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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
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 41, Issue 4 - Nov 2014
Volume 41, Issue 3 - Aug 2014
Volume 41, Issue 2 - May 2014
Volume 41, Issue 1 - Feb 2014
Selecting the target year
Effect of Various Surface Treatment Methods on Shear Bond Strength of Orthodontic Brackets to Aged Composite Resin
Park, Jongcheol ; Park, Howon ; Lee, Juhyun ; Seo, Hyunwoo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 125~133
DOI : 10.5933/JKAPD.2014.41.2.125
The purpose of this study was to investigate the effect of various surface treatment methods on the shear bond strength of orthodontic brackets in vitro. Ninety six specimens, 6 mm in diameter and 5 mm in height, were made with composite resin (
Z350 XT, 3M ESPE, USA) and treated with an aging procedure. After aging, the specimens were randomly separated in six groups: (1) control with no surface treatment, (2) 37% phosphoric acid gel, (3) 4% hydrofluoric acid gel, (4) sodium bicarbonate particle abrasion, (5) diamond bur, and (6) 1 W carbon dioxide laser for 5s. The metal brackets were bonded to composite surfaces by means of an orthodontic adhesive (Transbond XT, 3M Unitek, USA). Shear bond strength values were evaluated with a universal testing machine (R&B Inc., Korea). Analysis of variance showed a significant difference between the groups. Group 5 had the highest mean shear bond strength (11.9 MPa), followed by group 6 (11.1 MPa). Among the experimental groups, group 2 resulted in the weakest mean shear bond strength (5.22 MPa). The results of this study suggest that the repair shear bond strength of the aged composite resin was acceptable by surface treatment with a carbon dioxide laser.
The Distribution of Patients and Treatment Trends in the Department of Pediatric Dentistry, Yonsei University Dental Hospital for Last 5 Years
Kang, Chungmin ; Lee, Hyoseol ; Choi, Hyungjun ; Choi, Byungjai ; Son, Heungkyu ; Lee, Jaeho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 134~144
DOI : 10.5933/JKAPD.2014.41.2.134
The aim of this study was to investigate changes in treatment patterns within pediatric dentistry departments by analyzing the distribution of patients and treatment trends. To that end, treatment charts based on electronic medical records (EMR) from the Yonsei University Dental Hospital from 2008 to 2012 were collected and analyzed. The results showed a decrease in the number of new patients and patients cared for by non-specialists, while the number of foreign patients has increased. The under 2 years-old group accounted for a large portion of new patients. Dental caries, dental trauma, and malocclusion ranked as the top complaints. In terms of restoration treatment, the proportion of patients receiving composite resin, amalgam, and sealant has decreased, whereas self-curing glass ionomer and preventive resin restoration have increased. Single-visit endodontic treatment has been increasing, with a decreasing trend in multi-visit endodontic treatment. The rate of conservative pulp treatment, such as pulp capping and pulpotomy, has increased. For reducing patient anxiety, treatments under sedation have increased, especially with the use of nitric oxide. This investigation into the latest treatment trends and patient characteristics is expected to help pediatric dentists to make appropriate treatment plans.
Inpatient Dental Consultations to Pediatric Dentistry in the Yonsei University Severance Hospital
Joo, Kihoon ; Lee, Jaeho ; Song, Jeseon ; Lee, Hyoseol ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 145~151
DOI : 10.5933/JKAPD.2014.41.2.145
The goal of this study was to describe dental consultation of pediatric inpatients to the department of pediatric dentistry at Yonsei University Severance Hospital. 391 dental consultations at Yonsei University Severance Hospital referred to pediatric dentistry in the year 2012 were included in this study. Consultations were categorized according to patients' gender, age, chief complaint, referred department and diagnosis. 288 patients (166 males and 122 females) with an average age of 5.9 were referred to the Department of Pediatric Dentistry. 129 cases (33.1%) from Department of Rehabilitation Medicine, 80 cases (20.5%) from Pediatric Hematology- Oncology, 51 cases (13.0%) from Pediatric Cardiology, and 44 cases (11.3%) from Pediatric Neurology. Chief complaints were ranked from oral examination (39.7%), dental caries (14.0%), pre-operative evaluation (12.8%) and others (33.5%); including oral pain, trauma, tooth mobility, orthodontic treatment, self-injury, fabrication of obturator and etc. Dental consultations should be encouraged as dental care and treatment could affect the control of systemic diseases of admitted patients. Pediatric inpatients have been referred to pediatric dentistry for not only comprehensive oral exam but also various chief complaints. The most frequent dental diagnosis made and treatment performed were dental caries and non-invasive/preventive care respectively.
Evaluation of New LED Curing Light on Resin Composite Polymerization
Kang, Jieun ; Jun, Saeromi ; Kim, Jongbin ; Kim, Jongsoo ; Yoo, Seunghoon ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 152~156
DOI : 10.5933/JKAPD.2014.41.2.152
The purpose of this study is to compare efficiency of broad spectrum LEDs (
, Ultradent, USA) with conventional LED curing lights (
Freelight 2, 3M ESPE, USA) using a microhardness test. The light curing units used were
in three different modes and
Freelight 2. The exposure time was used according to the manufacturer's instructions. After cured resin specimens were stored in physiological saline at
for 24 hours, microhardness was measured using Vickers microhardness tester. The microhardness of upper and lower sides of the specimens were analyzed separately by the ANOVA method (Analysis of Variance) with a significance level set at 5%. At upper side of resin specimens, an increased microhardness was observed in the broad spectrum LED curing light unit with a high power mode for 4 seconds and plasma emulation mode for 20 seconds (p < 0.05). However, at the lower side of resin specimens, there were no significant differences in microhardness between broad spectrum LED curing light unit and conventional LED curing light unit.
