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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
Journal Basic Information
Journal DOI :
Korean Academy of Pediatric Dentistry
Editor in Chief :
Volume & Issues
Volume 38, Issue 4 - Nov 2011
Volume 38, Issue 3 - Aug 2011
Volume 38, Issue 2 - May 2011
Volume 38, Issue 1 - Feb 2011
Selecting the target year
DEVELOPING OF QLF-D FOR EARLY DETECTION OF DENTAL CARIES
Park, Hyung-Ju ; Kim, Jong-Soo ; Yoo, Seung-Hoon ; Shin, Ju-Sun ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 317~326
DOI : 10.5933/JKAPD.2011.38.4.317
QLF-D system composed with DSLR(digital single-lens reflex) camera, and the images of natural enamel caries and artificial caries was developed from 2 days to 14 days captured by QLF-D system. The correlation between lesion depth of the polarized microscope and luminosity ratio of QLF-D image was analyzed and the results were summarized as follows: 1. The Pearson correlation value between the lesion depth of polarized microscope images and luminosity ratio of QLF-D images was 0.969(p<0.01). 2. From Regression analysis of lesion depth from polarized image by demineralized period, the equation was y
THE FLUORIDE RELEASING EFFECT OF PVA FLUORIDE-POLYMER ADHESIVE TAPE
Im, Sung-Ok ; Lee, Sang-Ho ; Lee, Nan-Young ; Park, Seung-Hyo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 327~336
DOI : 10.5933/JKAPD.2011.38.4.327
The purpose of this study is to investigate the residual fluoride concentration of polymer adhesive tape in oral cavity which is made by spraying NaF on PVA base and to compare with Fluoride varnish(Cavityshiled
). Experimental groups were divided into two according to application methods; Group 1(NaF-PVA tape) and Group 2(Cavityshiled
). Topical fluoride was applied to 20 healthy adults aged from 25 to 30. Fluoride concentration in unstimulated whole saliva was measured by fluoride-sensitive electrode for 72 hours. 1. Until 72 hours after application in every group, significantly higher fluoride concentration was shown in saliva than baseline value(p<0.05). 2. At 2, 3 and 4 hours after application, Group 2 revealed significantly higher fluoride concentration than Group 1(p<0.05). 3. At 24, 48 and 72 hours after application, there was no significance(p>0.05). Although the residual fluoride concentration of saliva and the amount of fluoride of NaF-PVA tape are lower than those of Cavityshield
, NaF-PVA tape is considered to be more effective since it showed almost the same result as Cavityshield
. Therefore, NaF-PVA tape is expected to be a great fluoride application material.
MORPHOLOGICAL FEATURES OF THE CROWNS OF MAXILLARY SECOND PRIMARY MOLAR AND FIRST PERMANENT MOLAR: AN ODONTOMETRIC STUDY
Kim, Ji-In ; Hyun, Hong-Keun ; Kim, Young-Jae ; Kim, Jung-Wook ; Jang, Ki-Taeg ; Lee, Sang-Hoon ; Hahn, Se-Hyun ; Kim, Chong-Chul ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 337~347
DOI : 10.5933/JKAPD.2011.38.4.337
The basic structure of the primary crowns usually resemble their succeeding permanent teeth. However, maxillary second primary molars resemble ipsilateral first permanent molars. Accordingly in this study, odontometric data of the two teeth was obtained, then analyzed to verify the morphological relationship and sex difference between the two teeth. Dental study casts were examined for their mesiodistal and buccolingual width of the crowns, diameter of each cusps, and intercuspal distances. Photographs of the crowns were taken to measure the angles between each cusp tip. The results are as follows : 1. In boys, PrI, PaI, DBC angle, and MBC angle did not show any statistically significant difference between the two teeth(p>0.05), and moderate level of correlations were observed. 2. In girls, crown index, DBC angle, and MBC angle of the two teeth did not show any statistically significant difference(p>0.05), and moderate level of correlations were recognized. 3. Measurements that did not show statistically significant difference between the two teeth in both boys and girls were DBC angle and MBC angle(p>0.05). In DLC angle, however, statistically significant difference was observed(p<0.01). 4. Most of the measurements showed sex differences, except DBC angle, which did not show any sex difference in both teeth(p>0.05).
