Review Article
Root Anatomy and Root Canal Configuration of Human Permanent Mandibular Premolars: A Systematic Review
Table 3
Summary of exvivo studies reporting a deep mesial radicular invagination in mandibular premolars.
| Population | Incidence | Tooth type | References |
| India | 14% | 1st premolar | Velmurugan and Sandhya [18], 2009 | 14% | 1st premolar | Sandhya et al. [16], 2010 | 15.21% | 1st premolar | Jain and Bahuguna [20], 2011 |
| China | 27.8% | 1st premolar | Liu et al. [24], 2013 |
| Jordan | 17.6% | 1st premolar |
Awawdeh and Al-Qudah [33], 2008 | 13.5% | 2nd premolar |
| Austria | 15% | 1st premolar | Robinson et al. [42], 2002 |
|
|