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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 34, Issue 4 - Nov 2007
Volume 34, Issue 3 - Aug 2007
Volume 34, Issue 2 - May 2007
Volume 34, Issue 1 - Feb 2007
Selecting the target year
The Effect of Surface Sealing on the Microleakage of Class V Composite Resin Restorations
Youn, Yeon-Hee ; Hyun, Hong-Keun ; Kim, Young-Jae ; Kim, Jung-Wook ; Jang, Ki-Taeg ; Lee, Sang-Hoon ; Kim, Chong-Chul ; Hahn, Se-Hyun ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 359~369
This in vitro study was performed to assess the effect of surface sealing on the microleakage of class V composite resin restorations that underwent several aging treatments. Class V cavities were prepared on the buccal surface of 100 sound extracted premolars and restored with a hybrid light-cured composite resin according to the manufacturer's instructions. They were randomly divided into two groups consisting of 50 samples: group I, without surface sealing, and group II, in which margins were etched and surface sealant was applied. After thermocycling, each group was divided into five subgroups, respectively, to represent the five aging treatments: group A = no further treatment (only thermocycling), B = toothbrushing, C = load cycling, D = toothbrushing followed by load cycling, and E = aging treatment in deionized water for six months. Microleakage was assessed by examining the penetration of 2% methylene blue dye. The following results were obtained: 1. At occlusal and cervical margins in groups without surface sealing, there was no significant difference in microleakage after the several aging treatments (p>0.05). 2. The occlusal margins of groups with surface sealing showed no significant differences after the several aging treatments (p>0.05). 3. In the cervical margins of groups with surface sealing, microleakage significantly increased after load cycling or aging in deionized water for six months (p<0.05). 4. The no-further-treatment group and the toothbrushing group with surface sealing showed less microleakage than the corresponding groups without surface sealing (p<0.05). 5. The surface-sealed groups with load cycling or aging in deionized water showed no significant difference in microleakage to the corresponding groups without surface sealing (p>0.05). In conclusion, the results of this study suggest that the surface sealant infiltrating through the gap of the cervical margin exerted a positive effect on microleakage at the initial stage, but the effect was not sufficient to overcome the stress generated by the cuspal flexure during occlusal loading and water absorption.
COMPARISON OF THE DENTAL CARIES, CARIOGENIC MICROORGANISMS AND LEVELS OF SALIVARY IMMUNOGLOBULIN BETWEEN NORMAL PERSON AND MENTAL RETARDED PERSON
Choi, Sei-Won ; Yang, Kyu-Ho ; Choi, Nam-Ki ; Kang, Mi-Sun ; Lim, Hoi-Soon ; Oh, Jong-Suk ; Kim, Seon-Mi ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 370~382
The aims of this study were to compare the status of dental caries between mental retarded persons(MR) and normal persons and investigated the association among dental caries and oral factors(plaque index, S. mutans, Lactobacillus, buffering capacity, salivary total IgA and anti-S. mutans IgA titers). DMFS index and plaque index were significantly greater in the MR person group than in the normal person group. The concentration of S. mutans-specific IgA was significantly greater in the normal person group than in the MR person group, but that of salivary total IgA was not show the significant difference. Salivary buffering capacity was significantly greater in the normal person group than in the MR person group, but the counts of salivary S. mutans and Lactobacillus were not significantly different. By age group(I: 9-11Y, II: 12-14Y, III: 15-18Y), DMFS index and plaque index were significantly greater in the MR person group than in the normal person group at III. The S. mutans counts and Lactobacillus counts were significantly greater in the normal person group than in the MR person group at I, but those were contrary at II, III. There was a high correlation among caries index and buffering capacity, level of S. mutans and Lactobacillus, plaque index at III.
