Methanethiol (methyl mercaptan) is an important contributor to oral malodour and periodontal tissue destruction. Porphyromonas gingivalis, Prevotella intermedia and Fusobacterium nucleatum are key oral microbial species that produce methanethiol via methionine gamma lyase (mgl) activity. The aim of this study was to compare an mgl knockout strain of P. gingivalis with its wild type using a 10-s...

One of the major innovations in dental home care therapy was the introduction of fluorides in the 1950s for the management of dental caries. Since that time, fluoride has not only been incorporated into dentifrices, but also into a variety of delivery systems. It was not until the 1990s that the next significant advance in patient home care occurred with the introduction by the Colgate-Palmoliv...

This is the first ever-detailed study of tongue diseases in Libyan population, where the tongue conditions found in 320 patients (9.2%) of 3,460 consecutive patients screened in the department of Oral Medicine and Oral Diagnosis at faculty of dentistry, Benghazi Libya. Both sexes were affected almost equally and only 25 patients were aware of their tongue disease. Forty patients had one or more...

One of the major innovations in dental home care therapy was the introduction of fluorides in the 1950s for the management of dental caries. Since that time, fluoride has not only been incorporated into dentifrices, but also into a variety of delivery systems. It was not until the 1990s that the next significant advance in patient home care occurred with the introduction by the Colgate-Palmoliv...

Objective: The purpose of this study was to develop a novel colorimetric system for direct detection of hydrogen sulfide on the tongue dorsum from subjects with complaints of halitosis. Method: An assay system comprised of a cotton swab impregnated with zinc sulfate, attached chromatography paper, stabilizing solution, and coloring reagents for the methylene blue technique was developed. Using ...