COMPARISON OF MICROTENSILE BOND STRENGTH OF COMPOSITE RESTORATION TO ERODED ENAMEL BY SURFACE TREATMENT
Lee, Soon-Young ; Lee, Kyung-Ho ; Noh, Hong-Seok ; Jeong, Tae-Sung ; Kim, Shin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 348~354
DOI : 10.5933/JKAPD.2011.38.4.348
Composite resin has been widely used for eroded enamel. But, as there have been many reports about the differences in physicochemical characteristics of eroded enamel compared with sound enamel, an additional effort was thought necessary to obtain the optimal bond strength. As a possible answer, we came to think about the application of infiltrant resin which is known to have an excellent penetration capacity into enamel. This study was performed for the purpose of comparing the bond strength of composite restoration with or without infiltrant resin under adhesives on the artificially eroded enamel. 60 extracted sound maxillary primary incisors were selected and divided into group 1, 2, 3 according to the number of artificial erosion cycling for 5 minute duration in 1% citric acid of pH 3.2 at
. And the labial surfaces were divided into 3 areas; group A, only resin adhesive was used, group I, only infiltrant resin, group IA, infiltrant resin followed by resin adhesive. Afterwards, every specimen was restored with composite resin. Microtensile bond strength was measured and failure modes were observed. The obtained results were as follows: 1. In comparing the bond strength by the degree of enamel erosion, it was revealed the highest bond strength in group 1, followed by group 2 and 3, showing the lowest bond strength in most eroded group(p<0.05). 2. In comparing the bond strength by surface treatment methods, group IA and I showed higher value than group A(p<0.05), with unsignificant difference between group I and IA(p>0.05). 3. In observation of failure mode, it was shown higher frequency of cohesive failure in order of 1-2-3 and IA-I-A. Conclusively, it was shown decreasing tendency of bond strength as the enamel is more eroded, and infiltrant resin was thought helpful to replace or add to the resin adhesive for optimal bonding with eroded enamel.
AN EFFECT OF SLEEPING HOURS PRIOR TO PROCEDURE ON CHLORAL HYDRATE SEDATION FOR PEDIATRIC DENTAL PATIENT
Maeng, Yu-Jin ; Oh, So-Hee ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 355~361
DOI : 10.5933/JKAPD.2011.38.4.355
Sedative method and its effect are affected by diverse variables: dosage and intake method of drug, weight, gender, patient compliance, sleeping hours prior to procedure, treatment hours, health status, type of used drugs are the factors. This study is conducted with empirical observation that shorter the sleeping hours before the day of chloral hydrate sedation, the effectiveness is larger; and therefore to actually recognize the correlation between chloral hydrate/hydroxyzine sedation and sleeping hours of child patient prior to sedation. The subjects were those children whose sleeping hours were similar to each other at the ages ranging from 2 to 5 years old totaling 37 children. Total 11 of them received pulp treatment. Sedative effect was evaluated by the same assessor with Houpt`s rating scale. Sedative effect in relation with prior day`s sleeping hours evaluated with simple regression analysis. Sedative effect in relation with pulp treatment was analyzed with independent t-test. Sleeping hours prior to sedation and sedation effect have negative correlation. No significant correlation is found between pulp treatment and sedation effect(p>0.05).
DENTAL FEAR AND ANXIETY OF JUVENILES IN SOME AREAS OF GYEONGGI PROVINCE
Shim, Youn-Soo ; Kim, Ah-Hyeon ; An, So-Youn ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 362~367
DOI : 10.5933/JKAPD.2011.38.4.362
The objective of this study is to measure the fear and anxiety levels of some middle school students in Gyeonggi Province, to analyze the relevant factors, to seek how to alleviate such fear and anxiety and thus enable to make a comfortable and efficient oral management. Six hundred twenty two middle school students in Gyeonggi Province participated in the survey, which used the data of 614 respondents, i.e. 337 males and 277 females. A frequency analysis was conducted to determine the distribution of answers for each question, a crosstabulation analysis was performed to verify the gender differences in answer and an Mann-whitney U test was used to compare fear scores. According to the results patients feared even in unexpected circumstances. In addition, they feared when receiving direct treatment. In terms of gender, female students showed higher levels of fear than male ones (p<0.05).
