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Implant-supported. Edentulous patients with sufficient amount of bony ridge on their jaws can opt for implant supported overdenture. [4] This type of over denture gains support from both the dental implants and intraoral tissues. Having implant-supported overdenture provides better stability of prosthesis and reduce bone resorption. [10]
Fixed retainers are used in situations where instability is more likely, such as severe rotations, periodontal disease and median diastemas. Occasionally the patient will require a removable retainer as well. Fixed bonded retainers can be designed with a smooth wire or flexible spiral wire which is also known as multi-strand wire. [15]
Implants preserve the integrity of the teeth adjacent to the edentulous area, and it has been shown that dental implant therapy is less costly and more efficient over time than tooth-supported FPDs for the replacement of one missing tooth. The major disadvantage of dental implant surgery is the need for a surgical procedure. [17]
Over 50% of patients have some reversion to pre-treatment positions within 10 years following treatment. [45] To prevent relapse, the majority of patients will be offered a retainer once treatment has been completed and will benefit from wearing their retainers. Retainers can be either fixed or removable.
A crown is used to cover a tooth and may be commonly referred to as a "cap." Traditionally, the teeth to be crowned are prepared by a dentist, and records are given to a dental technician to construct the prosthesis. The records include models, which are replicas of a patient's teeth, and the impressions used to make these models.
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. The bridge is currently in favour in the United Kingdom for these reasons.
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.
For example, there might not be enough alveolar bone to support an implant in an area where a crown lengthening procedure has been completed. Thus, it would be prudent for patients to thoroughly discuss all of their treatment options with their dentist before undergoing an irreversible procedure such as crown lengthening.
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