Oral health status among hospitalized patients.

AIM: To investigate into oral health status and its association with health status in hospitalized patients. METHODS: A total of 82 patients were examined and 49 (59.7%) patients were men. The patients answered a survey and oral examinations to detect the number of teeth, oral hygiene index, prostheses hygiene, oral lesions, caries, dental plaque index (DPI), gingival inflammation index (GI), gingival bleeding index, periodontitis and periodontal index. RESULTS: Oral hygiene was associated with age, but it was not related to physical disability. Difficulty eating was mainly associated with age and tooth loss. All full and partially dentate patients presented dental plaque, 38 (69%) poor oral hygiene, 58 (98.1%) gingival inflammation, 41 (74.5%) periodontal disease and 33 (60%) caries. Oral lesions were detected in 30 (36.5%) and candidiasis (n = 16, 19.6%) was the most frequent mucous lesion. Caries were associated with smoking and poor oral hygiene. Hospital length of stay and age were associated with increased DPI and GI. CONCLUSIONS: The majority of hospitalized patients did not present satisfactory oral hygiene. Caries and periodontal diseases are associated with health behaviours. Increased time length at hospital could increase gingival inflammation and dental plaque accumulation.

Análise do volume do tecido ósseo neoformado na superfície de implantes de titânio Cp em coelhos utilizando calceína e alizarina como marcadores em microscopia confocal de varredura à laser - Um estudo experimental / Analysis of the evolume of the bony fabric neoformated in the surface of you implant of titanium Cp in rabbits using calceína and alizarina as markers in confocal microscopie of sweeping to laser - an experimental study

O objetivo dessa pesquisa foi analisar através da microscopia confocal à laser o volume total de tecido ósseo que ocorre com a neoformação nas 4 primeiras roscas de implantes de Ti cp, no período de 3 meses. A visualização de tecido ósseo foi adquirida histologicamente por marcadores fluorescentes celulares, tetraciclina, alizarina e calceína, injetados intramuscularmente nos dias 0-7,14-21,28-35, respectivamente, repetindo a calceína semanalmente até 90 dias. Dez coelhos albinos machos receberam cada um 2 implantes de titânio na tíbia direita, 2mm abaixo da articulação (fíbula-tíbia). Vinte implantes foram inseridos, sendo 10 tratados com ácido hidrofluorídico 3 por cento e nítrico 30 por cento (grupo teste) e 10 sem tratamento superficial (grupo controle), sendo o modelo teste colocado primeiro, e aproximadamente 7 mm abaixo deste, o modelo do grupo controle. Os achados histológicos sugeriram que a interface implante/tecido ósseo era estável, não apresentando diferença estatisticamente significante entre os grupos estudados. Verificou uma forte tendência das superficies formarem mais óssos entre o 14 e o 28 dia, tempo no qual foi aplicada a alizarina resultando nos implantes teste P=0,004 e nos implantes teste p=0,002. Quando observadas as áreas das roscas iniciais, constatou-se uma maior proliferação óssea adjacente à porção medular do tecido (R2) com p<0,05, onde, nos implantes controle resultou em P=0,014 e em implantes teste P=0,010

[Comparative analysis of conventional dental floss and alternative materials]. / Análise comparativa entre a fita dental convencional e materiais alternativos.

The interproximal plaque-removing effect of three different materials (classic dental floss, rafia floss and indian floss) was tested in a group of 80 males (18 years-old). After two weeks all the materials had the same efficacy in removing the bacterial plaque, with significant reduction in interproximal plaque index. According to an opinion inquiry the rafia floss was the most comfortable material to use and has the lowest cost as well.

[Photoelasticity in dentistry. 2. Influence of the supporting apical base]. / A fotoelasticidade em odontologia. II. Influência da base apical de sustentação.

Thirty photoelastic dental-periodontal patterns were prepared according to the following criteria: ten with cilindrical shaped roots (series I), ten with conical shaped roots from apical do cervical (series II), ten with conical shaped roots from cervical to apical (series III), all of them having the same superficial area and apical basis. The photoelastic analysis showed that the main factor in determining the force distribution is the apical basis and that the conical roots from cervical to apical (series III) elicit a lateral compression on the periodontal support, which influences the magnitude of the force that is necessary to the formation of the some photoelastic deformations produced in the other series. The spectral distribution of the internal stress in the patterns of the series III showed the formations of incomplete fringes along with the lateral aspects of the roots. It was concluded that to make a comparison of the periodontal distribution of occlusal forces, it is of paramount importance the standardization of all steps concerning the construction of the patterns, the measurement of the photoelastic blocks and mainly the apical area of the root, which is the main determinant factor of the qualitative and quantitative results produced by the photoelastic analysis.

Periosteal activation and root demineralization associated with the horizontal sliding flap.

A sliding flap technique for covering denuded root associated with periosteal activation and root demineralization "in situ" was described. The possible biological mechanisms involved were discussed. Two clinical cases were presented illustrating the successful results that can be achieved.