Restorative Material Comparison — ORE Part 1 MCQ

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EasyDental MaterialsRestorative Material ComparisonORE Part 1

A patient requires a direct restoration in a non-stress-bearing anterior site. Compared with conventional glass ionomer cement (GIC), which is the principal advantage of resin composite?

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Reveal the answer and explanation

Correct answer: A — Greater strength and better appearance

Explanation lettering: E = shown as B · B = shown as C · C = shown as D · D = shown as E

A is correct. Compared with conventional GIC, resin composite provides superior aesthetic potential, including a smoother and more tooth-like appearance, and generally greater mechanical strength. These features make it advantageous in a visible non-stress-bearing site. B is a GIC advantage: glass ionomers release fluoride and can act as fluoride reservoirs. C is also characteristic of GIC, which chemically bonds to tooth structure; composite normally requires an adhesive bonding system. D is incorrect because resin composite undergoes polymerisation shrinkage. E is not a useful differentiator: both materials are intended to be biocompatible when correctly used. The wording has been revised so the correct option is not conspicuously longer than the distractors.

Reference: Gladys S, Van Meerbeek B, Braem P, Lambrechts P, Vanherle G. Resin-modified glass-ionomers in dentistry. 1996. The review states that composite has greater strength and aesthetic appearance than glass-ionomer-based materials. https://pubmed.ncbi.nlm.nih.gov/12818551/