一体化玻璃纤维桩修复漏斗状根管粘接强度的体外研究
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摘要
目的:比较3种纤维桩(CAD/CAM一体化玻璃纤维桩、预成型玻璃纤维桩、光固化可塑性纤维桩)对漏斗状根管的粘接强度及温度循环对其粘接强度的影响。方法:90颗单根离体牙随机分为3组,分别采用CAD/CAM一体化玻璃纤维桩核、同种材料制成的预成型玻璃纤维桩、光固化可塑性纤维桩修复,粘结完成后,储存在37℃恒温去离子水中7 d,每组随机选取15颗离体牙进行温度循环。使用精密片切机制备微推出试验试件,万能力学试验机测试微推出粘接强度并使用体视显微镜分析破坏形式。结果:CAD/CAM一体化玻璃纤维桩核组:温度循环前根颈部、根中部、根尖部的粘接强度分别为(9.58±2.67)MPa、(8.62±2.62)MPa、(8.21±2.48)MPa,温度循环后根颈部、根中部、根尖部的粘接强度分别为(8.14±3.19)MPa、(6.43±2.47)MPa、(6.45±3.20)MPa;预成型纤维桩组:温度循环前根颈部、根中部、根尖部的粘接强度分别为(3.89±2.04)MPa、(4.83±1.23)MPa、(4.67±1.86)MPa,温度循环后根颈部、根中部、根尖部的粘接强度分别为(6.18±1.61)MPa、(5.15±1.94)MPa、(6.39±2.87)MPa;光固化可塑性纤维桩组:温度循环前根颈部、根中部、根尖部的粘接强度分别为(4.05±2.41)MPa、(1.75±1.70)MPa、(2.60±2.34)MPa,温度循环后根颈部、根中部、根尖部的粘接强度分别为(5.04±2.72)MPa、(1.96±1.70)MPa、(1.34±0.92)MPa。桩核类型、根管部位对粘接强度的影响具有统计学意义(P<0.05),与其他两组相比,一体化玻璃纤维桩核在根颈部、根中部、根尖部均具有最高的粘接强度。温度循环对3种纤维桩粘接强度的影响无统计学意义(P>0.05)。结论:一体化玻璃纤维桩核可能具有更好的粘接强度,粘接性能较好。
Objective: To compare the effects of three kinds of fiber posts( CAD/CAM one-piece glass fiber posts-and-cores,prefabricated glass fiber post and light curing plastic fiber post) on the bond strength of flared root canals and the effect of thermal cycling on their bond strength. Methods: Extracted human single teeth( n = 90) were endodontically treated and randomly divided into three groups( n = 30 each). The teeth were restored by three kinds of fiber post: CAD/CAM one-piece glass fiber posts-andcores,prefabricated posts and light curing plastic fiber post. Following post cementation,the specimens were stored in distilled water at 37 ℃ for 7 days. Half bonded specimens of each group were submitted to thermal cycling( 6 000 times,5 to 55 ℃) prior to micro-push-out bond strength test. Fabrication of micro-push-out bond strength test specimens was conducted by precision slicing machine. The micro-pushout bond strength was tested using a universal testing machine,and the failure modes were examined with a stereomicroscope. Results: In CAD/CAM one-piece glass fiber posts-and-cores group, the bond strength of cervical,middle and apical was( 9. 58 ± 2. 67) MPa,( 8. 62 ± 2. 62) MPa,( 8. 21 ± 2. 48)MPa respectively before thermal cycling,and after thermal cycling the bond strength of cervical,middle and apical was( 8. 14 ± 3. 19) MPa,( 6. 43 ± 2. 47) MPa,( 6. 45 ± 3. 20) MPa respectively. In prefabricated posts group,the bonding strength of cervical,middle and apical was( 3. 89 ± 2. 04) MPa,( 4. 83 ±1. 23) MPa,( 4. 67 ± 1. 86) MPa respectively before thermal cycling,and after thermal cycling the bond strength of cervical,middle and apical was( 6. 18 ± 1. 61) MPa,( 5. 15 ± 1. 94) MPa,( 6. 39 ± 2. 87)MPa respectively. In light curing plastic fiber post group,the bond strength of cervical,middle and apical before thermal cycling was( 4. 05 ± 2. 41) MPa,( 1. 75 ± 1. 70) MPa,( 2. 60 ± 2. 34) MPa respectively,and after thermal cycling the bond strength of cervical,middle and apical was( 5. 04 ± 2. 72)MPa,( 1. 96 ± 1. 70) MPa,( 1. 34 ± 0. 92) MPa respectively. Postal types and root canal regions were found to significantly affect the push-out bond strength. Compared with the other two groups,the onepiece glass fiber posts-and-cores had the highest bonding strength in the cervical,middle and apical.Temperature cycling has no significant effect on the micro push-out bond strength of three kinds of fiber posts. Conclusion: One-piece glass fiber posts-and-cores has better bonding strength and excellent bonding performance.
