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Evaluation of the dislodgement resistance of bioceramic reparative cements placed in a retrograde cavity using a different technique
Gokturk, Hakan; Ozkocak, Ismail; Tan-Ipek, Seda; Demir, Osman.
  • Gokturk, Hakan; University of Bolu Abant Izzet Baysal. Faculty of Dentistry. Department of Endodontics. Bolu. TR
  • Ozkocak, Ismail; University of Bolu Abant Izzet Baysal. Faculty of Dentistry. Department of Endodontics. Bolu. TR
  • Tan-Ipek, Seda; University of Bolu Abant Izzet Baysal. Faculty of Dentistry. Department of Endodontics. Bolu. TR
  • Demir, Osman; Tokat Gaziosmanpasa University. Faculty of Medicine. Department of Biostatistics. Tokat. TR
Braz. j. oral sci ; 18: e191600, jan.-dez. 2019. ilus
Article in English | LILACS, BBO | ID: biblio-1095235
ABSTRACT

Aim:

Calcium silicate-based fillings have been widely used in surgical endodontic treatment because of hard-tissue conductive and inductive properties. The aim of present study is to investigate the bond strength of different calcium silicate-based fillings in retrograde cavities.

Methods:

Forty-four maxillary single rooted teeth were endodontically treated. The apical portions of the teeth were removed and root-end cavities were prepared using an ultrasonic tip. The roots were randomly divided into four experimental groups (n = 11) according to the material used; (1) MTA-FILLAPEX, (2) MTA Repair HP, (3) MTA-FILLAPEX+ MTA Repair HP, and (4) MTA Plus. Two horizontal cross sections (1±0.1 mm thick) from each specimen were resected from the apices. These sections were placed in a universal testing machine to evaluate the push-out bond strength force required for dislodgement of the root end filling was recorded. The failure type was also evaluated by using a stereomicroscope. The differences in bond strength were analyzed using the two-way analysis of variance (ANOVA).

Results:

MTA-FILLAPEX and MTA Plus displayed the lowest and highest dislocation resistance, respectively (P < 0.05). In the apical level, bond strength was significantly higher than the coronal level in all groups except for MTA-FILLAPEX. Mixed failure was prevalent in all groups, except for MTA-FILLAPEX, which showed purely cohesive failures.

Conclusions:

Investigated calcium silicate-based filling materials showed different bond strength to the root-end cavity. The bond strength was significantly decreased when the prior application of MTA-FILLAPEX before delivery of MTA Repair HP
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Retrograde Obturation / Root Canal Filling Materials / Calcarea Silicata / Calcium Compounds / Endodontics Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Turkey Institution/Affiliation country: Tokat Gaziosmanpasa University/TR / University of Bolu Abant Izzet Baysal/TR

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Full text: Available Index: LILACS (Americas) Main subject: Retrograde Obturation / Root Canal Filling Materials / Calcarea Silicata / Calcium Compounds / Endodontics Language: English Journal: Braz. j. oral sci Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Turkey Institution/Affiliation country: Tokat Gaziosmanpasa University/TR / University of Bolu Abant Izzet Baysal/TR