Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/97663
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Type: Journal article
Title: Caries experience and distribution by tooth surfaces in primary molars in the pre-school child population of Lodz, Poland
Author: Bruzda-Zwiech, A.
Filipińska, R.
Borowska-Strugińska, B.
Żądzińska, E.
Wochna-Sobańska, M.
Citation: Oral health & Preventive Dentistry, 2015; 13(6):557-566
Publisher: Quintessence Publishing Group
Issue Date: 2015
ISSN: 1602-1622
1757-9996
Statement of
Responsibility: 
Agnieszka Bruzda-Zwiech, Renata Filipińska, Beata Borowska-Strugińska, Elżbieta Żądzińska, Magdalena Wochna-Sobańska
Abstract: To evaluate caries experience in primary molars as well as the differences in caries prevalence and caries lesion location on individual tooth surfaces between first and second primary molars in pre-school children.A cross-sectional study was conducted on 307 children, aged 3 to 5 years, from randomly chosen kindergartens in Lodz, Poland. Caries experience was scored according to WHO recommendations. The caries intensity (dmft, dmfts) for first and second primary molars was calculated. In addition, the percentage of particular surfaces with caries was counted for each molar separately.The mean dmft for primary molars was 1.84 (dmfts = 2.47) and dmft > 0 was seen in 53.09% of the study subjects. While in the entire examined population dmft and dmfts for first and second molars did not differ significantly, in 5-year-old children, the left mandibular first molar was associated with a higher caries intensity than the left mandibular second molar (dmfts = 0.465 vs 0.344, Z = -1.98, p = 0.04). However, in 5-year-olds, higher caries occurrence was seen for occlusal surfaces of the tooth 85 than 84 (33.62% vs 20.68%, χ2 = 4.09, p = 0.03). The distal surface was more frequently affected in first molars than in second molars in children aged 4 (85 vs 84, χ2 = 17.1, p < 0.001; 75 vs 74, χ2 = 11.5, p = 0.007, 55 vs 54; χ2 = 4.6, p = 0.03) and 5 years (54 vs 55, χ2 = 20.09; 64 vs 65, χ2 = 16.75; 74 vs 75, χ2 = 21.6; 84 vs 85, χ2 = 31.07; all comparisons p < 0.001). In contrast, the mesial surfaces of mandibular second molars demonstrated more caries than the homologous surfaces of first molars, both in 4-year-olds (85 vs 84, χ2 = 6.15, p = 0.01) and 5-year-olds (75 vs 74, χ2 = 3.9, p = 0.04).In 5-year-old children, caries of occlusal and mesial surfaces was more common in primary second molars. However, distal surfaces were affected more in first than second molars.
Keywords: Mandible; Molar; Tooth, Deciduous; Tooth Crown; Tooth Root; Humans; Tooth Loss; Dental Caries; DMF Index; Prevalence; Cohort Studies; Cross-Sectional Studies; Dental Restoration, Permanent; Age Factors; Child, Preschool; Poland; Female; Male
Rights: Copyright by Quintessence. Alll rights reserved.
RMID: 0030031417
DOI: 10.3290/j.ohpd.a34371
Appears in Collections:Medicine publications

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