PREVALENCE OF SEVERE EARLY CHILDHOOD CARIES AND FEEDING PRACTICES IN PRESCHOOL CHILDREN IN IKSAN CITY
You, Rae-Kwan ; Lee, Kwang-Hee ; Ra, Ji-Young ; Lee, Dong-Jin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 383~389
The purpose of this study was to investigate the prevalence of severe early childhood caries and feeding pratices in preschool children. The subjects of study were six hundred and seventy-two preschool children in Iksan city. Severe early childhood caries(S-ECC) was defined as the presence of one or more cavitated, missing due to caries, or filled smooth surfaces in primary maxillary anterior teeth. The caregivers of children were given a questionnaire including age, gender, birthweight, and feeding practices. The prevalence of S-ECC was 34.5%. The prevalence was significantly higher when there were the habit of sleeping while feeding, the habit of feeding sour or sweet content in the bottle, and the habit of using the pacifier. Birth weight, breast-feeding, bottle-feeding, and the sippy cup habit showed no significant association with the prevalence of S-ECC. There were significant positive associations between breast-feeding and sleeping while feeding, between bottle-feeding and the pacifier, between sleeping while feeding and sour or sweet content in the bottle, between sleeping while feeding and the sippy cup, between sleeping while feeding and the pacifier, and between the sippy cup and the pacifier. There were significant negative associations between breast-feeding and the pacifier.
DENTAL ANXIETY OF SECOND GRADE ELEMENTARY SCHOOL CHILDREN PROJECTED IN THE DRAWING OF DENTAL TREATMENT SITUATION
Kim, Yun-Hee ; Lee, Kwang-Hee ; Ra, Ji-Young ; Lee, Dong-Jin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 390~397
The purpose of this study was to observe dental anxiety of second grade elementary school children projected in the drawing of dental treatment situation. The subjects of study were 213 school children. Questionnaire survey was done regarding their experience of pain and fear during the dental treatment and children's attitude toward the dental treatment and dentist. Drawings were analyzed using criteria modified from Dental Anxiety Scale(DAS) by Sheskin et al. The mean anxiety score was 2.00 and the range was from 0 to 6. The mean anxiety score was 2.82 in untreated children and 1.92 in treated children (P<0.05). The mean anxiety score was 2.00 in boys and 1.99 in girls. The rates of children who showed severe fear and pain of the subjects were 8.2% and 5.6%. The rates of children who showed slightly or definitely negative attitude for dental treatment and dentists of the subjects were 19.9% and 4.6%.
THE EFFECTS OF PHOTOPOLYMERIZATION OF ADHESIVE ON SHEAR BOND STRENGTH AND MICROLEAKAGE OF FLOWABLE RESIN RESTORATION
Park, Yong-Kyu ; Kim, Jong-Soo ; Yoo, Seung-Hoon ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 398~407
This study was performed to evaluate possibility to reduce treatment time for child patient who have limited control activity during flowable composite resin restoration according to comparing microleakage and shear bond strength. Group I, II with Single
, group III, IV with AQ Bond
, group V, VI with Prompt L-
, and group VII as control group without adhesive system. 12 premolars and 10 molars were assigned into each group. Restorative material was used the Filtek
flowable. The results were as follows; 1. The result of microleakage evaluation, in the group I, II with Single
showed low dye penetration score. Dye penetration between group I and group II were similar. 2. Results for shear bond strength at group I and group II showed values higher than other groups. (p<0.05) There were no statistical differences between group I and group II. (p>0.05) 3. There was no statistical differences among I and II, III and IV, V and VI groups. 4. Group VII showed significantly low shear bond strength than group I, II, V, VI(p<0.05). Group VII showed low value than group with III and IV, but no statistical significances. In conclusion, adhesive bonding resin was not affect significantly to microleakage and shear bond strength of flowable resin restoration. Therefore, to reduce the operation time, adhesive bonding resin and flowable composite resin can be cured at once. But contamination of saliva, location of cavities can affect to bond strength in clinical field.
