Class V situation with an unmatched chameleon effect using #GCEssentiaU, which is essentially (haha) a 50:50 ratio of A2:A3.
The threshold for conservative restorative treatment is when the lesion is equal or >1.5mm, as the lost pericervical enamel and dentin suffer significant increases in strain when this depth of cervical abrasion is present.
Du JK, Wu JH, Chen PH, Ho PS, Chen KK. Influence of cavity depth and restoration of non-carious cervical root lesions on strain distribution from various loading sites. BMC Oral Health. 2020 Apr 7;20(1):98. doi: 10.1186/s12903-020-01083-w. PMID: 32264864; PMCID: PMC7140390.
