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1.
Pesqui. bras. odontopediatria clín. integr ; 18(1): 4242, 15/01/2018. tab, graf
Artigo em Inglês | LILACS, BBO | ID: biblio-967064

RESUMO

Objective: To investigate the effect of Arabic coffee on bleached teeth in comparison to black coffee. Material and Methods: Forty teeth (sound maxillary or mandibular premolars with no carious lesions) were randomly selected into 4 groups (A, B, C and D). One group (A) did not receive bleaching and was incubated in saline. The second group (B) was bleached and then incubated in saline. The last two groups were bleached and were immersed in either Arabic coffee (C) or black coffee (D). Color recording of the samples was always carried out as near to their mid-buccal surfaces as possible using VITA Easyshade Advance System. Color measurements were carried out using a digital spectrophotometer at baseline and after short-term and long-term immersion. Data were subjected to two way ANOVA and T-test. The level of significance was set at was set at 0.05. Results: Results show that immersion in Arabic coffee resulted only in significant reduction in the b* color value upon long-term immersion (i.e. a reduction in the yellow hue). Black coffee on the other hand resulted in significant: reduction in lightness, increased red tint and increased yellow hue altogether. Conclusion: The use of Arabic coffee did not deteriorate color, with the only significant change being the reduction of yellowish hue. Arabic coffee could be an alternative to black coffee after bleaching.


Assuntos
Arábia Saudita , Espectrofotometria/métodos , Clareamento Dental , Técnicas In Vitro/métodos , Café/efeitos adversos , Análise de Variância
2.
Int. j. morphol ; 34(1): 310-319, Mar. 2016. ilus
Artigo em Inglês | LILACS | ID: lil-780511

RESUMO

Accurate information regarding the vertical location and appearance of the mental foramen, and the presence of accessory foramina, can have clinical significance, such as reducing complications that may occur during many oral surgical procedures involving the mental area. Geographic variations were reported in these variables. The aim was to evaluate the above-mentioned variables in an Iraqi sample. Five hundred eighteen panoramic radiographs of a random Iraqi sample (257 males, 261 females, average age= 46.5 years) were evaluated with regard to the above-mentioned variables, as well as the symmetry of the foramen regarding these variables. The area below the apices of mandibular premolars, and the continuous type were the most frequent vertical location and appearance of the mental foramen, respectively. Age advancement was found to be associated with an increase in the frequency of more inferior positioning and continuous appearance. The vertical position and appearance were asymmetrical in 16.2 % and 20.1 % of cases, respectively. Symmetry in the vertical location was statistically significant between sexes (P= 0.035), and young and old ages (P= 0.000). Symmetry in the appearance was found statistically significant (P= 0.025) only between the two age groups. Accessory foramina were recorded in 7.3 % of cases. The most common vertical location and appearance of the mental foramen on panoramic radiographs in this group are below the apices of mandibular premolars, and continuous type, respectively. This is in consistence with the findings of previous studies on other populations. The mental foramen usually has symmetrical vertical location and appearance. Accessory foramina are recorded in a percentage lower than that recently reported in some regional countries.


La información precisa acerca de la localización vertical, apariencia del foramen mental y la presencia de forámenes accesorios, puede tener importancia clínica, como la reducción de las complicaciones que pueden ocurrir durante muchos procedimientos quirúrgicos orales relacionados con el mentón. Las variaciones geográficas fueron reportadas en estas variables. El objetivo fue evaluar las variables anteriormente mencionadas en una muestra iraquí. Fueron evaluadas 518 radiografías panorámicas de una muestra aleatoria de Irak (257 varones, 261 mujeres, edad media = 46,5 años) con respecto a las variables antes mencionadas, así como la simetría del foramen con respecto a estas variables. El área por debajo de los ápices de los premolares mandibulares y el tipo continuo, fueron la localización vertical y apariencia del foramen mental más frecuentes, respectivamente. La edad avanzada se asoció con un aumento en la frecuencia de posicionamiento más inferior y de apariencia continua. La localización vertical y la apariencia fueron asimétricas en 16,2 % y 20,1 % de los casos, respectivamente. La simetría en la localización vertical fue estadísticamente significativa entre sexos (p= 0,035), y entre jóvenes y viejos (P= 0,000). La simetría en apariencia sólo fue estadísticamente significativa (p= 0,025) entre los dos grupos de edad. Se registró presencia de forámenes accesorios en un 7,3 % de los casos. La localización vertical del foramen mental más común en las radiografías panorámicas de este grupo están por debajo de los ápices de los premolares mandibulares, y respecto a la apariencia, el tipo continuo fue el más común. Esto está en coherencia con los resultados de estudios anteriores en otras poblaciones. Los forámenes mentales tienen una localización vertical y apariencia que suelen ser simétricas. Los forámenes accesorios se registran en un porcentaje inferior al informado recientemente en algunos países de la región.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Variação Anatômica , Mandíbula/anatomia & histologia , Mandíbula/diagnóstico por imagem , Iraque , Radiografia Panorâmica , Distribuição por Sexo
3.
Int. j. morphol ; 33(1): 149-157, Mar. 2015. ilus
Artigo em Inglês | LILACS | ID: lil-743778

