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1.
Eur Arch Paediatr Dent ; 24(2): 167-175, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36930443

ABSTRACT

PURPOSE: The purpose of this study was to gather existing data on the efficacy of tooth splinting (TS) in patients with traumatized primary teeth, evaluating their overall prognosis and reported complications. METHODS: Electronic searches were performed in seven databases up to Februray/2023. Clinical studies published in the last two decades and presenting the following characteristics were included: (a) reporting on children with traumatized primary teeth; (b) describing the efficacy of splinting those teeth. Studies describing imobilization of dental avulsion were excluded. RESULTS: A total of 163 potentially relevant studies were initially found. After title/abstract screening, and full-text evaluation, three retrospective studies with moderate to high risk of bias were included. The studies described the outcomes of TS in primary teeth with luxation (intrusion, extrusion, lateral displacement), intra-alveolar root fracture, and/or alveolar fracture. High clinical success rate was observed for teeth with root fracture. Benefits of spliting teeth with lateral luxation were not identified, although it may be a reccomended approach. No study was found evaluating TS for alveolar fracture. CONCLUSION: Based on a low level of evidence, the findings highlight a better clinical success rate of the use of TS in the management of deciduous teeth with root fractures.


Subject(s)
Tooth Avulsion , Tooth Fractures , Child , Humans , Tooth Avulsion/therapy , Retrospective Studies , Tooth Root/injuries , Tooth Fractures/therapy , Tooth, Deciduous
2.
Anal Methods ; 13(43): 5216-5223, 2021 11 11.
Article in English | MEDLINE | ID: mdl-34698320

ABSTRACT

In the present work, four, well-studied, model peptides (e.g., substance P, bradykinin, angiotensin I and AT-Hook 3) were used to correlate structural information provided by ion mobility and ECD/CID fragmentation in a TIMS-q-EMS-ToF MS/MS platform, incorporporating an electromagnetostatic cell (EMS). The structural heterogeneity of the model peptides was observed by (i) multi-component ion mobility profiles (high ion mobility resolving power, R ∼115-145), and (ii) fast online characteristic ECD fragmentation patterns per ion mobility band (∼0.2 min). Particularly, it was demonstrated that all investigated species were probably conformers, involving cis/trans-isomerizations at X-Pro peptide bond, following the same protonation schemes, in good agreement with previous ion mobility and single point mutation experiments. The comparison between ion mobility selected ECD spectra and traditional FT-ICR ECD MS/MS spectra showed comparable ECD fragmentation efficiencies but differences in the ratio of radical (˙)/prime (') fragment species (H˙ transfer), which were associated with the differences in detection time after the electron capture event. The analysis of model peptides using online TIMS-q-EMSToF MS/MS provided complementary structural information on the intramolecular interactions that stabilize the different gas-phase conformations to those obtained by ion mobility or ECD alone.


Subject(s)
Ion Mobility Spectrometry , Tandem Mass Spectrometry , Electrons , Eye, Artificial , Peptides/analysis , Peptides/chemistry
3.
Bol. pediatr ; 44(187): 3-8, 2004.
Article in Es | IBECS | ID: ibc-37647

ABSTRACT

Objetivo: Estudio de la evolución del perfil etiológico y patrón de sensibilidad de los uropatógenos pediátricos en nuestro medio y sus implicaciones sobre la elección de tratamiento antibiótico. Material y métodos: Análisis retrospectivo de los resultados de los urocultivos de pacientes pediátricos atendidos en los servicios de hospitalización y consulta del Hospital Virgen de la Concha de Zamora en el período 1995-2001. Valoración de la evolución en el número e idoneidad de las muestras, tipos de microorganismos aislados, patrón de sensibilidad a antimicrobianos y su variación en función de la edad y características clínicas de los pacientes. Resultados: De los 5.967 urocultivos revisados (de 3.725 pacientes) resultaron positivos 756 (12,7 por ciento) y 948 contaminados (15,9 por ciento). En los últimos años descendió significativamente (p < 0,001) el número de muestras, a expensas de las contaminadas. Los microorganismos más frecuentes fueron Escherichia coli (68 por ciento), Proteus mirabilis (6,2 por ciento), Pseudomonas aeruginosa (4,2 por ciento), Enterobacter cloacae (3 por ciento) y Enterococcus faecalis (2,8 por ciento). Por grupos de edad, destaca un mayor predominio de E. coli en los mayores de 2 años (79,9 por ciento). La sensibilidad específica a E. coli por antibióticos fue: ampicilina: 36,7 por ciento, amoxicilina-clavulánico: 93,3 por ciento, cefalosporinas 11 generación: 95 por ciento, cefuroxima: 99,3 por ciento, cefixima: 99,2 por ciento, cefo taxima: 100 por ciento, gentamicina: 96,6 por ciento, cotrimoxazol: 77,3 por ciento, nitrofurantoina: 94,9 por ciento, fosfomicina: 100 por ciento, asociación cefotaxima-gentamicina: 100 por ciento. La mayoría de las cepas resistentes a cefalosporinas fueron de P. aeruginosa, E. cloacae y M. morganii, mientras que para nitrofurantoina, cotrimoxazol y gentamicina fueron de E. coli. En el período estudiado se experimentó una discreta recuperación de sensibilidad de E. coli a cotrimoxazol (p = 0,033). Conclusiones: E. coli es el uropatógeno predominante, frente al que mantienen una buena actividad las cefalosporinas, gentamicina, fosfomicina y nitrofurantoina. La sensibilidad a cotrimoxazol se encuentra en el límite que condiciona su utilidad como tratamiento empírico. En pacientes con criterios de riesgo las cefalosporinas de 3ª generación, asociadas o no a gentamicina, constituyen la opción más recomendable. Cefixima y fosfomicina presentan un adecuado perfil para su uso en pacientes que toleran la vía oral (AU)


Subject(s)
Female , Child, Preschool , Infant , Male , Child , Humans , Urinary Tract Infections/drug therapy , Drug Resistance, Microbial , Escherichia coli , Retrospective Studies , Cystitis/epidemiology , Pyelonephritis/epidemiology , Proteus mirabilis , Pseudomonas aeruginosa , Anti-Bacterial Agents/pharmacokinetics
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