By establishing two implanted attachments to the lower jaw, an overdenture is able to sit securely in place to instantly increase retention, stability, and comfort. This is especially important in lower-jaw, full-denture situations where traditional dentures tend to have less adhesion due to a limited foundation and the tongue muscle dislodging the prosthetic teeth.
It is extremely important to practice healthy dental hygiene when wearing dentures. There is an increased risk of developing a more serious medical condition should oral irritation result from improper dental hygiene. These conditions include, but are not limited to, periodontal disease, leukoplakia (thickened white, potentially precancerous patches on the mucous membranes, also called smoker’s tongue) and fungal (denture stomatitis) infections.
The process of fabricating a denture usually begins with an initial dental impression of the maxillary and mandibular ridges. Standard impression materials are used during the process. The initial impression is used to create a simple stone model that represents the maxillary and mandibular arches of the patient's mouth. This is not a detailed impression at this stage. Once the initial impression is taken, the stone model is used to create a 'Custom Impression Tray' which is used to take a second and much more detailed and accurate impression of the patient's maxillary and mandibular ridges. Polyvinylsiloxane impression material is one of several very accurate impression materials used when the final impression is taken of the maxillary and mandibular ridges. A wax rim is fabricated to assist the dentist or denturist in establishing the vertical dimension of occlusion. After this, a bite registration is created to marry the position of one arch to the other.
Implants: An implant is a metal post that is inserted into the bone of the upper or lower jaw. This post is then used to replace a single tooth by attaching a crown to it, or multiple teeth by attaching a bridge to multiple implants. Implants are the most expensive option for tooth replacement, but implants simulate natural teeth better than any of the other options.
An overdenture is a removable dental prosthesis that covers and rests on one or more remaining tooth roots. A removable partial denture is a dental prosthesis that replaces some teeth and is built around existing natural teeth. Both the overdenture and the removable partial denture may be connected to the remaining tooth roots or remaining natural teeth with anchors made of metal or plastic. These connections improve stability and the retention of both prostheses.
