Bridge

A set of one or more false teeth supported by a metal framework, used to replace one or more missing teeth. Bridges may be fixed or removable. A fixed bridge (a partial denture) is a prosthetic replacement of one or more missing teeth; it is cemented (or otherwise attached) to the neighboring teeth or may be implanted in the space. A removable bridge (partial denture) is a prosthetic replacement of one or more missing teeth on a framework that can be removed by the wearer.

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1. The upper part of the ridge of the nose formed by the nasal bones. 2. One of the threads of protoplasm that appear to pass from one cell to another. 3. SYN: fixed partial denture.

- arteriolovenular b. the largest capillary connecting arteriole to venule.

- cantilever b. a fixed partial b. denture in which the pontic is retained only on one side by an abutment tooth. SYN: extension b..

- caudolenticular gray bridges [TA] strands of neuron cell bodies that span the internal capsule, primarily its anterior limb, between the caudate nucleus and the putamen. SYN: pontes grisei caudolenticulares [TA], transcapsular gray bridges.

- cell bridges SYN: intercellular bridges.

- cystine b. SYN: disulfide b..

- cytoplasmic bridges SYN: intercellular bridges.

- dentin b. a deposit of reparative dentin or other calcific substances which forms across and reseals exposed tooth pulp tissue.

- disulfide b. 1. a disulfide linkage between two cysteinyl residues in a poly- or oligopeptide or in a protein; 2. any disulfide linkage between any thiol-containing moieties of a larger molecule. SYN: cystine b..

- extension b. SYN: cantilever b..

- fixed b. SYN: fixed partial denture.

- Gaskell b. SYN: atrioventricular bundle.

- intercellular bridges slender cytoplasmic strands connecting adjacent cells; in histological sections of the epidermis and other stratified squamous epithelia, the bridges are processes attached by a desmosome and are shrinkage artifacts of fixation; true bridges with cytoplasmic confluence exist between incompletely divided germ cells. SYN: cell bridges, cytoplasmic bridges.

- myocardial b. a b. of cardiac muscle fibers extending over the epicardial aspect of a coronary artery; this finding, in cases of sudden unexpected death, has led to speculation that cardiac contraction during exertion could constrict the coronary artery.

- removable b. SYN: removable partial denture.

- salt b. SYN: electrostatic bond.

- transcapsular gray bridges caudolenticular gray bridges.

- Wheatstone b. an apparatus for measuring electrical resistance; four resistors are connected to form the four sides or “arms” of a square; a voltage is applied to one diagonal pair of connections, while the voltage between the other diagonal pair is measured, e.g., by a galvanometer; the b. is “balanced” when the measured voltage is zero; then, the ratios of the two pairs of adjoining resistances must be identical.

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bridge 'brij n

1 a) the upper bony part of the nose

b) the curved part of a pair of glasses that rests upon this part of the nose

2 a) PONS

b) a strand of protoplasm extending between two cells

c) a partial denture held in place by anchorage to adjacent teeth

d) a connection (as an atom or group of atoms) that joins two different parts of a molecule (as opposite sides of a ring)

e) an area of physical continuity between two chromatids persisting during the later phases of mitosis and constituting a possible source of somatic genetic change

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n.

(in dentistry) a fixed replacement for missing teeth. The artificial tooth is attached to one or more natural teeth, usually by a crown. Bridges may also be fitted on dental implant. The supporting teeth (or implants) are referred to as abutments, and the artificial teeth that fit over them are referred to as retainers. The replacements of missing teeth are known as pontics. Adhesive bridges are attached to one or more adjacent teeth by a metal plate that adheres to the enamel on the tooth surface prepared by the acid-etch technique; these bridges require minimal tooth preparation compared with conventional types of bridges.

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(brij) 1. a structure that connects two distant points, including parts of an organ. Called also pons. 2. fixed partial denture. 3. tarsal coalition. 4. intercellular b.