COMPARATIVE STUDY OF FLUORIDE RELEASE AND RE-UPTAKE OF SEVERAL RESTORATIVE MATERIALS
Kim, Soo-Yeon ; Kim, Jong-Soo ; Yoo, Seung-Hoon ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 408~419
In the child, it is very important that he/she will have the ability to suppress aesthetic restorative materials of secondary caries. With the representative preventive material against caries, the importance of fluoride is more emphasized. This study examined the differences in fluoride release and re-uptake among some restorative materials, following a treatment of APF gel and fluoride varnish. The surface roughness was observed under scanning electron microscope. Studying this will provide for the research to find effective restorative materials and fluoride type in tooth caries prevention. It is applied from presence at a clinic that restorative materials are resin, flowable resin, compomer and glass ionomer. Fluoride release was measured at 24-hour intervals for 7 days, 3-day intervals from 8th to 38th day using an ion-selective electrode and analyzer. Then, the materials were treated with the fluoride gel and fluoride varnish respectively, fluoride release was measured and specimens were evaluated under scanning electron microscope for 4 weeks. It was concluded that 1. Fluoride was released for 38 days from restorative materials under 1 ppm in case of flowable resin, 1-2 ppm in compomer and 2-8 ppm in glass ionomer, a few of fluoride was released after 45 days 2. Fluoride has more releasing after application of APF gel than fluoride varnish. Fluoride re-uptake was observed under 0.6-0.2 ppm in fluoride varnish and 0.6-2.6 ppm in APF gel after starting the procedure one day(p<0.05). For the remaining 4 weeks, they demonstrated a similar release. 3. Specimens were evaluated under scanning electron microscope. Applied fluoride in the experimental group surface was rougher than the control group that did not receive fluoride application. Fluoride varnish group had a smoother surface than both the APF gel group and the varnish APF gel group that received a fluoride application.
MICROTENSILE BOND STRENGTH OF DENTIN BONDING ADHESIVES ON BOVINE TEETH
Song, Eun-Ju ; Kim, Jae-Moon ; Kim, Shin ; Jeong, Tae-Sung ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 420~429
The purpose of this study was to compare the micro ensile bond strength to bovine dentin of several adhesives (SM, Scotch
Single Bond 2; SE,
SE Bond; AQ, AQ
tri-S Bond). Except SM and SB, they have a simplified one- or two-step application protocols in compare with the dentin adhesives conventional three-step protocols. For the microtensile bond strength test, the labial surfaces of bovine incisors were used. Following exposure of dentin layer, according to their manufacturer's directions, each dentin adhesives were applied and composite resin blocks were constructed. The teeth were sectioned for specimen and tested microtensile bond strength. Also observed the fracture mode of interface. The obtained results were as follows : 1. The microtensile bond strength values ranged from 51.34 to 24.04 MPa on dentin(in decreasing order, SE, SM, SB, AQ and TS). 2. The highest microtensile bond strength was by SE and SM on bovine dentin, and the lowest by AQ and TS. 3. SM, SB and SE showed cohesive failures and adhesive failure but AQ, TS presented almost adhesive failures. In summary, microtensile bond strengths of single-step adhesives (AQ and TS) on bovine dentin were significantly lower than those of multi-step adhesives (SM, SB and SE) (p<0.05).
THE BEST TEETH COMBINATION TO PREDICT MESIODISTAL DIAMETERS OF THE UNERUPTED CANINE AND PREMOLARS OF KOREANS
Kim, So-Hwa ; Kim, Seong-Oh ; Choi, Hyung-Jun ; Choi, Byung-Jai ; Lee, Jae-Ho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 430~437
The probability table of Moyers and prediction equation of Tanaka and Johnston that have been the most frequently used, cannot produce accurate prediction when used in Korean because they are based on the Caucasian popularity of the Northern European race. The method of Moyers or Tanaka and Johnston predicts sizes of the unerupted canine and premolars on the basis of the sizes of mandibular incisors. However, some of the recent papers raise a question as to whether the mandibular incisors are the best combination to predict the sizes of the unerupted canine and premolars. The purpose of this study is to determine which sum or combination of sums of permanent tooth widths present the best prediction for the unerupted canine and premolars in a Korean sample, to calculate a specific linear regression equation for this population, and to evaluate the clinical significance. A new linear regression equation was calculated based on the data of 178 Korean young adults(70 women, 108 men, mean age 21.63 years) with complete permanent dentitions. Fifty three more children(28 girls, 25 boys, mean age 14.22 years) were used as a validation sample for the application of the multiple linear regression equation. The conclusions were as follows: 1. The combination of the sums of permanent upper central incisors, lower lateral incisors and upper first molars was the best predictor for the unerupted canine and premolars in this sample(
). 2. The multiple linear regression equation was calculated including sex and arch as additional predictor variables. male, upper:
. The determination coefficient of the equation was 64% and a standard error of the estimate was 0.71mm. 3. In about 97% of the validation sample, the estimation of the tooth width sums of unerupted canine and premolars using the new multiple linear regression equation was smaller than 1mm compaired with the actual values.
