Survival of Enterococcus faecalis in root canals ex vivo

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72532/1/j.1365-2591.2005.01009.x.pd

Application of Expanded Alkire and Foster Multidimensional Poverty Index to Nigeria

An improved Alkire and Foster Multidimensional Poverty Index (MDPI) with 20 indicators clustered into seven dimensions, namely, Social Security, Water and Sanitation, Living Standard, Employment and Income, Health, Nutrition, and Education was developed and implemented with ‘mdpi function’ deployed in R Programming Language. The function computes MDPI along with useful associated measures at sub-national or context-specific levels. It was applied to data collected from 1614 respondents from 13 selected Nigerian states and the results compare favourably with existing studies. From the results obtained, the national MDPI is 0.418 but computing MDPI at National, sub-national or context-specific levels does not always give the same trend. Also, the results further reveal that states in Northern Nigeria (0.420) are more multidimensionally deprived in most of the dimensions although there are instances where states in the South (0.415) also show severe deprivation despite their level of development. In line with the findings, it is recommended that UNDP should implement this new MDPI strategy to ensure that every sector of the society is covered by development interventions. The interventions should be region and context-specific, addressing the North’s educational and employment deprivation and the South’s urban living and social protection deficiencies as well as sex, gender and religious disparities in deprivation

Pulp Capping with Bioglass® and Autologous Demineralized Dentin in Miniature Swine

The purpose of this study was to compare the responses of mechanically exposed dental pulps which had been capped with three dissimilar materials: a bioactive ceramic (Bioglass®), autologous demineralized dentin matrix (DDM), and a calcium hydroxide product (Life®), with Teflon® discs as controls. Mechanical dental pulp exposures were made after preparation of deep buccal Class V cavities in 48 teeth in four miniature swine. The exposures were capped and the cavity preparations restored with zinc oxide-eugenol (IRM) cement. The animals were killed after 90 days, the coronal 2/3 of the teeth removed, and sections prepared for either histological or microradiographic examination. The pulpal inflammatory reactions and the degree of reparative dentin formation were assessed from demineralized serial sections. A qualitative assessment of the degree of mineralization of the reparative dentin was made from microradiographs of undecalcified sections. The observations suggest that reparative dentin formation occurs under a variety of pulp-capping materials, but the structure of the reparative dentin varies with the material and the condition of the underlying pulp. </jats:p

Predominant microflora associated with human dental periapical abscesses

The microflora of periapical abscesses of teeth free of periodontal disease was studied. Permucosal aspiration of abscess contents and anaerobic cultural, microscopic, and biochemical techniques indicated a mixed but somewhat specific and relatively limited facultative and obligate anaerobic flora with Fusobacterium nucleatum and Streptococcus mitis as a frequent pair.</jats:p