Modern dentures are often fabricated in dental laboratories, using a combination of several chemical compounds such as PMMA (polymethylmethacrylate) to produce a specific shade to match the colour of the surrounding tooth. Teeth used for dentures are usually made out of acrylic, porcelain and polymers.
Step 1: Dental Impressions
The first step in making dentures begins with a dental impression of the patient; the dental impression is usually made of alginate and mixed with plaster of Paris to produce a stone cast of the mouth hence creating a replica of the arrangement and distance of the tooth which provides a better fit for the dentures. The dental impression cast is set at the maxilla or mandible or both, depending on the type of dentures. A bite registration is made from the cast establishing proper tooth alignment. A wax cast of the dentures is then made of the stone cast.
Step 2: Wax Casts
The wax cast will serve as the base after proper alignment of the teeth; the denture teeth will be placed at wax cast and adjusted to fit the mouth of the patient thru the stone cast. Final processing of the dentures will be done once the proper tooth alignment and proper distance of the dentures, with the exact fit of the mouth. Final processing of the denture is usually done by lost-wax process.
Step 3: Adjusting to Your Dentures
New dentures in the mouth would often result to increase saliva production due to the brain recognizing the dentures as foreign and food. As the brain interprets the signal, it would result into increased saliva production. This only lasts for the 48 hours. After 48 hours, the brain is already accustomed to the dentures and would recognize this as non-food item, hence reverting to normal saliva production. New dentures can cause dental sores due to compression of the dentures in the soft tissues of the gums. Adjustment of the dentures can usually solve this problem.
Gagging is also a potential problem for new dentures. This is due to the dentures being too thick or too thin, too loose or too tight in the far posteriorly of the soft palate. Any excess movement of the dentures will usually result in activation of the gag reflex. Psychological aspect of gagging is also considered during installation of new dentures, as psychological gagging is out of reach for dentist. Loss of taste can also result from new dentures; however this is only transient and usually resolves after a week.
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