RESUMO

Accurate information regarding the horizontal location and shape of the mental foramen can have clinical significance, such as reducing complications that may occur during maxillofacial surgical procedures involving the mental area. Geographic variations were reported in these variables. The aim was to study the horizontal position and shape of the mental foramen, as seen on panoramic radiographs of an Iraqi sample, to assess difference in these variables between sexes and age groups, and to assess symmetry of the mental foramen. 518 panoramic radiographs of a random Iraqi sample (257 males, 261 females, average age=46.5 years) were evaluated with regard to the horizontal location, shape and symmetry of the mental foramina. The area between the long axes of the two mandibular premolars, and the round type were the most frequent horizontal location and shape of mental foramen, respectively. Age advancement was found to be associated with an increase in the frequency of more posterior positioning and irregular shape. The horizontal position and shape were asymmetrical in 21.6% and 31.6% of cases, respectively. The Symmetry in horizontal location and shape of mental foramina were found statistically significant between sexes (P=0.041), and between young and old age groups (P=0.001), respectively. The most common horizontal location and shape of the mental foramen on panoramic radiographs in this group are between the two premolars, and the round type, respectively. This is in consistence with the findings of previous studies on other populations. The mental foramina have usually symmetrical horizontal locations and shapes.


Información precisa sobre la ubicación horizontal y forma del foramen mental puede tener importancia clínica en la reducción de complicaciones durante procedimientos quirúrgicos maxilofaciales que involucran el área mental. Fueron reportadas variaciones geográficas en relación a estas variables. El objetivo fue estudiar la posición horizontal y forma del foramen mental, a partir de 518 radiografías panorámicas de una muestra aleatoria en sujetos de Irak (257 varones, 261 mujeres; edad media= 46,5 años), quienes fueron evaluados con respecto a la posición horizontal, forma y la simetría de los forámenes mentales. En individuos de edad avanzada se encontró una asociación con un aumento en la frecuencia de un posicionamiento posterior y con forma irregular. La posición horizontal y forma del foramen fueron asimétricos en 21,6% y 31,6% de los casos, respectivamente. La diferencia hallada en relación a la simetría en posición horizontal y forma de los forámenes mentales fue estadísticamente significativa entre sexos (p=0,041), y entre los grupos de edad jóvenes y mayores (P=0,001), respectivamente. Se encontró con mayor frecuencia la posición horizontal entre los ejes longitudinales de los dos premolares mandibulares, y la forma circular, en relación a la posición antero-posterior y forma del foramen, respectivamente. Estos fueron resultados similares a estudios anteriores sobre otras poblaciones. Los forámenes mentales son simétricos, respecto a su ubicación horizontal y su forma.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Mandíbula/anatomia & histologia , Mandíbula/diagnóstico por imagem , Radiografia Panorâmica , Distribuição por Idade e Sexo , Iraque , Características de Residência
4.
Br J Med Med Res ; 2013 Oct-Dec; 3(4): 2042-2053
Artigo em Inglês | IMSEAR | ID: sea-163089

RESUMO

Aims: Narghile smoking may be associated with a number of unconventional practices that need to be thoroughly investigated for their potential health problems. We investigated the prevalence and pattern of unconventional practices related to narghile smoking including the use of medications, fruits, and alcohol, among a sample of café patrons. Place and Duration of Study: A few cafés at Amman, Jordan during July 2011. Methodology: This was a cross-sectional survey whereby a pre-prepared questionnaire was distributed to a sample of café patrons. Questionnaire included demographic information, history of tobacco use, pattern of narghile smoking including unconventional practices and lastly health awareness and attitudes towards cessation. Results: Out of 96 café patrons, 61 (63.5%) agreed to participate with 42 males and 19 females. Age range was 16-64 years (mean=27.5±9.2). About 47.5% used fruits as the narghile head and 16.4% used fruits as water tank. Equal proportions (9.5%) of the sample added either milk/soft drinks to tank or added drugs to tobacco mix or the liquid contents of the tank. Conclusion: Narghile smoking may be associated with unconventional practices like the use of psychoactive drugs and alcohol. Further research is needed to explore the reasons behind this trend, and the associated potential health hazards.

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