The Effect of EGF, T3 and HB-EGF on Human Periodontal Fibroblasts
Hong, Eun-Kyoung ; Cha, Jeong-Heon ; Kim, Yun-Tae ; Choi, Byung-Jai ; Kim, Seong-Oh ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 438~446
Viable cells of periodontal ligament would be an important factor for the successful replantation of an avulsed tooth. Therefore, it is critical to choose the storage medium for the preservation of traumatically avulsed teeth. Growth factors and hormones could be considered for the therapeutic application of the maintenance of viable periodontal ligament fibroblasts (PDLFs). Epidermal growth factor (EGF) has been suggested as an important player for the regeneration and wound healing process on other tissues. Therefore, EGF was evaluated for the therapeutic application on avulsed teeth. In addition, the synergic effect of EGF with tri-iodothyronine (T3) and heparin-binding epidermal growth factor-like growth factor (HB-EGF). The cell proliferation of PDLFs was determined by MTT assay and increased dose-dependently up to 10 ng/ml in the presence of EGF. Maximum cellular growth was shown at the concentration of 10 ng/ml EGF. Also, EGF promoted the wound healing of PDLFs examined by in vitro wound healing assay. Combined effects of EGF with T3 or HB-EGF on the proliferation of PDLFs were also studied. Interestingly, EGF showed the synergic effect on the proliferation of PDLFs with T3 and HB-EGF. To find out the mechanism of the synergic effect of EGF and T3, the effect of T3 on the expression of endogenous EGF receptor was determined by RT-PCR. The result was that T3 enhanced the expression of EGF receptor in PDLFs. It suggested that EGF might be a good choice for a therapeutic application, which can be used as combination with T3 and HB-EGF.
THE PREVALENCE OF DOUBLE TEETH AND CONGENITAL MISSING TEETH IN PRIMARY DENTITION AND THEIR CORRELATION WITH THE PERMANENT DENTITION
Yang, Kyu-Ho ; Lim, Hye-Jeong ; Choi, Nam-Ki ; Kim, Seon-Mi ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 447~453
The purpose of this study was to investigate the relationship between morphology and number of deciduous teeth and the occurrence of other dental anomalies in their successors, and to evaluate the necessity of early diagnosis of dental anomalies in the primary dentition. Prevalence of double teeth and congenital missing teeth was investigated in 254(134 boys, 120 girls) panoramic radiographic films, taken by 2 to 7-year-old children in Chonnam National University Hospital from 2000 to 2005. And then it was examined that relationship of anomalies of the primary dentition and their successors. Among them 11 children(6 boys, 5 girls) had double teeth or missing teeth. And prevalence of the double teeth was 1.6% and missing teeth was 3.1%. One subject had double teeth in in the mandible and missing teeth in the maxilla. Of the 11 cases of dental anomalies in primary dentition, 7 cases had congenital missing tooth in their successors. This study suggests that the dental anomalies in the primary dentition induced high prevalence of the congenital missing of permanent successors in the permanent dentition.
TREATMENT FOR ROOT FRACTURE ON THE IMMATURE MAXILLARY PERMANENT CENTRAL INCISOR
Kim, Ki-Baek ; Kim, Seon-Mi ; Choi, Nam-Ki ; Yang, Kyu-Ho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 454~460
Traumatic dental injuries in childhood and adolescent occurred more frequently than in adult. The time between the accident and the treatment is one of the most critical factors to prognosis, and because of the limited time available to examine and treat patients with traumatic dental injuries, if not treat appropriately, the result would be critical for the patient. In the previous studies, the prevalence and incidence of traumatic injuries were the most frequent at the age of 8 to 10 years, the majority of dental injuries involve the anterior teeth, especially the maxillary incisors, and males were more prevalent than females in an approximated proportion of 2:1. As the mean age of complete root formation is 10 years old, the maxillary permanent incisor involved in the most affected age group is usually immature, and the possibility of pulpal healing through excellent revascularization exists, more positive prognosis for pulp vitality would be expected. These are treatment cases of the immature maxillary permanent central incisor involved in the traumatic injury, and reports for progress and results of preserving the pulp vitality through the conservative treatment instead of the conventional endodontic root therapy.
