Assuntos
Aquicultura , Doenças dos Peixes/virologia , Linguados/virologia , Nodaviridae/patogenicidade , Infecções por Vírus de RNA/veterinária , Animais , Sequência de Bases , DNA Viral , Dados de Sequência Molecular , Nodaviridae/genética , Infecções por Vírus de RNA/genética , Infecções por Vírus de RNA/patologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa/veterinária , Reino UnidoRESUMO
A six week single-blind clinical study was conducted to compare the effect of three dentifrices and a dental gel on the formation of dental plaque. On the criterion of their baseline plaque scores, male and female adult subjects were allocated to groups by restricted randomisation. The subjects used their assigned dentifrice twice a day and were examined for the presence of plaque after three and six weeks use. The results showed that the dental gel significantly reduced plaque when compared with the three dentifrices. There was no significant difference among the dentifrices with regard to plaque formation.
Assuntos
Clorexidina/uso terapêutico , Placa Dentária/prevenção & controle , Dentifrícios , Adolescente , Adulto , Placa Dentária/etiologia , Índice de Placa Dentária , Feminino , Géis , Humanos , Masculino , Pessoa de Meia-Idade , Método Simples-CegoRESUMO
A rare case of multiple idiopathic root resorption (MIRR) involving 5 adjacent anterior and posterior teeth is presented and the pathogenesis discussed. The proposition is made that MIRR results from microbiologically-induced osteoclast activity facilitated by prior osteoblast activation.
Assuntos
Reabsorção da Raiz , Adulto , Cemento Dentário/patologia , Dentina/patologia , Feminino , Gengiva/patologia , Humanos , Osteoclastos/patologia , Reabsorção da Raiz/etiologia , Reabsorção da Raiz/patologiaRESUMO
This paper examines the relationships between 3 clinical parameters: pocket depth, gingival index, and bleeding index and 2 laboratory parameters: spirochaete counts and motility counts on the basis of analysis of 883 observations made in the mouths of 41 patients. The results were consistent with the findings of other studies in that deeper pockets tended to harbour higher %s of spirochaetes and motile organisms. The same overlap between all the parameters in general and between spirochaetes and pocket depth in particular as existed in our previous study was demonstrably evident. 8% of shallow pockets had spirochaete counts in excess of 20% and 79% of deep pockets had spirochaete counts of less than 20, 18% having no demonstrable spirochaetes. These results are consistent with those of our previous study and with the findings of Evian et al. that even in pockets of the order of 7 mm, the proportions of spirochaetes found varies from what may be expected at healthy sites to what may be expected at diseased sites.
