-
公开(公告)号：EP0806916A1
公开(公告)日：1997-11-19
申请号：EP96904484.0
申请日：1996-01-25
摘要： A method and system for inserting a dental post (51) into a tooth root canal is provided. The method comprises the steps of cutting out a post hole (17) in the tooth (11) and inserting a threaded tap (19) into the post hole (17) for creating at least one groove (45) along the hole (17). Significantly, the tap (19) includes at least one slot (31) defined by a pair of flexible legs (27, 29) and running at least a portion of the length thereof for reducing stress along the post hole (17) during threaded insertion. Also provided is a lentulo drill (37) comprising a spiraled wire (41) with a reverse spiral configuration at the apical end (43) thereof for confining cement placement in the post hole (17) prior to insertion of the dental post (51).
-
公开(公告)号：EP0746263A1
公开(公告)日：1996-12-11
申请号：EP94930006.0
申请日：1994-09-29
CPC分类号： A61K6/083 , A61C13/0003 , A61C13/30
摘要： A method and system for preparing a cast post and core in a dental root canal procedure is provided. The method comprises the steps of removing the root canal material from the tooth (49); cutting out a posthole (47) in the tooth having a substantially uniform width; cutting out at least one annular tier (56) along the hole (47); placing a burnout post (61) having at least one flange (67) into the posthole (47) so that the flange (67) is seated on the annular tier (56); applying an acrylic resin onto the tooth and over the burnout post (61) in order to form a core (75), and finally removing the core (75) with the burnout post (61) from the tooth in order to form a casting.
-
公开(公告)号：EP0608361B1
公开(公告)日：2001-03-14
申请号：EP92922538.1
申请日：1992-10-09
CPC分类号： A61K6/002 , A61C19/042 , A61K6/0038 , C08L75/04 , C08L63/00
摘要： A composition for endodontically treating a root canal is provided. The composition uses a thermoset resin based material adapted for insertion into the root canal of a dental patient and an adhesive material suitable for maintaining the polymer based material in the root canal. Either one or both of the thermoset resin based material and the adhesive material is conductive. As a result, the dental practitioner is able to determine where the apex of the root canal is located by means of measuring the conductance between the thermoset resin based material and the oral mucosa and periodontal ligament. This facilitates the filling of the root canal with the polymer based material.
-
公开(公告)号：EP0575535A1
公开(公告)日：1993-12-29
申请号：EP92909001.0
申请日：1992-03-09
CPC分类号： A61Q11/00 , A61K8/4913 , A61K8/8123 , A61K8/87
摘要： On décrit une composition destinée à empêcher l'accumulation de plaque dentaire et d'autres débris sur la surface des prothèses et implants dentaires. La composition renferme environ 46 % à 98 % en poids d'un solvant, environ 0,5 à 25 % en poids d'un composé volatil par exemple la N-méthylpyrrolidone, environ 1 à 35 % en poids d'une résine polyuréthane et environ 0,5 à 20 % en poids d'un composé poly(fluoro) par exemple le polytétra-fluoréthylène.
-
公开(公告)号：EP1075228A1
公开(公告)日：2001-02-14
申请号：EP00910000.9
申请日：2000-01-28
IPC分类号： A61C5/02
CPC分类号： A61C5/42
摘要： A non-circular endodontic instrument (110) is provided for reduced stress to the tooth, and to the cutting instrument during the removal of dentin from a root canal. The non-circular endodontic instrument (110) includes at least one area of non-contact (140), i.e., one portion of the instrument does not contact, and does not cut the dentin material. The non-contact area (140) extends the length of the endodontic instrument (110), about a portion of the circumference of the instrument, and interrupts a generally circular cutting face (120) of the instrument. This non-contact area (140) reduces stress, provides a place for debris to gather during cutting so as to not interfere with the cutting face (120), and serves to direct the debris out of the root canal. The endodontic instrument (110) can be D-shaped in cross-section. It could have circumferential opposing non-contact, areas and/or can be elliptical in cross-sectional shape.