INFECTIVE ENDOCARDITIS IN ANTIBIOTICALLY PROTECTED PATIENT WITH VENTRICULAR SEPTAL DEFECT
Yang, Jung-Hyun ; Hyun, Hong-Keun ; Kim, Young-Jae ; Kim, Jung-Wook ; Jang, Ki-Taek ; Lee, Sang-Hoon ; Hahn, Se-Hyun ; Kim, Chong-Chul ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 461~467
Infective endocarditis is a life-threatening disease, although it is relatively uncommon. Substantial morbidity and mortality result from this infection. Therefore, primary prevention of endocarditis whenever possible is very important. The American Heart Association updated recommendations for the prevention of infective endocarditis in individuals at risk for this disease in 1997. But, utilization of antibiotic prophylaxis for patients at risk does not provide absolute immunity from infection. This report presents the case of infective endocarditis that occurred in spite of appropriate antibiotic prophylaxis in the ventricular septal defect(VSD) patient.
WISKOTT-ALDRICH SYNDROME WITH DENTAL PROBLEMS : CASE REPORT
Lee, Yeon-Joo ; Hyun, Hong-Keun ; Jang, Chul-Ho ; Kim, Yeong-Jae ; Kim, Jung-Wook ; Jang, Ki-Taek ; Kim, Chong-Chul ; Hahn, Se-Hyun ; Lee, Sang-Hoon ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 468~472
The Wiskott-Aldrich Syndrome (WAS) is an inherited immunodeficiency caused by a variety of mutations in the gene encoding the WAS protein (WASp). First described in 1937 by Wiskott, the incidence of WAS has so far been estimated at 4 in 106 live births. The Wiskott-Aldrich Syndrome is an X-linked condition characterized by 1) an increased tendency to bleed caused by a reduced number of platelets, 2) recurrent bacterial, viral and fungal infections, and 3) eczema of the skin. The purpose of this report is to present cases highlighting the clinical features of the syndrome and the required considerations in the treatment of patients. The report consists of two particular cases: a 2-year-11-month-old boy seen for a routine oral examination prior to his bone marrow transplantation and a 2-year-6-month-old boy with herpes gingivostomatitis and teeth discoloration.
A CASE REPORT OF A DENTIGEROUS CYST TREATED BY MARSUPIALIZATION
Jun, Eun-Min ; Kim, Tae-Wan ; Kim, Hyun-Jung ; Nam, Soon-Hyeun ; Kim, Young-Jin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 473~480
The dentigerous cyst originates through alteration of stellate reticulum after amelogenesis has completed, with accumulation of fluid between the layers of the reduced enamel epithelium or between this epithelium and the tooth crown. Its incidence is relatively high on 10s or 20s of age and it is always related to the unerupted crown. Generally, it has no symptom, however, if the cyst is large or accompanied with pus formation, swelling and pain may occur. In radiographic findings, it shows impacted crown surrounded by well defined unilocular radiolucent lesion and occasionally displacement of adjacent teeth or root resorption. The goal of treatment is complete elimination of abnormal tissue preserving the tooth involved in the cyst. Enucleation and marsupialization are commonly used for the treatment. Marsupialization is the procedure which removes the partial portion of the cystic wall and connects with the oral mucosa. As the pressure in the cyst decreases, bone regeneration takes place in the defect area and cystic wall converts into normal mucosa. This procedure, however, is the most conservative procedure which allows the protection of adjacent important structures. If the eruption space is sufficient, then inducing the eruption of the permanent tooth in the cyst is also possible. In following cases, dentigerous cyst was diaganosed after clinical and radiographic examination. Marsupialazation was done to remove the cyst and induce the tooth, which was in the cyst, to erupt into the oral cavity.
AUTOTRANSPLANTATION OF IMPACTED MAXILLARY CANINES
Kim, Su-Kyoung ; Baik, Byeong-Ju ; Kim, Jae-Gon ; Yang, Yeon-Mi ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 481~489
Maxillary canine impaction is a frequently encountered clinical problem, and it may cause the resorption of adjacent tooth or cystic change. Treatment plan for maxillary canine impaction should be decided among extraction, orthodontic traction and autotransplantation according to several factors such as direction and position of unerupted tooth, degree of developing root apex, eruption space, exsitance of supernumerary tooth, odontoma, or cyst. Autotransplantation is a valuable alternative to extraction of impacted teeth, where surgical exposure and subsequent orthodontic realignment are difficult or impossible due to unfavorable impaction position. And its prognosis is dependent on a number of factors such as preservation of periodontal ligament, degree of root development, surgical technique, patient's age, endodontic treatment, time and type of splinting and storage medium, etc. The patients in these cases visited our dental clinic in the late permanent dentition with the chief complaint of unerupted maxillary canines. And it was thought that the spontaneous eruption guidance or orthodontic traction and alignment were difficult because of its unfavorable impacted position. Therefore, autotransplantaion and endodontic treatment were done and have been checked periodically until now.
