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REVIEW ARTICLE
Year : 2014  |  Volume : 4  |  Issue : 1  |  Page : 33-40

Coronal disassembly systems and techniques: An overview


Department of Prosthodontics, Government Dental College, Thiruvananthapuram, Kerala, India

Correspondence Address:
Kavitha Janardanan
Department of Prosthodontics, Government Dental College, Thiruvananthapuram, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5194.135009

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To create a general awareness among the clinicians regarding the appropriate choice of crown removal systems and techniques in various clinical situations. Fixed prosthodontic treatment is often faced with complications involving failure of restoration or of the abutment due to improper treatment planning. In such situations, further management can be accomplished either by removal and replacement or repair of the restoration. Removal of the crown and bridges for refabrication is extremely tedious and can lead to unpredictable consequences if proper technique is not used. An external device is always required for the removal of the failed restorations. Decrowning devices are a boon to dentistry to deal with such situations. Numerous decrowning devices are available commercially. This review describes and demonstrates the various available devices based on the mode of action. Literature search was carried out using PubMed and Google Scholar from 1970's to till date. Any decrowning device will be successful only if used appropriately. Hence, this literature attempts to suggest the possible application of each system based on clinical situations. A few modified techniques have also been discussed in this article for ease of the clinician. Clinical Relevance to Interdisciplinary Dentistry
  • The field of fixed prosthodontics warrants the use of coronal disassembly systems in situations such as loosened retainer of a bridge, fractured facing, unesthetic patient appeal, loosened abutment of an implant, etc.
  • Removal of a crown or bridge is important for conservative retreatment in conditions such as secondary caries underneath a cemented crown or recurring periapical infection of a root canal treated tooth restored with a crown.
  • Special care should be exercised while removing fixed restorations from a periodontally compromised abutment.
  • Safe removal of crowns is also important in the field of implant dentistry.


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