The Effects of Various Restorative Techniques on the Fracture Resistance of Pulpotomized Permanent Premolars

Autor: Yasamin Ghahramani, Fereshteh Shafiei, Zahra Jowkar, Sepideh Kazemian
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Dentistry, Vol 2021 (2021)
Druh dokumentu: article
ISSN: 1687-8728
1687-8736
DOI: 10.1155/2021/5590911
Popis: Aim. This study aimed to evaluate the effects of various restorative techniques on the fracture resistance of pulpotomized premolars with mesioocclusodistal (MOD) cavities treated with mineral trioxide aggregate (MTA) or calcium enriched mixture (CEM) cement. Materials and Methods. One hundred and eight sound extracted maxillary premolars were randomly assigned to nine experimental groups (n = 12). The teeth in group 1 did not receive any preparation. Class II MOD cavities were prepared in the other experimental groups. In groups 2, 4, 6, and 8, tooth-colored MTA was used for pulpotomy. In groups 3, 5, 7, and 9, CEM cement was used for pulpotomy. Groups 2 and 3 were left unrestored. Groups 4 and 5 were restored with amalgam. Groups 6 and 7 were restored with a conventional composite resin, and groups 8 and 9 were restored with bulk-fill giomers. Fracture resistance was measured, the fracture pattern of each specimen was assessed, and the results were statistically analyzed. Results. The fracture resistance of group 1 was significantly higher than those of the other groups (p 0.05). No statistically significant differences were found between the groups restored with amalgam, conventional composite resin, and bulk-fill giomer (groups 4, 5, 6, 7, 8, and 9) (p values
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