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A possible association between preterm birth and early periodontitis: Pilot study

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Radnai M, Gorzó I, Nagy E, Urbán E, Novák T, Pál A: A possible association between preterm birth and early periodontitis. Pilot study. J Clin Periodontol 2004; 31: 736–741. doi: 10.1111/j.1600-051X.2004.00564.x. © Blackwell Munksgaard, 2004. Abstract

According to many studies, generalised periodontitis can be a risk factor for preterm birth (PB). A case-control study was carried out to examine if early localised periodontitis could be a risk factor for adverse pregnancy outcome. Material and Methods:

Postpartum women without any systemic disease were included into the study. Similar numbers of patients belonged to the case (41) and to the control (44) groups. A PB case was defined if a patient had a threatening premature labour during pregnancy, preterm premature rupture of membranes, or spontaneous preterm labour, and/or the weight of the newborn was 2499 g. Control women had delivery after the 37th gestational week and the newborn's weight was 2500 g. Known risk factors like smoking, alcohol, drug consumption, socio-economic status and the periodontal status were recorded. Results:

A significant association was found between PB and early localised periodontitis of the patient with the following criterion having bleeding at 50% of the examined sites (6 at each tooth) and having at least at one site 4 mm probing depth (p=0.001). The odds ratio was 5.46 at the 95% confidence interval. The average weight of the newborns in the periodontitis group was less than in the control group, the difference is significant (p=0.047). Conclusion:

The results indicate that early localised periodontitis of the patient during pregnancy can be regarded as an important risk factor for PB.
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Keywords: adverse effects; newborn; periodontal disease; pregnancy; preterm birth; risk factors

Document Type: Research Article

Affiliations: 1: Department of Dentistry and Oral Surgery; 2: Institute of Clinical Microbiology and 3: Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Szeged, Szeged, Hungary

Publication date: September 1, 2004

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