Biocompatibility of a HA/?-TCP/C Scaffold as a Pulp-Capping Agent for Vital Pulp Treatment: An In Vivo Study in Rat Molars

Julia Guerrero-Gironés, Antonia Alcaina-Lorente, Clara Ortiz-Ruiz, Eduardo Ortiz-Ruiz, María P. Pecci-Lloret, Antonio José Ortiz-Ruiz, Francisco Javier Rodríguez-Lozano and Miguel R. Pecci-Lloret
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Julia Guerrero-Gironés: Special Care and Gerodontology Unit, IMIB-Arrixaca, Campus Regional de Excelencia Internacional “Campus Mare Nostrum”, University of Murcia, 30008 Murcia, Spain
Antonia Alcaina-Lorente: Department of Integral Pediatric Dentistry, University of Murcia, 30008 Murcia, Spain
Clara Ortiz-Ruiz: Department of Physiology, School of Medicine and Biosanitary Research Murcian Institute (IMIB), University of Murcia, 30120 Murcia, Spain
Eduardo Ortiz-Ruiz: Department of Histopathology, University Hospital Virgen de la Arrixaca, 30120 Murcia, Spain
María P. Pecci-Lloret: Special Care and Gerodontology Unit, IMIB-Arrixaca, Campus Regional de Excelencia Internacional “Campus Mare Nostrum”, University of Murcia, 30008 Murcia, Spain
Antonio José Ortiz-Ruiz: Department of Integral Pediatric Dentistry, University of Murcia, 30008 Murcia, Spain
Francisco Javier Rodríguez-Lozano: Special Care and Gerodontology Unit, IMIB-Arrixaca, Campus Regional de Excelencia Internacional “Campus Mare Nostrum”, University of Murcia, 30008 Murcia, Spain
Miguel R. Pecci-Lloret: Special Care and Gerodontology Unit, IMIB-Arrixaca, Campus Regional de Excelencia Internacional “Campus Mare Nostrum”, University of Murcia, 30008 Murcia, Spain

IJERPH, 2021, vol. 18, issue 8, 1-9

Abstract: Bioceramic materials possess desirable biological properties, highlighting their non-reactivity and osteoconductivity. Their use has been extended in vital pulp treatment. The purpose of this study was to evaluate and compare the effects of beta-tricalcium phosphate (?-TCP), hydroxyapatite (HA), and collagen (C) scaffold with mineral trioxide aggregate (MTA) on the vital pulp of rat molars. Thirty-two molars of Sprague–Dawley rats underwent direct pulp capping with ?-TCP/HA/C (n = 16) and MTA (n = 16). After 30 days, the following parameters were evaluated in the tested samples: the degree of pulp inflammation and pulp vitality, the presence of reparative dentin, the homogeneity of the odontoblastic layer, and the presence of pulp fibrosis. No statistically significant differences were observed between HA/?-TCP/C and MTA in terms of the degree of inflammation ( p = 0.124). Significant differences were found in reparative dentin formation between the treatment groups ( p = 0.0005). Dentin bridge formation was observed in the MTA-treated group. The local action of HA/?-TCP/C is similar to that of MTA when used as an agent for pulp vital treatment in terms of absence of inflammation and maintenance of pulp vitality, although there are significant differences between both materials regarding the formation of dentin bridges.

Keywords: beta-tricalcium phosphate; hydroxyapatite; mineral trioxide aggregate; vital pulp therapy; scaffolds (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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