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Related Experiment Videos

Effect of operator variability on dentin adhesion: students vs. dentists

H Sano1, N Kanemura, M F Burrow

  • 1Department of Operative Dentistry, Hokkaido University School of Dentistry, Sapporo, Japan.

Dental Materials Journal
|July 15, 1998
PubMed
Summary

Operator variability significantly impacts dentin bonding systems. While dentists showed no difference between Clearfil Liner Bond II (LB II) and Scotchbond Multi-Purpose (MP), students achieved greater strength with LB II.

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Effects of dentin depth and cavity configuration on bond strength.

Journal of dental research·1999

Area of Science:

  • Dental Materials Science
  • Adhesive Dentistry

Background:

  • Operator variability is a critical factor in the clinical success of dentin bonding systems.
  • Understanding technique sensitivity is crucial for predictable bonding outcomes.

Purpose of the Study:

  • To evaluate and compare the operator variability of two distinct dentin bonding systems: Clearfil Liner Bond II (LB II) and Scotchbond Multi-Purpose (MP).

Main Methods:

  • Tensile bond strengths were measured in resin composite bonded to bovine dentin.
  • Fourteen undergraduate dental students and ten dentists with varying clinical experience participated.
  • Statistical analysis was performed on bond strengths and coefficients of variation.

Main Results:

  • Both student and dentist groups exhibited significant scatter in bond strengths.

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  • Dentists showed no significant difference in mean bond strengths between LB II and MP.
  • Students achieved statistically greater bond strength with LB II compared to MP.
  • The student group had a lower coefficient of variation with LB II, indicating less variability.

    • Conclusions:

    • The performance of dentin bonding systems can be influenced by operator experience and technique.
    • Clearfil Liner Bond II (LB II) demonstrated potentially lower operator variability for students compared to Scotchbond Multi-Purpose (MP).
    • Awareness of technique sensitivity is essential for optimizing bonding performance, especially when using new adhesive systems.