Table 1.

Search strategy as used for PubMed

Part A (non-invasive treatment [Wierichs and Meyer-Lueckel, 2015]) Publication date from January 1, 1947 to May 31, 2014

Remineralization OR demineralization OR remineralisation OR demineralization OR texture OR hard* OR leathery OR soft* OR RCI OR root caries index OR dmf AND

Caries or carious AND

Root or cervic* OR dentin* OR tooth OR teeth

Part A (non-invasive treatment –update [1]) Filters: clinical trial Publication date from January 1, 2014 to February 28, 2019

Remineralization OR demineralization OR remineralisation OR demineralization OR texture OR hard* OR leathery OR soft* OR RCI OR root caries index OR dmf AND

Caries or carious AND

Root or cervic* OR dentin* OR tooth OR teeth

Plus search with term “root caries” filters: clinical trial (2)

Part B (micro-invasive treatment) filters: clinical trial No time restriction; date February 15, 2019

Lesion exposure OR laser OR infiltration OR sealant OR fluoride AND

Caries OR carious AND

Root OR cervic*

Part C1 (invasive treatment – ART vs. conventional therapy [Göstemeyer et al., 2019]) filters: clinical trial No time restriction; date; November 7, 2018

ART OR atraumatic OR restor* AND

Caries AND

Root

Part C2 (invasive treatment – conventional therapy various materials) filters: clinical trial No time restriction; date: February 15, 2019

Fill* OR restor* AND

Caries OR carious AND

Root or cervic*

RCI, Root Caries Index; ART, atraumatic restorative treatment. The asterisk indicates word stem search.