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Risk indicators for poor oral health in adolescents born extremely preterm.

Journal article
Authors Marianne Rythén
Aimon Niklasson
Ann Hellström
Magnus Hakeberg
Agneta Robertson
Published in Swedish dental journal
Volume 36
Issue 3
Pages 115-24
ISSN 0347-9994
Publication year 2012
Published at Institute of Odontology
Institute of Neuroscience and Physiology
Institute of Clinical Sciences, Department of Pediatrics
Institute of Odontology, Section 3
Pages 115-24
Language en
Keywords Adolescent, Case-Control Studies, Child, Dental Caries, epidemiology, Dental Enamel Hypoplasia, epidemiology, Dental Plaque, epidemiology, microbiology, Female, Gingivitis, epidemiology, Health Status Indicators, Hospitalization, Humans, Infant, Extremely Premature, Infant, Newborn, Infant, Premature, Diseases, epidemiology, Male, Oral Health, Oral Hygiene Index, Periodontal Index, Retrospective Studies, Risk Factors, Saliva, secretion, Streptococcus mutans, Sweden, epidemiology
Subject categories Health Sciences, Other Medical Sciences


Children born extremely preterm often suffer from medical complications that have been shown to affect their oral health as toddlers and school children.The aim of this study was to investigate oral health and possible risk indicators for poor oral health in adolescents born extremely preterm compared with a control group and relate the findings to medical diagnoses at the clinical examination. Also in the same groups, compare the frequency of mineralization disturbances and its relation to postnatal morbidity and treatments. The medical records postnatally,was noted in 45 extremely preterm infants with a gestational age (GA) of <29 weeks, at 12 - 16 years of age and in age and gender matched fullterm controls with 37-43 weeks GA. A dental clinical examination was performed including a salivary examination. Medical diagnoses were noted at the time of the survey. Data from the patient dental records at 3, 6, and 9 years of age was compiled. The findings were related to gestational age, birth weight, neonatal and postnatal medical diagnoses treatments and medical diagnoses at the clinical examination. The result showed that the prevalence of plaque, gingivitis and the occurrence of Streptococcus mutans were higher among adolescents born extremely preterm compared to matched controls, and the saliva secretion was lower in the extremely preterm infants. The frequency of caries did not differ between the groups. Mineralization disturbances were more frequent in the primary dentition and more severe in the permanent dentition among the children born extremely preterm. No association between dental pathology, neonatal and postnatal morbidity and treatments was found. In conclusion, adolescents born extremely preterm have an increased number of risk indicators for a poorer oral outcome compared with the controls and more severe mineralization disturbances. These findings may imply an increased vulnerability for poorer oral health later in life.

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