In dentistry there are two common types of restorative cavity filling material; amalgam and composite. Let’s take a deeper look at both materials and what they are composed of. Amalgam has been the traditional material for filling cavities in posterior teeth for the last 150 years and, due to its effectiveness and cost, amalgam is still the restorative material of choice in certain parts of the world. In recent times, however, there have been concerns over the use of amalgam restorations (fillings), relating to the mercury release in the body and the environmental impact following its disposal. Resin composites have become an esthetic alternative to amalgam restorations and there has been a remarkable improvement of its mechanical properties …show more content…
Amalgam is a combination of mercury, silver, tin and copper. Mercury, which makes up about half of the compound, is used to bind the metals together and to provide a strong, hard, lasting, durable filling. A composite filling is a; tooth-colored, insensitive to dehydration, easy to manipulate, and reasonably inexpensive filling. This composite material is a plastic and glass mixture used to restore decayed teeth. Amalgam is a very, strong durable filling material, so it can last years longer than other materials. The typical life-span for amalgam is ranges from 10 to 15 years. They are a great option to fill in any decayed areas of your teeth. The composite fillings don’t have the same longevity as amalgam fillings, and on average sustain for about 7-10 years. Nonetheless, composites still show to be an incredibly strong, successful treatment for most cavities. All this talk about composite and amalgam might have you thinking; what is more affordable and how much do they even cost? Well, hold tight, because we are about to find out. Amalgam fillings can cost between $50 and $150 for one to two teeth, and between $120 and $300 for more than two teeth. While composite filling range between $90 and $250 for one to two …show more content…
Composite has the worst coefficient of thermal expansion, the most water absorption, the most shrinkage during placement and the most internal stress. In conclusion, while composite and amalgam fillings, both have advantages and disadvantages we must look at the big picture and take all the factors into consideration which choosing the best filling option for you. I am no expert and do not seek to persuade you one way or the other, but rather I hope to provide you with some research regarding both materials and let you decide for yourself which material will better suit your needs. What material you should choose depends on multiple factors, including: your dentist, the location and size of your cavity, dental insurance/cost, allergic reactions, and preference to name a few. Nevertheless, I will conclude this paper by sharing with you what I believe to be the restorative material with the most benefits. Based on my findings composites are more likely to succumb to recurrent decay in the short term, but that amalgam is more likely to fracture a tooth in the long term (longer than many of these studies go). Recurrent decay can be fixed with a new filling while a fractured tooth is either lost or needs a crown and/or root canal. Even though, composite may cause more problems in the short term their solution to that problem is easier and cheaper than a fractured
Just think about all the expensive dental treatments and procedures and you will probably be starting to consider religiously doing proper dental oral hygiene. Even simply getting a dental crown can cost you more than $500 for the quality ones. And there are other dental procedures or treatments that any Melbourne dentists may require for a specific problem.
Composite restoration usage in dentistry is increasing. Because of this interest in the longevity and reliability of composite fillings also is increasing1. One problem that can occur with composite restorations is micro-leakage. This is when microgaps at the tooth-restoration interface allow fluids and bacteria into the restoration2. These gaps are formed when the material is polymerized and shrinks, which causes the material to pull away from the margins of the preporation2. Problems that can arise from micro-leakage are secondary carries, hypersensitivity, pulp stimulation, and marginal discoloration3. This is why dentists are trying to find ways to reduce micro-leakage of composite restorations.
Pit and fissure sealants are tooth coloured materials that are applied on the occlusal surfaces of the posterior teeth in deep grooves, pits and fissures. They protect the tooth from various bacterial plaques in these caries prone areas of the teeth. The sealants protect these areas by sealing of the entrance to bacteria which give rise to dental caries in susceptible individuals especially in children. Pit and fissure sealants are now commonly being used due to the increase in the awareness among public about dental caries prevention
...at more tentatively, with fluoride gels and varnishes or a chlorhexidine varnish. Some dentists may restore root caries with amalgam restorations. Another treatment option used by some dentists to restore root caries is Glass Ionomer Cements. Glass ionomer cements were first introduced in the early 1970s. They have good adherence to mineralized tooth tissue, which keeps the removal of tooth structure to a minimum. Glass ionomer cements also have the ability to leak and absorb fluoride into the tooth, which decreases the rate of secondary caries. These factors have increased the potential for glass ionomer cements to replace amalgam as a restorative material. (Hammel)
Ceramics are most commonly used in dental applications as restorative materials for crowns, cements and dentures.
Dr. Gary Silva and his team are highly trained and experienced in providing restorations for all sorts of dental issues. We offer complete and partial dentures, tooth-colored fillings, crowns, bridges, and more. Dr. Silva’s unique background gave him real restorative experience early in his career. For more than 20 years, Dr. Silva has been offering patients the chance to gain a beautiful, functional smile with his restorative dentistry.
In each case they started by extracting the remaining teeth in one jaw and examined clinically and radiographically to make sure root canal treatment can be made and that there is periodontal support available for the denture. After root canal treatment was made, they were sealed with amalgam and topical fluoride, then the application of gold copings. Finally the process of gingivectomy takes place. After all these steps the denture is ready for construction. After construction, relief of the fitting surface of the denture is made. The dentures were delivered to the patients and were ready for use.
