PMID- 37173534
OWN - NLM
STAT- MEDLINE
DCOM- 20240110
LR  - 20240110
IS  - 1618-1255 (Electronic)
IS  - 1618-1247 (Linking)
VI  - 112
IP  - 1
DP  - 2024 Jan
TI  - Push-out bond strength and SEM fractographical analysis of hollow fibre posts 
      used with self-adhesive resin cement: a pilot study.
PG  - 158-168
LID - 10.1007/s10266-023-00820-1 [doi]
AB  - Detachment is the major cause of failure of endodontic fibre posts. Hollow posts 
      have been recently introduced to overcome such issue. The primary aim of this 
      pilot study was to compare the push-out bond strength of hollow posts and 
      traditional solid posts. Eight round-shaped single-canal premolars extracted for 
      periodontal reason were selected as sample and equally randomized into two 
      groups: (i) traditional solid fibre posts-TECH21xop and ii) hollow fibre 
      posts-TECHOLE. A dual-curing self-adhesive cement (new TECHCEM) was used for 
      posts placement. Six horizontal sections-two from each portion of the root 
      (coronal, middle and apical)-were obtained from each sample root, yielding a 
      total of 24 sections for each group. Push-out test was performed on the sections 
      and bond strength values were compared between groups and within each group. 
      Scanning electron microscope (SEM) fractographical analysis was conducted on each 
      section. Additional SEM and EDX analyses were performed on new samples of both 
      posts, to assess fibres density and distribution, and the chemical composition of 
      the fibres and the matrix. Hollow posts showed a significantly higher push-out 
      bond strength (6.36 +/- 1.22 MPa) than solid posts (3.64 +/- 1.62 MPa). Among the 
      three root portions of the same group, there was no significant difference in 
      bond strength. In both groups, the most frequent type of fracture was a mixed 
      adhesive failure with the cement covering 0 to 50% of the post perimeter. Hollow 
      post fibres appear more similar in size and have a more homogeneous distribution, 
      compared to solid posts. The two post types also have different chemical 
      compositions.
CI  - (c) 2023. The Author(s), under exclusive licence to The Society of The Nippon 
      Dental University.
FAU - Generali, Luigi
AU  - Generali L
AUID- ORCID: 0000-0003-3764-7046
AD  - Department of Surgery, Medicine, Dentistry and Morphological Sciences with 
      Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), 
      University of Modena and Reggio Emilia, Largo del Pozzo, 71, 41124, Modena, 
      Italy. luigi.generali@unimore.it.
FAU - Veneri, Federica
AU  - Veneri F
AD  - Department of Surgery, Medicine, Dentistry and Morphological Sciences with 
      Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), 
      University of Modena and Reggio Emilia, Largo del Pozzo, 71, 41124, Modena, 
      Italy.
AD  - PhD Program in Clinical and Experimental Medicine, Department of Biomedical, 
      Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, 
      Italy.
FAU - Forabosco, Eleonora
AU  - Forabosco E
AD  - Department of Surgery, Medicine, Dentistry and Morphological Sciences with 
      Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), 
      University of Modena and Reggio Emilia, Largo del Pozzo, 71, 41124, Modena, 
      Italy.
AD  - PhD Program in Clinical and Experimental Medicine, Department of Biomedical, 
      Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, 
      Italy.
FAU - Cavani, Francesco
AU  - Cavani F
AD  - Department of Biomedical, Metabolic and Neural Sciences, University of Modena and 
      Reggio Emilia, Modena, Italy.
FAU - Piergianni, Veronica
AU  - Piergianni V
AD  - DDS, Private practice, Modena, Italy.
FAU - Sassatelli, Paolo
AU  - Sassatelli P
AD  - Product Engineer, Beckett Thermal Solution, Formigine, Italy.
FAU - Checchi, Vittorio
AU  - Checchi V
AD  - Department of Surgery, Medicine, Dentistry and Morphological Sciences with 
      Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO), 
      University of Modena and Reggio Emilia, Largo del Pozzo, 71, 41124, Modena, 
      Italy.
FAU - Pedulla, Eugenio
AU  - Pedulla E
AD  - Department of General Surgery and Medical-Surgical Specialties, University of 
      Catania, Catania, Italy.
LA  - eng
PT  - Journal Article
DEP - 20230512
PL  - Japan
TA  - Odontology
JT  - Odontology
JID - 101134822
RN  - 131257-02-8 (Adhesive cement)
RN  - 0 (Resin Cements)
SB  - IM
MH  - Resin Cements/chemistry
MH  - *Dental Bonding
MH  - Pilot Projects
MH  - *Post and Core Technique
MH  - Materials Testing
MH  - Dental Stress Analysis
MH  - Dentin
MH  - Glass
OTO - NOTNLM
OT  - Fibre hollow posts
OT  - Fibre posts
OT  - Fractographical analysis
OT  - Push-out bond strength
OT  - Self-adhesive cement
EDAT- 2023/05/13 15:13
MHDA- 2024/01/10 06:41
CRDT- 2023/05/12 23:26
PHST- 2022/11/23 00:00 [received]
PHST- 2023/05/05 00:00 [accepted]
PHST- 2024/01/10 06:41 [medline]
PHST- 2023/05/13 15:13 [pubmed]
PHST- 2023/05/12 23:26 [entrez]
AID - 10.1007/s10266-023-00820-1 [pii]
AID - 10.1007/s10266-023-00820-1 [doi]
PST - ppublish
SO  - Odontology. 2024 Jan;112(1):158-168. doi: 10.1007/s10266-023-00820-1. Epub 2023 
      May 12.