共查询到20条相似文献,搜索用时 15 毫秒
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T. Rdig C. Koberg S. Baxter F. Konietschke A. Wiegand M. Rizk 《International endodontic journal》2019,52(8):1173-1181
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Ex vivo evaluation of four final irrigation protocols on the removal of hard‐tissue debris from the mesial root canal system of mandibular first molars 下载免费PDF全文
G. B. Leoni M. A. Versiani Y. T. Silva‐Sousa J. F. B. Bruniera J. D. Pécora M. D. Sousa‐Neto 《International endodontic journal》2017,50(4):398-406
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Arpana Arthi Devi BDS PGDIP Paul V. Abbott BDSc MDS FRACDS 《Australian endodontic journal : the journal of the Australian Society of Endodontology Inc》2012,38(2):50-54
The objectives of this study were to determine the direction and pattern of flow of irrigating solutions inside simulated root canals with different irrigation needles; and to determine whether different needle designs increase the likelihood of irrigating solution passing through the apical foramen. Two types of needles were compared: a standard needle with a bevel and an open end, and a needle with a side opening and closed rounded tip. Observations of irrigant flow within the canals indicated that the side‐venting needle can be dangerous if the needle gauge is small and it reaches the full length of the canal, since this allowed irrigants to flow into the periapical area. With the standard needle, the fluid did not go beyond the tip of the needle when minimal irrigating pressure was employed. As the size of canal increased, the fluid did not extrude beyond the tip of both needles. However, if the needles bound in the canals, then the fluid was forced away from the needle tip, and the pressure applied to the syringe was directly proportional to the distance the fluid flowed away from the needle tip. Both side‐venting and standard needles can be used for irrigation safely and effectively if a dynamic irrigation technique (moving the needle up and down inside the canals while irrigating) is employed. 相似文献
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Non‐interventional 1‐year follow‐up study of peri‐implant soft tissues following previous soft tissue augmentation and crown insertion in single‐tooth gaps 下载免费PDF全文
Samuel Huber Marco Zeltner Christoph H. F. Hämmerle Ronald E. Jung Daniel S. Thoma 《Journal of clinical periodontology》2018,45(4):504-512
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