We interviewed the best Fort Worth Dentist H. Peter Ku, D.D.S., PA about the the term cementation. It is known as the procedure of attaching prosthesis to teeth by using a dental material called dental cement.
To be effective, the cement must be fluid, and it should be able to flow into a continuous film of 25-vm thick or less without fragmentation. The procedure consists of placing the cement on the internal surface of the prosthesis and extending it slightly over the margin. This then is set and any excess cement is removed.
Placement of Cement:
The cement paste should coat the entire inner surface of the crown, and it should extend slightly beyond the margin. It should fill about half of the interior crown volume. The clinician should make sure the occlusal aspect of the tooth preparation does not have voids so there is no air entrapment in the area during the early stage of the seating.
Moderate finger pressure should be used to displace any excessive cement and to seat the crown or other prosthesis on the preparation. Another alternative method is to use a vibrational instrument to facilitate the seating of the prosthesis.
Removal of Excess Cement:
The excess cement accumulates around the area after the completion of seating. The removal process depends on the specific cement’s properties. If the cement sets to a brittle state and does not adhere to surrounding surfaces like the tooth and the prosthesis, it is best removed after it sets. This occurs for zinc phosphate, silicophosphate and ZOE cements. For glass ionomer cements, polycarboxylate cements and resin-based cements that are potentially capable of adhering both chemically and physically to the surrounding surfaces, the excess cement removal varies. The clinician can protect the surrounding surface with a separating medium such as petroleum jelly, which inhibits the material’s adherence to the surfaces. Then the clinician can easily remove any excess after the cement sets. Another technique involves the removal of excess cement as soon as the seating is completed, which prevents the material from adhering to the adjacent surfaces. The viscosity of the cement increases as it sets, and, eventually, it becomes solid. Attempts to remove the excess cement shortly before it turns into a solid may cause unnecessary risks. At this stage the cement is so thick that any attempt to remove the excess may inadvertently pull the cement from the marginal area. The material most likely to do this is a polycarboxylate cement that takes on a rubbery stage before setting.
Aqueous-based cements continue to mature over time after they have passed the defined setting time. If they are allowed to mature in an isolated environment free of contamination from its surrounding environment, free of moisture and free from loss of water through evaporation, the cements will acquire additional strength and become more resistant to dissolution. It is recommended that coats of varnish or a bonding agent should be placed around the margin before the patient is discharged.
Mechanism of Retention:
A prosthesis can be retained by a combination of mechanical or chemical means and factors. On the rough surface, the cement fills the areas on both surfaces. The entire interface region then appears continuous, and the cement layer can resist the stress acting along the interface. This situation represents a typical mechanical retention, and the strength of retention depends on the strength of the cement. The forces may act to dislodge the prosthesis. For certain situations, mechanical retention alone is insufficient, and the incomplete wetting can also leave voids on the surface that may allow an influx of oral fluids. Because of these deficiencies, chemical bonding is the ultimate goal for achieving retention. Theoretically, chemical bonds can resist Interfacial separation, which improves retention. Aqueous cements with polyacrylic acids do provide chemical bonding through the use of acrylic acids. Resin-based cements also use specialty function groups, which creates this same chemical bonding.
Dislodgment of Prostheses:
Fixed prostheses can lose that bond because of biologic or physical reasons. The disintegration of the cements can result from either the fracture or erosion of the cement. For brittle prostheses, like glass-ceramic crowns, a fracture of the prosthesis can also occur because of physical factors like intraoral forces, flaws within the crown surfaces and voids within the cement layer. In the mouth, cementation agents are immersed in an aqueous solution. This can make the cement layer near the margin start to dissolve and erode leaving a space. This space can be susceptible to plaque accumulation and recurrent caries. Therefore, the margin should be protected with a coating (if possible) to allow for the continuous setting of the cement.
Toothbrush is one of the most important tool for maintaining and keeping oral care. You may use it several times in a day and somehow use it after meals. Some people were taught that brushing our teeth will get rid of the bacteria in our mouth from what we consume or the foods that we eat, unfortunately bacteria can be found in our toothbrush too. How was it possible? There are several ways on how you get bacteria and will sit in your toothbrush and in order to get rid of this the tips below will give you a clue on why you need to swap your toothbrush most often and proper way of keeping it.
Clean You Toothbrush Regulary – Regular cleaning of toothbrush like doing it everyday could keep away bacteria that could possibly sit on it. We all know that we brush our teeth to get rid of the bacteria in our mouth but if we don’t rinse well after using, the bacteria could live in your toothbrush thus can cause infection or blood borne viruses.
Buy a New toothbrush after being Sick – Though there are no evidences that shows that you can get the same illness by not replacing you toothbrush after being sick, but if you care about your health then why not do this? Beside this is for your safety and assurance. Buying a new toothbrush is cheaper rather than getting sick again.
Replace toothbrush every 4th month – Your toothbrush needs to be replaced sooner.
If you think that the bristle is too soft or worn out already and If you want to thoroughly take away the plaque in your teeth then you have to consider replacing a new one to brush off the germs and bacteria sitting in your mouth and teeth.
Store your Toothbrush in a clean and proper place – Storing your toothbrush in the toilet can possibly contain a lot of bacteria including the dirt in the toilet and that you should think twice, Think about the dirt that you have flushed in your toilet and that you will received the same dirt once you used it in your mouth. Of course you don’t want that. It is best to place your toothbrush away from the toilet and cover it with lid, in that way it wont catch the bacteria that floats in the air.