摘要翻译： 提供非圆形牙髓器械（110），用于在从牙根管移除牙本质的过程中减小对牙齿的应力以及对切割器械的应力。 非圆形牙髓器械（110）包括至少一个非接触区域（140），即器械的一部分不接触并且不切割牙质材料。 非接触区域（140）围绕器械的圆周的一部分延伸牙髓器械（110）的长度并且中断器械的大致圆形的切割面（120）。 该非接触区域（140）减小了应力，在切割过程中为碎屑提供了一个聚集的位置，以便不干扰切割面（120），并且用于将碎屑导出根管。 牙髓器械（110）的横截面可以是D形的。 它可以具有周向相对的非接触区域和/或可以是椭圆形的横截面形状。
-
6.发明公开
公开(公告)号：EP0631598A1
公开(公告)日：1995-01-04
申请号：EP93904868.0
申请日：1993-01-21
IPC分类号： A61K6
CPC分类号： A61K6/083 , A61K6/0044 , A61K6/087 , C08L33/00 , C08L63/00
摘要： A composite dental cement composition that is suitable for application with dental posts for either post insertion in a tooth or during core formation is provided. The cement composition includes a polymer matrix in an amount between about 15 and 50 weight percent, a filler in an amount between about 35 and 80 weight percent, and a lanthanide series compound in an amount between about 1 and 20 weight percent. The lanthanide series compound chemically interacts or pushes the air voids out between with the polymer matrix in order to increase compressive strength of the cement composition. Titanium powder may be added in order to increase compressive strength. A fluoride compound may further be added in order to substantially eliminate caries and further tooth decay.
摘要翻译： 提供了一种复合牙科粘固剂组合物，该组合物适用于与牙齿桩一起插入牙齿中或芯形成期间。 该水泥组合物包含约15至50重量％的量的聚合物基体，约35至80重量％的量的填料和约1至20重量％的镧系元素化合物。 镧系元素化合物与聚合物基体之间化学相互作用或推动空隙以提高水泥组合物的压缩强度。 可以加入钛粉以增加压缩强度。 可以进一步加入氟化物以基本消除龋齿和进一步的龋齿。
-
公开(公告)号：EP0806916B1
公开(公告)日：2002-07-24
申请号：EP96904484.1
申请日：1996-01-25
摘要： A method and system for inserting a dental post (51) into a tooth root canal is provided. The method comprises the steps of cutting out a post hole (17) in the tooth (11) and inserting a threaded tap (19) into the post hole (17) for creating at least one groove (45) along the hole (17). Significantly, the tap (19) includes at least one slot (31) defined by a pair of flexible legs (27, 29) and running at least a portion of the length thereof for reducing stress along the post hole (17) during threaded insertion. Also provided is a lentulo drill (37) comprising a spiraled wire (41) with a reverse spiral configuration at the apical end (43) thereof for confining cement placement in the post hole (17) prior to insertion of the dental post (51).
-
公开(公告)号：EP0575535B1
公开(公告)日：1996-09-25
申请号：EP92909001.7
申请日：1992-03-09
CPC分类号： A61Q11/00 , A61K8/4913 , A61K8/8123 , A61K8/87
摘要： A composition for preventing the build-up of plaque and other debris along the surface of dentures and dental implants is provided. The composition includes a solvent in an amount between about 46 and 98 weight percent, a volatile compound such as N-methylpyrrolidone in an amount between about 0.5 and 25 weight percent, a polyurethane resin in an amount between about 1 and 35 weight percent and a poly(fluoro) compound such as polytetra-fluoroethylene in an amount between about 0.5 and 20 weight percent.
-
公开(公告)号：EP0476110A1
公开(公告)日：1992-03-25
申请号：EP91907360.0
申请日：1991-02-21
IPC分类号： A61K6
摘要： Composition de ciment dentaire composite adapté pour une application avec des implants dentaires soit pour l'insertion de l'implant dans une dent soit pendant la formation de lames. La composition de ciment comprend une matrice polymère en une quantité comprise entre environ 15 et 50 % en poids, une matière de remplissage en une quantité comprise entre environ 35 et 80 % en poids, et du titane en une quantité comprise entre environ 1 et 15 % en poids. L'ingrédient de titane a une interaction chimique avec la matrice polymère afin d'augmenter la résistance à la compression de la composition de ciment. On peut ajouter un composé de fluorure afin d'éliminer les caries et la dégradation de l'état des dents.
-
公开(公告)号：EP1075228B1
公开(公告)日：2004-01-07
申请号：EP00910000.9
申请日：2000-01-28
IPC分类号： A61C5/02
CPC分类号： A61C5/42
摘要： A non-circular endodontic instrument (110) is provided for reduced stress to the tooth, and to the cutting instrument during the removal of dentin from a root canal. The non-circular endodontic instrument (110) includes at least one area of non-contact (140), i.e., one portion of the instrument does not contact, and does not cut the dentin material. The non-contact area (140) extends the length of the endodontic instrument (110), about a portion of the circumference of the instrument, and interrupts a generally circular cutting face (120) of the instrument. This non-contact area (140) reduces stress, provides a place for debris to gather during cutting so as to not interfere with the cutting face (120), and serves to direct the debris out of the root canal. The endodontic instrument (110) can be D-shaped in cross-section. It could have circumferential opposing non-contact, areas and/or can be elliptical in cross-sectional shape.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.011 秒)
