Effect Analysis of Fissure Sealing on Prevention of Dental Caries in Six-year-teeth

Objective. The present study aimed to assess dental status in 7–12-year-old Lithuanian children and to evaluate the extent and the efficiency of the Pit and Fissure Sealing in Permanent Molars program. Material and methods. This cross-sectional study was performed between September 2007 and May 2008. Children, aged 7–12 years, from secondary schools in five biggest cities of Lithuania were invited for the examination using a cluster random sampling method. The data for the present study were collected following the general principles for basic oral health surveys of the World Health Organization. Results. The prevalence of dental caries was 85.5%, 88.9%, and 70.6% in 7–8-, 9–10-, and 12-year olds, respectively. The prevalence of dental caries in permanent molars increased with age and became as high as 57.7% in 12-year-old children. The data showed that the mean number of sealed teeth depends on the county and ranged from 0.83 (1.31) to 1.45 (1.85) in 7–8-year olds, from 0.95 (1.29) to 2.54 (1.15) in 9–10-year olds, and from 0.26 to 2.13 (1.15) in 12-year olds. Conclusions. The prevalence and incidence of dental caries in 7–12-year-old Lithuanian children are high. Only half of all examined children have at least one sealed molar. The financial resources allocated for the Pit and Fissure Sealing in Permanent Molars program were used insufficiently; therefore, there is a need for systematic measures in order to improve the efficacy of the aforementioned program.

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Clinical and economic analysis of dental caries prevention using fluorine-containing sealants

Kazan medical journal ◽

10.17816/kmj2021-545 ◽

2021 ◽

Vol 102 (4) ◽

pp. 545-550

Author(s):

N I Shaymieva ◽

R Sh Khasanov ◽

V N Olesova

Keyword(s):

Dental Caries ◽

Economic Analysis ◽

P Value ◽

F Test ◽

Occlusal Surfaces ◽

Permanent Molars ◽

The Republic ◽

Fissure Sealing ◽

Sealant Retention ◽

First Permanent Molars

Aim. To conduct a clinical and economic analysis of the effectiveness of the program fissure sealing of first permanent molars with fluorine-containing sealants among schoolchildren of 78 years old in six cities of the Republic of Tatarstan. Methods. Between 2007 and 2011, dentists of six cities of the Republic of Tatarstan performed fissure sealing of permanent first molars using a fluorine-containing sealant in 24,394 schoolchildren aged 78 years according to the manufacturer's instruction. A clinical assessment of fluorine-containing sealant retention during tooth eruption was carried out annually, the results were submitted to the organizational and methodological office of the Republican Dental Clinic. The analysis of the complex of signs that have a normal distribution and characterize four degrees of sealant retention on the occlusal surfaces of teeth in children from several cities was carried out by using one-way ANOVA (analysis of variance) with the calculation of a p-value and F-test (according to Ronald Fischer). Statistical data processing was performed using the Microsoft Office Excel 2017 software. The economic analysis was performed by using mathematical modelling. Results. The use of sealants at the age of 78 years ensured the complete safety of the sealant in 80% of children; the development of dental caries in 1.7%; complete and partial loss 14.3%; disturbance of fit without the development of caries in 4.1% of cases [р=0.0095 (0.01); f-test 3.09839]. Clinical and economic analysis using a mathematical hypothesis in sealing with a fluorine-containing composite sealant determined the preservation of the conditionally spent funds for the treatment of 80% of healthy teeth for 4 years of the project in the amount of 6,001,177 rubles. Notional saved costs for the treatment of one tooth with a sealant amounted to 23.7 rubles. Conclusion. Implementation of the program fissure sealing of first permanent molars with fluorine-containing sealants among schoolchildren of 78 years old allows a total of 98.3% of healthy teeth to be preserved and notionally saved costs of sealing fissures to be reduced.

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A Study on the Characteristic of Treatment and Dental Caries Occurrence after the Insurance Benefit about the Pit and Fissure Sealing

Journal of the Korea Academia-Industrial cooperation Society ◽

10.5762/kais.2016.17.8.654 ◽

2016 ◽

Vol 17 (8) ◽

pp. 654-661

Author(s):

Soon-Im Sung ◽

Chong Hyung Lee ◽

Arma Park ◽

Kwang-Hwan Kim

Keyword(s):

Dental Caries ◽

Insurance Benefit ◽

Fissure Sealing

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Cell Wall Ultrastructure in Three Strains of a Cariogenic Streptococcus

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100065730 ◽

1971 ◽

Vol 29 ◽

pp. 338-339

Author(s):

M. J. Kramer ◽

Alan L. Coykendall

Keyword(s):

Cell Wall ◽

Dental Caries ◽

Streptococcus Mutans ◽

Microscopic Study ◽

Electron Microscopic Study ◽

Genetic Heterogeneity ◽

Morphological Characteristics ◽

Electron Microscopic ◽

Dna Reassociation ◽

Wall Ultrastructure

During the almost 50 years since Streptococcus mutans was first suggested as a factor in the etiology of dental caries, a multitude of studies have confirmed the cariogenic potential of this organism. Streptococci have been isolated from human and animal caries on numerous occasions and, with few exceptions, they are not typable by the Lancefield technique but are relatively homogeneous in their biochemical reactions. An analysis of the guanine-cytosine (G-C) composition of the DNA from strains K-1-R, NCTC 10449, and FA-1 by one of us (ALC) revealed significant differences and DNA-DNA reassociation experiments indicated that genetic heterogeneity existed among the three strains. The present electron microscopic study had as its objective the elucidation of any distinguishing morphological characteristics which might further characterize the respective strains.

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