Effect of benzalkonium chloride on dentin bond strength and endogenous enzymatic activity.

Objective: This in vitro study evaluated at baseline (T0) and over time (T12 months), the effect of a multi-mode universal adhesive compared with two experimental formulations blended with different concentrations of benzalkonium chloride (BAC), on bond strength and endogenous enzymatic activity.

Methods And Materials: Specimens were assigned to the following groups according to the adhesive protocol: G1) All-Bond Universal (ABU) self-etch (SE); G2) ABU + 0.5% BAC SE; G3) ABU + 1% methacrylate BAC SE; G4) ABU etch-and-rinse (E&R); G5) ABU + 0.

Intestinal Obstruction Caused by Ileocolic and Colocolic Intussusception in an Adult Patient with Cecal Lipoma.

. Intussusception is a rare clinical entity in adults (<1% of intestinal obstructions). Colonic intussusception is even rarer, particularly when caused by lipomas.

Pre-operative IL-2 immunoprophylaxis of cancer recurrence: long-term clinical results of a phase II study in radically operable colorectal cancer.

This study evaluates retrospectively the outcome of 20 colorectal cancer patients radically operated (M/F 13/7; primary/recurrent 15/5; Dukes B=11; C=6; D=3) who received pre-operative IL-2 (18,000, 000 IU/daily s.c. for 3 days) and the outcome of 40 colorectal cancer (primary/recurrent 40/0) patients age, sex and stage-matched radically operated, as control group.

[Our experience in the use of mechanical staplers in the execution of step-by-step subtotal gastrectomy].

The Authors describe their reconstruction technique after a "step" gastric resection for peptic or neoplastic pathology. The use of staplers such as TA 30 or GIA for the duodenum is reported. After skeletonizing the lesser curve up to the cardias by sectioning the left gastric artery at its origin and up to the penultimate short vessel on the greater curve, the stomach is resected distally to this two points using a TA90 staplers.