A denture reline is a process that reshapes the tissue-contacting (inside) surface of a denture. It helps the denture fit the gums and underlying bone more closely when those tissues have changed over time. A denture reline is commonly used for full dentures and sometimes for removable partial dentures with an acrylic base. It can be performed in a dental office (chairside) or in a dental laboratory, depending on the material and case.

A duplicate denture is a copy of an existing removable denture made to match its shape, tooth position, and bite as closely as possible. It is commonly used in complete dentures (full dentures) and sometimes in partial dentures, depending on design. Clinicians may use it as a spare appliance, a starting point for a replacement denture, or a diagnostic “template” during treatment planning. The goal is usually to reproduce what already works for the patient while allowing controlled updates when needed.

A copy denture is a new denture made by duplicating the shape and key features of an existing denture. It is commonly used when a patient has an old denture they are accustomed to but needs a replacement. The process aims to “copy” familiar fit, bite, and appearance while allowing planned improvements. It is used in complete dentures and, in some cases, removable partial dentures.

An FP-3 prosthesis is a fixed (non-removable) implant-supported restoration designed to replace missing teeth **and** the appearance of lost gum tissue. It is most commonly used for full-arch or large-span implant reconstructions where natural bone and soft-tissue contours have changed. The prosthesis is typically secured to dental implants, often with screws, and is removed only by a clinician for maintenance.

An FP-2 prosthesis is a type of fixed dental prosthesis design often discussed in implant dentistry. It replaces the visible tooth crown and part of the tooth root portion, creating a slightly “longer tooth” appearance. It is commonly used when teeth are missing and there has been a moderate amount of gum and bone shrinkage (resorption). It is typically delivered as an implant-supported fixed restoration rather than a removable denture.

FP-1 prosthesis is a type of fixed implant-supported dental prosthesis designed to replace teeth only. It is built to look like natural crowns emerging from the gums, without adding artificial gum material. It is most commonly used for implant rehabilitation when the patient’s gum and bone levels allow a natural-looking tooth-to-gum transition. It is often discussed alongside FP-2 and FP-3 designs as part of a prosthetic classification system.

A full-arch fixed bridge is a non-removable dental prosthesis that replaces all (or nearly all) teeth in one jaw. It is attached to dental implants or, less commonly, to natural teeth that act as supports. It is commonly used for people with extensive tooth loss or teeth that cannot be predictably restored. It is designed to feel “fixed” in the mouth, meaning it is not taken in and out like a removable denture.

A zirconia hybrid bridge is a fixed dental prosthesis made primarily from zirconia and supported by implants or, less commonly, teeth. It is often used to replace multiple missing teeth, including full-arch (all teeth in an upper or lower jaw) restorations. “Hybrid” generally refers to a bridge that combines a rigid substructure with an attached gum-colored portion and replacement teeth. It is commonly discussed in implant dentistry as a long-span, fixed alternative to removable dentures.

All-on-6 is a full-arch implant treatment concept that uses six dental implants to support a fixed replacement for an entire upper or lower arch. It is commonly used when many teeth are missing or when remaining teeth have a poor long-term prognosis. The goal is to provide a stable, non-removable set of teeth that functions more like natural teeth than a conventional denture. The exact design and materials vary by clinician and case.

All-on-4 is a dental implant treatment concept used to support a full arch of teeth with four implants. It is most commonly used for people who are missing all teeth in an upper or lower jaw, or whose remaining teeth cannot be predictably saved. Two implants are typically placed toward the front of the jaw and two are placed farther back at an angle to improve support. The implants hold a fixed (non-removable) full-arch prosthesis, which can be delivered the same day in some cases.