• Title/Summary/Keyword: Transient apical breakdown

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Pulp necrosis following luxated injury to teeth in a patient with uncontrolled type II diabetes mellitus: a case report (비조절성 제2형 당뇨 환자의 치아 탈구 손상에 따른 치수 괴사: 증례 보고)

  • Shin, Han-Eol;Lee, Seung-Jong;Jung, Il-Young;Lee, Chan-Young
    • Restorative Dentistry and Endodontics
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    • v.37 no.1
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    • pp.61-65
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    • 2012
  • Patients with diabetes mellitus show delayed wound healing and increased susceptibility to infection. Therefore, the effects of diabetes on pulpal and periodontal healing should be taken into consideration when treating diabetic dental traumatized patients. This case presents the treatment for dental traumatized 20 yr old female with uncontrolled type II diabetes. The traumatized upper central incisors had showed pulpal healing in early days. However, 7 mon after the trauma, the teeth had been diagnosed with pulp necrosis with apical abscess. Eventually, non surgical root canal treatment on the teeth had been performed.

CONTINUED APEXOGENESIS ON TRAUMA INDUCED NONVITAL IMMATURE PERMANENT TOOTH (외상으로 실활된 미성숙 영구치에서의 계속된 치근 형성)

  • Kang, Yu-Jin;Kim, Hye-Young;Kim, Young-Jin;Kim, Hyun-Jung;Nam, Soon-Hyeun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.36 no.4
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    • pp.640-646
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    • 2009
  • In case of luxation injuries, loss of tooth vitality is common. And in case of trauma in the immature permanent teeth, precise diagnosis of pulp necrosis is very difficult. That is because limitation in distinguishing between normal dental papilla in immature permanent teeth, transient apical breakdown(TAB), which is part of normal healing process, and apical radiolucency in pulp necrosis. Especially in non-vital immature permanent tooth, the treatment is complex and requires long time. This clinical case report shows that severely infected immature teeth with periradicular periodontitis can undergo healing and apexogenesis or maturogenesis with no definative treatment or after conservative treatment. In the cases reported, we emphasize the considerable power of regeneration of the tooth, probably due to its large number of undifferentiated mesenchymal cells in the dental papilla, pulp tissue, periodontal ligament tissues. Thus, when endodontic treatment in immature permanent teeth, over instrumentation is not recommend for preserve the apical vital stem cells.

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