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Fixed retainers are often used to provide orthodontic retention and avoid relapse. [14] They commonly consist of a wire bonded with acid etch and composite to the lingual/palatal surface of the anterior teeth. In fixed retainers, composite is usually placed to bond and to cover the wire, whilst ensuring no interference in the interdental space.
Hawley retainers are the most common type of retainers. This picture shows retainers for the top (right) and bottom (left) of the mouth. In order to prevent the teeth from moving back to their original position, retainers are worn once the treatment is complete. Retainers help in maintaining and stabilizing the position of teeth long enough to ...
In the United States a smart retainer sensor is exclusively provided by orthodontists who have signed up to be providers, and should retail for around $100. The SMART Retainer was featured on the May 15 episode of The Today Show. [1] Here is an abstract of an article in the American Journal of Orthodontics and Dentofacial Orthopedics:
Removable retainers are made from clear plastic, and they are custom-fitted for the patient's mouth. It has a tight fit and holds all of the teeth in position. There are many types of brands for clear retainers, including Zendura Retainer, Essix Retainer, and Vivera Retainer. [46]
A removable partial denture (RPD) is a denture for a partially edentulous patient who desires to have replacement teeth for functional or aesthetic reasons and who cannot have a bridge (a fixed partial denture) for any reason, such as a lack of required teeth to serve as support for a bridge (i.e. distal abutments) or financial limitations.
Final classification is based on the location of the splinted teeth. 1. Extra-coronal splints: Are attached to the enamel of several teeth; Use stabilising wire, fibre-optic ribbon or similar stabilisation devices to bond the outside of the teeth like a fixed orthodontic retainer. Further examples include nigh guard and tooth-bonded plastic. 2.
Resin-retained-bridges should be considered when a fixed prosthesis retained by natural teeth is required. [3] The use has been driven by the advent of evidence-based dentistry showing the benefits to patients of reduced tooth preparation and the importance of an intact enamel structure for the long-term health of the teeth.
There has been a decline in both the prevalence and incidence of tooth loss within the last decades; [1] [2] people retain their natural dentition for longer. Nonetheless there is still a great demand for complete dentures as more than 10% of adults aged 50–64 are completely edentulous, with age, smoking status and socioeconomic status being significant risk factors. [2]