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Susceptibility of contemporary single-bottle self-etch dentine adhesives to intrinsic water permeation

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单位: [1]Sao Paulo State Univ UNESP, Dept Restorat Dent, Inst Sci & Technol, Sao Paulo, Brazil [2]Sun Yat Sen Univ, Dept Operat Dent & Endodont, Guanghua Sch Stomatol, Guangzhou, Guangdong, Peoples R China [3]Sun Yat Sen Univ, Guangdong Prov Key Lab Stomatol, Guangzhou, Guangdong, Peoples R China [4]Huazhong Univ Sci & Technol, Tongji Hosp, Dept Stomatol, Tongji Med Coll, Wuhan, Hubei, Peoples R China [5]Sichuan Univ, West China Hosp Stomatol, State Key Lab Oral Dis, Chengdu, Sichuan, Peoples R China [6]Augusta Univ, Dent Coll Georgia, Dept Endodont, Augusta, GA USA [7]Fourth Mil Med Univ, State Key Lab Mil Stomatol, Sch Stomatol, Xian, Shaanxi, Peoples R China [8]Fourth Mil Med Univ, Natl Clin Res Ctr Oral Dis, Sch Stomatol, Xian, Shaanxi, Peoples R China [9]Fourth Mil Med Univ, Shaanxi Key Lab Oral Dis, Sch Stomatol, Dept Prosthodont, Xian, Shaanxi, Peoples R China
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关键词: Bond strength Dentine bonding agents Dentine permeability Degradation Hybrid layer Pulpal pressure

摘要:
Objectives: To evaluate the effect of intrinsic water permeation on the microtensile bond strengths of different adhesive systems to dentine and the quality of resin-dentine interfaces. Methods: Ninety-six non-carious human third molars were divided into 4 groups: Clearfil S3 Bond Plus (CSBP; Kuraray); Clearfil S3 Bond (C3S; Kuraray); iBond Self-Etch (IB; Heraeus-Kulzer) and Prime & Bond NT (PB, control etch-and-rinse adhesive, Dentply-Sirona). For each adhesive, specimens from one subgroup (N=10) were bonded using zero pulpal pressure, while specimens from the other subgroup (N=10) were bonded using 15 cm water pressure (PP). Each bonded tooth was sectioned into 1 x1 mm sticks and stressed to failure. Data were analysed using two-way ANOVA and Holm-Sidak pairwise comparisons to examine the effects of "adhesive", "pulpal pressure" and their interaction on bond strength (a=0.05). Representative fractured sticks were examined by SEM. The remaining tooth slabs in each subgroup were used for TEM and CLSM. Results: Microtensile bond strengths (mean +/- SD; in MPa) were: 33.4 +/- 6.9 (CSBP), 33.2 +/- 4.7 (CSBP-PP), 35.0 +/- 8.6 (C3S), 25.5 +/- 7.3 (C3S-PP), 18.4 +/- 4.0 (IB), 16.5 +/- 6.9 (IB-PP), 28.2 +/- 5.5 (PB), 20.5 +/- 7.2 (PB-PP). "Adhesive-type" (P < 0.001), "pulpal-pressure" (P < 0.001) and their interactions (P < 0.001) significantly affected bond strength results. No difference between no-PP and PP subgroups was found for CSBP and IB (P > 0.05). Water droplets were identified along the resin-dentine interface for IB, IB-PP and C3S-PP. Conclusion: IB exhibits water sensitivity when bonding is performed with/without pulpal pressure. C3S exhibits water sensitivity when bonding is performed with pulpal pressure. CSBP does not exhibit water sensitivity when bonding is performed with/without pulpal pressure. Clinical significance: Intrinsic water permeation during bonding procedures significantly affects bond strength results and the resin-dentine interface of contemporary single-bottle self-etch dentine adhesive systems.

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出版当年[2016]版:
大类 | 3 区 医学
小类 | 2 区 牙科与口腔外科
最新[2025]版:
大类 | 2 区 医学
小类 | 1 区 牙科与口腔外科
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出版当年[2015]版:
Q1 DENTISTRY, ORAL SURGERY & MEDICINE
最新[2023]版:
Q1 DENTISTRY, ORAL SURGERY & MEDICINE

影响因子: 最新[2023版] 最新五年平均 出版当年[2015版] 出版当年五年平均 出版前一年[2014版] 出版后一年[2016版]

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第一作者单位: [1]Sao Paulo State Univ UNESP, Dept Restorat Dent, Inst Sci & Technol, Sao Paulo, Brazil
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通讯机构: [7]Fourth Mil Med Univ, State Key Lab Mil Stomatol, Sch Stomatol, Xian, Shaanxi, Peoples R China [8]Fourth Mil Med Univ, Natl Clin Res Ctr Oral Dis, Sch Stomatol, Xian, Shaanxi, Peoples R China [9]Fourth Mil Med Univ, Shaanxi Key Lab Oral Dis, Sch Stomatol, Dept Prosthodont, Xian, Shaanxi, Peoples R China
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