A STUDY ON THE POSITION OF THE MANDIBULAR FORAMEN IN KOREAN CHILDREN USING PANORAMIC RADIOGRAPHS
Hong, So-Yi ; Jeong, Seo-Young ; Mah, Yon-Joo ; Jung, Young-Jung ; Ahn, Byung-Duk ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 368~375
DOI : 10.5933/JKAPD.2011.38.4.368
The aim of this study was to evaluate the position of the mandibular foramen in panoramic radiographs of Korean children to provide information for successful inferior alveolar nerve block anesthesia. 240 panoramic radiographs of 7 to 15-year-old boys and girls were analyzed. The subjects were divided into 4 groups in boys and girls according to their age.; 7-8, 9-10, 11-12 and 13-15 years old. The shortest distances from the center of the mandibular foramen to the anterior border of ramus, to the posterior border of ramus, to the antegonial notch and to the mandibular notch and the perpendicular distances from the center of the mandibular foramen to the occlusal plane were measured. The following results were obtained. 1) Although the relative position of the mandibular foramen in the ramus of mandible tended to move anteriorly for both genders with age, the vertical position did not correlate with age. 2) The mandibular foramen moved upward in relation to the occlusal plane with age, and showed statistically significant correlation with age(p<0.05). 3) The mandibular foramina of boys, when compared to those of girls, were located more superiorly in relation to the occlusal plane and more superiorly and posteriorly in the ramus of mandible.
A SURVEY ON THE PREOPERATIVE CONDITIONS OF ENDODONTICALLY TREATED FIRST MOLARS IN CHILDREN AND ADOLESCENTS
Lee, Soon-Young ; Lee, Kyung-Ho ; Noh, Hong-Seok ; Jeong, Tae-Sung ; Kim, Shin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 376~382
DOI : 10.5933/JKAPD.2011.38.4.376
In clinical dentistry, it is not difficult to meet the permanent first molars with severe coronal caries lesions in children or adolescents. The circumstances surrounding the first molars of children and adolescents are so immature and imperfect compared with those of adults. So we thought it significant to understand the status of these teeth at the moment of endodontic treatment and immediate cause of it. 106 patients with 135 permanent molars necessitating endodontic treatment in childhood and adolescence were included in this study, and the dental records and radiographs were examined. 1. The mean age was 11.9 year (male 11.5, female 12.5) and the result shows significant difference between gender(p<0.05). The mandibular teeth took more than half percentage than maxillary teeth. 2. Of 135 teeth, 45.2 percent of teeth had history of dental treatment previously and 16.3 percent of teeth showed necessity of re-endodontic treatment. 3. Of 73 teeth, 22 teeth had mesial-wall cavity causing endodontic treatment, 39 had occlusal cavity, and 12 had distal cavity.
SPONTANEOUS ERUPTION OF ECTOPIC IMPACTED TOOTH BY INTENTIONAL EXTRACTION OF DECIDUOUS TOOTH
Choi, In-Young ; Kim, Seung-Hye ; Kim, Seong-Oh ; Choi, Hyung-Jun ; Lee, Jae-Ho ; Choi, Byung-Jai ; Son, Heung-Kyu ; Song, Je-Seon ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 385~390
DOI : 10.5933/JKAPD.2011.38.4.385
When many factors involved in the eruption of the teeth act as negative effects, they can cause eruption disturbance. Periodic observation, space acquirement, surgical exposure, orthodontic traction, orthodontic traction accompanied with surgical exposure, and surgical repositioning are considered as the treatment options of an impacted tooth, which is a form of eruption disturbance. In the first case, a male patient, age 9, visited Yonsei University Dental Hospital (YUDH) with a chief complaint of ectopic impaction of the upper left lateral incisor. We extracted the upper left primary lateral incisor and primary canine, and 5 months later, a window opening procedure was executed. Eight months later, the upper left lateral incisor partially erupted, and 18 months after the extraction, the axis of the tooth improved and the tooth erupted spontaneously. In the second case, a male patient, age 10, visited YUDH with a chief complaint of ectopic impaction of the upper right first premolar. We extracted the upper right first primary molar. Ten months later, the upper right first premolar erupted partially, and 19 months after the extraction, the upper right first premolar erupted spontaneously. We reported two cases in which improvement of eruption path and spontaneous eruption of an ectopic impacted tooth was achieved by extracting the deciduous tooth which interfered with the proper eruption of it.
