• 제목/요약/키워드: EndoActivator

검색결과 4건 처리시간 0.023초

근관세정 방법에 따른 수산화칼슘 제재의 제거 효율 비교 (A COMPARISON OF THE IRRIGATION SYSTEMS IN CALCIUM HYDROXIDE REMOVAL)

  • 은재승;박세희;조경모;김진우
    • Restorative Dentistry and Endodontics
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    • 제34권6호
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    • pp.508-514
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    • 2009
  • 이 실험의 목적은 근관 내에 충전된 수산화칼슘의 제거 시 치근단 1/3에서 기존의 근관세정법과 $EndoActivator^{(R)}$, $EndoVac^{(R)}$ 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 $EndoActivator^{(R)}$, $EndoVac^{(R)}$군이 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 $EndoActivator^{(R)}$, $EndoVac^{(R)}$ system과 같은 근관 세정법이 효과적인 대안이 될 수 있다는 결론을 얻었다.

EndoVac®과 EndoActivator®를 이용한 근관세척법의 Enterococcus faecalis 제거 효율 평가 (EVALUATION OF ENTEROCOCCUS FAECALIS REMOVAL EFFICACY OF THE ENDOVAC® AND ENDOACTIVATOR® INTRACANAL IRRIGATION METHODS)

  • 송승곤;박세희;조경모;김진우
    • Restorative Dentistry and Endodontics
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    • 제34권5호
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    • pp.390-396
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    • 2009
  • 이 실험의 목적은 $EndoVac^{(R)}$$EndoActivator^{(R)}$를 이용한 근관세척시 근관 내 접종된 Enterococcus faecalis의 제거 효율을 기존의 irrigation needle을 이용한 방법과 비교 평가하고자 함이다. 발거된 70개의 단근치를 사용하였으며 .04 taper ProFile #40까지 근관형성 후 치아를 멸균하고 근관에 E. faecalis를 접종하고 배양하였다. 치아는 근관세척 방법에 따라 20개씩 3개의 실험군과 2개의 대조군으로 나누었다. 2.5% 치아염소산나트륨을 사용하여 근관세척 시행 후 일차 표본을 채취하였고, 다시 근관 내에 배양액을 채우고 24시간 동안 배양 후 이차 표본을 채취하였다. 표본은 colony forming units (CFU) 값을 얻기 위해 BHI agar plate에 배양하였다. 일차 표본 결과에서는 모든 실험치아 중 기존의 근관세척 방법을 이용한 하나의 근관에서 양성 배양을 보였다. 이차 표본 결과에서는 $EndoVac^{(R)}$ 실험군에서 가장 적은 양성 배양을 보였으며, 기존의 근관세척 방법과 비교시 통계적으로 유의한 차이를 보였다. 실험 결과에 따르면 $EndoVac^{(R)}$은 근관 내 접종된 E. faecalis의 제거에 있어 기존의 근관세척 방법보다 더 좋은 효율을 보였다.

A new phantom to evaluate the tissue dissolution ability of endodontic irrigants and activating devices

  • Kimia Khoshroo ;Brinda Shah;Alexander Johnson ;John Baeten ;Katherine Barry;Mohammadreza Tahriri ;Mohamed S. Ibrahim;Lobat Tayebi
    • Restorative Dentistry and Endodontics
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    • 제45권4호
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    • pp.45.1-45.8
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    • 2020
  • Objective: The aim of this study was to introduce a gelatin/bovine serum albumin (BSA) tissue standard, which provides dissolution properties identical to those of biological tissues. Further, the study evaluated whether the utilization of endodontic activating devices led to enhanced phantom dissolution rates. Materials and Methods: Bovine pulp tissue was obtained to determine a benchmark of tissue dissolution. The surface area and mass of samples were held constant while the ratio of gelatin and BSA were varied, ranging from 7.5% to 10% gelatin and 5% BSA. Each sample was placed in an individual test tube that was filled with an appropriate sodium hypochlorite solution for 1, 3, and 5 minutes, and then removed from the solution, blotted dry, and weighed again. The remaining tissue was calculated as the percent of initial tissue to determine the tissue dissolution rate. A radiopaque agent (sodium diatrizoate) and a fluorescent dye (methylene blue) were added to the phantom to allow easy quantification of phantom dissolution in a canal block model when activated using ultrasonic (EndoUltra) or sonic (EndoActivator) energy. Results: The 9% gelatin + 5% BSA phantom showed statistically equivalent dissolution to bovine pulp tissue at all time intervals. Furthermore, the EndoUltra yielded significantly more phantom dissolution in the canal block than the EndoActivator or syringe irrigation. Conclusions: Our phantom is comparable to biological tissue in terms of tissue dissolution and could be utilized for in vitro tests due to its injectability and detectability.

Comparison of the mechanical efficacy of sonic activated irrigation and passive ultrasonic irrigation for intracanal medicaments removal

  • Jang, Ju-Kyong;Kwak, Sangwon;Choi, Ga Young;Ha, Jung-Hong;Choi, Sung-Baik;Kim, Hyeon-Cheol
    • 대한치과의사협회지
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    • 제53권10호
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    • pp.743-750
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    • 2015
  • Objectives: This study compared the mechanical efficacy of sonic activated and passive ultrasonic irrigation for removing intracanal medicament from a simulated root canal under controlled conditions. Materials and Methods: Thirty simulated root canal in resin blocks were randomly divided into 3-groups. The canals were enlarged using ProTaper files and K3XF (#30/0.06). After cleaning and drying, canals were filled with Calcipex. Overfilled materials were wiped out and measured their weight to the unit of 1/10mg. After one week storage in 100% humidity $37^{\circ}C$ temperature, canals were irrigated using 20mL of saline with one of following methods according to the designated groups (n = 10). For group-NI, 30-gauge nickel-titanium irrigation needle was used. During irrigation with every 5mL, needle was moved in-and-out with 4-mm amplitudes. EndoActivator and ultrasonic tip were used for group-EA and group-UT respectively for 20 seconds after every 5mL irrigation using needle. Then the weight was measured again to calculate the weight of residual remnants. The data were analyzed by one-way ANOVA and Duncan's post-hoc test at a significance level of 95%. Results: The weight of the residual medicaments were $3.62{\pm}0.81mg$, $2.84{\pm}0.28mg$, and $2.73{\pm}0.90mg$ for group-NI, -EA, and -UT, respectively. Group-EA and group-UT had no significant differences to remove intracanal medicament and left significantly less amount of paste than group-NI (p < 0.05). Conclusions: Under the controlled conditions of this study, the sonic activation and PUI have similar mechanical efficacy for removing intracanal medicament.