Anatomy Research International / 2013 / Article / Tab 6

Review Article

Root Anatomy and Root Canal Configuration of Human Permanent Mandibular Premolars: A Systematic Review

Table 6

Summary of various developmental anomalies that have been reported in mandibular premolars.

Mandibular premolarDevelopmental anomaliesRoot/root canal anatomyDiagnostic modeReference

1st premolarDens invaginatus2 rootsR/GHartup [81], 1997
Dens invaginatusN/AR/GBramante et al. [82], 1993
Dens invaginatusN/AR/GTavano et al. [83], 1994
Gemination3 canalsR/GAryanpour et al. [84], 2002
Dens invaginatus1 rootR/GEr et al. [85], 2007
Dens invaginatus (bilateral)N/AR/GCanger et al. [86], 2009

2nd premolarDens evaginatusN/AR/GKoh et al. [87], 2001
Fusion with mandibular first molar5 canalsR/GTsesis et al. [88], 2003
Fusion with supernumerary toothN/AClinical Sathish Muthukumar et al. [89],
2012
Taurodontism3 canalCBCTMokhtari et al. [77], 2013
Taurodontism5 canalsR/GDemiryürek et al. [90], 2013

CBCT: cone beam computed tomography, R/G: radiograph, and N/A: not available.

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