Palatogingival groove and root canal instrumentation.
Tiago Novaes PinheiroLuciano Tavares Angelo CintraMariane Maffei AzumaFrancine BenettiCristiane Cantiga da SilvaAlberto ConsolaroPublished in: International endodontic journal (2020)
Palatogingival grooves were characteristically deep and originated from the distal margin of the cingulum. Although it has been associated with a thinner root wall, root canal preparation did not influence the thickness of the specific wall in the maxillary incisors with PGG.