The Journal of the American Dental Association
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The aim of this study was to assess the correlates of income and income inequality with dental caries in a sample of all countries, as well as in rich countries alone. ⋯ Among rich countries, income inequality is a stronger determinant of childhood dental caries than is absolute income.
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Randomized Controlled Trial Comparative Study
A comparison of the local anesthetic efficacy of the extraoral versus the intraoral infraorbital nerve block.
The efficacy of the extraoral infraorbital nerve block has not been studied sufficiently to ensure its appropriate clinical use. To compare the local anesthetic efficacy of the extraoral versus the intraoral infraorbital nerve block, the authors conducted a prospective, randomized crossover study. ⋯ Both nerve blocks would be ineffective in the central and lateral incisors. Both nerve blocks would be somewhat successful in the canine and premolars but not in the first molar.