• The Journal of Korea Assosiation for Disability and Oral Health
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• v.9 no.1
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• pp.42-45
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• 2013

De Grouchy syndrome or Distal 18q- is a genetic condition caused by a deletion of genetic material within chromosome 18, and the deletion involves the distal section of 18q. It causes a wide range of medical and developmental concerns. Congenital orthopedic anomalies, cleft lip and palate are relatively common. People with distal 18q- are often small for their age. Most individuals with distal 18q- fall in the mild to moderate range of intellectual disability. Strabismus and nystagmus, changes in the optic nerve as well as colobomas are also fairly common. People with distal 18q- frequently have conductive and/or sensorineural hearing loss. At present, treatment for distal 18q- is only symptomatic. This article presents a case report: Caries treatment of a 4-year-old female patient with de Grouchy syndrome under general anesthesia. The special considerations of dental care, especially caries treatment for the patient with de Grouchy syndrome are discussed.

• Journal of Korean society of Dental Hygiene
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• v.1 no.1
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• pp.39-51
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• 2001

This study was performed to collect basic data for the development of effective oral health education program of lower graders in elementary school. The subject in this study were 704 first-year, second-year and third-year in Hyoje elementary school. The authors collected the tissue where dental caries involved. the possibilities of dental caries prevention. cariogenic food and noncariogenic food. time and frequency of toothbrushing. size of using toothbrush, intake frequency of cariogenic food and the experience with visiting dental clinics, the purpose of visiting dental clinics and fear for dental treatment. The collected data were analyzed. The finding of this study were as follows: 1. Twenty-four percent of students had not correct understanding about the tissue which dental caries are involved. Eleven percent of students thought that it was impossible to prevent dental caries. 2. Sixty-four percent of student brushed their teeth before going to bed, and 63.0% of responded students brushed their teeth twice or more a day. Seventy-eight percent of students used small toothbrush. and there was a Significant difference of size of using toothbrush among the first, second and third graders(P<0.01). Sixty-nine percent of students intake cariogenic food once or more a day. 3. Eighty-six percent of students had experienced with visiting denial clinics. sixty-two percent of students visited dental clinics when they had a toothache. and there was a significant difference of the purpose of visiting dental clinics among the first. second and third graders(P<0.01). Seventeen percent of students responded that dental treatment is fearful there was a significant difference of fear for denial treatment among the first, second and third graders(P<0.05). 4. It was recommended that effective oral health education programs should be developed to increase toothbrushing after breakfast, to decrease intake frequency of cariogenic food, to increase frequency of visiting dental clinics regularly, and to reduced fear for dental treatment.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.12 no.2
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• pp.82-86
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• 2016

Lowe syndrome is X-linked gene disorder, characterized by cataracts, renal dysfunction and brain abnormalities. Oral healthcare of young patients with Lowe syndrome could be easily neglected due to the uncooperative behavior or other systemic condition of the child. We are presenting a case of successful treatment under general anesthesia with uncooperative child with Lowe syndrome. A 3-year old boy with Lowe syndrome visited Seoul National University Dental Hospital for multiple caries. He had been suffering from congenital cataract, medullary nephrocalcinosis and hypotonia. Multiple caries were observed from clinical and radiographic examination. Concerning behavior management problem and possibility of aspiration due to hypotonia, dental treatment under general anesthesia was planned. Left upper primary first molar was extracted to prevent further infection. Other teeth were treated with Stainless steel crown or composite resin restoration based upon the extent and the severity of dental caries. Under general anesthesia, dental procedure was carried out successfully and safely. Considering uncooperative behavior and other medical conditions of the patient, general anesthesia could be effective. Home oral care and periodic visit to dental clinic should be emphasized to the caregiver of patient with Lowe syndrome, considering the susceptibility of dental caries and other oral manifestation.