Never Share toothbrush – No matter how much you like the person or perhaps trust him or her with anything. Sharing each others toothbrush is a big no-no. Remember that each mouth has different amounts of bacteria in their mouth from eating different kinds of food. Also it is always recommended to maintain proper hygiene when it comes to oral. As mouth can easily get any kind of illness or disease especially if there are cuts or wounds from brushing of flossing.
So now you have finally know the importance of replacing your toothbrush and what are the things you need to do so you can avoid certain bacteria that can cause illness. Just follow the tips above and assure a heathy clean and minty fresh mouth all day. To know more about proper dental care you can check out http://www.womenshealthmag.com/
Dentistry and orthodontics, at first glance can seem to be interchangeable – or at the very least so similar that it doesn’t make any difference. This, however, is far from the case. It is true that both focus primarily on oral health, with particular focus on tooth care and protection. An orthodontist, however, is a graduate of dentistry who has undergone an additional three years of study to become a qualified specialist in the field of dental aesthetics, ensuring that all aspects of oral development are focused on.
Often this involves assessing the growth of teeth, facial structure and the development of the jaw to identify the best way to proceed. An orthodontist is the specialist who will correct misalignments in the jaw or teeth, through the use of braces, retainers or aligners. A dentist, on the other hand, will focus on the health of the teeth as a whole, inspecting cavities and deciding on treatment for teeth in poor condition.
While a qualified dentist may be able to provide some orthodontic treatment, such as the prescribing and fitting of braces for general misalignment or structural correction, a fully qualified orthodontist will often become a specialist in the field and focus all of their time with patients into the overall improvement of oral aesthetics. Prior to undertaking the additional study required to become a specialist, it is necessary for the individual to gain working experience in a number of specialized fields of dentistry to ensure that they have an understanding of everything that is required of a specialist in orthodontia.
Unlike a dentist, the individual studying orthodontia will require experience in pediatric dentistry, to ensure that any corrective procedures they prescribe can be age-appropriate, and restorative dentistry, to ensure that they will be able to correct considerable damage done to patients’ oral health such as a cracked tooth from a significant fall. In addition to this, experience in maxillofacial surgery is also necessary, as the maxillofacial area contributes to facial and oral aesthetic, and allows for further study of corrective surgery to this area.
In summary, dentistry takes a broader approach to oral health, focusing on regular check-ups, the removal of problem teeth, providing a patient with fillings and taking X-Rays of the teeth to assess any problems therein, while orthodontia focuses on the correction of misaligned teeth and jaws through non-invasive procedures such as braces for maximum aesthetic appeal.
Did you know that smiling is not only a social cue and a way to express your feelings, but that the research has also shown that it relieves stress, boots your immune system and generally makes you appear friendly, open and welcoming? Well, you are probably aware of how amazing it is to be able to smile and flash your gorgeous teeth, but what happens when your teeth are not as perfect? Should you just give up smiling all together?
Since I consider myself to be very open and friendly, the moment I started to perceive changes in my smile I realized that unless I take immediate action, these physical changes will also trigger emotional changes and as a result I will become a completely different person. I was not prepared to go through it, so I have made my decision – I will get veneers! Still, there was more than just one thing that affected my decision. In fact, here are four most important reasons why I decided to get veneers at the very early age (I was 32 at the time and a lot of friends tried to dissuade me from doing it).
An excellent animated video that describes some of the basics
Smile, You Pretty Thing!
I wanted to achieve a fuller smile, so I turned to the option on getting porcelain veneers. I have had great, but naturally smaller teeth, and I sometimes felt that a broader smile and more contoured gums would be the perfect fit for me! In order to achieve the perfect smile, I have decided to say bye-bye to my natural teeth and their natural shape, and I have never regretted this decision. I found a local dentists from the dentistsinsc website that could make my smile so much prettier.
My Madonna Gaps
For years I have tried to persuade myself that my gaps could be adorable. After all, there are so many famous people who look endearing with their gapped teeth. However, even though sometimes gaps can look endearing, other times it makes your smile look anything but perfect. Unfortunately, latter was the case with my smile. In order to achieve a perfect smile people I chose to get veneers.
My Chipped Tooth
I never realized how symmetry was important until I chipped my tooth. I was absolutely desperate, but my dentist persuaded me it was not my fault. In fact, your teeth will worn out over time and even more than one tooth will eventually become broken, chipped or cracked. However, it was unbearable for me to look at myself like that and I have stopped smiling. Then I realized that it would be for the best to get veneers and get it over with. Also, the porcelain veneers are very endurable, and you won the able to crack them or chip them easily.
I Got Veneers In Order To Get Whiter Teeth
If you want to have whiter teeth the answer might lie in getting porcelain veneers. For a long time I was not satisfied with the shade of my teeth so I whitened them. However, the stains kept coming back due to the food and the drinks. However, veneers do not change their color with the consummation of certain foods and drinks. Therefore, if you too want to get rid of discolored teeth you might think of getting porcelain veneers.
If you are looking to do the same thing I did with your veneers and you are in the South Carolina area then have a look at dentistsinsc.com. This is where I found my dentist to do the work.
Have you or your kids been sick? It's a great time to throw away your toothbrush. While you generally can't get sick again from the same virus, you don't want to risk someone else in the family using the brush (yuck!) or spreading contact with other toothbrushes. #DentalFAQ #ToothbrushFacts ...