Objective: To compare the effects of three kinds of fiber posts( CAD/CAM one-piece glass fiber posts-and-cores,prefabricated glass fiber post and light curing plastic fiber post) on the bond strength of flared root canals and the effect of thermal cycling on their bond strength. Methods: Extracted human single teeth( n = 90) were endodontically treated and randomly divided into three groups( n = 30 each). The teeth were restored by three kinds of fiber post: CAD/CAM one-piece glass fiber posts-andcores,prefabricated posts and light curing plastic fiber post. Following post cementation,the specimens were stored in distilled water at 37 ℃ for 7 days. Half bonded specimens of each group were submitted to thermal cycling( 6 000 times,5 to 55 ℃) prior to micro-push-out bond strength test. Fabrication of micro-push-out bond strength test specimens was conducted by precision slicing machine. The micro-pushout bond strength was tested using a universal testing machine,and the failure modes were examined with a stereomicroscope. Results: In CAD/CAM one-piece glass fiber posts-and-cores group, the bond strength of cervical,middle and apical was( 9. 58 ± 2. 67) MPa,( 8. 62 ± 2. 62) MPa,( 8. 21 ± 2. 48)MPa respectively before thermal cycling,and after thermal cycling the bond strength of cervical,middle and apical was( 8. 14 ± 3. 19) MPa,( 6. 43 ± 2. 47) MPa,( 6. 45 ± 3. 20) MPa respectively. In prefabricated posts group,the bonding strength of cervical,middle and apical was( 3. 89 ± 2. 04) MPa,( 4. 83 ±1. 23) MPa,( 4. 67 ± 1. 86) MPa respectively before thermal cycling,and after thermal cycling the bond strength of cervical,middle and apical was( 6. 18 ± 1. 61) MPa,( 5. 15 ± 1. 94) MPa,( 6. 39 ± 2. 87)MPa respectively. In light curing plastic fiber post group,the bond strength of cervical,middle and apical before thermal cycling was( 4. 05 ± 2. 41) MPa,( 1. 75 ± 1. 70) MPa,( 2. 60 ± 2. 34) MPa respectively,and after thermal cycling the bond strength of cervical,middle and apical was( 5. 04 ± 2. 72)MPa,( 1. 96 ± 1. 70) MPa,( 1. 34 ± 0. 92) MPa respectively. Postal types and root canal regions were found to significantly affect the push-out bond strength. Compared with the other two groups,the onepiece glass fiber posts-and-cores had the highest bonding strength in the cervical,middle and apical.Temperature cycling has no significant effect on the micro push-out bond strength of three kinds of fiber posts. Conclusion: One-piece glass fiber posts-and-cores has better bonding strength and excellent bonding performance.
引文
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[2]Lu JH.Observation of fiber post repair failure[J].China Modern Medicine,2013,20(17):191-192.
[3]邹霖,于晋,丁莹,等.两种树脂桩修复方法对漏斗状根管粘结强度的影响[J].暨南大学学报(自然科学与医学版),2015,36(1):56-61
[4]Savi A,Manfredi M,Tamani M,et al.Use of customized fiber posts for the aesthetic treatment of severely compromised teeth:a case report[J].Dent Traumatol,2010,24(6):671-675.
[5]Vilkinis V,Juozasilinskas.Direct composite resin crown fabrication on a custom formed root canal post:Ever Stick POST[J].Stomatologija,2016,18(1):32-36.