MANAGEMENT OF MULTIPLE INFRAOCCLUDED PRIMARY MOLARS WITHOUT PERMANENT SUCCESSORS: A CASE REPORT
Park, Ji-Hyun ; Song, Je-Seon ; Kim, Seong-Oh ; Son, Heung-Kyu ; Lee, Jae-Ho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 391~398
DOI : 10.5933/JKAPD.2011.38.4.391
The infraocclusion usually occurs in the mixed-dentition stage, and it is commonly accepted that the cause of the infraocclusion is ankylosis. The treatment options for patient with infraocclusion of primary molars are observation, restoration or surgical removal of the affected teeth. If the successors are present, most of the infraoccluded and ankylosed primary molars may occur normally. However, when the permanent successors are absent and the progression of infraocclusion is found, affected teeth may need to be extracted. In the case of infraocclusion which can cause vertical alveolar defect due to ankylosis, extraction before growth spurt should be performed for the future prosthetic treatment. A six-year-old female had the ankylosis and infraocclusion of multiple primary molars and congenital missing of premolars. The affected primary molars were extracted before growth spurt to avoid a significant vertical ridge defect and to promote the vertical development of alveolar bone, and the result was observed for many years. The purpose of this report is to report the management of multiple infraoccluded primary molars without permanent successors in a young patient.
INVASION OF ALVEOLAR BONE INTO ROOT CANAL AFTER TRAUMATIC INJURY
Im, Ye-Jin ; Kim, Young-Jin ; Kim, Hyun-Jung ; Nam, Soon-Hyeun ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 399~406
DOI : 10.5933/JKAPD.2011.38.4.399
Traumatic injury on tooth occurs frequently among trauma patients, and mainly occurs on tooth with premature roots which influences pulp tissue, periodontal ligament, alveolar bone, and Hertwig`s epithelial root sheath. According to the degree of trauma, a number of kinds of healing process can be observed, such as complete re-vascularization of pulp, root canal obliteration, growth suspension of root apex, and invasion of alveolar bone into root canal, and there can be some complications such as necrotic change of inflammatory root resorption and partial pulp necrosis due to pulp necrosis toward complete necrosis. In this clinical case, 3 patients who had traumatic injury showed root growth suspension and alveolar bone invasion into root canal due to proliferation of periodontal ligament cell and osteocyte at the base of extraction socket into pulp chamber because of the injury on Hertwig`s epithelial root sheath. If intrusion of alveolar bone into root canal due to injury on Hertwig`s epithelial root sheath after having traumatic injury doesn`t show any complication, the pulp may be considered to have normal vitality and doesn`t need any further treatment, therefore differential diagnosis is very necessary. However, it may be accompanied with suspension of root growth, therefore, additional trauma during the treatment of injured tooth should not be applied.
ADENOMATOID ODONTOGENIC TUMOR ASSOCIATED WITH AN IMPACTED MANDIBULAR RIGHT LATERAL INCISOR
Park, Mi-Seon ; Park, Ho-Won ; Lee, Ju-Hyun ; Seo, Hyun-Woo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 407~412
DOI : 10.5933/JKAPD.2011.38.4.407
Adenomatoid odontogenic tumor(AOT) is an infrequent odontogenic tumor which arise in the jaw. It was considered as a variant of ameloblastoma. The adenomatoid odontogenic tumor is clearly benign and, in contrast to the ameloblastoma, present a very low recurrence. It most often appears in the canine region of the maxilla. The adenomatoid odontogenic tumor is frequently asymptomatic, however it may cause painless swelling. The radiological findings of adenomatoid odontogenic tumor frequently share characteristics of dentigerous cyst and unicystic ameloblastoma. Conservative surgical enucleation and curettage are the treatment of choice. In this case a 10-year-old child was presented with mandibular right lateral incisor in unerupted. Radiographically, the tooth was impacted and a radiolucency was seen in the area. The lesion was enuclated without extraction of the tooth. Bracket was attached on the tooth for orthodontic extrusion installed. Histopathologically adenomatoid odontogenic tumor was revealed.
GARRE`S OSTEOMYELITIS IN CHILDREN
Woo, Se-Eun ; Kim, Young-Jin ; Kim, Hyun-Jung ; Nam, Soon-Hyeun ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 413~420
DOI : 10.5933/JKAPD.2011.38.4.413
Garre`s osteomyelitis is associated with bacterial infection and bone necrosis resulting from obstruction of blood supply. The most common cause for Garre`s osteomyelitis is odontogenic infection that originates from periodontal tissue or dental pulp. Subperiosteal abscess may also cause Garre`s osteomyelitis in the progress of the infection. Mandible is more often affected than maxilla, most commonly in the permanent first molar region of mandible. Clinically, it results in a hard swelling over the jaw, producing facial asymmetry. Meanwhile, radiograph shows a characteristic feature of irregular pulpal cavity, showing new periosteal proliferation located in successive layers to the condensed cortical bone on stimulated site. The treatment method for Garre`s osteomyelitis are removal of the infection source, root canal treatment, antibiotic medication, and incision and drainage. This report presents a case of Garre`s osteomyelitis under 15 years old. The patient was successfully treated by antibiotic medication accompanied with root canal treatment. Since the symptom of pediatric patients is less severe than adult, careful diagnosis with history taking and clinical examination is necessary. Furthermore long-term follow-up examination is needed to prevent recurrence even after the symptom disapears.
