Dental demineralization was determined in patients at three time points during fixed orthodontic treatment. A multiple cross-sectional study included 108 patients divided into three different groups: (1) beginning of orthodontic treatment; (2) one year into treatment; and (3) two years into treatment. Demineralization was estimated using a DIAGNOdent pen. We obtained data from multiple tooth-by-tooth demineralization readings combined with salivary pH and patients’ oral hygienic and dietary behaviors. A t-test for independent samples and Spearman´s correlation were performed. No demineralizations differences were found between the initial stage and one year into treatment. Between one and two years small differences were observed, but demineralization increased between the initial stage and second treatment year, predominating in upper right central incisors (p = 0.056), upper left lateral incisors (p = 0.040), both upper canines (p = 0.055 and p = 0.040, respectively) and first left premolars (p = 0.034 and p = 0.053, respectively). We did not find associations between oral hygiene and dietary behaviours or salivary pH. In conclusion, demineralization occurred in first year of treatment and increased during second year, predominating in the upper arch and the left side mainly in upper right central incisors, upper left lateral incisors, both upper canines, and first left premolars.
Objetivo: realizar una prospectiva de la producción de coco en Yucatán. Metodología: se llevó a cabo una investigación documental y se efectuaron encuestas y entrevistas a productores y a otros actores de las regiones productoras de coco de Yucatán. Resultados: la recuperación de la producción del fruto en el estado ha sido muy lenta, porque después de la devastación que causó la enfermedad del amarillamiento letal del cocotero, los actores quedaron desarticulados y desorganizados. Además, hubo escaso aprovechamiento integral de la fruta, falta de créditos del gobierno o apoyos económicos privados. No obstante, en el estado hay desarrollos científicos que pueden contribuir a la creación de plantaciones productivas. Limitaciones: el trabajo de campo se realizó en al menos un municipio por cada región productora. Se seleccionaron aquellos que tenían mayor producción. Valor: se analizó la actual producción y se hizo una prospectiva de los escenarios posibles. Conclusiones: es importante la creación de vínculos entre productores, académicos y gobierno, dar capacitación sobre el aprovechamiento integral del fruto e impulsar políticas públicas para minimizar las debilidades de la cadena de producción y maximizar las oportunidades para los productores.
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