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Pecci Lloret, Miguel Ramón

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Pecci Lloret, Miguel Ramón
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Universidad de Murcia. Departamento de Dermatología, Estomatología,Radiología y Medicina Física
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    Dental treatments under general anesthesia on children with special health care needs enrolled in the spanish dental care program
    (MDPI, 2021-01-06) Pecci Lloret, Miguel Ramón; Guerrero Gironés, Julia; López-González, Belén; Rodríguez Lozano, Francisco Javier; Oñate-Cabrerizo, Daniel; Oñate Sánchez, Ricardo Elías; Pecci-Lloret, Miguel R.; Dermatología, Estomatología, Radiología y Medicina Física
    Abstract: The purpose is to analyze the medical characteristics of children with special health care needs (CSHCN) recommended for dental treatment under general anesthesia (GA), postoperative complications, and dental treatment outcomes under the regulation of the Spanish Dental Care Program (PADI). 111 clinical records were selected. The study population was divided into three age groups. The quantitative data was specified as the mean ± SD. For the qualitative variables, the Chi- Square test was used. One-way ANOVA and Bonferroni tests were used to examine the effect of the “age group” and the number of treatment procedures. A total of 1473 treatment procedures were performed, of which 110 (7.5%) were cleanings, 898 (61%) were restorative procedures, 332 (21.7%) were extractions, 22 (1.6%) were endodontic treatments, 62 (4.2%) were pulpotomies, and 59 (4%) were stainless steel crowns. Regarding the mean number of incisor root canal treatments (RCT), age group 3 received a significantly higher mean number of incisor RCTs than age group 1 (p = 0.02). Age group 1 received a higher average of pulpotomies and stainless-steel crowns (p = 0.00) compared to groups 2 and 3. GA is a safe procedure for the dental treatment of CSHCN, with minimal postoperative complications, which should be included among dental public programs.
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    Biological interactions between calcium silicate-based endodontic biomaterials and periodontal ligament stem cells: A systematic review of in vitro studies
    (WILEY, 2021-08-02) Sanz, Jose Luís; Pecci Lloret, María Pilar; Pecci Lloret, Miguel Ramón; Guerrero Gironés, Julia; Melo, María; Sanz, Jose Luís; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU::Facultad de Medicina
    Background: Most recently, the biological interactions, that is cytocompatibility, cell differentiation and mineralization potential, between calcium silicate-based biomaterials and periodontal ligament stem cells (PDLSCs) have been studied at an in vitro level, in order to predict their clinical behaviour during endodontic procedures involving direct contact with periodontal tissues, namely root canal treatment, endodontic surgery and regenerative endodontic treatment. Objective: The aim of the present systematic review was to present a qualitative synthesis of available in vitro studies assessing the biological interaction of PDLSCs and calcium silicate-based biomaterials. Methodology: The present review followed PRISMA 2020 guidelines. An advanced database search was performed in Medline, Scopus, Embase, Web of Science and SciELO on 1 July 2020 and last updated on 22 April 2021. Studies assessing the biological interactions of PDLSCs with calcium silicate-based sealers (CSSs) and/or cements (CSCs) at an in vitro level were considered for inclusion. The evaluation of the ‘biological interaction’ was defined as any assay or test on the cytotoxicity, cytocompatibility, cell plasticity or differentiation potential, and bioactive properties of PDLSCs cultured in CSC or CSS-conditioned media. Quality (risk of bias) was assessed using a modified CONSORT checklist for in vitro studies of dental materials. Results: A total of 20 studies were included for the qualitative synthesis. CSCs and CSSs, as a group of endodontic materials, exhibit adequate cytocompatibility and favour the osteo/ cementogenic differentiation and mineralization potential of PDLSCs, as evidenced from the in vitro studies included in the present systematic review. Discussion: The influence of the compositional differences, inclusion of additives, sample preparation, and varying conditions and manipulations on the biological properties of calcium silicate-based materials remain a subject for future research. Conclusions: Within the limitations of the in vitro nature of the included studies, this work supports the potential use of calcium silicate-based endodontic materials in stem cell therapy and biologically based regenerative endodontic procedures.
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    Thermo-setting glass ionomer cements promote variable biological responses of human dental pulp stem cells
    (2018) Collado-González, Mar; Pecci Lloret, Miguel Ramón; Tomás Catalá, Christopher Joseph; García Bernal, David; Oñate Sánchez, Ricardo Elías; Llena, Carmen; Forner, Leopoldo; Rosa, Vinicius; Rodríguez Lozano, Francisco Javier; Dermatología, Estomatología, Radiología y Medicina Física
    Objective: To evaluate the in vitro cytotoxicity of Equia Forte (GC, Tokyo, Japan) and Ionostar Molar (Voco, Cuxhaven, Germany) on human dental pulp stem cells (hDPSCs). Methods: hDPSCs isolated from third molars were exposed to several dilutions of Equia Forte and Ionostar Molar eluates (1/1, 1/2 and 1/4). These eluates were obtained by storing material samples in respective cell culture medium for 24 h (n = 40). hDPSCs in basal growth culture medium were the control. Cell viability and cell migration assays were performed using the MTT and wound-healing assays, respectively. Also, induction of apoptosis and changes in cell phenotype were evaluated by flow cytometry. Changes in cell morphology were analysed by immunocytofluorescence staining. To evaluate cell attachment to the different materials, hDPSCs were directly seeded onto the material surfaces and analyzed by scanning electron microscopy (SEM). The chemical composition of the materials was determined by energy dispersive X-ray (EDX) and eluates were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS). Statistical analysis was performed with analysis of variance (ANOVA) and Student's t-test (α < 0.05). Results: Undiluted Equia Forte extracts led to a similar cell proliferation rates than the control group from 72 h onwards. There were no significance differences between Equia Forte and Ionostar Molar in terms of cell apoptosis and phenotype. However, in presence of Equia extracts the migration capacity of hDPSCs was higher than in presence of Ionostar Molar (p < 0.05). Also, SEM studies showed a higher degree of cell attachment when Equia Forte extracts were used. Finally, EDX analysis pointed to different weight percentages of C, O and Ca ions in glass ionomer cements, while other elements such as La, Al, Si, W, Mo and F were also detected. Significance: In summary, Equia Forte promoted better biological responses in hDPSCs than Ionostar Molar.
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