A maxillary lateral incisor with four root canals

Abstract

• Clinicians should be aware of the variable root canal anatomy in maxillary lateral incisor teeth. • Careful examination of radiographs and the internal anatomy of teeth are essential prerequisites for successful root canal treatment. • Four root canals in maxillary lateral incisors is a possibility.

Five root canals in peg lateral incisor with dens invaginatus: A case report with new nomenclature for the five canals

“…The literature shows that MLI with a maximum of four canals has been reported,[4] but as far as the author's knowledge, this is the first case with FRC, especially in a peg-shaped lateral incisor complicated by the presence of DI. According to the literature, DI in a MLI is considered as unusual.…”

“…Considering the occurrence of additional canals, the literature shows that, MLI with a maximum of four canals[4] and with dens formation, three root canals[5] have been reported. Zillich et al .…”

Endodontic treatment of maxillary lateral incisors with anatomical variations

“…Independent studies consistently report that maxillary lateral incisors have single root canals 1,8. However, there are reports of maxillary lateral incisors with two or three canals 2,3,9,10. These are thought to be the result of abnormal development of the tooth and root.…”

Use of cone-beam computed tomography during management of a double-rooted maxillary lateral incisor: a 6-month follow-up case report

“…Vertucci has reported that maxillary incisors present a single root and single canal. However, numerous case reports have shown two, [7,8] three, [5] and even four [9,10] canals. Clinically, maxillary lateral incisors with anatomic variations often indicate a fusion, [11] gemination, [12] dens invaginatus, [10] or a palatogingival groove.…”

“…[15,16] Therefore, cone beam computed tomography was used as a diagnostic tool by many authors for evaluating extra canals or roots. [9] In this case, CBCT scanning was used for three-dimensional analysis of the root canal system with detection of the location of roots. Buccal and palatinal canals were not clearly detectable on conventional radiographs because of superimposition.…”