[6]李智,王新知,高承志,等.计算机辅助设计与制作一体化玻璃纤维桩核修复漏斗状根管的抗疲劳和抗折性能[J].北京大学学报(医学版),2013,45(1):59-63.
[7]Gomes GM,Rezende ECD,Gomes OMM,et al.Influence of the resin cement thickness on bond strength and gap formation of fiber posts bonded to root dentin[J].J Adhes Dent,2014,16(1):71-78.
[8]Trushkowsky RD.Restoration of endodontically treated teeth:criteria and technique considerations[J].Quintessence Int,2014,45(7):557-559.
[9]Visuttiwattanakorn P,Suputtamongkol K,Angkoonsit D,et al.Microtensile bond strength of repaired indirect resin composite[J].J Adv Prosthodont,2017,9(1):38-44.
[10]Reis GR,Silva FP,Oliveiraogliari A,et al.An experimental thermally deposited coating for improved bonding to glass-fiber posts[J].J Adhes Dent,2017,19(1):49-57.
[11]苏靖.粘接层厚度对纤维桩粘接性能影响的实验研究及有限元分析[D].2015:1-8.
[12]Hou QQ,Gao YM,Sun L.Influence of fiber posts on the fracture resistance of endodontically treated premolars with different dental defects[J].Int J Oral Sci,2013,5(3):167-171.
[13]Gomes GM,Gomes OM,Reis A,et al.Effect of operator experience on the outcome of fiber post cementation with different resin cements[J].Oper Dent,2013,38(5):555-564.
[14]Skupien JA,Sarkisonofre R,Cenci MS,et al.A systematic review of factors associated with the retention of glass fiber posts[J].Braz Oral Res,2015,29(1):1-8.
[15]Mousavinasab SM,Farhadi A,Shabanian M.Effect of storage time,thermocycling and resin coating on durability of dentin bonding systems[J].Dent Res J(Isfahan),2009,6(1):29-37.
[16]Cekic-Nagas I,Sukuroglu E,Canay S.Does the surface treatment affect the bond strength of various fibre-post systems to resin-core materials[J].J Dent,2011,39(2):171-179.
[17]Erkut S,Gulsahi K,Caglar A,et al.Micro leakage in overflared root canals restored with different fiber reinforced dowels[J].Oper Dent,2008,33(1):96-105.
[18]Zicari F,Couthino E,De Munck J,et al.Bonding effectiveness and sealing ability of fiber-post bonding[J].Dent Mater,2008,24(7):967-977.
[19]Mjor IA,Smith MR,Ferrari M,et al.The structure of dentine in the apical region of human teeth[J].Int Endod J,2001,34(5):346-353.
[20]Kern M,Barloi A,Yang B.Surface conditioning influences zirconia ceramic bonding[J].J Dent Res,2009,88(9):817-822.
[21]Matsui N,Takagaki T,Sadr A,et al.The role of MDP in a bonding resin of a two-step self-etching adhesive system[J].Dent Mater J,2015,34(2):227-233.
[22]Deng D,Huang X,Huang C,et al.Effects of chlorhexidine on bonding durability of different adhesive systems using a novel thermoscycling method[J].Aust Dent J,2013,58(2):148-155.
[23]Albashaireh ZS,Ghazal M,Kern M.Effects of endodontic post surface treatment,dentin conditioning,and artificial aging on the retention of glass fiber-reinforced composite resin posts[J].J Prosthet Dent,2010,103(1):31-39.
[24]Vichi A,Vano M,Ferrari M.The effect of different storage conditions and duration on the fracture strength of three types of translucent fiber posts[J].Dent Mater,2008,24(6):832-838.
[25]Bell AML,Lassila LVJ,Kangasniemi I,et al.Bonding of fibrereinforced composite post to root canal dentin[J].J Dent,2005,33(7):533-539.
[2]Lu JH.Observation of fiber post repair failure[J].China Modern Medicine,2013,20(17):191-192.
[3]邹霖,于晋,丁莹,等.两种树脂桩修复方法对漏斗状根管粘结强度的影响[J].暨南大学学报(自然科学与医学版),2015,36(1):56-61
[4]Savi A,Manfredi M,Tamani M,et al.Use of customized fiber posts for the aesthetic treatment of severely compromised teeth:a case report[J].Dent Traumatol,2010,24(6):671-675.
