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1. 发明授权

EP3429504B1 NON-CIRCULAR ENDODONTIC INSTRUMENTS 有权
公开(公告)号：EP3429504B1
公开(公告)日：2020-08-19
申请号：EP17767155.9
申请日：2017-03-01
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： MUSIKANT, Barry, L.
IPC分类号： A61C5/42

2. 发明公开

EP0806916A4 SLOTTED TAP AND LENTULO DRILL FOR DENTAL POST SYSTEM 失效
标题翻译： GESPLITZTER GEWINDEBOHRER UND LENTULO-BOHRERFÜRZAHNWURZELSTIFT-SYSTEM
公开(公告)号：EP0806916A4
公开(公告)日：2000-04-05
申请号：EP96904484
申请日：1996-01-25
申请人： ESSENTIAL DENTAL SYSTEMS INC
发明人： MUSIKANT BARRY L , DEUTSCH ALLAN S , COHEN BRETT I
IPC分类号： A61C5/00 , A61C5/02 , A61C5/04 , A61C13/30 , A61C13/38 , A61C8/00
CPC分类号： A61C13/30 , A61C5/35 , A61C5/40 , A61C5/50
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).
摘要翻译：一种包括在其顶端（43）处具有反螺旋构造的螺旋形线（41）的减径钻（37），用于在插入牙柱（51）之前限制水泥放置在柱孔（17）中。

3. 发明公开

EP0806916A1 SLOTTED TAP AND LENTULO DRILL FOR DENTAL POST SYSTEM 失效
标题翻译： GESPLITZTER水龙头和Lentulo钻齿根笔系统
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
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： MUSIKANT, Barry, L. , DEUTSCH, Allan, S. , COHEN, Brett, I.
IPC分类号： A61C5 , A61C13
CPC分类号： A61C13/30 , A61C5/35 , A61C5/40 , A61C5/50
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).

4. 发明公开

EP0746263A1 FABRICATION SYSTEM OF DENTAL CAST POST 失效
标题翻译：生产系统牙印模
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
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： COHEN, Brett, I. , DEUTSCH, Allan, S.
IPC分类号： A61C13 , A61K6
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.

5. 发明授权

EP1075228B1 NON CIRCULAR ENDODONTIC INSTRUMENTS 有权
标题翻译：非圆ENDODONTOISCHE INSTRUMENTS
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
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： COHEN, Brett, I. , MUSIKANT, Barry, L.
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.

6. 发明授权

EP0631598B1 COMPOSITE DENTAL CEMENT COMPOSITION CONTAINING A LANTHANIDE SERIES COMPOUND 失效
标题翻译： LABORATORY复合水泥组合物，包括镧系的化合物
公开(公告)号：EP0631598B1
公开(公告)日：1998-12-23
申请号：EP93904868.2
申请日：1993-01-21
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： COHEN, Brett, I. , ACHAN, Douglas, M.
IPC分类号： C08K3/10 , A61K6/083
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.

7. 发明公开

EP0608361A1 ROOT CANAL FILLING MATERIAL AND ADHESIVE COMPOSITION 失效
标题翻译：根管填充和粘合剂组合物。
公开(公告)号：EP0608361A1
公开(公告)日：1994-08-03
申请号：EP92922538.0
申请日：1992-10-09
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： COHEN, Brett, I. , MUSIKANT, Barry, L.
IPC分类号： A61K6 , A61C19
CPC分类号： A61K6/002 , A61C19/042 , A61K6/0038 , C08L75/04 , C08L63/00
摘要： On décrit une composition destinée au traitement endodontique d'un canal radiculaire. La composition utilise une matière à base de résine thermodurcie susceptible d'être introduite dans le canal radiculaire d'un patient dentaire, ainsi qu'une matière adhésive servant à maintenir la matière à base de polymère dans le canal radiculaire. La matière à base de résine thermodurcie et/ou la matière adhésive sont conductrices. En conséquence, le dentiste est à même de déterminer où se situe l'apex de la racine en mesurant la conductance entre la matière à base de résine et la muqueuse buccale et le desmodonte. Ceci rend plus aisée l'obturation du canal radiculaire à l'aide de la matière à base de polymère.

8. 发明公开

EP0476110A4 COMPOSITE DENTAL CEMENT COMPOSITION CONTAINING TITANIUM 失效
标题翻译：包含钛酸盐的复合牙本质水泥组合物
公开(公告)号：EP0476110A4
公开(公告)日：1992-11-25
申请号：EP91907360
申请日：1991-02-21
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： COHEN, BRETT, I. , DEUTSCH, ALLAN, S. , SHARMA, BRAHMA, D.
IPC分类号： A61K6/08 , A61K6/04 , A61K6/083 , A61K6/087 , C08J3/12 , C08K3/40 , C08L63/00
CPC分类号： A61K6/083 , A61K6/04 , A61K6/087 , C08L33/10 , 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 titanium in an amount between about 1 and 15 weight percent. The titanium ingredient chemically interacts with the polymer matrix in order to increase compressive strength of the cement composition. A fluoride compound may be added in order to substantially eliminate caries and further tooth decay.

9. 发明公开

EP3957295A1 BIOMIMETIC MINERAL BASED ENDODONTIC CEMENT COMPOSITION 审中-实审
公开(公告)号：EP3957295A1
公开(公告)日：2022-02-23
申请号：EP21201363.5
申请日：2017-05-11
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： Guzman, Jason Edward
IPC分类号： A61K6/887 , A61K6/25 , A61K6/52 , A61K6/54 , A61K6/69 , A61K6/856 , A61K6/864 , A61K6/878
摘要： Disclosed are biomimetic mineral based endodontic cement compositions. An endodontic cement comprises a paste A and a paste B. The paste A comprises a pozzolanic cementitious mineral paste and the paste B is a mixture comprising polyanionic polymers, phosphates, cement setting modulators, host-inclusion particles, bioactive glasses, and radiopacity agents suspended in a liquid carrier.

10. 发明公开

EP1075228A1 NON CIRCULAR ENDODONTIC INSTRUMENTS 有权
标题翻译：非圆形内窥镜器械
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
申请人： ESSENTIAL DENTAL SYSTEMS, INC.
发明人： COHEN, Brett, I. , MUSIKANT, Barry, L.
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。

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