Blanca de la Higuera

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The purpose of the study was to evaluate the shear bond strength of stainless steel orthodontic brackets directly bonded to extracted human premolar teeth. Fifty teeth were randomly divided into five groups: (1) System One (chemically cured composite resin), (2) Light Bond (light-cured composite resin), (3) Vivaglass Cem (self-curing glass ionomer cement),(More)
OBJECTIVES To evaluate the shear bond strength and site of failure of brackets bonded to dry and wet enamel. STUDY DESIGN 50 teeth were divided into ten groups of 5 teeth each (10 surfaces). In half the groups enamel was kept dry before bonding, and in the other half distilled water was applied to wet the surface after etching. The following groups were(More)
To evaluate and compare the solubility and sorption of orthodontic bonding cements after immersion in different solutions, five different cements were used: a fluoride-containing resin composite, a light-cured glass ionomer cement, a light-cured resin composite, a paste-paste chemically cured resin composite, and a liquid-paste chemically cured resin(More)
Four MAbs recognizing HLA class II antigens were produced by immunization with human leukemic cells, and were characterized through immunoprecipitation and cell distribution studies. They were tested against a panel of normal and leukemic cells, Epstein-Barr virus (EBV)-transformed homozygous typing cells (HTC)s, deletion mutant cell lines, and 11 other(More)
We have compared the expression of the common leucocyte antigen (CD45) and the restricted leucocyte antigen (CD45R) on normal haematopoietic cells, cell lines, and a total number of 136 cases of myeloid and lymphoid proliferative syndromes. CD45, the conventional leucocyte antigen, presents a generalized distribution along the lymphoid and myeloid(More)
The monoclonal antibody GR7A4 was produced against a human lymphoblastic leukemia (ALL-B). Biochemical characterization of GR7A4 was carried out with Raji cells in SDS-PAGE studies. GR7A4 precipitated a 43 kd molecule. The tissue distribution and molecular weight were similar to the T10 antigen. Modulation and capping of GR7A4 antigen reduced its binding(More)
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