Obturation

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obturation

[‚äb·tə′rā·shən]

(medicine)

The closing of an opening or passage.

A form of intestinal obstruction in which the lumen is occupied by its normal contents or by foreign bodies.

(ordnance)

Sealing of the breech of a gun to prevent escape of propellant gases in firing.

Obturation

the sealing of the barrel when firing a firearm in order to prevent the forward or backward escape of powder gases.

In guns that load by cartridge, obturation is achieved by the use of a brass cartridge case that expands when the gun is fired and ensures that the barrel is sealed on the breech side. In artillery guns that are loaded separately, obturation is achieved by using special devices in the breech called obturators. Escape of the gases in the direction of shell movement is prevented by the rotary bands of shells and casings of bullets; in mortars it is prevented by annular grooves on the cylindrical part of the shell.

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References in periodicals archive ?

Intradentinal antimicrobial action and filling quality promoted by ultrasonic agitation of epoxy resin-based sealer in endodontic obturation. J Appl Oral Sci 2017; 25(6):641-9.

The Effect of Chlorhexidine and Dimethyl Sulfoxide on Long-Term Microleakage of Two Different Sealers in Root Canals

Patients in Group-II were recalled after 5 days for obturation. Patients were recalled to record the pain score using VAS to measure post-obturation pain within 48 hours after the procedure.

Comparison of frequency of post-obturation pain of single versus multiple visit root canal treatment of necrotic teeth with infected root canals. A Randomized Controlled Trial

Clinical evaluation of root canal obturation methods in primary teeth.

Evaluation of Different Root Canal Filling Methods in Primary Teeth/Sut Dislerinde Farkli Kok Kanal Dolum Yontemlerinin Degerlendirilmesi

The same procedure was performed in teeth with inadequatelly filled canals, which were also carriers of fixed prosthetic work or there was no possibility for revision of previous obturation. A classic surgical technique for apicoectomy was performed.

CLINICAL AND RADIOGRAPHIC OUTCOMES OF SURGICAL MANAGEMENT OF CHRONIC PERIAPICAL LESIONS IN MULTIROOTED TEETH/KLINICKI I RADIOGRAFSKI ISHOD HIRURSKOG LECENJA HRONICNIH PERIAPIKALNIH PROMENA VISEKORENIH ZUBA

The bond strength of ActiV GP was higher compared to methacrylate-based obturation systems (EndoREZ and Resilon).

Push-Out Bond Strength of Experimental Apatite Calcium Phosphate Based Coated Gutta-Percha

Lee, "Dynamic intratubular biomineralization following root canal obturation with pozzolan-based mineral trioxide aggregate sealer cement," Scanning, vol.

Different Setting Conditions Affect Surface Characteristics and Microhardness of Calcium Silicate-Based Sealers

Among filling techniques, however, the adopted single-cone obturation is considered relatively safe regarding the development of lateral condensation forces [30].

Unexpected Complication Ten Years after Initial Treatment: Long-Term Report and Fate of a Maxillary Premolar Rehabilitation

For any given obturation force, dynamic friction between bullet and bore depends on the materials involved.

Bullet vs barrel: the bullet you choose to reload is a unique component and affects the load's safety and performance

Three teeth were used for the negative control, which were prepared but did not receive any type of obturation neither were inoculated with the microorganism; three teeth were also used for the positive control, and these were prepared but did not receive any type of obturation and were inoculated with the microorganism.

Microfiltracion coronal de Enterococcus faecalis en tres tipos de obturacion endodontica (compactacion vertical caliente, compactacion lateral y cono unico)

Gutta-percha is a filling material used commonly for the obturation of the root canals.

EFFICACY OF PROTAPER NEXT AND PROTAPER UNIVERSAL RETREATMENT SYSTEMS IN REMOVING GUTTA-PERCHA IN CURVED ROOT CANALS DURING ROOT CANAL RETREATMENT/Kok Kanal Tedavisi Yenilenmesi Sirasinda ProTaper Next ve ProTaper Universal Retreatment Sistemlerinin Guta-Perka Uzaklastirma Etkinligi

Group 2 (continuous wave condensation technique using an Elements Obturation Unit (group EOU)).

Evaluation of the Sealing Ability of Three Obturation Techniques Using a Glucose Leakage Test

The treatment suggested for the patient was marsupialization combined with obturation of the defect.

ROLE OF OBTURATOR IN CONSERVATIVE MANAGEMENT OF KERATOCYSTIC ODONTOGENIC TUMOR WITH MARSUPIALIZATION IN A YOUNG ADULT