School of Dental Medicine, University of Zagreb, Croatian Dental Society - Croatian Medical Association
Abstract
Prvi gornji trokorijeni pretkutnjaci ne pojavljuju se često, ali njihovu pojavnost moramo imati na umu pri endodontskom tretmanu gornjih pretkutnjaka. Ulazi u bukalne korijenske kanale obično nisu dobro vidljivi, pa unatoč dobrom poznavanju anatomije, kliničkom iskustvu i radiografskoj snimci jedan od bukalnih kanala ostaje neobrađen. Incidencija prvih gornjih pretkutnjaka s tri odvojena korijena, tri kanala i tri apeksna otvora je između 4-6%. U radu je prikazano 5 endodontskih liječenja prvih maksilarnih pretkutnjaka s 3 korijenska kanala. Prvi slučaj je liječenje zbog protetske indikacije gdje su odmah uočena i tretirana sva 3 kanala, što je radiografski dokumentirano. Preostala 4 slučaja su retretmani jer prijašnja liječenja nisu bila uspješna zbog neprepoznavanja i netretiranja trećega kanala. Učinjeni retretmani radiografski su kontrolirani.Three-rooted maxillary first premolars do not occur usually, but their possibility always has to be considered. The buccal orifices of the root canals are not clearly visible. In spite of a good knowledge of tooth anatomy, clinical experience, and X-rays, the third canal is often overlooked. The incidence of maxillary first premolars with three roots, three canals and three foramina is about 4-6%. In this article 5 clinical endodontic cases of first maxillary premolars with three canals are presented. The first case presents endodontic treatment of the first right maxillary premolar for a prosthetic reason. All three canals were recognized and treated as documented by radiographs. The remaining cases were retreatment of the first maxillary premolars where third canals had remained unrecognized during previous endodontic procedures, resulting in failure of treatment. Retreatments were performed and results documented by radiographs
