Indirect Restorations by David Bartlett / David Ricketts

Author:David Bartlett / David Ricketts
Language: deu
Format: epub
Publisher: Quintessence Publishing Co. Ltd.

Fig 5-1a The shape of the bur can assist the preparation of an anterior tooth.

Fig 5-1b The taper of these preparations approaches parallel maximising the retention for the crowns.

Preparations may cause death of the pulp – one of the most common complications following tooth reduction. The impact of preparation can be reduced by using copious water spray to dissipate the heat, but even then some pulps die as a result of the effects of excess heat on vital tissues. This most commonly occurs in teeth which are already compromised. Elective root treatment results in even more tooth tissue reduction and tends to limit the longevity of the tooth. A balance needs to be achieved between methods used to maintain pulpal vitality and the implications of having to root treat a tooth soon after crowning.

For most teeth, the amount of tooth tissue that needs to be removed should be sufficient to provide adequate space for the restoration whilst leaving as much tooth tissue as possible to support the restoration and avoid damaging the pulp-dentine complex. Cutting should be intermittent and undertaken with copious water spray.

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