| Investigation of the effect of different prefabricated intracanal posts on fracture resistance of simulated immature teeth. | |
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MedLine Citation:
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PMID: 23374758 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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AIM: The aim of this study was to assess fracture resistances of simulated immature single-rooted teeth whose roots have been backfilled using 3 different post systems after a 4 mm apical mineral trioxide aggregate (MTA) placement. MATERIALS AND METHODS: Forty-eight maxillary anterior teeth were assigned into four groups. The lengths of each root were standardized by cutting off the coronal and apical portions to obtain 13 ± 1 mm samples and root canals were enlarged. The #6 Peeso reamers were allowed to protrude 1 mm beyond apex to simulate immature teeth. Apical 4 mm of each tooth was filled using MTA. The remaining portions were treated as follows: Group 1 (Control): AH Plus + Gutta-percha cold lateral compaction. Group 2: Glass fiber posts (FRC Postec Plus post) cemented using self-adhesive resin cement. Group 3: Quartz fiber posts (D.T. Light post) cemented using self-adhesive resin cement. Group 4: Zirconia posts (Cosmopost) were placed using self-adhesive resin cement. Specimens were embedded in self-curing acrylic. A compressive load was applied lingually at a crosshead speed of 1 mm/min at an angle of 45º until fracture in a universal testing machine. RESULTS: The mean fracture resistances were 823.17 ± 188.80, 1155.50 ± 190.37, 1208.00 ± 254.32, and 1153.25 ± 195.71 Newtons for Groups 1, 2, 3, and 4, respectively. All experimental groups had significantly higher fracture resistance compared with the control group (P < 0.01). No statistically significant difference was noted between the experimental groups (P > 0.05). CONCLUSIONS: All post systems exerted a similar reinforcing effect to a simulated immature tooth and may be preferred specifically in situations which require additional reinforcement. |
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Authors:
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Idil Dikbas; Jale Tanalp; Temel Koksal; Ayşe Yalnız; Tufan Güngör |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-2-4 |
Journal Detail:
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Title: Dental traumatology : official publication of International Association for Dental Traumatology Volume: - ISSN: 1600-9657 ISO Abbreviation: Dent Traumatol Publication Date: 2013 Feb |
Date Detail:
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Created Date: 2013-2-4 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101091305 Medline TA: Dent Traumatol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2013 John Wiley & Sons A/S. |
Affiliation:
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Faculty of Dentistry, Department of Prosthodontics, Yeditepe University, Istanbul, Turkey. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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