Journal article
Effect of DTPMP pretreatment on intraradicular dentin push-out bond strength and etching pattern of self-adhesive and conventional dual cure resin cement
International journal of adhesion and adhesives, Vol.138, 103931
03/2025
DOI: 10.1016/j.ijadhadh.2024.103931
Abstract
To evaluate the push-out bond strength (PBS) and conditioning effects of diethylenetriamine-penta-phosphonic acid (DTPMP), as a pretreatment of intra-radicular dentin compared to ethylenediamine tetra-acetic acid (EDTA) and orthoorthophosphoric acid 37 % (H3PO4) for cementing posts with dual cure resin cement.
The resin cements employed were dual-cure resin cement RelyX ARC with previous Single Bond Universal adhesive (ARC/SBU) application, and self-adhesive resin cement RelyX U200. A fifty-four bovine incisor roots were prepared for GFP cementation and randomly divided into six groups according to the type of cement and dentin pre-treatment: 1) U200: no previous treatment; 2) EDTA-U200: pretreatment with 15 % EDTA for 3 min; 3) DTPMP-U200: pretreatmentwith 15 % DTPMP for 3 min; 4) H3PO4-ARC: 37 % orthophosphoric acid for 15s + SBU; 5) EDTA-ARC: 15 % EDTA for 3 min + SBU; and 6) DTPMP-ARC: 15 % DTPMP for 3 min + SBU. The roots (n = 6 per group) were sectioned into disc specimens of 1 mm (thickness) and subjected to PBS at 24h and after aging by Clostridium histolyticum. Additionally, root treated with each pre-treatment, without the application of adhesive or cement, disc specimens were subjected to scanning electron microscopy (SEM) to analyze the dentin surface conditioning pattern (n = 3). Data were analyzed by two-way ANOVA and Tukey's test (p < 0.05).
In PBS, DTPMP-U200 and DTPMP-ARC (p < 0.001) presented the highest bond strength after aging. The DTPMP etching pattern showed intense etching with mineral maintenance, while EDTA and H3PO4 showed greater exposure of collagen fibrils.
Treatment using 15 % DTPMP as an intraradicular dentin conditioner before luting glass-fiber posts provides bonding stability and potential for therapeutic remineralization.
Details
- Title: Subtitle
- Effect of DTPMP pretreatment on intraradicular dentin push-out bond strength and etching pattern of self-adhesive and conventional dual cure resin cement
- Creators
- Diego Neves Pinto - Paulo Picanço School of DentistryTainah Oliveira Rifane - Paulo Picanço School of DentistryManuela Timbó Farrapo - Universidad Cardenal Herrera CEUKetelyn Kerty Moreira de Oliveira - Universidad Cardenal Herrera CEUSamara Tabata Medeiros - Universidad Cardenal Herrera CEUVitaliano Gomes de Araújo-Neto - Universidade Estadual de Campinas (UNICAMP)Salvatore Sauro - Universidad Cardenal Herrera CEUDiego Martins de Paula - Paulo Picanço School of DentistryVictor Pinheiro Feitosa - Department of Operative Dentistry, University of Iowa, College of Dentistry, Iowa City, IA, USA
- Resource Type
- Journal article
- Publication Details
- International journal of adhesion and adhesives, Vol.138, 103931
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.ijadhadh.2024.103931
- ISSN
- 0143-7496
- eISSN
- 1879-0127
- Language
- English
- Date published
- 03/2025
- Academic Unit
- Operative Dentistry
- Record Identifier
- 9984770885702771
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