The bond strength will be 20-50% lower in caries-affected dentin than the bond strength to sound dentin, and even lower in caries-infected dentin. The decrease in bond strength is because the caries-affected and caries-infected dentin is more porous, contain more water, and thicker hybrid layer, which is not necessarily well-infiltrated, despite the bonding strategy. This lower bond strength that occur in caries-affected dentin is due to structural changes caused by caries progression. Caries will reduce the mineral content and crystallinity of the hydroxyapatite, and alter the secondary structure of collagen. Also, decreased distribution of sound collagen fibrils and proteoglycans. All of these structural changes will result in a substrate that has lower mechanical properties, which will have great impact on the bond strength. There is evidence that adhesives will be poorly polymerized in caries-affected dentin.
3) Describe the rationale and demonstrate how to chart existing restorations (amalgam, composite, gold, crowns, bridges, other), missing teeth, incipient caries and caries.
... teeth was 79% and 65% in the permanent first molars. The arrest rate for caries on both permanent and primary teeth was 77%. In comparison, a study done on children in Greenland, the arrest rate for dentinal caries applied with just NaF varnish was only 33%(Ekstrand, et al; 2010)
...an be seen that composite teeth form a high stability bond than PMMA teeth. This is due to the filler content allowing for low shrinkage, increased wear resistance and better cross-linkage with the base. In overall consensus the technique of heat-curing is believed to achieve significantly more polymer cross-linkage than that of self-curing the acrylic resin PMMA base - giving us a stronger base to teeth interface. It should be noted however that both techniques can be used for denture fabrication to achieve a desired result and it is up to the dentist and the technician to determine which one they prefer however, composite teeth bonded to a heat-cured PMMA base works best. Though the tooth and base by themselves may be strong, if the interface between them is not strong, this will result in the overall denture produced being weak independent of material selection.
Teeth #1, 16, and 17 are unerupted. There is a PFM on tooth #22. There were two 3-unit bridges: teeth #19 through 21 with a gold abutment on tooth #19, the pontic on tooth #20 and a PFM abutment on tooth #21, as well as on teeth #23 through 25, with PFM abutments on teeth #23 and 25, and the pontic on tooth #24. The amalgam restorations are as follows: an MO on tooth #2 and an MOD on teeth #3 and 5. There are cervical composites on teeth #3 and 4. Tooth #15 was missing the crown. Tooth #13 was a root tip. There are class two furcations on the lingual surface of teeth #1, 18, and 19, and a class one furcation on the buccal surface of tooth #18. There is 2mm of recession on the facial surfaces of teeth #4, 5, 6, 7, 8, 15, 29, 25, 26, and 27, as well as the lingual surfaces of teeth #3, 5, 6, 7, 8, 15, 21, 22, 26, 27. There is 4mm of recession on the facial surfaces of teeth #3 and 23, as well as the lingual surfaces of teeth #12, 23, and 25. There is 6mm of recession on the facial surface of tooth #22. Teeth #3, 4, 18, 26, and 27 had attrition. There was erosion on the lingual and incisal surfaces of teeth #8 through
Our analysis revealed that Affinis® had more dimensional stability in comparison to Panasil® and in the Panasil® impression material, the percentage of dimensional change was significant after 168 h. However, dimensional changes in all of the evaluation times were in the American Dental Association (ADA) standard range. Therefore, these materials had acceptable clinical dimensional stability for approximately 168 h. In the current study, impressions were made from stainless steel dies following the ADA specification for impression materials. This provides a protocol that can be easily replicated by others and it is the same as making a clinical
First and foremost, cosmetic dentistry is a costly affair. Surgical treatment can cost up to $1000 or more per tooth. And in many cases, dental insurance companies may not provide coverage. For example, dental implants are not covered by insurance companies because they are considered luxury items. Similarly, your local government or health body may not provide any kind of subsidy. Another important factor that needs to be considered is proper oral hygiene. Improper oral hygiene or habits such as smoking can have a negative impact on dental implants. It is very essential to take proper care of the implant or else the implant may fail within a short span of time. Depending on the quality and durability of the materials used, you may have to undergo restorative procedures again in 10 or 15 years after the initial surgery. Even though cosmetic dentistry is a costly procedure, there are several ways to save money. One of the best ways is to get the procedure done in countries such as China or India. In many countries, the costs of surgery are substantially lower and the quality is almost the same as in the developed countries. Dental tourism is a good option for you if you are willing to explore a
The existence of micro-leakage in dental restorations was first identified in scientific research in 19126. In a study done by Harper (1912), air pressure was used to penetrate the surface between an amalgam restoration and cavity preparation7. By applying pressure through a hole in the pulpal floor, Harper could quantify the amount of pressure needed to establish leakage through the emergence of bubbles from the margins of the restoration. Research has come a long way since Harper first recognized micro-leakage. Adaptations of new materials used when placing composite restorations like BondAband, a light-cured glass-ionomer cement has been shown to reduce marginal micro-leakage in posterior restorations8. A decrease in microleakage has also been shown with the use of an ...