• The korean journal of orthodontics
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• v.43 no.1
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• pp.35-41
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• 2013

Objective: To assess the prevalence of malocclusion and its relationship with dental caries among school children in southern India. Methods: This cross-sectional study included 1,800 students aged 11 - 15 years whose Dental Aesthetic Index (DAI) and dentition status were recorded and analyzed. The chi-square test, ANOVA, and Spearman's correlation tests were carried out. Results: The mean DAI score ${\pm}$ the standard deviation was $18.61{\pm}6.1$. Approximately 85% of the students (83.0% males, 86.8% females) had DAI scores of < 26 and were classified as not requiring orthodontic treatment. One tenth of the sample had mean DAI scores between 26 - 30 (indicating definite malocclusion and elective treatment), while about 3% had mean scores between 31 - 35 (indicating severe malocclusion and treatment desirability). Only 29 children (1.6%; 16 boys, 13 girls) had a DAI score of > 35, which suggested very severe or handicapping malocclusion requiring mandatory treatment. The mean decayed, missing, filled teeth (DMFT) was $2.28{\pm}1.47$. A DMFT of > 0 was observed in 91.8% of the study subjects. Children with a DAI score of > 35 were found to have significantly (p < 0.001) higher caries experience as compared to other children. Moreover, the DAI scores showed a significant correlation with the mean DMFT scores (r = 0.368, p < 0.05). Conclusions: A positive correlation was found between the severity of malocclusion and dental caries.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.3
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• pp.337-347
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• 2009

Dental caries during infantile and early childhood period is a complex disease resulting from multiple caries factors. Streptococcus mutans(S. mutans) plays a critical role in the initiation of caries, and its early transmission through mothers provides a strong etiologic factor for future development of caries in the primary dentition. Therefore, early detection of caries risk factor is important for prevention of caries. Recent studies about etiologic factors of caries have brought advent of various tools for caries risk assessment in order to predict progress of caries more accurately. Cariogram is a common tool for caries risk assessment, which illustrates present caries risk assessment and correlation of caries risk factors for an individual graphically. The aim of this study was to assess if there is any correlation in the level of S. mutans and caries activity and to verify the effect of caries risk factors between children with age ranging from 3 to 5 years with severe early childhood caries(S-ECC) and their mothers using caries-related salivary test and Cariogram. The results of this study were as follows. 1. Children with S-ECC had a statistically higher level of Streptococcus mutans compared to caries-free children(p<0.05). 2. There was significant correlation between mothers and their children in the aspect of the level of Streptococcus mutans(p<0.05). 3. When caries activity was assessed using Cariogram, significant correlation between mothers and their children was found(p<0.05). 4. When each caries risk factor was evaluated for its affect on caries activity, host was more influential factor compared to microorganism and diet in children. Based on these results, we could conclude that assessing the level of S. mutans can be an effective tool for predicting possibility of caries formation in future. Since prediction of future caries progression and evaluation of caries risk factor became possible with Cariogram, we may conduct early and preventive measures for treatment of caries.

• The Journal of the Korean dental association
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• v.9 no.4
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• pp.151-157
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• 1971

Freshly extracted permant teeth were examined by electron microscope according to the Filmy replica method. Preparatory method with hydrochloric acid or proteolytic enzyme treatment was used in order to injure the structural composition of enamel surface to compare between the natural carious defects and the etched samples used in this study. The natural carious defects were chalky white or brown discolored portions at the smooth enamel surface without having visible loss of enamel substances. The findings were as follows: 1. The first caries attact initiated from the mineralized portion of rod sheath which is located at the top of enamel rod. 2. The caries developed downward along the rod sheath interprismatic substances and enamel rods subsequently. However, the caries involvement of interprismatic substances and enamel rods occured almost at the same time. 3. The rod sheath attached to the remineralized smooth emael surface was located at the top of enamel rod.

• Journal of Dental Anesthesia and Pain Medicine
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• v.19 no.6
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• pp.313-322
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• 2019

Early childhood caries is a global healthcare concern in developing and industrialized countries. If left untreated, it leads to immediate and long-term complications that affect the well-being and quality of life of concerned families. Therefore, many preventive and treatment approaches are available to the healthcare provider to curb this virulent form of caries. After behavioral interventions, general anesthesia is used in specific settings when a young patient presents with extensive teeth damage and exhibits a lack of cooperation that is incompatible with conventional dental office care. However, without proper follow-up, any positive results might be lost over time.

• Journal of the korean academy of Pediatric Dentistry
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• v.23 no.4
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• pp.925-930
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• 1996

The purpose of this study was to know whether the information of caries activity and caries experience of the children can be used to predict the behavior of the children during the dental treatment. The subjects of the study were one hundred and eighty-one preschool children, three to six years old. Salivary reductase activity was tested by the Resazurin Disc Test. Caries experience was examined. The children's behavior was observed using the rating scale of Frankl. Salivary reductase activity of the negative behavior group was slightly higher than that of the positive behavior goup, but the difference was not significant. dt index and ds index of the negative behavior group were significantly higher than those of the positive behavior group. There were no significant differences in ft index and fs index between the two behavior groups. The results suggest that the negative behavior of a child can be predicted when the child has many untreated dental caries.

