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Potential oral or head and neck findings of bulimia and anorexia include dental erosion, xerostomia, increased rate of caries, and sialadenosis. Vomiting exposes teeth to acidic gastric contents, which leads to enamel erosion. The erosion pattern tends to involve the lingual surfaces of the maxillary anterior teeth ( Figure 12 ) and, in severe cases, the buccal surfaces of the posterior mandibular teeth. 39 Patients may have dental sensitivity to cold or sweet stimuli. Xerostomia may be caused by medications often used by patients with bulimia or anorexia (., antidepressants, diuretics, laxatives), as well as by vomiting and excessive exercise. 40 Because the buffering and cleansing properties of saliva are important for prevention of tooth decay, xerostomia leads to increased caries risk. Additionally, sialadenosis affects approximately 25 percent of patients with bulimia; bilateral parotid enlargement is the most common presentation. 41
There have been no randomized trials examining the effect of hydrocortisone given after the first week of life or used to treat infants with prolonged ventilator dependence. One retrospective cohort study compared infants who required assisted ventilation and oxygen after the first one to two weeks of age and received hydrocortisone with a group of healthier infants who did not receive hydrocortisone.  Infants treated with hydrocortisone experienced decreasing oxygen requirements and were successfully weaned from assisted ventilation. After seven days of treatment, there were no differences in oxygen requirements between the two groups. On follow-up, there were no differences in head circumference, neurological outcome, psychomotor development or school performance. Magnetic resonance imaging performed at eight years of age on a similar cohort of infants treated with hydrocortisone showed that although, overall, children born preterm had significantly reduced grey matter volumes compared to term children, there were no differences in the intracranial volumes, grey matter volumes or white matter volumes between children who did and did not receive hydrocortisone for treatment of CLD.  There were also no differences in neurocognitive outcomes, assessed using the Wechsler Intelligence Scales for Children.