Impact of acidic beverages on composition and surface characteristics of human teeth: scanning electron microscopic, stereomicroscopic and energy dispersive x-ray analyses.

Objectives: The objective of this study was to evaluate the effect of acidic beverages on the surface topography and elemental composition of human teeth.

Methods: A total of five highly acidic beverages (Red Bull, Pepsi, Apple Cidra, Tang Mosambi, and Tang Orange) were investigated. The tooth specimens of experimental groups were submerged in each beverage and incubated at 37 °C for 7 days, whereas, the tooth specimens of control groups were placed in distilled water.

Evaluating the pH of Various Commercially Available Beverages in Pakistan: Impact of Highly Acidic Beverages on the Surface Hardness and Weight Loss of Human Teeth.

The objectives of this study were to investigate the pH of common beverages and to evaluate the effects of common acidic beverages on the surface hardness and weight loss of human tooth specimens. A total of 106 beverages were conveniently purchased from supermarkets in Karachi, Pakistan. Prior to evaluation, beverages were refrigerated or stored at room temperature in accordance with the manufacturers’ recommendations.

Frequency and magnetic resonance imaging patterns of tuberculous spondylitis lesions in adults.

Objective: To find out the frequency and patterns of various lesions in tuberculous spondylitis in adults on magnetic resonance imaging (MRI).

Study Design: Case series.

Place And Duration Of Study: Radiology Department, Military Hospital (MH) Rawalpindi, from September 2006 to March 2007.

Determination of gestational age transverse cerebellar diameter in third trimester of pregnancy.

Objective: To assess the usefulness of transverse cerebellar diameter (TCD) as an independent parameter for gestational age assessment in third trimester of pregnancy.

Design: An observational study.

Place And Duration Of Study: Diagnostic Radiology Department, PNS Shifa, Karachi between April 2002 to July 2004.