von Stein-Lausnitz, Manja and Bruhnke, M. and Rosentritt, M. and Sterzenbach, G. and Bitter, K. and Frankenberger, R. and Naumann, M. (2019) Direct restoration of endodontically treated maxillary central incisors: post or no post at all? CLINICAL ORAL INVESTIGATIONS, 23 (1). pp. 381-389. ISSN 1432-6981, 1436-3771
Full text not available from this repository. (Request a copy)Abstract
ObjectivesThe aim of this ex-vivo study was to evaluate the impact of cavity size and glass-fiber post (GFP) placement on the load capability of endodontically treated maxillary incisors directly restored with resin composite.Materials and methodsNinety-six extracted human maxillary central incisors were endodontically treated and distributed to four groups (n=24): access cavity (A), access cavity and uni-proximal class III cavity (U), access cavity and bi-proximal class III cavity (B), and decoronated tooth (D). Specimens were restored with resin composite, and 12 specimen of each group received an adhesively placed glass-fiber post (P). Prior to linear loading, specimens were exposed to thermo-mechanical loading (TCML). Statistical analysis was performed using log-rank test after TCML, Kruskall-Wallis and Mann-Whitney U test to compare load capabilities (F-max).ResultsSignificantly more failures occurred in group D for specimens without GFP during TCML (p=0.001). F-max (mean (SD) in N was (A) 513 (124), (AP) 554 (201), (U) 438 (171), (UP) 537 (232) (B) 483 (219), (BP) 536 (281), D 143 (181), and DP 500 (331), and differed significantly among groups (p=0.003). Pair-wise comparison revealed lower F-max values for group D compared to all other groups (p<0.034) except group DP.ConclusionsEndodontically treated maxillary central incisors with cavity sizes up to bi-proximal class III may be successfully directly restored with resin composite. Post placement shows no additional effect except for decoronated endodontically treated incisors.Clinical relevanceEndodontically treated incisors with access cavities to class III cavities can be successfully restored with resin composite. Post placement for decoronated ETT is recommended.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FIBER-REINFORCED COMPOSITE; FINITE-ELEMENT-ANALYSIS; ALL-CERAMIC CROWNS; FRACTURE-RESISTANCE; IN-VITRO; ANTERIOR TEETH; LOAD CAPABILITY; FAILURE PATTERN; SURVIVAL RATE; PILOT TRIAL; Direct restoration; Endodontic post; Glass-fiber post; Postendodontic treatment; Resin composite |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnärztliche Prothetik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Apr 2020 07:28 |
| Last Modified: | 22 Apr 2020 07:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27906 |
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