fissure
41fissure sealant — (in dentistry) a material that is bonded to the enamel surface of teeth to seal the fissures, in order to prevent dental caries. Composite resins, unfilled resins, and glass ionomer cements have been used as fissure sealants. * * * see pit and… …
42fissure of Rolando — noun a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes • Syn: ↑Rolando s fissure, ↑central sulcus, ↑sulcus centralis • Hypernyms: ↑sulcus • Part Holonyms: ↑cerebru …
43Fissure (matériau) — La fissure est un « défaut » ou une discontinuité brutale apparue ou apparaissant dans un matériau sous l effet de contraintes internes ou externes, où la matière est séparée sur une certaine surface. Tant que les forces de contraintes… …
44fissure of Sylvius — /sil vee euhs/. See lateral fissure. [named after Franciscus Sylvius (Latinization of Franz de la Boë, d.1672), German anatomist] * * * …
45Fissure orbitaire supérieure — Article principal : Os sphénoïde. La fissure orbitaire supérieure est un canal situé entre la petite et la grande aile de l os sphénoïde. Ce canal est emprunté par plusieurs nerfs notamment le nerf oculomoteur, le nerf trochléaire et le nerf …
46fissure cavity — a carious lesion beginning in a fissure of a tooth. See pit caries, under caries …
47fissure of palpebrae — palpebral fissure rima palpebrarum …
48fissure cave — A narrow vertical cave or cave passage along a fissure. Fissures widen out to become wells or vertical shafts [10]. See also vertical shaft …
49fissure vent — An opening in earth’s surface of a volcanic conduit in the form of a crack or fissure rather than a localized crater; a roughly linear crack or area along which lava, generally mafic and of low viscosity, wells up to the surface, usually… …
50fissure sealant — (in dentistry) a material that is bonded to the enamel surface of teeth to seal the fissures, in order to prevent dental caries. Composite resins, unfilled resins, and glass ionomer cements have been used as fissure sealants …