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The effectiveness of completely and incompletely sealed first permanent molars on caries prevention

Lookup NU author(s): Dr Jana SuklanORCiD



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Fissure sealants are effective caries preventive measure. However, a dilemma has been expressed more than once, whether incompletely sealed fissures provides sufficient protection against caries. Dental examinations were performed in 88 children, aged 8 and then 4 years later at 12 years. All first permanent molars (FPMs), as diagnosed at the age of 8, were divided into three groups: nonsealed, incompletely and completely sealed. Four years later caries incidence and changes in presence and quality of fissure sealant were analyzed. At the age of 8 and 12 mean DMFT were 0.73 ± 1.24 and 3.48 ± 3.04, respectively. 71.59% of the 8‐year‐olds and 78.41% of the 12‐year‐olds had at least one sealed FPM. At the age of 8, 154 FPMs were completely sealed and 42 FPMs were incompletely sealed. Four years later, 81.17%, 71.43% and 69.4% of FPMs were healthy (sound or with noncavitated caries) in the baseline groups completely sealed, incompletely sealed and nonsealed FPMs, respectively. Incompletely sealed fissures were more susceptible to caries development than completely sealed fissures. It is important that incompletely sealed fissures are resealed as soon as possible.

Publication metadata

Author(s): Likar-Osterc L, Suklan J, Pavlic A

Publication type: Article

Publication status: Published

Journal: Clinical and Experimental Dental Research

Year: 2020

Volume: 6

Issue: 3

Pages: 363-372

Print publication date: 01/06/2020

Online publication date: 14/02/2020

Acceptance date: 27/12/2019

Date deposited: 24/02/2020

ISSN (electronic): 2057-4347

Publisher: Wiley-Blackwell Publishing Ltd


DOI: 10.1002/cre2.280

PubMed id: 32059088


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