• Journal of Korean Academy of Oral Health
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• v.42 no.4
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• pp.238-241
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• 2018

Williams syndrome is a rare congenital disorder with various physical abnormalities and characterized by facial, oral, and dental features. Individuals with Williams syndrome typically have eating disorders in the early childhood, which lead to prolonged night feeding. Prolonged night feeding is a risk factor for rampant dental caries. Williams syndrome is caused by the microdeletion of chromosome 7, resulting in elastin deficiency. Elastin is integral to cardiovascular health. Many patients with Williams syndrome have complex cardiovascular abnormalities that must be considered a part of dental management. Complications related to cardiovascular diseases may induce adverse effects such as dangerously elevated blood pressure. This may occur in patients during stressful dental treatment. In addition, characteristics of auditory hyperalgesia and anxiety disorders among patients with William syndrome, complicate receiving routine dental management. Therefore, dental treatment under sedation or general anesthesia may be preferable for patients with Williams syndrome; in particular, patients who are very uncooperative and/or needs extensive dental treatment. A thorough evaluation of each patient's physical condition is required before making decisions regarding dental treatment. Careful monitoring and preparation for emergencies are very important during and shortly after dental treatment under general anesthesia or sedation. Monitoring is critical until vital signs have stabilized and return to normal. A 28-month-old man diagnosed as having Williams syndrome, visited the Dental Hospital of ${\bigcirc}{\bigcirc}$ University for the management of rampant dental caries. We reported on the management of this patient who had peripheral pulmonic stenosis, and received dental treatment under general anesthesia. We also reviewed the characteristics of Williams syndrome and discussed considerations for dental treatment under general anesthesia.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.48 no.6
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• pp.342-347
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• 2022

Objectives: The purpose of this study is to investigate the characteristics of dentigerous and radicular cysts that occur between deciduous and succeeding permanent teeth and to propose considerations for differential diagnosis of cysts at the treatment planning stage in the outpatient clinic. Materials and Methods: A total of 87 patients with a cystic lesion located between a deciduous tooth and the succeeding permanent tooth participated in the study. Twelve variables were analyzed to diagnose such a cyst. For data analysis, Fisher's exact test was used to determine the statistical significance of the variables. Results: Of the total 87 patients who participated in this study, 69 were diagnosed with dentigerous cysts and 18 were diagnosed with radicular cysts. Seven of the 12 differential factors analyzed in this study were statistically significant: age, location, symptoms, dental caries, endodontic treatment, delayed eruption, and size. Conclusion: Several criteria can be considered for diagnosis of dentigerous cysts or radicular cysts. Age, location, presence of symptoms and dental caries, previous endodontic treatment, cystic size, and delayed eruption of impacted permanent teeth are reliable factors that should be considered when diagnosing dentigerous and radicular cysts.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.12 no.2
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• pp.87-91
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• 2016

Pierre Robin syndrome (PRS) is characterized by the triad of congenital mandibular hypoplasia, glossoptosis and cleft palate. Infant PRS patients are frequently suffering from upper airway obstruction, gastroesophageal reflux and growth retardation caused by above mentioned problems. We report a dental caries treatment of 3-year old girl with Pierre Robin syndrome with multiple caries. The cause of multiple caries was mainly presumed as patient's eating habit caused by her general condition. She had some feeding problems and had history of gastric tube. She was still using milk bottle and took more than an hour to finish a meal. The treatment was performed under general anesthesia considering patient's condition; mild autism, poor cooperation and respiratory problem due to micrognathia. Severely affected upper incisors were treated with pulp treatment and restored with zirconia crown for esthetic purpose. Lower incisors were treated with pulp treatment and restored with composite resin. Upper right first primary molar was restored with stainless steel crown and other primary molars were treated with composite resin. There were no postoperative complications. According to her parents, the patient's compliance to oral hygiene management was greatly improved after the treatment since she was very pleased with the esthetic result and highly motivated by her looks. The treatment without sedation or general anesthesia would be possible once the airway is improved as the mandible grows.

• The Journal of the Korea Contents Association
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• v.9 no.4
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• pp.265-274
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• 2009

