• Title/Summary/Keyword: school of dentistry

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Autotransplantation in Pediatric Dentistry: Factors Affecting Treatment Outcomes

  • Sungjoon Chung;Hyuntae Kim;Ji-Soo Song;Teo Jeon Shin;Hong-Keun Hyun;Young-Jae Kim;Jung-Wook Kim;Ki-Taeg Jang
    • Journal of the korean academy of Pediatric Dentistry
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    • v.51 no.3
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    • pp.245-264
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    • 2024
  • This research aimed to evaluate the outcomes of autotransplantation in both children and adolescents, with a focus on root growth, and determine the clinical and radiographic factors associated with the success rate. In this study, 73 teeth, autogenously transplanted in 63 patients, were examined over an observation period of 3.2 years on average. The mean age at the time of autotransplantation was 11.9 years. Based on the radiographic criteria, the success rate was 73.97% and the survival rate was 100%. Based on the radiographic criteria, the success rate was 73.97%, and the survival rate was 100%. A significant increase in root length was observed in the transplanted teeth with an open apex. An association was found between the success rate and use of bone graft and surgeon experience. In conclusion, greater clinical experience in autotransplantation (> 36 cases) and prohibiting the use of bone grafts may improve the prognosis of the transplanted teeth in children and adolescents.

A study on the North Korea's dentistry education system and its implication on the direction for integration of South and North Korea's dentistry education (북한의 치의학 교육 시스템을 통해 고찰해 본 남북한 치의학교육 통합방향에 대한 시사점)

  • Shin, Teo-Jeon;Han, Dong-Hun;Jin, Bo-Hyoung;Kim, Tae-Il;Lee, Jae-Il;Kim, Chong-Chul
    • The Journal of the Korean dental association
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    • v.53 no.10
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    • pp.726-731
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    • 2015
  • There are big differences in dental education system between South Korea and North Korea. In North Korea, there is no college of dentistry and official license system and thus, dentists can treat a patient right after graduation from medical school. There are also positions such as paradentists capable of providing dental treatments, whereas such positions do not exist in South Korea. In this regards, in order to get ready for the United Korea, we need to establish a system designed to complement the differences in dentistry education and license system between South and North Korea. Such system would help to minimize the social cost in relation to the unification in near future.

Comparison of the Ability to Mask the Color of Endodontic Filling Materials Using Several Types of Base Materials

  • Hyun-Ji Shin;Hyuntae Kim;Ji-Soo Song;Teo Jeon Shin;Young-Jae Kim;Jung-Wook Kim;Ki-Taeg Jang;Hong-Keun Hyun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.51 no.3
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    • pp.220-228
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    • 2024
  • In clinical pediatric dentistry, a base material with optical properties, including transparency, that can mask the color of the material used for root canal-filling is preferred. This study aimed to examine the optical properties of various base materials by thickness. The disk-shaped specimens were photopolymerized and fabricated using Ionosit (IN), TheraCal LC (TL), TheraCal PT (PT), and A2 shade of FiltekTM Supreme Flowable Restorative (FZ), Fuji II LC (FL), and KetacTM Fil (KF) with 1 and 2 mm thickness. The color parameters of these specimens were measured using a spectrophotometer on a black and white background and were measured using the same method on a mold containing Vitapex® and gutta-percha. The translucency parameter (TP) and color difference were calculated for each group. The Kruskal-Wallis and Bonferroni tests were used in the statistical analyses. The TP decreased when the thickness was 2 mm compared with 1 mm. The TP values of TL and PT were the lowest at all thicknesses. The TP values of 2 mm thickness in all molds filled with Vitapex® and gutta-percha were the lowest for TL, PT, KF, and IN. In TL and PT, the color difference before and after the application of the canal-filling material was the smallest, regardless of material thickness. Within the limits of this in vitro study, TL, PT, KF, and IN demonstrated better masking of the color of canal-filling material.

Epigenetics: general characteristics and implications for oral health

  • Seo, Ji-Yun;Park, Yoon-Jung;Yi, Young-Ah;Hwang, Ji-Yun;Lee, In-Bog;Cho, Byeong-Hoon;Son, Ho-Hyun;Seo, Deog-Gyu
    • Restorative Dentistry and Endodontics
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    • v.40 no.1
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    • pp.14-22
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    • 2015
  • Genetic information such as DNA sequences has been limited to fully explain mechanisms of gene regulation and disease process. Epigenetic mechanisms, which include DNA methylation, histone modification and non-coding RNAs, can regulate gene expression and affect progression of disease. Although studies focused on epigenetics are being actively investigated in the field of medicine and biology, epigenetics in dental research is at the early stages. However, studies on epigenetics in dentistry deserve attention because epigenetic mechanisms play important roles in gene expression during tooth development and may affect oral diseases. In addition, understanding of epigenetic alteration is important for developing new therapeutic methods. This review article aims to outline the general features of epigenetic mechanisms and describe its future implications in the field of dentistry.

Diagnostic challenges of nonodontogenic toothache

  • Park, Hyung-Ok;Ha, Jung-Hong;Jin, Myoung-Uk;Kim, Young-Kyung;Kim, Sung-Kyo
    • Restorative Dentistry and Endodontics
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    • v.37 no.3
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    • pp.170-174
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    • 2012
  • The objective of this article was to present two nonodontogenic conditions that may mimic odontogenic toothache: trigeminal neuralgia and burning mouth syndrome. Two cases are presented in which one is related to the upper left second premolar and the other is related to the upper left first molar. Both showed pain when chewing. These two cases highlight the complexities involved in diagnosing nonodontogenic toothache. This article demonstrates the importance of having a thorough knowledge of both odontogenic and nonodontogenic toothache, as well as the need for careful evaluation of the nature of the pain and history, clinical and radiographic examinations.