NAYYAR CORE

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Authors: Nayyar A, Walton RE, Leonard LA.Title: An amalgam coronal-radicular dowel and core technique for endodontically treated posterior teeth.Journal: J Prosthet DentDate: May 1980Citation: 43(5):511-5Category: Prosthodontic-Endodontic RelationshipsEvidence-based Ranking: 5Purpose/Objectives: To describe a coronal-radicular dowel and core

technique for endodontically treated posterior teeth. Discussion:

Diagnosis is the first consideration in selection of the appropriate

restorative treatment. The following criteria must be evaluated: 1) the

size of the remaining pulp chamber should be of sufficient width and

depth to provide for adequate bulk of amalgam and for retention and 2)

adequate dentin thickness in the area of the pulp chamber is required

for rigidity and strength. The amalgam dowel and core can be completed

at the end of the obturation appointment. All gutta percha should be

removed from the pulp chamber and to a depth of 2-4 mm into each canal.

If needed, a matrix band or copper band should be placed. Amalgam is

condensed into the canals with a periodontal probe or root canal

plugger and into the pulp chamber and remaining cavity by conventional

methods. If fast-setting amalgam is used, the tooth may be prepared for

a cast restoration immediately after hardening and a final impression

can be made at the same appointment. Summary: The described restorative

method is a viable method for restoring endodontically treated

posterior teeth and is a method that can reduce cost and time to the

patient and practitioner. Over a four year period of time,

approximately 400 restorations of this type had been placed at the

authorsÂ’ institution without any failures attributable to the amalgam

dowel and core reported.

ReviewerÂ’s Comments: This presents a good, simple method of

placing an amalgam dowel/core in posterior endodontically treated

teeth. Hope that helps :-)Princy

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Than you.Please what is likely to happen to interproximal composite? Over or under contouring?Best,HassanFrom: "drimtiyaz23" <drimtiyaz23@...>Sender: Date: Sun, 02 Oct 2011 18:22:47 -0000< >Reply Subject: nayyar core hi guysInformation about Nayyar core: This file was uploaded by Dr Hurfish.... thanks to him.Dr ImtiyazAuthors: Nayyar A, Walton RE, Leonard LA.Title: An amalgam coronal-radicular dowel and core technique for endodontically treated posterior teeth.Journal: J Prosthet DentDate: May 1980Citation: 43(5):511-5Category: Prosthodontic-Endodontic Relationships Evidence-based Ranking: 5Purpose/Objectives: To describe a coronal-radicular dowel and core technique for endodontically treated posterior teeth. Discussion: Diagnosis is the first consideration in selection of the appropriaterestorative treatment. The following criteria must be evaluated: 1) The size of the remaining pulp chamber should be of sufficient width anddepth to provide for adequate bulk of amalgam and for retention and 2) adequate dentin thickness in the area of the pulp chamber is requiredfor rigidity and strength. The amalgam dowel and core can be completed at the end of the obturation appointment. All gutta percha should be removed from the pulp chamber and to a depth of 2-4 mm into each canal. If needed, a matrix band or copper band should be placed. Amalgam is condensed into the canals with a periodontal probe or root canal plugger and into the pulp chamber and remaining cavity by conventionalmethods. If fast-setting amalgam is used, the tooth may be prepared fora cast restoration immediately after hardening and a final impressioncan be made at the same appointment. Summary: The described restorative method is a viable method for restoring endodontically treated posterior teeth and is a method that can reduce cost and time to the patient and practitioner. Over a four year period of time, approximately 400 restorations of this type had been placed at the authors' institution without any failures attributable to the amalgam dowel and core reported. Reviewer's Comments: This presents a good, simple method ofplacing an amalgam dowel/core in posterior endodontically treated teeth.