An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique.

An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Research Abstract Details 

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An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Abstract Text:

The aims of this study were to compare coronal microleakage around cast and prefabricated post and cores and to examine the coronal seal achieved by temporary post crowns. Thirty extracted, single-rooted, human teeth were prepared chemomechanically, root filled with gutta-percha and sealer and prepared for a standard post. Three groups, each of 10 teeth, were restored with either: (i) cast post and cores cemented with zinc phosphate cement; (ii) prefabricated posts and composite cores cemented with a composite luting cement; or (iii) temporary post crowns cemented with a temporary zinc oxide-eugenol cement. The teeth were thermocycled and placed in Indian ink for 1 week, then demineralized and rendered transparent. Linear coronal dye penetration around the posts was measured and recorded. Results indicated that while cast post and cores and prefabricated posts and composite cores produced a good seal, leakage was significantly greater with temporary post crowns (P < 0.05). It is concluded that to prevent re-infection of the root canal system, it may be preferable to restore the tooth immediately with a prefabricated post and composite system rather than place a temporary post crown and subsequently a cast post and core.

An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Publishing Authors By Initials

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An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: International endodontic journal

VOLUME: 30

Page Numbers: 361-8

Journal Abbreviation: Int Endod J

ISSN: 0143-2885

DAY: 7

MONTH: Nov

YEAR: 1997

An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Information

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LANGUAGE: eng

NlmUniqueID: 8004996

An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Keywords Mesh Terms:

KEYWORDS: Tooth, Nonvital

MESH TERMS: therapy

Chemical & Substance for Abstract: An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique. Information

Substance Name: Gutta-Percha

Registry Number: 9000-32-2

Grant and Affiliation Information for An in vitro study of coronal microleakage in root-canal-treated teeth restored by the post and core technique.

AFFILIATION: Division of Restorative Dentistry, Leeds Dental Institute, UK.

Country: ENGLAND

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MEDLINETA: Int Endod J

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