implant crown: Definition, Uses, and Clinical Overview

An implant crown is a tooth-shaped cap that replaces the visible part of a missing tooth. It attaches to a dental implant (a titanium or titanium-alloy post in the jawbone) through an abutment or a built-in connection. An implant crown is commonly used for single-tooth replacement in the back or front of the mouth. It is designed to restore appearance and function without relying on adjacent teeth for support.

key and keyway: Definition, Uses, and Clinical Overview

key and keyway is a matched mechanical connector used in some dental restorations to help parts fit together in a controlled way. The **key** is typically the “male” portion, and the **keyway** is the matching “female” slot or channel. It is most commonly discussed in **fixed prosthodontics** (bridges and multi-unit crowns), especially when a bridge design needs controlled movement. Some clinicians also use the terms when describing certain **attachments** or precision-fit components in indirect restorations.

non-rigid connector: Definition, Uses, and Clinical Overview

A **non-rigid connector** is a mechanical joint used in some fixed dental prostheses (commonly called bridges). It links two parts of a restoration while allowing a small, controlled amount of movement between them. In plain terms, it is a “stress-relieving connection” designed to reduce harmful forces on supporting teeth. It is most often discussed in **fixed partial dentures (FPDs)**, especially when a bridge spans teeth that move differently.

rigid connector: Definition, Uses, and Clinical Overview

A rigid connector is a solid connection that joins two or more parts of a dental restoration so they act as one unit. It is commonly used in fixed dental prostheses (bridges) to connect crowns to pontics (replacement teeth). It can also be used to splint multiple teeth or implant restorations together for stability. The main idea is simple: it reduces relative movement between connected units during biting and chewing.

connector: Definition, Uses, and Clinical Overview

A connector is a dental material or design element used to join parts of a restoration or device. In restorative dentistry, the term connector is often used for resin-based materials placed to link, seal, or adapt a restoration to tooth structure. It is commonly discussed in fillings, repairs, and bonded attachments where close adaptation matters. Exact meaning can vary by clinician and case, and by material and manufacturer.

splinted crowns: Definition, Uses, and Clinical Overview

splinted crowns are individual crowns that are connected together as one unit. They are used to restore and protect multiple teeth (or implants) while making them function as a linked group. They are commonly used in areas with heavy bite forces, complex tooth wear, or when teeth need shared support. They can be made from several crown materials, depending on the clinical goals and design.

unit crown: Definition, Uses, and Clinical Overview

A unit crown is a dental crown made to cover and protect a single tooth (one “unit”). It restores the tooth’s shape, strength, and appearance when a filling is not enough. A unit crown is commonly used after extensive decay, fractures, or root canal treatment. It may be cemented on a natural tooth or attached to an implant abutment, depending on the case.

crown-and-bridge: Definition, Uses, and Clinical Overview

crown-and-bridge refers to fixed dental restorations that cover damaged teeth (crowns) or replace missing teeth by connecting artificial teeth to supports (bridges). It is commonly used in restorative dentistry and prosthodontics to rebuild function and appearance. Crowns and bridges are typically fabricated outside the mouth and then cemented or bonded onto prepared teeth or implants. They are designed to withstand biting forces while matching the surrounding smile as closely as practical.

stock abutment: Definition, Uses, and Clinical Overview

A **stock abutment** is a prefabricated (ready-made) component used with a dental implant. It connects the implant fixture in the bone to the visible tooth replacement, such as a crown. It is commonly used when the implant position and gum shape allow a standard abutment form to fit. Compared with custom abutments, it offers fewer shape options but can simplify the restorative process.

custom abutment: Definition, Uses, and Clinical Overview

A custom abutment is a made-to-fit connector between a dental implant and the visible tooth replacement (the crown). It is designed for one specific implant position and one specific patient. It helps shape how the crown emerges from the gum and how it aligns with the bite. custom abutment components are commonly used in implant-supported single crowns and some multi-unit restorations.