Construct · 1 fields · 1 citations

ferrule: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
ferrule1 CONSTRUCTFerrule effectSORENSEN · 1990

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Restorative dentistry

A band of tooth that braces a crown

In restorative dentistry, the "ferrule effect" is the reinforcement a crown gains when its margin encircles a collar of sound tooth structure above the gum line, so the crown grips the tooth like a band and resists fracture under load. Sorensen and Engelman's 1990 Ferrule design and fracture resistance of endodontically treated teeth showed that an adequate ferrule markedly raises the fracture resistance of restored teeth. The referent is a bracing effect of remaining tooth structure, not an optical sleeve or a plumbing ring.[1]

Unit
Height of sound tooth collar encircled by the crown margin
Recovery means
Not applicable
Measured by
Evaluated by ferrule height and the fracture resistance of the restored tooth under load

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Nearby constructs

alignment6 fields · 12 citationsjingle · one name, six constructsaxis1 fields · 1 citationsanchor · a standalone constructband2 fields · 2 citationsjingle · one word, two constructs

References

  1. Sorensen, J. A., & Engelman, M. J. (1990). Ferrule design and fracture resistance of endodontically treated teeth. The Journal of Prosthetic Dentistry, 63(5), 529–536. https://doi.org/10.1016/0022-3913(90)90070-S

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