Distribution of mutans streptococci among Nigerian school children.

A group of 504 Nigerian school children with an average age of 13 years were included in this study. The children attended 4 schools in the Jos area, Plateau State, and Toro Local Government area of Bauchi State. Salivary levels of mutans streptococci in these children were estimated with the "Strip mutans" test.

Periodontal status and treatment needs in the Chiangmai/Lamphun provinces of Thailand.

As part of an oral health survey concerned with the evaluation of a collaborative primary oral health care program, the CPITN system was used to determine the periodontal status and treatment needs of 2009 Thai people aged 12-44 yr. Calculus dominated the CPITN scores. The percentage of persons with healthy periodontal tissues was small, ranging from 0.

Dental caries experience in the Chiangmai/Lamphun provinces of Thailand.

Thailand has a highly developed system of primary health care. Using the criteria and methods recommended by W.H.