Ellis classification (Tooth fractures)

Ellis classification (Tooth fractures)

Ellis Class I Enamel fracture: This level of injury includes crown fractures that extend through the enamel only. These teeth are usually nontender and without visible color change but have rough edges. Ellis Class II Enamel and dentin fracture without pulp exposure: Injuries in this category are fractures that involve the enamel as well as the dentin layer. These teeth are typically tender to the touch and to air exposure. A yellow layer of dentin may be visible on examination. Ellis Class III Crown fracture with pulp exposure: These fractures involve the enamel, dentin, and pulp layers. These teeth are tender (similar to those in the Ellis II category) and have a visible area of pink, red, or even blood at the center of the tooth. Ellis Class IV Traumatized tooth that has become non-vital with or without loss of tooth structure. Ellis Class V Luxation: The effect on the tooth that tends to dislocate the tooth from the alveolus. Teeth loss due to trauma. Ellis Class VI Avulsion: The complete separation of a tooth from its alveolus by traumatic injury. Fracture of root with or without loss of crown structure. Ellis Class VII Displacement of a tooth without the fracture of crown or root. Ellis Class VIII Fracture of the crown en masse and its replacement. Ellis Class IX Fracture of deciduous teeth. ------------------------------------ This Article has been edited By :: World Of Dentistry :: TEAM For any questions and suggestions please don't be hesitate to feedback us. Yours, :: World Of Dentistry :: TEAM

The Ideal Teeth Access Cavity Preparations for RCT (Root Canal Treatment)

The correct access preparation for RCT is as follows:

Upper Teeth:

central Incisors : triangular

lateral Incisors: ovoid

canines: ovoid

first premolars: ovoid

second premolars: ovoid

first molars: triangle

second molars: triangle

Lower Teeth:

central Incisors: ovoid

lateral Incisors: ovoid

canines: ovoid

first premolars: ovoid

second premolars: ovoid

first molars: triangle or trapezoid

second molars: triangle or trapezoid

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This Article has been edited By :: World Of Dentistry :: TEAM

For any questions and suggestions please don't be hesitate to feedback us.

Yours,

:: World Of Dentistry :: TEAM