• International Journal of Clinical Preventive Dentistry
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• v.14 no.4
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• pp.209-215
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• 2018

In recent years, the numbers of the orthodontic dental patients have been rapidly increased in adolescent or young adult aged generation. It has been well known that it would be very hard to control the oral hygiene cares for orthodontic applied dental patient because of the complexity of the appliance. So the caries prevalence of the orthodontic dental patients would be higher than non-appliance persons, and it might be easy to cause the dental caries especially on the labial or buccal surface of the tooth through equipping the fixed type appliance with a long period, even though the alignment of the teeth would be arranged well. So, the massive preventive program for preventive dentistry should be needed for the dental patients for orthodontic treatment, in order to protect the dental caries and the periodontal disease for them. But, lots of the dentists or dental hygienists sometimes neglect of this point for preventive dental cares orthodontic dental patients, or do not know the importance and how to manage the skill for the preventive dental works in clinical. In this article, it will be introduced the basic theories and skills for preventive cares as tooth-brushing instruction, fluoride topical application and pit and fissure sealant, scaling and professional mechanical tooth cleansing and the diet control, for the dental patients with the fixed type of the orthodontic appliance, in case by case.

• The korean journal of orthodontics
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• v.49 no.4
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• pp.246-253
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• 2019

Objective: To evaluate the effectiveness of three different caries-preventing agents on artificial caries in a Streptococcus mutans-based caries model. Methods: Sixty-five caries-free human molar enamel blocks were treated with a demineralization solution and a remineralization solution. The specimens were assigned to the following groups according to the caries-protective product applied: group A, chlorhexidine varnish; group B, fluoride-releasing chemically cured sealant; group C, fluoride-releasing lightcured sealant; group D, positive control (specimens that were subjected to de- and remineralization cycles without treatment with any caries-protective agents); and group E, negative control (specimens that were not subjected to de- and remineralization cycles). Samples in groups A-D were stored in demineralization solution with S. mutans and thereafter in artificial saliva. This procedure was performed for 30 days. Average fluorescence loss (${\Delta}F$) and surface size of the lesions were measured using quantitative light-induced fluorescence at baseline and on the 7th, 14th, and 30th days. Results: After 30 days, group A demonstrated a significant increase in ΔF and the surface size of the lesions, no significant difference in comparison with the positive control group, and a significant difference in comparison with the negative control group. Group B showed no significant changes in both parameters at any of the measurement points. While group C showed increased ${\Delta}F$ after 14 days, no significant fluorescence change was observed after 30 days. Conclusions: Both fluoride-releasing sealants (chemically or light-cured) show anti-cariogenic effects, but the use of chlorhexidine varnish for the purpose of caries protection needs to be reconsidered.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.13 no.2
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• pp.67-72
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• 2017

The purpose of study was to analyze the types of dental treatment and their frequencies in a charity dental clinic for the disabled people, and to figure out baseline data for developing oral health policies. This study was based on the 141 patient records who visited the charity free dental clinic between 2011 and 2016. Data were evaluated according to gender, types of disability, types of treatment, and the average number of caries. The number of dental treatment according to sex was 70% for men and 30% for women. Patients were classified according to types of disability. The most common type of disability is intellectual disabilities (53.9%). After that, developmental disabilities were 37.5%, and brain lesions were 8.51%. The highest frequency of dental treatment is preventive treatment (45.1%). The mean number of dental caries was higher than the number of initial dental caries in all types of disability. Preventive oral care education and regular oral screening are necessary for the oral health of patients with disabilities.

• Journal of the korean academy of Pediatric Dentistry
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• v.21 no.2
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• pp.456-462
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• 1994

The purpose of this study was to investigate the relationship between the caries experience and anxiety level to the dentist in the preschool children. 511 preschool children were brought to the dental hospital and examined for caries experience. Caries experience was measured as dDT index, fFT index, dDfFT index, dDT rate, and fFT rate. Children were requested to draw a dentist. Drawings were analyzed by the method of Human Figure Drawing Anxiety Score. Pearson correlation coefficents and their significance were calculated between caries experience and anxiety scores. There were significant negative correlation between fFT index and anxiety scores, between dDfFT index and anxiety scores, and between fFT rate and anxiety scores. There was significant positive correlation between dDT rate and anxiety scores. The results seemed to suggest that dental treatment experience reduced children's anxiety toward dentists. But, because there was obvious negative correlation between age and anxiety scores, age factor should be considered in the interpretation of the results.

• Journal of environmental and Sanitary engineering
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• v.21 no.2 s.60
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• pp.36-46
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• 2006

The purpose if this study was to investigate mother' oral health management behavior to their children. Two hundreds sixty seven mothers with elementary school students were surveyed among the residents living of Iksan city, Korea. A questionnaire was constructed and administered to the samples. The research focused in the following items: the subjects' socio-demographic factors such as education level and employment and so on; their knowledge of plaque; the leading causes of caries, regular dental examinations; dental treatment; their interest in their children's dental health; the frequency of the subjects examining their children's teeth; non-cariogenic food preparation, etc. Being based in collected data, mothers' oral health management behavior to their children were analyzed according to maternal socio-demographic factor and result were following. There was a difference in the subjects knowledge of dental plaque in accordance with their employment or unemployment and family income. There was no difference in mother's oral health management behavior to their children according to parents' education level, the subjects' age and family income. Most of mother answered the main reason of dental caries was that their children did not toothbrush their teeth regularly and there was a difference in the understanding of the subjects in accordance with the education level of fathers and family income. The subjects had a low understanding of the effect of preventing caries with the help of fluoride. They didn't have enough understanding of water fluoridation. So it is necessary that active campaigns should be launched to enlighten people in relation to the ways of preventing dental caries with fluoride.