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Vicente Hernández, Ascensión

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Vicente Hernández, Ascensión
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Universidad de Murcia. Departamento de Dermatología, Estomatología,Radiología y Medicina Física
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    Influence of different ethnicities on early childhood caries in preschool children at risk of social exclusion in Southeastern Spain
    (2025-06) Navarro-Vera, Irene; Montiel-Company, José María; Martínez Beneyto, Yolanda; Serna Muñoz, Clara; Ortiz Ruiz, Antonio José; Vicente Hernández, Ascensión; Dermatología, Estomatología, Radiología y Medicina Física
    Aim: To estimate the prevalence of early childhood caries and to study a possible influence on different ethnicities in preschool children aged 3 to 5 with social exclusion risk. Background: Oral diseases are a major global public health problem, with negative effects at both individual and collective levels, and there is a relationship between socioeconomic characteristics such as income, occupation and educational level, with the prevalence and severity of oral diseases. Methods: A cross sectional study was conducted in a sample of 288 preschool children belonging to three schools in the Southeastern Spain among other variables dmft and ICDASS index. Conclusion: The ethnicity of school children at risk of social exclusion is a determining factor in the increased prevalence of cavities in primary caries.
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    Influence of facial pattern on the aesthetic assessment of the inclination of the occlusal plane in the frontal view
    (Springer, 2025-03-11) Cárdenas Soria, Juan; Bravo González, Luis Alberto; Vicente Hernández, Ascensión; Dermatología, Estomatología, Radiología y Medicina Física
    Objectives The aim of this study was to analyse the aesthetic perception by orthodontists, dentists and laypeople of the different inclinations on the occlusal plane in the frontal view in relation to facial biotype. Materials and methods The three groups of assessors evaluated the aesthetics of images with occlusal plane inclinations of 0º, 2º and 4º in a mesofacial, dolichofacial and brachyfacial face. Scores were assigned from 1 to 10 (“1”: poor aesthetics and “10”: very satisfactory aesthetics). The data were evaluated by the Kruskal–Wallis test (p < 0.05) and the Mann–Whitney test (Bonferroni correction p < 0.016). Results In meso- and dolichofacial faces, orthodontists considered 0º occlusal plane inclination to be significantly more aesthetic than 2º (mesofacial p = 0.004, dolichofacial p < 0.001) and 4º (p < 0.001), and 2º inclination more than 4º (p < 0.001). Dentists and laypeople rated 0º and 2º inclinations as significantly more aesthetic than 4º (p < 0.001) with no significant differences between 0º and 2º inclinations. For the brachyfacial face, the three groups rated 0º and 2º occlusal plane inclination as significantly more aesthetic than 4º inclination (p < 0.001), with 0º and 2º inclinations scoring similarly (p > 0.016). Conclusions Orthodontists were more critical than dentists and laypeople when assessing mesofacial and dolichofacial facial types, whereas no differences were observed between the three groups for brachyfacial faces. Clinical relevance The facial pattern influences the perception of the occlusal plane. Understanding these differences is crucial for clinicians, as it can enhance diagnostic accuracy and optimize treatment planning, leading to more personalized and effective orthodontic care.
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    Effect of different enamel preconditioning protocols on the adhesion of ceramic brackets
    (2026-05-28) Lara Cendán; Luis-Alberto Bravo-González; Bravo González, Luis Alberto; Ortiz Ruiz, Antonio José; Martínez Beneyto, Yolanda; Vicente Hernández, Ascensión; Dermatología, Estomatología, Radiología y Medicina Física; Facultades de la UMU::Facultad de Medicina
    This study aimed to compare the adhesion of Clarity Advanced ceramic brackets bonded with APC Flash Free (APC FF) and Transbond XT (TXT) using different enamel conditioning protocols. Brackets were bonded to extracted bovine incisors, which were divided into 6 groups: 1)Transbond Plus Self Etching Primer (TSEP)/APC FF, 2)Etching/TSEP/APC FF, 3)Polishing/TSEP/APC FF, 4) TSEP/TXT, 5)Etching/TSEP/TXT and 6)Polishing/TSEP/TXT. Shear bond strength was measured using a universal testing machine. After debonding, each tooth was assigned an Adhesive Remnant Index (ARI) score. The enamel was observed using a scanning electron microscope (SEM). The penetrability of TSEP and composites was determined using confocal microscopy. The bond strength of Etching/TSEP/TXT and Polishing/TSEP/TXT groups was significantly higher than that of the remaining groups, with Etching/TSEP/TXT being significantly higher than Polishing/TSEP/TXT (p<0.05). With APC FF, there was a tendency for an increase in residual adhesive when etching and with TXT when polishing. SEM showed that etching produced the most porous enamel surface. For both APC FF and TXT bonded brackets, TSEP penetration was similar and significantly higher after etching (p=0.000). APC FF and TXT had similar and significantly higher penetration in the etched groups (p=0.000). Ceramic brackets bonded with TXT pre-etching the enamel before applying TSEP showed the most favourable adhesive characteristics.
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