Bond strength of a 3-step total-etch bonding system to dentine - An improved approach.

• Tác giả: B W Darvell, M A Hadis, H Hassan Elnadif, W Palin
• Ngôn ngữ: eng
• Ký hiệu phân loại: 201.4 General classes of religion
• Thông tin xuất bản: England : Dental materials : official publication of the Academy of Dental Materials , 2025
• Bộ sưu tập: NCBI
• ID: 200810

Tóm tắt

 BACKGROUND: Generally, the bonding of one material to another is important for function, and especially in so-called 'adhesive dentistry'. However, there are concerns about the clinical relevance and the discriminatory power of currently employed tests of bond strength. OBJECTIVE: Develop and validate a test protocol based on 4-point bending that may be used to examine the bonding of various dental materials to a range of substrates. The bonding of a resin-based composite (RBC) to dentine is taken as an example. METHODS: Slices of dentine 'coupons' (5.0 × 2.0 × ∼4-6 mm RESULTS: Flexural strengths in MPa: N: 1.38 ± 0.56
  P: 9.82 ± 0.89
  A: 5.12 ± 0.73
  E: 9.39 ± 1.78
  E + P: 21.03 ± 2.63
  E + A: 12.80 ± 1.53
  P + A: 17.16 ± 3.03
  E + P + A: 20.84 ± 3.93. The treatment main effects (all, p <
  10 CONCLUSION: With good reproducibility (low scatter), discriminatory power (clear treatment effects), economy with regard to substrates, the method has the potential to be adaptable to many systems.