root canal

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root canal

the passage in the root of a tooth through which its nerves and blood vessels enter the pulp cavity

root canal

[′rüt kə‚nal]
(anatomy)
The cavity within the root of a tooth, occupied by pulp, nerves, and vessels.
References in periodicals archive ?
Radiographic technical quality of root canal fillings performed by undergraduate 4th and 5th year dental students at the College of Dentistry, Aljouf University was evaluated in the current study.
The quality of root canal filling was scored on the following modified three-point scale: (1) a good score for homogenous filling obturating the entire prepared root canal, well adapted to the canal wall, with only a few minor areas of relative radiolucency (diameter: [less than or equal to] 0.25 mm; without porosity); (2) a satisfactory score for imperfect filling with irregularities of [less than or equal to] 1 mm, where the filling may be slightly shorter (diameter: [less than or equal to] 0.5 mm) than the working length (few porosities); and, (3) a bad score for inadequately filled canals with irregularities (diameter: > 1 mm), where the filling diameter may be > 0.5 mm shorter than the working length (several porosities).
Histological studies have shown that the presence of root canal filling materials in the periapical tissues may result in a persistent inflammatory condition [16].
Several variables affect the technical quality of root fillings, such as the length of the filling material in relation to the radiographic apex, the density of the root filling material (presence of voids) and the taper of the canal.8 These characteristics of root canal filling should be evaluated on radiographs to judge the technical quality.
(28) compared fluid filtration and dye penetration methods and found fluid transport was a more sensitive method for detecting voids along the root canal filling than dye penetration.
The radiographic technical quality of the root canal fillings was independently evaluated by two expert endodontists, and the result was recorded when there was an agreement between the two examiners.
Radiographic technical quality of root canal fillings performed by house surgeons in the Islamic medical and Dental College: A pilot study.
The lateral condensation technique, due to its ease-of-use, safety, and promotion of a radiographically compact filling, is still the most commonly used technique for root canal filling. (1) Nevertheless, the capacity of this technique for totally sealing the root canal system is questionable.
Fluid transport model and bacterial penetration along root canal fillings. Int Endodon J 1993; 26: 203-08.
It dissolves organic and inorganic remnants in the root canal and also removes the smear layer, (5-7) but there are few studies related to its effect on the sealing ability of different root canal fillings. It is well known that when the surface area of dentin exposed to this sealer is increased, the adhering and penetrating capacity of root canal sealers is improved and a better seal is expected.
Periapical status, quality of root canal fillings and estimated endodontic treat- ment needs in an urban German population.
The goal of this procedure is to restore the periapical tissues to healthy condition, which demands a thorough root canal filling removal reaching the working length again, chemo-mechanical disinfection and reobturation of root canals.