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Validity of bond strength tests: A critical review-Part II

Kantheti Sirisha1, Tankonda Rambabu2, Yalavarthi Ravishankar3

  • 1Departments of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India.

Journal of Conservative Dentistry : JCD
|October 10, 2014
PubMed
Abstract

Insights

Micro-bond strength tests are more reliable for evaluating resin-tooth interfaces than macro-bond tests. However, a lack of standardized reporting formats can lead to misinterpretation of adhesive bonding abilities.

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering

Background:

  • Macro-bond strength tests often result in cohesive failures, leading to overestimated bond strengths.
  • Micro-bond strength tests were developed to address the limitations of macro-bond tests and are now widely adopted.
  • These tests are crucial for assessing the integrity of the resin-tooth interface in dental restorations.

Purpose of the Study:

  • To critically review the reliability of micro-bond strength tests.
  • To evaluate the effectiveness of micro-bond tests in assessing the resin-tooth interface.
  • To identify factors influencing the outcomes of micro-bond strength tests.

Main Methods:

  • A comprehensive literature search was conducted using PubMed, Google Scholar, and relevant dental journals.
  • Articles published between January 1994 and July 2013 were systematically collected.
  • Factors influencing test outcomes were categorized and critically analyzed.

Main Results:

  • Variables impacting micro-bond test outcomes include substrate properties, specimen characteristics, preparation methods, and testing procedures.
  • The analysis critically examined how these variables influence the reliability of bond strength measurements.
  • Micro-bond tests demonstrate higher reliability compared to macro-bond tests.

Conclusions:

  • Micro-bond tests offer a more reliable assessment of bond strength than macro-bond tests.
  • A significant limitation is the absence of a standardized reporting format for these tests.
  • This lack of standardization can result in data misinterpretation and inaccurate conclusions regarding adhesive performance.
Keywords:
Bond strength testmicro-push outmicro-shearmicro-tensile

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