics. At the same time, the coefficient of thermal expansion of nickel-chromium alloy and porcelain does not match, so the phenomenon of chipped porcelain can occur. There are also controversies against the material of nickel-chromium alloy: it has been reported that nickel-chromium alloy has certain toxic side effects; there are also scholars who believe that nickel and beryllium in nickel-based alloys are toxic to human body and have the possibility of allergy and carcinogenesis; there are also cases reported that trigger allergic reactions.
The occurrence of side effects of nickel-chromium alloys is usually in the dentistry workers are often exposed to the particles produced by casting and grinding these metals, gradually accumulate to easily cause toxicity and carcinogenic effects. Therefore, protection is necessary when working with castings and clinical operations that manufacture these alloys. However, patients are different from dental mechanics. So far, there are no research findings and reports on the induction of oral cancer in patients with nickel-chromium alloy denture. In the non-precious metal materials, there is a new material of pure titanium porcelain teeth, its most important feature is that there is no toxic side effects on the human body, the best biocompatibility, which is only in recent years the development of mature titanium porcelain technology. Its price is higher in the non-precious metal materials, but lower than the precious metals. Non-metallic materials for the production of dentures are mainly plastic, composite resin and ceramic materials.
Plastic and composite resin can be widely used to make crowns and abutments (brackets) for dentures. Ceramic materials are mainly used to make crowns. Porcelain teeth have good wear resistance, but they are not firmly bonded to the brackets, easy to fall off, and not easily modified. From the late 1980s, with the emergence of ultra-ceramic composite fiber bridge technology, all-ceramic restorations of dental crowns (all-porcelain crowns) will gradually replace metal porcelain teeth. All-porcelain crowns can completely avoid metal allergic reactions and have better aesthetic results, but the disadvantage is that they are not strong enough and are expensive. The above three types of non-metallic materials have their own advantages and disadvantages, elderly people can choose the right denture material according to their own situation and the doctor’s advice.
It is very important for the elderly to take care of their dental implants, as it is related to the success of the restoration and the length of time the denture will be used.
First of all, regardless of the type of denture, you should visit the hospital once a year for a regular review. After 3-5 years, full dentures should be fully checked and repaired, such as relining or relining.
Due to the change of oral environment in the elderly, special attention should be paid to the cleaning of the roots of the teeth. To prevent the secondary caries and root caries, the residual roots should also be cleaned to prevent the remaining teeth and roots from being damaged by further caries and periodontal destruction.
After receiving fixed dentures and dental implants, it is especially important to keep local cleaning after surgery.
Regarding the life span of dentures, some people can use them for 10 to several decades, while others can only use them for two or three years, which is related to the materials used to make dentures, the speed of change of individual remaining teeth and alveolar bone, but the most important thing is whether you are good at using and maintaining them.
Event dentures use precautions
1, dentures generally withstand a force of about 2-3 kg, so it is best not to eat all kinds of things with hard shell.
2, glutinous rice, fudge and other sticky food to eat less, to prevent the dentures from sticking out of the dental bed. If you really want to eat the best amount of less, and chewed in several times.
3, do not use the incisors part of the denture chew food, in order to prevent the dentures off.
4, keep the dentures clean and hygienic, brush and clean after each meal, and be sure to take them off and soak in cold water before going to bed, so as not to accidentally swallow them or accidentally enter the trachea, resulting in serious adverse consequences. In the morning scrub clean and then placed in the mouth. Brush should be put some toothpaste with a toothbrush along the teeth to brush clean.
5, dentures in the first 1-2 weeks of wear if there is pain, discomfort, should immediately go to modify.
6, all dentures can not be repaired by themselves.
7, movable dentures use more than 5 years usually need to be replaced.
8, dentures have problems, do not use reluctantly, so as not to damage the natural teeth or other tissues in the mouth.
9, such as fracture, wear and tear should be promptly repaired or replaced. If the dentures fall off, break or are missing, all the broken pieces should be brought to the hospital for examination and repair.
10.Dentures with stainless steel wire rings should be worn in one direction, not using strong pushing. When taking out, the dentures of the upper jaw should be hooked to the ring and pulled downward, and the dentures of the lower jaw should be pushed upward with the tip of the thumb. Patience should be practiced at the beginning of denture removal, don’t push too hard, it is better to pull the abutment more than pushing the ring when removing the denture, when wearing the denture, be careful not to bite into place with your teeth, otherwise it is easy to make the ring or denture break.
11, do not use hot water, alcohol, salt water, disinfectant solution, etc., so as not to cause surface cracks, roughness, coloring and even deformation.
(1) fixed denture hygiene maintenance is relatively simple, mainly with toothbrushes, dental floss and toothpicks and other cleaning tools to get rid of impurities on the surface and edges of dentures to reduce plaque adhesion.
(2) porcelain teeth and all-porcelain teeth will shatter when subjected to pressure beyond its stress range, so do not bite too hard food, such as hazelnuts and other nut shells.
(3) Porcelain teeth and abutment teeth joints tend to collect plaque, the formation of tartar, also need to go to the hospital for regular cleaning.
(4) The interference of fixed denture on magnetic resonance images gradually attracted the attention of scholars. Some scholars have shown that wearing a nickel-chromium alloy restoration can be safely subjected to cranial MRI, but this material can distort the MRI of its adjacent tissues. The precautions for the use of dental implants are the same as for fixed dentures, with emphasis on the need for regular follow-up visits as required by the doctor.