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Journal of Biomedical Optics • Open Access

Dynamic measurement of local displacements within curing resin-based dental composite using optical coherence elastography
Author(s): Peter H. Tomlins; Mohammed Wahidur Rahman; Robert S. Donnan

Paper Abstract

This study aimed to determine the feasibility of using optical coherence elastography to measure internal displacements during the curing phase of a light-activated, resin-based composite material. Displacement vectors were spatially mapped over time within a commercial dental composite. Measurements revealed that the orientation of cure-induced displacement vectors varied spatially in a complex manner; however, each vector showed a systematic evolution with time. Precision of individual displacements was estimated to be ∼1 to 2  μm, enabling submicrometer time-varying displacements to be detected.

Paper Details

Date Published: 1 April 2016
PDF: 5 pages
J. Biomed. Opt. 21(4) 046001 doi: 10.1117/1.JBO.21.4.046001
Published in: Journal of Biomedical Optics Volume 21, Issue 4
Show Author Affiliations
Peter H. Tomlins, Queen Mary, Univ. of London (United Kingdom)
Mohammed Wahidur Rahman, Queen Mary, Univ. of London (United Kingdom)
Robert S. Donnan, Queen Mary, Univ. of London (United Kingdom)


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