Orthodontic Treatment of an Impacted Immature Tooth Using C-tube as a Skeletal Anchorage : Case Reports
Choi, Sooyeon ; Kong, Eunkyung ; Chung, Kyurhim ; Baek, Kwangwoo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 157~165
DOI : 10.5933/JKAPD.2014.41.2.157
Skeletal anchorage is recommended as an orthodontic treatment for an impacted immature permanent tooth. Among these methods, C-tube is relatively safe because it is fixed to the cortical bone of interdental and the lower part of the root with several short miniscrews, which causes less damage to the root in patients of early permanent dentition. As it can be easily bent, the traction direction can be adjusted to favorable bone density sites. However, patient cooperation is important and traction based on physiological force in order to gain root and dentoalveolar tissue development in immature permanent teeth is required. Periodic follow-ups should be mandatory.
Basal Cell Nevus Syndrome : A Case Report
Kim, Jeeyoun ; Oh, Sohee ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 166~173
DOI : 10.5933/JKAPD.2014.41.2.166
The basal cell nevus syndrome is also known as the Gorlin-Goltz syndrom. It is a dominant autosomal disorder which is characterized by keratocystic odontogenic tumors in the jaw, skeletal abnormalities, and multiple basal cell nevi carcinomas. This study reports an 11-year-old boy with multiple odontogenic keratocysts in the jaw, hypertelorism, and frontal bossing. When a young patient has cystic lesions with an impacted permanent teeth, it is important to preserve the teeth. For a growing patient with impacted permanent teeth, a more conservative method is suggested, which will enable the preservation the permanent teeth in Gorlin-Goltz syndrome.
Conservative Endodontic Treatment of Type III Dens Invaginatus : Case Report
Jo, Wansun ; Lee, Nanyoung ; Lee, Sangho ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 174~179
DOI : 10.5933/JKAPD.2014.41.2.174
Dens invaginatus is a developmental anomaly resulting from an infolding of the enamel organ into the dental papilla prior to calcification of the dental tissue. Clinical and radiographic presentation of dens invaginatus shows a lot of variation. The classification proposed by Oehlers(1957) is most commonly used among classifications of dens invaginatus. Several treatments have been suggested to treat Type III dens invaginatus where the pulp remains healthy but the invagination is associated with a periodontitis. The top priority objective is to preserve pulp as sound as possible. Thus, if there is no definite evidence of pulpal disease, the conservative access which treat invagination as distinct from the pulp is necessary. But, Endodontic treatment of Type III dens invaginatus has the particular problems associated with achieving adequate chemomechanical debridement of the root canal system and invagination, predictable length control and consistent filling. In this case report, the endodontic treatment limited within invagination was performed for treatment of Type III dens invaginatus, and filling with Mineral Trioxide Aggregate(MTA) resulted in good prognosis.
Managing Complications Related to Multiple Supernumerary Teeth
Kim, Jongbin ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 180~186
DOI : 10.5933/JKAPD.2014.41.2.180
One or two mesiodens are mostly common to the clinician. However, three mesiodens is rarely found and can cause complications such as orthodontic problems or interruptions of the adjacent teeth with more than 1 or 2 mesiodens. Many factors cause irregularities in the permanent dentition. Mesiodens, especially in the anterior maxilla, can disturb the eruption of adjacent permanent teeth and cause diastemas, ectopic eruptions, root resorption, or the formation of dentigerous cysts. The early diagnosis of mesiodens is important for preventing such complications, and the timing of intervention should be based on their location and number. Periodic checkups and improved diagnostic devices make it easy to find mesiodens and associated complications. In this case, 3 supernumerary teeth in the maxillary anterior region were affecting the eruption of the adjacent permanent incisors. To minimize complications and preserve the deciduous teeth, the three supernumerary teeth were extracted in 2 steps. Since cone-beam computed tomography was not available, a brace wire was used to measure the depth of the mesiodens.
Institutional Review Board and Research Ethics
Kim, Jongbin ; Kim, Jongsoo ;
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY, volume 41, issue 2, 2014, Pages 187~192
DOI : 10.5933/JKAPD.2014.41.2.187
Research ethics is the basic attitude for researchers. Thanks to our predecessors we are able to conduct systematic studies. The current trend of results and the amount of study-oriented assessments make the side effect that researchers conduct SCI (Science Citation Index) studies. Since the Declaration of Helsinki, the importance of the right, safety and welfare for human participants have improved. In the present study, I looked into other countries' standpoints concerning the subject of the responsibilities for research ethics and compared them with Korean's standpoint. Recently, the Ministry of Health and Welfare revised the laws for bioethics and safety. In the point of bioethics, I checked out the function, exemption and process of the Institutional Review Board for the future researcher. It is suggested to use the research note to verify a study procedure and protect oneself from research misconducts.