A Comparison of Chronic Periodontitis in HIV-Seropositive Subjects and the General Population in the Ga-Rankuwa Area, South Africa.

The effect of HIV infection on the prevalence and the rate of progression of chronic periodontitis is not clear. The aim of this study was to compare parameters associated with the severity of chronic periodontitis in terms of periodontal probing depths, gingival recession, plaque indexes, and bleeding indexes of HIV-seropositive subjects and healthy age-matched control subjects, and of HIV-seropositive subjects on highly active antiretroviral therapy and those not receiving such treatment. Two cohorts of subjects with chronic periodontitis were recruited for this study over a period of six months.

Dental caries in children in South Africa and Swaziland: a systematic review 1919-2007.

Objective: To determine caries rate trends in children in South Africa and Swaziland since the first published epidemiological study in 1910.

Method: Cochrane Collaboration methods were used to do a systematic review of reported caries rates from 1919 to 2007 in 5-6y, 11-13y and 14-17y children.

Results: There are variations in caries rates among racial groups and between rural and urban areas but secular trends show decreasing prevalence and dmft or DMFT over time.

Dental caries rates in primary teeth in 2002, and caries surveillance trends 1981-2002, in a South African city.

Objective: To determine trends in the prevalence and severity of dental caries in 2- to 5-year-old children.

Basic Research Design: Repeated cross-sectional surveys in 1981, 1983, 1985, 1987, 1989, 1991, 1994, 1997 and 2002.

Clinical Setting: Nursery schools in Germiston, South Africa.

Dental caries trends in 5- to 6-year-old and 11- to 13-year-old children in three UNICEF designated regions--Sub Saharan Africa, Middle East and North Africa, Latin America and Caribbean: 1970-2004.

Aim: The aim of the study was to investigate trends in dental caries prevalence and severity in three developing regions of the world over 35 years.

Design: A systematic review of published information.

Methods: Online databases were used to find 130 caries epidemiological studies that used WHO caries diagnostic criteria, published between 1970 and 2004 among 5- to 6-year-old and 11- to 13-year-old children.

Characterization of Streptococcus mutans diversity by determining restriction fragment-length polymorphisms of the gtfB gene of isolates from 5-year-old children and their mothers.

The diversity between Streptococcus mutans clinical isolates from 5-year-old children and their mothers in two South African ethnic groups was investigated. The gtfB gene encoding for glucosyltransferase (EC 2.4.