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Psychosocial impact of malocclusion in Spanish adolescents
Carlos Bellot-Arcí,s,José,Marí,a Montiel-Company,José,Manuel Almerich-Silla 대한치과교정학회 2013 대한치과교정학회지 Vol.43 No.4
Objective: To evaluate the psychosocial impact of malocclusion, determine its relationship with the severity of malocclusion, and assess the influence of gender and social class on this relationship in adolescents. Methods: A random sample of 627 Spanish adolescents aged 12 - 15 years underwent intraoral examinations by 3 calibrated examiners (intraexaminer and interexaminer kappa > 0.85) at their schools. Psychosocial impact was measured through a self-rated Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ). The severity of malocclusion was measured by the Index of Orthodontic Treatment Need (IOTN). Gender and social class were also recorded. Results: The total PIDAQ score and those of its 4 subscales, social impact, psychological impact, aesthetic concern, and dental self-confidence, presented significant differences (p ≤ 0.05 by analysis of variance) and linear relationships with the IOTN grades (p ≤ 0.05 by linear regression). Stepwise linear regression models showed that the IOTN dental health component was a predictive variable of the total and subscale PIDAQ scores. Neither gender nor social class was an independent predictive variable of this relationship, except the linear model for psychological impact, where gender was a predictive variable. The occlusal conditions responsible for higher PIDAQ scores were increased overjet, impeded eruption, tooth displacement, and increased overbite. Conclusions: Malocclusion has a psychological impact in adolescents and this impact increases with the severity of malocclusion. Social class may not influence this association, but the psychological impact seems to be greater among girls.[Korean J Orthod 2013;43(4):193-200]
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Rocí,o Crystabel Ló,pez-Gonzá,lez,Yara Suhan Juá,rez-Campusano,José,Luis Rodrí,guez-Chá,vez,Guillermo Delgado-Lamas,Sofí,a Marí,a Arvizu Medrano,Ramó,n Á,lv 한국식물병리학회 2021 Plant Pathology Journal Vol.37 No.1
Blue mold caused by Penicillium expansum is one of the most significant postharvest diseases of apples. Some microorganisms associated with the surface of ripen- ing apples possess the ability to inhibit the growth of P. expansum. However, the existing literature about their colonization in the stages before ripening is not explored in depth. This study aims to characterize the antagonistic capacity of bacterial populations from five fruit development stages of ‘Royal Gala’ apples. The re- sults have shown that the density of the bacterial popu- lations decreases throughout the ripening stages of fruit (from 1.0 × 105 to 1.1 × 101 cfu/cm2). A total of 25 bacte- rial morphotypes (corresponding to five genera identi- fied by 16S RNA) were differentiated in which Bacillus stood out as a predominant genus. In the in vitro an- tagonism tests, 10 Bacillus strains (40%) inhibited the mycelial growth of P. expansum from 30.1% to 60.1%, while in fruit bioassays, the same strains reduced the fruit rot ranging from 12% to 66%. Moreover, the bacterial strains with antagonistic activity increased in the ripening fruit stage. B. subtilis subsp. spiziennii M24 obtained the highest antagonistic activity (66.9% of rot reduction). The matrix-assisted laser desorption ioniza- tion-time of flight mass spectrometry analysis revealed that bacteria with antagonistic activity produce anti- fungal lipopeptides from iturin and fengycin families.
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Restoration and conservation of anatomic pieces
Camila Cá,rdenas Guerrero Guzmá,n,Karen Alejandra Pé,rez Dí,az,Marí,a Paula Ruí,z Dí,az,Valentina Dí,az Sá,nchez,André,s Camilo Ariza Aguirre,Laura Catalina Can 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.3
In this study, a restoration process was developed with potassium hydroxide (KOH), in order to improve each of the structures for their posterior fixation, through the use of new methods such as the Chilean conservative fixative solution (SFCCh), with exceptional results. Restore anatomical pieces corresponding to corpse and organs, being these last set with the SFCCh. In this work dealt with processes of restoration with potassium hydroxide, sodium chloride, and sodium hypochlorite, the process began with the cleanliness and suture of the structures for subsequent fixing in Chilean conservative fixative solution, making use of a corpse and different anatomical parts. Work based on items found in the database, Elsevier, Science Direct, ProQuest, and MEDLINE. At the end of the process of restoration and conservation of the anatomical pieces, was observed an improvement in muscle pigment with decrease of rigidity in the specimen, additionally a recovery of appearance in the vascular-nervous elements was achieved. The organs were much more malleable and the structures facilitate the identification of specific details, its subsequent immersion in SFCCh allows the longer preservation of the obtained results. The restoration with potassium hydroxide allows the improvement in the appearance of the different anatomical structures and simultaneously to facilitate its study. The SFCCh is an alternative that replaces partially the use of formaldehyde. In addition, it presents toxicity reduction.
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