External apical root resorption diagnosis by using FII human dentine fraction and salivary IGg - 22/05/18
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Summary |
Background |
External apical root resorption as a consequence of orthodontic treatment is an inflammatory pathological process that results in permanent loss of tooth structure from the root apex.
Objectives |
This study aimed to investigate the diagnostic potential of human dentine fractions and salivary IgG in external apical root resorption.
Patients and methods |
Saliva samples were collected from 10 patients before (T0) and after 3 (T3), 6 (T6) and 12 (T12) months of orthodontic treatment. The total dentinal extract, obtained from human third molars, was fractioned by gel filtration chromatography in three fractions denominated FI, FII and FIII. The root resorption analysis of the upper central incisors was performed by digital image subtraction method. Reactivity of salivary IgG to antigenic fractions of dentine was determined by enzyme-linked immunosorbent assay (Elisa).
Results |
Regardless of treatment, FI dentin fraction with high MM (<300kDa) was the one that presented highest reactivity with salivary IgG. However, it was found higher salivary IgG reactivity for FII (69 to 45 kilodalton [kDa]) as compared to FIII (<45kDa) at (T6) and (T12), (P<0.05), the same periods in that the root resorptions were detected.
Conclusion |
Our results suggest that FII human dentine fraction and salivary IgG have potential to be used in diagnosis and monitoring of external apical root resorption. The development of a practical and accessible biochemical test using saliva and FII dentine fraction may help in the prevention of severe root resorption.
El texto completo de este artículo está disponible en PDF.Key-words : Root resorption, Dentine non-collagenous proteins, Orthodontic treatment, Saliva
Esquema
Vol 16 - N° 2
P. 258-267 - juin 2018 Regresar al número
Artículo precedente
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Bienvenido a EM-consulte, la referencia de los profesionales de la salud.
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