Exploring Lid technique in retrofillings

In an in vitro study published in the Journal of Endodontics, researchers used micro-computed tomography and scanning electron microscopy to analyze the efficacy of tricalcium silicate-based cements with sealer and putty consistencies in apical surgery retrograde fillings. The Lid technique was used to inject flowable sealers into the retrocavities of 30 bovine incisors followed by the placement of the putty layer.

After micro-CT and scanning electron microscope analyses, the tricalcium silicate-based cements demonstrated favorable volumetric stability and interfacial adaptation. For instance, both layers demonstrated minimal 30-day volumetric changes, close adaptation to dentinal walls, sealer penetration into the dentinal tubules, occasional microgaps that didn’t impact the interfacial continuity, and overall structural resilience through simulated physiologic conditions.

The positive findings pointed to the potential use of tricalcium silicate-based cements in retrofillings during apical surgery.

Read more: Journal of Endodontics

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