[5]Vilkinis V,Juozasilinskas.Direct composite resin crown fabrication on a custom formed root canal post:Ever Stick POST[J].Stomatologija,2016,18(1):32-36.
[6]李智,王新知,高承志,等.计算机辅助设计与制作一体化玻璃纤维桩核修复漏斗状根管的抗疲劳和抗折性能[J].北京大学学报(医学版),2013,45(1):59-63.
[7]Gomes GM,Rezende ECD,Gomes OMM,et al.Influence of the resin cement thickness on bond strength and gap formation of fiber posts bonded to root dentin[J].J Adhes Dent,2014,16(1):71-78.
[8]Trushkowsky RD.Restoration of endodontically treated teeth:criteria and technique considerations[J].Quintessence Int,2014,45(7):557-559.
[9]Visuttiwattanakorn P,Suputtamongkol K,Angkoonsit D,et al.Microtensile bond strength of repaired indirect resin composite[J].J Adv Prosthodont,2017,9(1):38-44.
[10]Reis GR,Silva FP,Oliveiraogliari A,et al.An experimental thermally deposited coating for improved bonding to glass-fiber posts[J].J Adhes Dent,2017,19(1):49-57.
[11]苏靖.粘接层厚度对纤维桩粘接性能影响的实验研究及有限元分析[D].2015:1-8.
[12]Hou QQ,Gao YM,Sun L.Influence of fiber posts on the fracture resistance of endodontically treated premolars with different dental defects[J].Int J Oral Sci,2013,5(3):167-171.
[13]Gomes GM,Gomes OM,Reis A,et al.Effect of operator experience on the outcome of fiber post cementation with different resin cements[J].Oper Dent,2013,38(5):555-564.
[14]Skupien JA,Sarkisonofre R,Cenci MS,et al.A systematic review of factors associated with the retention of glass fiber posts[J].Braz Oral Res,2015,29(1):1-8.
[15]Mousavinasab SM,Farhadi A,Shabanian M.Effect of storage time,thermocycling and resin coating on durability of dentin bonding systems[J].Dent Res J(Isfahan),2009,6(1):29-37.
[16]Cekic-Nagas I,Sukuroglu E,Canay S.Does the surface treatment affect the bond strength of various fibre-post systems to resin-core materials[J].J Dent,2011,39(2):171-179.
[17]Erkut S,Gulsahi K,Caglar A,et al.Micro leakage in overflared root canals restored with different fiber reinforced dowels[J].Oper Dent,2008,33(1):96-105.
[18]Zicari F,Couthino E,De Munck J,et al.Bonding effectiveness and sealing ability of fiber-post bonding[J].Dent Mater,2008,24(7):967-977.
[19]Mjor IA,Smith MR,Ferrari M,et al.The structure of dentine in the apical region of human teeth[J].Int Endod J,2001,34(5):346-353.
[20]Kern M,Barloi A,Yang B.Surface conditioning influences zirconia ceramic bonding[J].J Dent Res,2009,88(9):817-822.
[21]Matsui N,Takagaki T,Sadr A,et al.The role of MDP in a bonding resin of a two-step self-etching adhesive system[J].Dent Mater J,2015,34(2):227-233.
[22]Deng D,Huang X,Huang C,et al.Effects of chlorhexidine on bonding durability of different adhesive systems using a novel thermoscycling method[J].Aust Dent J,2013,58(2):148-155.
[23]Albashaireh ZS,Ghazal M,Kern M.Effects of endodontic post surface treatment,dentin conditioning,and artificial aging on the retention of glass fiber-reinforced composite resin posts[J].J Prosthet Dent,2010,103(1):31-39.
[24]Vichi A,Vano M,Ferrari M.The effect of different storage conditions and duration on the fracture strength of three types of translucent fiber posts[J].Dent Mater,2008,24(6):832-838.
[25]Bell AML,Lassila LVJ,Kangasniemi I,et al.Bonding of fibrereinforced composite post to root canal dentin[J].J Dent,2005,33(7):533-539.