| Popis: |
With the current trend toward complete oral rehabilitation involving the prepara tion of teeth for complete coronal cover age and cementation of the crowns, many pulps are irritated needlessly, often re sulting in devitalization. Some operators use local anesthesia when preparing a cavity. With this method there is a less ened circulation to carry off the intense heat that may be generated if no pre cautions are taken to avoid overheating the tooth. After the anesthetic effect has worn off, a freshly prepared tooth may become sensitive and remain so until a true pulpitis sets in. Instead of merely pausing occasionally to allow the tooth to cool, the dentist should use some type of water spray unit to overcome heat generated by frictional contact of the cutting instrument against the tooth surface. Such a unit may be used as an adjunct under all circum New York |
