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Dental plaque and caries on occlusal surfaces of first permanent molars in relation to stage of eruption

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Carvalho, Joana Christina [UCL] Ekstrand, Kim Rud Thylstrup, Anders

The occlusal surfaces of partly and fully erupted first right permanent molars were examined with respect to the occurrence and distribution of plaque and dental caries in a group of 57 six- to eight-year-old children. The children were classified into four groups ranging from one tooth partially erupted to full occlusion. Occlusal plaque was recorded at two levels of examination: (1) visible plaque and (2) detailed mapping by means of a plaque detector system. Dental caries was recorded after professional cleaning. The recording of plaque was repeated after 48 hr without oral hygiene. The findings showed a significant reduction in the easily detectable plaque in fully erupted teeth, compared with the three groups representing partly erupted teeth. The detailed mapping of plaque showed a clear pattern of preferential locations related to the macromorphology of the occlusal surfaces, and revealed reduction in the frequency of thick plaque accumulation in the fully erupted teeth. The proportion of active lesions was reduced in fully erupted teeth, and arrested lesions were mainly observed in the same group. This indicated that erupting teeth are more likely to develop dental caries, due to favorable conditions for plaque accumulation. Functional usage of teeth in addition to improved access for toothbrushing promoted arrestment of lesions initiated during eruption.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 1989
Language Anglais
Journal information "Journal of Dental Research" - Vol. 68, no.5, p. 773-779 (1989)
Peer reviewed yes
Publisher Sage Publications, Inc. ((United States) Thousand Oaks, CA)
issn 0022-0345
e-issn 1544-0591
Publication status Publié
Affiliations UCL - MD/MDEN - Ecole de médecine dentaire et de stomatologie
UCL - (SLuc) Service de dentisterie conservatrice et d'endodontie
MESH Subject Child ; Dental Caries ; Dental Occlusion ; Dental Plaque ; Humans ; Molar ; Time Factors ; Tooth Eruption
Links
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Bibliographic reference Carvalho, Joana Christina ; Ekstrand, Kim Rud ; Thylstrup, Anders. Dental plaque and caries on occlusal surfaces of first permanent molars in relation to stage of eruption. In: Journal of Dental Research, Vol. 68, no.5, p. 773-779 (1989)
Permanent URL http://hdl.handle.net/2078.1/180707