This study aims at examining the actual condition of recognition of dental caries(ACRDC), presenting a scheme to improve the recognition, and providing basic data necessary to prevent oral diseases, Dental caries (DC) which one of the three most important chronic diseases in Korea. A survey was conducted on ACRDC for about 390 people twenty and over who visited dental clinics for dental treatment 336 questionnaires with exception of omitted answer were used for statistical analysis. Many of them had never heard of DC and most of them failed to recognize it. People who experienced DC had a dental clinic as a main information channel and they were significant differences in those obtaining information through other channels(p=0.008). Univariate logistic regression analysis for effects on ACRDC demonstrated that possibility of subjects in their twenties recognizing DC more accurately than those in their forties Odds ratio(95% confidence Interval) was 2.06(1.16-3.66)(p=0.000), with the possibility of professionals recognizing the disease more accurately than those with other kinds of occupation 5.49(2.52-11.93)(p=0.000), showing statistically significant relevance. As for medical security, possibility of work insurance being related to more accurate recognition of dental caries than others was 1.95 (1.03-3.71)(p=0.003), with the possibility of subjects whose dental state was very good recognizing dental caries more accurately than those whose dental state was very bad 6.40(1.57-26.03) (p=0.002), showing statistically significant relevance. For prevention of DC, an education through experts working at a dental clinic are necessary for those in their twenties and over, who were other than professionals, who were insured for medical security via other than work insurance, and whose dental state was bad.

• Journal of the korean academy of Pediatric Dentistry
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• v.42 no.3
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• pp.218-225
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• 2015

This study used sodium fluorescein to improve imaging diagnostic ability by increasing the fluorescence difference between sound enamel and caries lesions. It also made it easier to discriminate between stain and caries lesions using quantitative light-induced fluorescence (QLF). Half of the specimen surface was covered with nail varnish as a control. Specimens were divided randomly in six decalcification groups and decalcified for different lengths of time. Then, ${\Delta}F$ was measured using QLF-D. After applying 0.075% sodium fluorescein, we measured ${\Delta}F$ again and compared it with the initial value. After cutting the central portion of the specimen, we measured the lesion depth using scanning electron microscopy. The lesion surfaces observed with QLF were darker than normal enamel, whereas they were lighter than normal enamel after applying fluorescein. Longer decalcification time was associated with greater fluorescent dye penetration. The ${\Delta}F$ measured after applying fluorescein was higher than the initial value (p < 0.05). Due to QLF measurement using fluorescein being more sensitive for diagnosing early decalcification, this approach will enable early diagnosis of dental caries before the cavity formation stage, allowing the treatment of early caries lesions. With QLF and sodium fluorescein, we can easily discriminate between stain and caries lesions.

• Journal of the korean academy of Pediatric Dentistry
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• v.30 no.3
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• pp.406-414
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• 2003

Chemomechanical approach to caries removal was introduced in order to preserve the maximum amount of sound tooth structure. The efficacy of chemomechanical caries removal was assessed using microcomputed tomography which offers 3 dimensional data without destroying the tooth, and the V works program. In group 1, the density values of the sound dentin, carious dentin, and remaining dentin after chemomechanical treatment were analyzed. In group 2, the density values of the sound dentin, cavity wall prepared using high speed bur, and the remaining dentin after additional $Carisolv^{TM}$ gel application on the same cavity were analyzed. The results were as follows; 1. The density value of the remaining dentin after the $Carisolv^{TM}$ treatment was 81.8% of the sound dentin(p < 0.001). 2. The density value of the remaining dentin after the conventional rotary instrument showed no statistically significant difference from that of the sound dentin(p = 0.234).

• Journal of dental hygiene science
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• v.5 no.1
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• pp.13-17
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• 2005

This research was conducted in order to collect and arrange an oral health information needed the school oral hygiene as a part of a long term local community oral hygiene development to promote the oral health of the residents in Sung-Nam. After gathering the information of oral hygiene of 12-year old schoolchildren in Sung-Nam, these conclusions are reached: (1) The experience of dental caries in permanent teeth of 12-year old schoolchildren in Sung-Nam was revealed 74.7%, proportion of children with one or more caries in permanent teeth was 36.2%, and DMFT index was 2.75. (2) DT rate was 28.4% in total and regional difference has been revealed. In Sujung-Gu, DT rate was 36,8% and this was nearly as twice as 19.8% in Bundang-Gu. (3) For permanent teeth, fillings requirements for one surface were 26.6%, more that two surfaces were 13.3%. In addition, artificial crown treatment requirements were 1.8%, dental pulp treatment was 5.3%, and extraction requirement was 2.2%. In contrast, holders of pit and fissure sealant were only 27.1%. (4) In Sung-Nam, oral hygiene education campaign for 12-year old schoolchildren needs to be continued. Simultaneously, early stage examination and preventive approaches for decayed teeth such as pit and fissure sealant need to be considered for schoolchildren who have high tendency of dental caries and who are in areas which show high percentage of dental caries occurrence.