Causes of Injury in Fixed Partial Denture Tooth Preparation

Causes of Injury in Fixed Partial Denture Tooth Preparation

Causes of Injury in Tooth Prep


Temperature

Considerable heat is generated by friction between a rotary instrument and the surface being prepared. Excessive pressure, higher rotational speeds, and the type, shape and condition of cutting instrument. Feather light touch and water spray should be used.

Chemical Action

The chemical action of some dental materials (bases, restorative resins, solvents and luting agents) can caused pulpal damage.

Bacterial Action

Pulpal damage under restorations has been attributed to bacteria that either were left behind or gained access to the dentin because of microleakage. Antimicrobial agent after tooth preparation and before cementation should be used.

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