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근관세정 방법에 따른 수산화칼슘 제재의 제거 효율 비교
은재승,박세희,조경모,김진우 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.6
The purposes of this study were to compare the efficacy of irrigation systems by removing a calcium hydroxide (Ca(OH)₂) paste from the apical third of the root canal and the effect of the patency file. Sixty single rooted human teeth were used in this study. The canals were instrumented by a crown-down manner with .04 taper ProFile to ISO #35. Ca(OH)₂ and distilled water were mixed and placed inside the root canals. The teeth were divided into 6 groups according to the root canal irrigation system and the use of patency file as follows: group 1 - conventional method: group 2 - EndoActivator : group 3 - EndoVac; group 4 - conventional method, patency: group 4 - EndoActivator, patency; group 6 - EndoVac, patency. All teeth were irrigated with sodium hypochlorite. After the root canal irrigation, the teeth were split in bucco-lingual aspect. Percentage of the root canal surface coverage with residual Ca(OH)₂ until 3 mm from working length was analyzed using Image Pro Plus ver. 4.0. Statistical analysis was performed using the One-way ANOVA, t-test and Scheffe's post-hoc test. Conventional groups had significantly more Ca(OH)₂ debris than EndoActivator, EndoVac groups. There was no significant difference between EndoActivator, and EndoVac groups. Groups with patency file showed more effective in removing Ca(OH)₂ paste than no patency groups. but. it was no significant difference. This study showed that EndoActivator and EndoVac systems were more effective in removing Ca(OH)₂ paste from the apical third of the root canal than conventional method. 이 실험의 목적은 근관 내에 충전된 수산화칼슘의 제거 시 치근단 1/3에서 기존의 근관세정법과 EndoActivator, EndoVac system의 세정 효율을 비교하고, 근관 세정 중 치근단공 개방 확인의 영향에 대해 평가하고자 함이다. 60개의 단근치를 사용하였고 ISO #35까지 근관성형 후 수산화칼슘을 충전하였다. 근관 세정법과 치근단공 개방 확인 유무에 따라 6개 실험군으로 나누어 세정하였다. 실험 치아를 양분하여 치근단 3 mm에서 근관 면적에 대한 잔존 수산화칼슘 면적의 백분율을 측정하였다. 실험결과 EndoActivator, EndoVac군이 기존의 근관 세정법 군에 비해 유의하게 높은 제거효율을 나타냈으며 (p<0.05), 치근단공 개방 확인 유무에 따른 유의한 차이는 나타나지 않았다. 이 실험 결과에 따르면 기존의 근관세정법으로 효과적인 세정이 불가능했던 근관의 치근단 1/3부위에서 EndoActivator, EndoVac system과 같은 근관 세정법이 효과적인 대안이 될 수 있다는 결론을 얻었다.
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김병수,은재승,김봉철,윤정훈 대한구강악안면병리학회 2019 대한구강악안면병리학회지 Vol.43 No.4
Intravascular papillary endothelial hyperplasia (IPEH) is an unusual reactive benign lesion of vascular origin caused by endothelial cell proliferation, which rarely occurs in oral cavity. IPEH appears in various forms because it has non-specific clinical presentation, so it can be misdiagnosed as a malignant lesion.Therefore, it is important to make a differential diagnosis by understanding the characteristics of this lesion.We report a case of IPEH in a 22-year-old Korean female patient, discussing about differential diagnosis and treatment. This report presents review of literature and describes a case of IPEH.
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문성호,조성연,은재승,이준,윤정훈 대한구강악안면병리학회 2019 대한구강악안면병리학회지 Vol.43 No.3
Calcifying Epithelial OdontogenicTumor(CEOT), also known as Pindborg tumor is a rare lesion comprising about 1% of all odontogenic tumors mostly rising in the posterior of the mandible. It generally occurs in patients between 30-60 years old. This paper describes a case of CEOT in a 17 year-old female affecting the right mandible. Histopathologic findings showed sheets of polygonal tumor cells and pools of amorphous, eosinophilic amyloids with calcifications. 1 year after resection of the tumor, no clinical and radiographic signs of recurrence were observed.
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