A longitudinal study of time trends in the eruption of permanent teeth in Danish children

Parner, Erik Thorlund; Heidmann, J.; Væth, Michael; Poulsen, Sven

doi:10.1016/s0003-9969(01)00002-4

Cited by 61 publications

(63 citation statements)

References 8 publications

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“…These data are doubly censored: neither the exact date of tooth emergence nor the moment at which a caries lesion fulfi lled the clinical criteria for being diagnosed as caries is exactly known. As it has been demonstrated that in case of censored data a midpoint approach may lead to invalid inferences [Parner et al, 2001], we opted not to compute point estimates, but to enter timing of emergence and caries experience as interval-censored data in the analyses. Based on the clinical eruption stage at the moment of examination, the left side of the time interval during which the permanent fi rst molar had pierced the gums was approximated for every permanent fi rst molar: P1: [age at examination minus 0.25 year;age at examination]; P2: [age at examination minus 0.50 year;age at examination]; P3: [age at examination minus 1.00 year;age at examination]; P4: [5 years old;age at examination].…”

Section: Data Analysis Outcome Variablementioning

confidence: 99%

Effect of Caries Experience in Primary Molars on Cavity Formation in the Adjacent Permanent First Molar

et al. 2005

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This study sought to address the influence of a sound versus affected first and/or second deciduous molar on the incidence of visible caries experience in the adjacent permanent first molar. Clinical and questionnaire data were obtained from a 6-year prospective oral health screening project in Flanders, Belgium (Signal-Tandmobiel^® project), where 4,468 children (born in 1989) were examined annually during their primary school time. A multiple survival model allowing for dependent data with possible censoring was applied. The impact of timing of tooth emergence (determining the period at risk), gender, presence of sealants and reported oral hygiene habits was also considered. Cavity formation in permanent first molars was clearly influenced by the status of the adjacent primary molars;the effect of the second deciduous molar was most pronounced. Moreover, if both deciduous molars experienced caries and the child presented with poor oral hygiene, a peak in cavity formation of the permanent first molar 1–2 years after emergence was noticed. On the other hand, if a child presented with good oral hygiene, no peak was observed;caries risk increased slightly over time. No significant benefit from restoring primary molars could be demonstrated, possibly because of methodological limitations.

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Section: Data Analysis Outcome Variablementioning

confidence: 99%

Effect of Caries Experience in Primary Molars on Cavity Formation in the Adjacent Permanent First Molar

et al. 2005

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“…The collected data enabled the production of valid information about the presence of first permanent molars, according to the age cohorts defined in intervals of six months, separated into boys and girls. In certain studies, this information was produced from annual exams 11,12 . Using the data obtained in conjunction with the educational system, it is possible to estimate the number of children and emerged molars that require attention and surveillance, using specific measures which must be object of more in-depth studies.…”

Section: Discussionmentioning

confidence: 99%

“…In a different study 11 , which followed the same type of design, although with a much larger sample (more than 30,000 records of children from the public dental service of Denmark), emergence of all permanent teeth was described. Authors concluded that teeth emerge firstly in girls, rather than in boys -the difference varied between two to ten months, without a clear dependence on the age of tooth emergence or type of tooth.…”

Section: Discussionmentioning

confidence: 99%

Irrompimento do primeiro molar permanente em crianças de 5 e 6 anos de idade: implicações da análise longitudinal para prevenção da cárie oclusal

Frazão

2011

Rev. bras. epidemiol.

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O tempo de irrompimento dentário é essencial para o planejamento de medidas de prevenção da cárie oclusal. Com a ampliação do ensino fundamental de oito para nove anos de duração, um número maior de crianças entre cinco e seis anos de idade é incluído na primeira série do ensino fundamental. OBJETIVO: O objetivo foi estimar as tendências do irrompimento dos primeiros molares permanentes em meninos e meninas de 5 e 6 anos de idade. MÉTODOS: Em estudo longitudinal, espaços dentários de 497 crianças de 60 meses e mais de idade foram examinados quatro vezes por um dentista calibrado (kappa > 0,97) durante 18 meses. O primeiro molar permanente foi considerado irrompido quando qualquer parte de sua superfície podia ser tocada por uma sonda de ponta esférica. A idade dos participantes foi medida em meses. Intervalos para 95% de confiança dos valores de prevalência e incidência foram apurados conforme o sexo para três coortes etárias: 60,0 a 65,9; 66,0 a 71,9; 72,0 a 77,9 meses. A razão entre as taxas de incidência foi estimada por meio de análise de regressão de Poisson. RESULTADOS: A maioria das crianças entre 66,0 e 71,9 meses e entre 72,0 e 77,9 meses tem pelo menos um molar permanente irrompido. No grupo de 66,0 a 71,9 meses, de cada três crianças pelo menos uma apresentou os quatro primeiros molares permanentes irrompidos. CONCLUSÃO. As tendências de irrompimento observadas justificam a necessidade da adoção de medidas de vigilância e de proteção específica em relação à lesão de cárie oclusal.

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“…If the secular trend exists, correction of the reference standard that was developed using an affluent segment of more developed nations is significant for forensics, if the subject for which a dental age estimate is necessary is from a lower socioeconomic status in a developing country [72]. However, the other authors claimed that the level of tooth formation is not affected by secular trend, as it is predominantly determined by genetics, and less affected by environmental factors than other growth systems [73].…”

Section: Scoring Methodsmentioning

confidence: 99%

Defining Dental Age for Chronological Age Determination

Uzuner¹,

Kaygisiz²,

Darendeliler³

2018

Post Mortem Examination and Autopsy - Current Issues From Death to Laboratory Analysis

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Dental age assessment is one of the most reliable methods of chronological age estimation used for criminal, forensic and anthropologic purposes. Visual, radiographic, chemical and histological techniques can be used for dental age estimation. Visual method is based on the sequence of eruption of the teeth and morphological changes that are caused due to function such as attrition, changes in color that are indicators of aging. Radiographs of the dentition can be used to determine the stage of dental development of the teeth from initial mineralization of a tooth, crown formation to root apex maturation. Histological methods require the preparation of the tissues for detailed microscopic examination. The chemical analysis of dental hard tissues determines alterations in ion levels with age, whereas the histological and chemical methods are invasive methods requiring extraction/sectioning of the tooth. In this chapter, the different techniques and considered studies were overviewed in conjunction with their advantages and disadvantages. It needs to be taken into consideration that rather than restricting on one age estimation technique, using the other available techniques additionally and performing repetitive measurements may be beneficial for accurate age estimation.

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A longitudinal study of time trends in the eruption of permanent teeth in Danish children

Cited by 61 publications

References 8 publications

Effect of Caries Experience in Primary Molars on Cavity Formation in the Adjacent Permanent First Molar

Effect of Caries Experience in Primary Molars on Cavity Formation in the Adjacent Permanent First Molar

Irrompimento do primeiro molar permanente em crianças de 5 e 6 anos de idade: implicações da análise longitudinal para prevenção da cárie oclusal

Defining Dental Age for Chronological Age Determination

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