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An obturating ring is a ring of relatively soft material designed to obturate under pressure to form a seal. Obturating rings are often found in artillery...

otherwise access into the barrel is from the front via the muzzle, which is obturated by the projectile. In the later caplock firearms, the ignition sparks...

resection is carried out, removing 3mm apically. The canal(s) is then obturated, and the flap is sutured. There are a number of root-end filling materials...

shooter. Although there were early paper-cartridge breechloaders, the self-obturating nature of metallic cartridges (along with their waterproof nature) led...

bore axis (i.e. "in battery"). While in the chamber, the cartridge case obturates all other directions except the bore to the front, reinforced by a breechblock...

failure due to both inadequate disinfection and the inability to properly obturate the root-canal space. Consequently, the biofilm should be removed with...

entire length of the root canal is not completely cleaned out and filled (obturated) with root canal filling material (usually gutta percha). On the other...

in German artillery because their sliding wedge breeches were hard to obturate with smokeless powder,) was less vulnerable and less volatile in composition...

Airguns generally use a slightly undersized projectile that is designed to obturate upon shooting so as to seal the bore, and engage the rifling;[citation...

solvents, drugs, heavy metals). Necrotic cells fall into the tubule lumen, obturating it, and determining acute kidney failure. Basement membrane is intact...

extract the cartridge case, tearing through the case rim, and leaving an obturated case behind. After the introduction of the M4 carbine, it was found that...

lead skirting. Its intended purpose was to expand under the pressure and obturate the barrel and increase muzzle velocity. The bullet could be quickly removed[citation...

and during root canal therapy. It is the predominant material used to obturate, or fill, the empty space inside the root of a tooth after it has undergone...

expand under the pressure of gunpowder deflagration causing the bullet to obturate, and grip the rifling grooves. This maximized muzzle velocity by creating...

inflamed pulp relieves the pain. The empty root canal system is then obturated with gutta-percha (rubber material that acts as a pressure/pain reliever)...

soon after the round leaves the gun tube. The propulsion system uses an obturating case base with a semi-combustible cartridge wall. It has a total weight...

result in very inconsistent accuracy, as the slug may be incapable of obturating to fill the oversized bore. The six most common shotgun gauges, in descending...

upon being fired, forcing the base to engage with the barrel grooves and obturating the bore more as the bullet travels through the barrel. Hollowing the...

can fit in a case and the diameter of the inside of the barrel or bore. Obturate: An ordnance word; to close (a hole or cavity) so as to prevent a flow...

were discontinued, the term came to distinguish between traditional, non-obturating guns with fabric propellant bags and separately loaded shells, and quick-firing...