| Time and duration of eruption of first and second permanent molars: a longitudinal investigation. | |
| | |
MedLine Citation:
|
PMID: 14667005 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVE: The aim of this study was to investigate the variation in (i) the time (age) of eruption and (ii) the duration of the eruption of first (M1) and second (M2) permanent molar teeth. Finally, the study also provides data about the association between time of eruption of the first of the M1s and the first of the M2s. METHODS: The study was carried out in Nexö Public Dental Health Service, Denmark. All children who, in a period of 12 months, had the first of their M1s or M2s recorded as erupted and the occlusal surface still partly covered by gingiva formed the study groups (N = 69 and 112 children, respectively). The continued eruption of all four molar teeth was recorded at recall intervals not exceeding 4 months until functional occlusion was obtained. RESULTS: First permanent molars: eruption time--girls: from the age of 5 years and 3 months to 7 years and 8 months (mean 6.1 years); boys: from 5 years and 2 months to 7 years and 10 months (mean 6.3 years). The duration of eruption--girls: from 5 to 32 months (mean 15.4 months); boys: from 7 to 28 months (mean 15.0). Second permanent molars: eruption time--girls: from the age of 8 years and 11 months to 14 years and 4 months (mean 11.3 years); boys: from 9 years and 11 months to 13 years and 11 months (mean 12.0 years). The duration of eruption--girls: from 12 to 44 months (mean 27.1 months); boys: from 9 to 45 months (mean 27.9 months). No correlation was found between the time of eruption and the duration of eruption of M1 or M2. There was a strong positive association between the time of eruption of the M1s and the M2s (r(s) = 0.81). CONCLUSIONS: A tremendous variation was found in time of eruption and in duration of eruption of permanent molars. This variation highlights the importance of individualizing caries preventive strategies for children. |
| | |
Authors:
|
Kim Rud Ekstrand; Jette Christiansen; Mauri Erik Christian Christiansen |
Related Documents
:
|
18837755 - Changes in patient evaluation of completed orthodontic esthetics after dental bleaching. 15898385 - Skeletal, dental and soft-tissue changes induced by the jasper jumper appliance in late... 12067135 - Clinical investigation of second mesiobuccal canals in endodontically treated and retre... 20578855 - Posterior occlusion changes with a hawley vs perfector and hawley retainer. a follow-up... 12704585 - Other immunosuppressive agents for focal segmental glomerulosclerosis. 12176945 - Twelve versus six months of clopidogrel to reduce major cardiac events in patients unde... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Community dentistry and oral epidemiology Volume: 31 ISSN: 0301-5661 ISO Abbreviation: Community Dent Oral Epidemiol Publication Date: 2003 Oct |
Date Detail:
|
Created Date: 2003-12-11 Completed Date: 2004-01-22 Revised Date: 2009-01-29 |
Medline Journal Info:
|
Nlm Unique ID: 0410263 Medline TA: Community Dent Oral Epidemiol Country: Denmark |
Other Details:
|
Languages: eng Pagination: 344-50 Citation Subset: D; IM |
Affiliation:
|
Department of Cariology and Endodontics, Dental Faculty, University of Copenhagen, Denmark. kim@odont.ku.dk |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Age Factors Child Child, Preschool Denmark Dental Occlusion Female Follow-Up Studies Humans Longitudinal Studies Male Molar / physiology* Regression Analysis Sex Factors Statistics, Nonparametric Time Factors Tooth Eruption / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Agreement between mothers and children aged 11-14 years in rating child oral health-related quality ...
Next Document: Relationship of dental status, sociodemographic status, and oral symptoms to perceived need for dent...