title: One-year evaluation of inactive occlusal enamel lesions in children and adolescents.
abstract: OBJECTIVE
  The aims of this study were to compare caries incidence and progression on sound occlusal surfaces and on surfaces presenting inactive enamel lesions in children and adolescents over 1 year and to estimate the risk of caries incidence and progression on these surfaces.
  
  
  METHODS
  This prospective cohort study followed 200 7-15-year-old caries-inactive schoolchildren over 1 year. Stage of eruption, occlusal plaque, and occlusal caries were recorded on permanent molars. Statistical analysis was performed using generalized estimating equations with a logistic link function.
  
  
  RESULTS
  Twenty-two children (11 %) presented "caries progression" (at least one active lesion on molar teeth). At site level, no difference was observed in caries incidence and progression between sites classified either sound (2.6 %) or with inactive enamel lesion (3.9 %) at the baseline examination (χ (2) test, p = 0.48). Adjusted for plaque, stage of eruption, type of molar and dental arch, inactive enamel lesions presented a similar risk for caries progression than sound occlusal surfaces (OR = 0.98, 95 % CI = 0.40-2.38).
  
  
  CONCLUSIONS
  Within the limitations of this study, no difference was observed in caries incidence, progression, and risk on sound occlusal sites in comparison with sites presenting inactive enamel lesions.
  
  
  CONCLUSIONS
  Occlusal surfaces harboring inactive caries lesions did not require additional attention than the one normally given to sound occlusal surfaces over a 1-year period.
authors.affiliation: Department of Stomatology, School of Dentistry, Federal University of Santa Maria, Santa Maria, Brazil. jezenkner@gmail.com.|School of Dentistry, Federal University of Santa Maria, Rua Floriano Peixoto, 1184, Centro, 97015-370, Brazil. jezenkner@gmail.com.
authors.forename: J E A
authors.initials: JE
authors.lastname: Zenkner
authors.affiliation: Faculty of Medicine and Dentistry, Catholic University of Louvain, Louvain, Belgium.
authors.forename: J C
authors.initials: JC
authors.lastname: Carvalho
authors.affiliation: Department of Social Medicine, Faculty of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: M B
authors.initials: MB
authors.lastname: Wagner
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, Federal University of Santa Maria, Santa Maria, Brazil.
authors.forename: L S
authors.initials: LS
authors.lastname: Alves
authors.affiliation: Department of Surgery and Orthopedics, Faculty of Odontology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: R S
authors.initials: RS
authors.lastname: de Oliveira
authors.affiliation: Department of Stomatology, School of Dentistry, Federal University of Santa Maria, Santa Maria, Brazil.
authors.forename: R O
authors.initials: RO
authors.lastname: Rocha
authors.affiliation: Department of Social and Preventive Dentistry, Faculty of Odontology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Maltz
mesh_terms: D000293:Adolescent; D001938:Brazil / Q000453:epidemiology; D002648:Child; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology / Q000473:pathology*; D003743:Dental Enamel / Q000473:pathology*; D003774:Dental Plaque Index; D018450:Disease Progression; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008963:Molar; D011446:Prospective Studies; D012307:Risk Factors
keywords: Caries progression; Caries risk; Clinical study; Inactive caries lesions; Occlusal surfaces; Permanent molars