TREATMENT OF PALATAL ABSCESS OF ODONTOGENIC ORIGIN IN CHILDREN: CASE REPORTS
Ryu, Jae-Ryang ; Kim, Young-Jin ; Kim, Hyun-Jung ; Nam, Soon-Hyeun ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 421~426
DOI : 10.5933/JKAPD.2011.38.4.421
Most of the intraoral infections origin in odontogenic infection. Odontogenic infection spreads out along the least resistant path. In maxilla, the thickness between periapical area and cortical bone is narrower on the buccal side than the palatal side. So infection usually spreads out along the buccal side rather than the palatal side. The failure of root canal treatment more frequently occurs on the buccal root compared to the palatal root. So the palatal abscess is rarer than the buccal abscess. It is difficult to differential diagnosis palatal abscess from salivary gland tumors, benign neural tumors and cysts on the palate. Therefore, when the palatal swelling is observed in children, you need to prevent the systemic spread of infection by early diagnosis of the odontogenic palatal abscess. In these cases, the patient who complained of the pain in deciduous teeth and the palatal swelling was diagnosed with odontogenic palatal abscess. The patient was treated with extraction and antibiotic medication. The palatal abscess was resolved, and we report after treatments.
ORTHODONTIC TREATMENT OF SINGLE TOOTH SCISSORS BITE IN GROWING CHILDREN: CASE REPORTS
Kim, Ji-In ; Hyun, Hong-Keun ; Kim, Young-Jae ; Kim, Jung-Wook ; Jang, Ki-Taeg ; Lee, Sang-Hoon ; Hahn, Se-Hyun ; Kim, Chong-Chul ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 427~434
DOI : 10.5933/JKAPD.2011.38.4.427
A scissors bite in the posterior teeth occurs when the upper teeth are positioned totally buccal to the lower teeth in centric occlusion, either unilaterally or bilaterally. This malocclusion can result from either excessive width of the maxilla or deficient width of the mandible, or sometimes combination of the both. Scissors bite, when left untreated without a proper dental intervention, interferes with the normal mandibular growth leading to a state where consequent disharmony in dental arch width evokes occlusal disturbances. Therefore, early preventive orthodontic treatment is necessary in patients with scissors bite. Scissors bite rarely involves anterior and posterior sites concuttently across the dental arch but usually affect single tooth. Even in the single tooth scissors bite cases, more likely to be met in the clinical fields, immediate dental intervention is indicated because continuous occlusal forces that exacerbate the already adverse axis of the posterior teeth. In this case study, patients with single tooth scissors bite, each 7, 14, 12, and 16 years old, were each treated with criss-cross elastic, fixed appliance, removable appliance, and miniscrews. With the proper selection of appliances appropriate to each specific cases, good treatment outcome can be achieved without resulting any side effects.
AUTOTANSPLANTATION OF IMPACTED MAXILLARY CANINES: CASE REPORTS
Ko, Yoon-Sik ; Kim, Ji-Yeon ; Park, Ki-Tae ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 38, issue 4, 2011, Pages 435~440
DOI : 10.5933/JKAPD.2011.38.4.435
Maxillary canine impaction is a common eruption problem in children. Impaction frequently involves further complications such as root resorption of adjacent teeth, cyst formation and migration of the neighboring teeth, etc. Various treatment modalities include extraction of preceding deciduous canine, orthodontic traction, and surgical extraction followed by immediate replantation of the extracted tooth at the proper position(autotransplantation). Autotransplantation is considered as the treatment of choice when surgical exposure and subsequent orthodontic traction are difficult or impossible due to unfavorable impacted position. The prognosis of autotransplantation is affected by the degree of apex formation, surgical procedures performed, timing of root canal treatment, and length of stabilization period. In these two cases presented, the patients with unerupted maxillary canine were treated with autotransplantation. One case was thought that guidance of eruption by orthodontic traction was difficult because of its unfavorable impacted position. In the other case, parents didn`t agree to treat by orthodontic traction, therefore autotransplantation was done. In both cases, autotransplantation was carried out following root canal treatment and orthodontic treatment, and both cases have demonstrated to be successful to this day.