ERUPTION DISTURBANCE ASSOCIATED WITH A SMALL ODONTOMA
Song, Ji-Hyun ; Lee, Kwang-Hee ; Ra, Ji-Young ; Lee, Dong-Jin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 490~497
Odontoma is defined as a benign odontogenic tumor containing enamel, dentin as well as cementum and constitued 22% of all odontogenic tumors. Although the lesions are commonly asymptomatic, they may be discovered routine radiographic examination. Odontomas often cause disturbances in the eruption of teeth such as, impaction or delayed eruption, retention of primary teeth, or abnomalities in the position of the teeth such as tipping or displacement of adjacent teeth. Radiologically, odontomas manifest as a dense radiopaque lesion surrounded by a thin radiotransparent halo. However, in some cases, radiopacity was not quite clear and images of the teeth shadowed very tiny odontomas. And at early development stages of odontoma, calcification remains immature and is difficult to diagnose on radiographs. This suggests that when delayed eruption of the teeth is found, periapical radiographs should be taken to clarify whether any small area of radiopaque material exists. This case report shows tiny odontomas involving an impacted tooth and crowding and we remove the tiny odontoma surgically.
Autotransplantation of an impacted maxillary canine using Rapid Prototyping : A case report
Cho, Nan-Ju ; Lee, Nan-Young ; Lee, Sang-Ho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 498~505
Management options for impacted maxillary canines can include (1) continued observation, (2) extraction of the primary canine to aid spontaneous eruption, (3) uncovering and bonding of the impacted tooth and its eruption using orthodontic traction, (4) autotransplantation, and (5) extraction followed by prosthetic replacement. Autotransplantation should be considered when the degree of malposition is too severe to correct by orthodontic alignment. The present report describes the management of an ectopic eruption of the left maxillary canine in an 10-year-old girl. The treatment included the extraction of primary maxillary left canine and the autotransplantation using a Rapid Prototyping model. By using RP model to contour the recipient bone and check for fitting in the prepared socket, the extra-oral time can reduce. The autotransplanted canine showed mobility within normal limit, negative response to percussion and positive to electric pulp test after 6 months.
ORTHODONTIC TRACTION OF TRAUMATICALLY INTRUDED TEETH : CASE REPORT
Kim, Hae-Ri ; Oh, So-Hee ; Kim, Young-Hee ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 506~512
Traumatic injury of tooth in children is commonly occurred problem. It is classified into tooth, periodontal tissue, supporting bone, soft tissue injury by it's area and extent. Among the periodontal tissue injuries, traumatically intruded teeth are common in anterior maxillary area, though the occurrence rate is rather low, the pulp and supporting tissue injury is possible by vertical impact. The treatment method of traumatically intruded teeth is various. Observation on the spontaneous reeruption for 3-4 weeks is recommended if the traumatized teeth are deciduous teeth or slightly intruded immature permanent anterior teeth. If this did not occur because the extent of intrusion is severe or the traumatized teeth are mature permanent anterior teeth, orthodontic traction is applied by fixed/removable appliances. At this time, light and continuous force is applied for the extrusive movement of the intruded teeth. When above procedures are impossible, surgical repositioning and fixation is recommended. In these cases, we performed conventional endodontic therapy for pulp necrosis and orthodontic traction with fixed appliance. We obtained satisfactory results and will report that.
