Comparative evaluation of surface roughness and color stability of nanohybrid composite resin after periodic exposure to tea, coffee, and Coca-cola - An profilometric and image analysis study.

Aim: The aim of this study is to evaluate the surface roughness and color stability of a nanohybrid composite resin after exposure to tea, coffee, Coca-cola, and artificial saliva on the 7, 14, and 28 day.

Materials And Methods: Forty specimens of nanohybrid composite resin discs of dimension 6 mm × 2 mm were fabricated and were randomly divided into four equal groups based on beverages (Group 1: control group - artificial saliva, Group 2: Tea, Group 3: Coffee, and Group 4 : Coca-cola). Baseline readings of surface roughness (Ra) and color change (ΔE) were obtained by profilometer and digital image analysis technique in CIE l*a*b scale followed by the readings (ΔE) taken on the 7, 14, and 28 day of exposure to respective beverages.

Effect of four different dentifrices applied by customized automated brushing device on enamel surface abrasion: An profilometric study.

Aim: The aim of this study is to evaluate the enamel surface abrasion using four different dentifrices and a customized automated brushing machine under a profilometer.

Materials And Methods: A total of 30 enamel blocks (9 mm × 9 mm × 2 mm) were prepared from freshly extracted maxillary central incisors which were randomly divided into five equal groups (Group 1: specimens brushed with Colgate Total, Group 2: specimens brushed with Colgate Lemon and Salt, Group 3: specimens brushed with Colgate Visible White, Group 4: specimens brushed with Colgate Sensitive, and Group 5: intact enamel surface). Samples were brushed using a customized automated toothbrushing machine for 60 min.

Adenomatous Colon Polyps in Diabetes: Increased Prevalence in Patients with Chronic Kidney Disease and Its Association with Parathyroid Hormone.

Previous studies have shown a higher prevalence of malignancy in patients with diabetes mellitus (DM) and chronic kidney disease (CKD). The purpose of this study was to investigate the prevalence of adenomatous colon polyps (ACP) as they occur in subjects with DM and coexisting CKD. This is a retrospective cohort study of patients with DM (n=565) who had undergone colonoscopy between 2000-2010.

Black esophagus: new insights and multicenter international experience in 2014.

Background: Black esophagus or acute esophageal necrosis (AEN) is a striking medical condition characterized by circumferential black appearing esophageal mucosa affecting various lengths of the organ with nearly universal involvement of the distal esophagus and abrupt transition at the gastroesophageal junction. This syndrome is gaining acceptance as an important cause of upper gastrointestinal hemorrhage in hospitalized patients.

Aims: To better describe clinical features, risk factors, associated conditions, etiology, treatment, complications, and outcome in patients with AEN at various medical centers across the globe.

Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) in Strongyloides stercoralis Hyperinfection.

Strongyloides stercoralis (S. stercoralis) is a soil transmitted intestinal roundworm that has a unique ability to multiply within the human host and reinfect the human carrier by a process of autoinfection. By this property, S.