Predictability of radiographic diagnosis of variations in root canal anatomy in mandibular incisor and premolar teeth

Abstract

Four hundred and fifty-five extracted mandibular incisor and 340 extracted mandibular premolar teeth were radiographed to assess the incidence of twin canals as visualized on radiographs taken in the mesio-distal direction. The ability to detect the presence of these twin canals by viewing radiographs taken in the standard bucco-lingual direction was then assessed. Using the guideline that 'disappearance or narrowing infers division' when viewing these radiographs resulted in a failure to diagnose one-third of the twin canals.

Radiographic Investigation of Location and Angulation of Curvatures in Human Maxillary Incisors

“…Besides the instrumental advantages, the precise knowledge of the root canal morphology is essential for a successful endodontic treatment outcome. Furthermore the sufficient definitive restoration is necessary for the long-term stability (5,6). Previous studies on root canal anatomy, which predominantly have been performed on different tooth types of whites and Asians, have indicated variations in configuration.…”

Endodontic treatment of three mandibular incisors with two canals and two separate foramina: A case report

“…Some of these contributing factors resulting in such dispersion include sex(9), ethnic background [14,15] , age [16] , methodology of study (e.g. CBCT [4,[17][18][19] , clearing and injection [5,8,10,20] , MicroCT [21,22] , peripheral quantitative computed tomography (pQCT) [23] , conventional radiography [24][25][26] and clinical inspection.…”

“…The results of a study using standard straight radiographs from the buccal aspect of mandibular incisors and premolars, considering the narrowing or canal disappearance phenomena, showed missing of second canal in one third of the specimens [26] .…”

“…Careful visualization of pre-, intra-, and post-treatment radiographs as well as taking horizontally angled images are the most common, accessible and popular method in detecting any anatomical variation [24,26] . The results of a study using standard straight radiographs from the buccal aspect of mandibular incisors and premolars, considering the narrowing or canal disappearance phenomena, showed missing of second canal in one third of the specimens [26] .…”

A análise da radiografia prévia pelo operador melhora o desempenho do localiza-dor apical eletrônico em dentes com fratura radicular: estudo in vitro

“…Apesar do exposto, a radiografia prévia à realização do tratamento endodôntico é indispensável, sendo um consenso entre os autores 3,12,13 . Essa tomada radiográfica permite ao operador verificar detalhes sobre a anatomia radicular e o comprimento aparente do dente, informações que possibilitam antever se o tratamento ocorrerá normalmente ou com alguma intercorrência.…”