REMOVABLE FLEXIBLE DENTURE FOR CHILD WITH LOSS OF MULTIPLE TEETH : A CASE REPORT
Chung, Yang-Seok ; Lee, Nan-Young ; Lee, Sang-Ho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 513~518
Loss of multiple teeth by multiple dental caries, traumatic influence or hereditable disease can cause many problem in children. Using removable appliance can be used for treatment of this problem. But conventional removable appliance has limits of retention by wire-clasp, non esthetic appearance, difficulty in pronunciation by its volume. Flexible denture using
system could be a excellent partial denture for restorarion in child because of various advantage such as retention from soft tissue, natural esthetic aspect, biocompatibility, durability to compare with conventional acrylic appliance. The present case report describe properties and consideration of flexible denture using Valplast
in comparison with conventional acrylic appliance and report successful restoration of child using Valplast
RESTORATION OF MISSED MAXILLARY CENTRAL INCISOR USING AUTOTRANSPLANTATION OF MESIODENS : A CASE REPORT
Kim, Hye-Kyoung ; Park, Ho-Won ; Lee, Ju-Hyun ; Seo, Hyun-Woo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 519~525
Supernumerary tooth is developed from overgrowth of dental laminar and is mainly observed in the maxillary anterior area, named 'mesiodens. Mesiodens cause many problems such as malposition of permanent anterior tooth, diastema, formation of cyst, and eruption to oral or nasal cavity. Extraction, therefore, is generally recommended choice of treatment. This case report describes that the patient is a 9 years and 8 months old boy, whose unilateral maxillary incisor was missing due to trauma, and he had a mesiodens. We practiced autotransplantation of the mesiodens to the missing maxillary central incisor area and then restored with prosthetics, substantially kept out alveolar bony resorption and provided esthetic appearance. Mesiodens was too small to be used as an abutment because its length is totally 14mm, so that poor prognosis was anticipated due to bad crown/root ratio. However, we observed clinically acceptable result during the observation period of 8 months after operation.
CONGENITAL TOXOPLASMOSIS: A CASE REPORT
Park, Jee Young ; Kim, Seung-Oh ; Kim, Jong-Soo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 526~531
Toxoplasmosis is a parasitic infection caused by the obligate parasite, Toxoplasma gondii, that is distributed throughout the world. Infection is produced by contact with animal like dog, cat, pig, cow or horse. It is also possible to produce clinical disease in the form of oropharyngeal infection through consumption of raw or incompletely cooked meat. Handling of contaminated cat litter has been found to be the major route of transmission. There are two clinical manifestations of toxoplasmosis: the congenital and the acquired form. The congenital form is characterized by hydrocephalus, chorioretinitis, convulsion, and intracerebral calcifications in the newborn. The acquired form is further subdivided into the disseminated and the lymphadenopathic types, the latter being the more common form of the disease in men. This is a case report of a Korean 8 year 2 months female congenital toxoplasmosis child. Clinical feature, patient's medical history, radiographic evaluation and dental problems are discussed in this report.
EVOLUTION OF HUMAN DENTITION
Lee, Kwang-Hee ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 34, issue 3, 2007, Pages 532~542
The purpose of study was to review the transition of dentition according to the evolution of man to know the background of the dental problems like hypodontia and malocclusion. Man is Kingdom Animalia, Phylum Chordata, Class Mammalia, Order Primates, Suborder Haplorrhini, Superfamily Hominoidea, Family Hominidae, Genus Homo, Species Sapiens by taxonomy. The first hominid was Australopithecus which appeared c. 4 millions of years ago and showed bipedalism and distinct dentition. Homos began with H. habilis who appeared c. 2.5 millions of years ago and made stone tools, and then H. erectus and H. neanderthalensis appeared and disappeared until H. sapiens came. The dental formula of primitive mammalians which was I3 C1 P4 M3 changed to I2 C1 P4 M3 of primitive primates, to I2 C1 P3 M3 of Haplorrhini, and to I2 C1 P2 M3 of hominoids. That of H. sapiens is changing to I2 C1 P2 M2.The box type dentition of hominoids changed to the omega type dentition of Australopithecus, and to the parabolic type of H. sapiens. The size of teeth decreased continually, especially the canine and sexual dimorphism. The dentition moved backward and downward to the cranial crown according to the increase of the brain and decrease of the jaws. It was suggested that the change of diet to the starchy foods, food processing, and the development of cooking reduced the necessity of mastication and caused the change of dentition. The future of H. sapiens who is quite a new species in the earth histroy and is now causing the mass extinction of other species is hard to see. It seems that hypodontia and malocclusion are related to the dentition change according to the evolution of man and is likely to increase.