What is Valplast ?
Valplast is a flexible denture base resin that is ideal for partial dentures and unilateral restoration. The resin is a biocompatible nylon thermoplastic with unique physical and aesthetic properties. Valplast® allows your patient's natural tissue tone to appear through the material, matching the basic shade categories (medium pink and light pink). It is also guaranteed for life against breakage .
When should Valplast® be used?
Valplast® may be used whenever you are considering a removable partial denture for your patient. Valplast® provides a fully functional yet aesthetically superior removable partial. The practical invisibility of Valplast® makes the product ideal also for cases when your patient prefers not to have a fixed restoration or implant, but still wants an aesthetic restoration.
Valplast® feels more natural in the mouth, and more comfortable because of the thinness and light weight, and gives them more confidence when eating, smiling, and appearing in public because of the excellent retention and aesthetics.
Valplast® Preparation Techniques
Valplast® uses the Retento-Grip® tissue-bearing technique for retention. No tooth or tissue preparation is needed. A custom tray is normally not necessary. A custom bite and try-in should be taken for accuracy in free-end saddle cases.
Recommendations for Patient Care:
Like any removable prosthesis, the patient should be instructed to utilize good hygienic practices to maintain the appearance and cleanliness of the Valplast restoration. The prosthesis should be soaked overnight at least three nights a week in a good denture cleaner. Or, the patient may immerse the case in a strong denture cleaner daily for about 10-15 minutes. The case should be rinsed and brushed before reinserting it in the mouth.
Standard dentures are made for people who are already missing all their teeth. The top denture relies on "suction" to retain it, and the hardness of the underlying tissues for its stability. It generally takes 4 or sometimes more appointments to make a set of standard dentures.
The first appointment consists of an oral examination, sometimes X-Rays, and a set of impressions of the upper and lower edentulous (toothless) ridges (gums). These impressions are poured with plaster to form accurate models of the shape of the edentulous ridges. Other parameters are determined such as the shade, size and shape of the teeth that will be placed on the new dentures.
The second appointment is called the "wax try-in".. The wax try-in looks just like a real denture, except that the base fits loosely on the gums, and the teeth are embedded in wax instead of plastic.
At this point, if something is wrong, it can be changed. If the teeth look too long, or the patient clicks when talking, or the midline is wrong, we can send the denture back to the lab where a technician can melt the wax and reset the teeth to specification.
The third appointment is the insertion date when the patient walks out of the office with new dentures. The plastic tends to shrink while being processed, so some adjustment is usually necessary before they will get the suction that you might associate with a new denture.
A crown fits over the entire top of the tooth above the gum line. Crowns cover, protect, seal and strengthen a tooth. A crown is needed when a filling just will not work. A crown may be made of white porcelain, or porcelain fused to metal.
There are many situations that may call for a crown:
Large decay. If a tooth has decay so deep and large that a filling will not stay, or if the tooth structure is weakened, a crown must be placed on the tooth to save it.
Large old fillings. When large old fillings break down, or get decay around them, they usually need to be crowned. It is important to crown a tooth that has been structurally weakened to prevent a cracked or broken tooth.
Cracked tooth. When a tooth is cracked, a filling will not seal the crack. A crown has to be placed over the tooth to hold it and the crack together.
Broken / Fractured tooth. A tooth that has broken is usually too weak to hold a filling. A crown will hold the tooth together and prevent it from breaking again. If the fracture involves the nerve, Root Canal Therapy may be required before the tooth is crowned.
Sensitive teeth. Teeth that are very sensitive, either from a lot of "wear," or from receded gums, sometimes require crowns to seal and protect the teeth from hot and cold sensitivity.
Root Canal Therapy. A tooth that has undergone Root Canal Therapy will need a crown to properly seal and protect the tooth. A tooth with Root Canal Therapy is more brittle than a tooth with a healthy nerve and blood supply. A crown provides the necessary support to the tooth.
PORCELAIN FUSE TO GOLD is the most excellent choice among all types of crowns due to the following reasons:
- Because of its physical properties, gold is a very workable metal. It has a very precise fit with the crown.
- Gold crowns withstand biting and chewing forces well. They will not chip. Gold crowns probably have the greatest potential for lasting the longest.
- Although they are very strong, the wear rate of a gold crown is about the same as tooth enamel. This means that a gold dental crown won't create excessive wear on the teeth it opposes.
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