Rehabilitation of weakened premolars with a new polyfiber post and adhesive materials.
Article
Dans Anglais
| IMSEAR
| ID: sea-169564
ABSTRACT
Background:
Polyfiber posts used inside the root canal can help to restore the fracture resistance of weakened premolars.Aim:
To assess the fracture resistance of endodontically treated premolars restored with different techniques, including the new polyfiber post (Spirapost). Materials andMethods:
One hundred superior premolars were distributed into 10 groups (n = 10) Sound teeth (G1‑positive control) and experimental (G2 to G10), which received MODP cavities and canal treatment. Groups were restored as follows G2 ‑ unrestored (negative control); G3 ‑ microhybrid resin (MR); G4 ‑ flowable resin (FR) + (MR); G5 ‑ glass fiber post (Reforpost) + MR; G6 ‑ Reforpost + FR + MR; G7 ‑ polyethylene fiber (Ribbond) + MR; G8 ‑ Ribbond + FR + MR; G9 ‑ polyfiber post (Spirapost) + MR and G10 ‑ Spirapost + FR + MR. After 24 h, the specimens were loaded until fracture. Data were analyzed by ANOVA and Tukey’s test (P < 0.05).Results:
Premolars restored with Spirapost (G9 and G10) provided the highest fracture strength (P < 0.05), similar to sound teeth (G1), regardless of the composite resin. Intermediate values were achieved by G3, G4, G5, G6, G7, and G8, which were similar (P > 0.05) and different from the others (P < 0.05). Inferior values were found in G2 (P < 0.05).Conclusion:
Fracture resistance of premolars with MODP cavities and endodontic access was recovered with the direct rehabilitation with Spirapost, regardless of the type of composite resin.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
langue:
Anglais
Année:
2015
Type:
Article
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