Variations in Root Canals


VARIATIONS IN ROOTS AND ROOT CANALS

X-rays below show infections in bone coming from infected nerves and variations in root canal anatomy after root canal treatment.
Chronic infections in bone show up as dark on X-rays areas around the end of the roots signifying bone destruction.

Once treated the bone starts to heal and the bone pattern on X-rays begins to return to normal.
It may take at least eight to twelve months before healing changes can be seen on an X-ray.

Root filled teeth need to be monitored with follow up X-rays after one year and before placing a crown on the tooth.

Dark area under centre canine shows infection. Bone returns to norma under root filled tooth at the left of the X-ray

1) Dark area under centre canine shows infection. 2) Bone shows normal pattern on healing after nerve treatment completed on tooth left side of the X-ray

Treatment consists of

1. Mechanical cleaning out of the nerve chamber throughout the entire length of the tooth.
2. Locating all nerve canals and shaping the canals to prepare for the filling material.
3. Sterilisation/disinfection of the infected root canal with medicaments.
4. Filling the root canals close to the end of the root.

The number of roots and canals vary, usually from one to four, even within the one root depending on the position of the tooth in the arch.

Root therapies also vary in difficulty depending on root curvatures, blockages and access. Some nerve treatments require only two half hour visits, others four or more one hour visits. A minimum of three X-rays is required .

Curved single canal in single root

Curved single canal in single root

Premolar with two roots and two seperate canals

Premolar with two roots and two seperate canals

Molar with two roots and three canals

Molar with two roots and three canals

 Molar with one root and two canals fused near root end

Molar with one root and two canals fused near root end

Molar with single root and two canals fusing towards root end

Molar with single root and two canals fusing towards root end

Molar with two roots and four canals

Molar with two roots and four canals

Darkish area under front root of middle tooth is a healing infection in bone

Darkish area under front root of middle tooth is a healing infection in bone

Molar with three roots and three canals

Molar with three roots and three canals

Premolar with one root and one canal

1) Premolar with one root and one canal. 2) Whitish flecks in darker area in bone at mid root level is cement sealing a lateral canal.