Habib AA, Kalaji MN, Al saysd TJ, Al jawfi KA. Root canal configurations of the first and second mandibular premolars in the population of north Syria. Journal of Taibah University Medical Sciences. 2015;10(4):391–5.

Article  Google Scholar 

Rahimi S, Shahi S, Yavari HR, Manafi H, Eskandarzadeh N. Root canal configuration of mandibular first and second premolars in an Iranian population. J Dent Res Dent Clin Dent Prospects. 2007;1(2):59–64.

PubMed  PubMed Central  Google Scholar 

Yu X, Guo B, Li K-Z, Zhang R, Tian Y-Y, Wang H, et al. Cone-beam computed tomography study of root and canal morphology of mandibular premolars in a Western Chinese population. BMC Med Imaging. 2012;12:18.

Article  PubMed  PubMed Central  Google Scholar 

Cleghorn BM, Christie WH, Dong CC. The root and root canal morphology of the human mandibular first premolar: a literature review. J Endod. 2007;33(5):509–16.

Article  PubMed  Google Scholar 

Cleghorn BM, Christie WH, Dong CC. The root and root canal morphology of the human mandibular second premolar: a literature review. J Endod. 2007;33(9):1031–7.

Article  PubMed  Google Scholar 

Mashyakhy M, Jabali A, Alabsi FS, AbuMelha A, Alkahtany M, Bhandi S. Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study. Int J Dent. 2021;2021:5594464.

Article  PubMed  PubMed Central  Google Scholar 

Vertucci FJ. Root canal morphology of mandibular premolars. J Am Dent Assoc. 1978;97(1):47–50.

Article  CAS  PubMed  Google Scholar 

Green D. Double canals in single roots. Oral Surg Oral Med Oral Pathol. 1973;35(5):689–96.

Article  CAS  PubMed  Google Scholar 

Pineda F, Kuttler Y. Mesiodistal and buccolingual roentgenographic investigation of 7,275 root canals. Oral Surg Oral Med Oral Pathol. 1972;33(1):101–10.

Article  CAS  PubMed  Google Scholar 

de Lima CO, de Souza LC, Devito KL, do Prado M, Campos CN. Evaluation of root canal morphology of maxillary premolars: a cone-beam computed tomography study. Aust Endod J. 2019;45(2):196–201.

Zillich R, Dowson J. Root canal morphology of mandibular first and second premolars. Oral Surg Oral Med Oral Pathol. 1973;36(5):738–44.

Article  CAS  PubMed  Google Scholar 

Iqbal A, Karobari MI, Alam MK, Khattak O, Alshammari SM, Adil AH, et al. Evaluation of root canal morphology in permanent maxillary and mandibular anterior teeth in Saudi subpopulation using two classification systems: a CBCT study. BMC Oral Health. 2022;22(1):171.

Article  PubMed  PubMed Central  Google Scholar 

Karobari MI, Noorani TY, Halim MS, Dummer PMH, Ahmed HMA. Should inter-canal communications be included in the classification of root canal systems? Int Endod J. 2019;52(6):917–9.

Article  CAS  PubMed  Google Scholar 

Al Mheiri E, Chaudhry J, Abdo S, El Abed R, Khamis AH, Jamal M. Evaluation of root and canal morphology of maxillary permanent first molars in an Emirati population; a cone-beam computed tomography study. BMC Oral Health. 2020;20(1):274.

Article  PubMed  PubMed Central  Google Scholar 

Vertucci FJ. Root canal morphology and its relationship to endodontic procedures. Endod Top. 2005;10(1):3–29.

Article  Google Scholar 

Weng XL, Yu SB, Zhao SL, Wang HG, Mu T, Tang RY, et al. Root canal morphology of permanent maxillary teeth in the Han nationality in Chinese Guanzhong area: a new modified root canal staining technique. J Endod. 2009;35(5):651–6.

Article  PubMed  Google Scholar 

Baldassari-Cruz LA, Lilly JP, Rivera EM. The influence of dental operating microscope in locating the mesiolingual canal orifice. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2002;93(2):190–4.

Article  PubMed  Google Scholar 

Weine FS, Hayami S, Hata G, Toda T. Canal configuration of the mesiobuccal root of the maxillary first molar of a Japanese sub-population. Int Endod J. 1999;32(2):79–87.

Article  CAS  PubMed  Google Scholar 

Karobari MI, Noorani TY, Halim MS, Ahmed HMA. Root and canal morphology of the anterior permanent dentition in Malaysian population using two classification systems: A CBCT clinical study. Aust Endod J. 2021;47(2):202–16.

Article  PubMed  Google Scholar 

Ahmed HMA, Dummer PMH. Advantages and Applications of a New System for Classifying Roots and Canal Systems in Research and Clinical Practice. Eur Endod J. 2018;3(1):9–17.

PubMed  Google Scholar 

Ahmed HMA, Hashem AAR, Dummer PMH. Application of a new System for Classifying Root and Canal Anatomy in Clinical Practice - Explanation and Elaboration. Eur Endod J. 2021;6(2):132–42.

PubMed  PubMed Central  Google Scholar 

Bashir M, Ahmed I. 3D Evaluation of Root Canal Configuration of Mandibular Premolars Using Cone Beam Computed Tomography (CBCT) ORIGINAL ARTICLE. Pakistan Journal of Medicine and Dentistry. 2021;10:37–43.

Google Scholar 

Suresh S, Kalhoro FA, Rani P, Memon M, Alvi M, Rajput F. Root Canal Configurations and Morphological Variations in Maxillary and Mandibular Second Molars in a Pakistani Population. J Coll Physicians Surg Pak. 2023;33(12):1372–8.

PubMed  Google Scholar 

Hameed MH, Umer F, Khan FR, Pirani S, Yusuf M. Assessment of the diagnostic quality of the digital display monitors at the dental clinics of a university hospital. Informatics in Medicine Unlocked. 2018;11:83–6.

Article  Google Scholar 

Siqueira JF Jr. Aetiology of root canal treatment failure: why well-treated teeth can fail. Int Endod J. 2001;34(1):1–10.

Article  PubMed  Google Scholar 

Pan JYY, Parolia A, Chuah SR, Bhatia S, Mutalik S, Pau A. Root canal morphology of permanent teeth in a Malaysian subpopulation using cone-beam computed tomography. BMC Oral Health. 2019;19(1):14.

Article  PubMed  PubMed Central  Google Scholar 

Noor N, Maxood A, Kaleem K. Cross-sectional analysis of endodontic failure in PIMS. Pak Oral Dent J. 2008;28:99–102.

Google Scholar 

England MC Jr, Hartwell GR, Lance JR. Detection and treatment of multiple canals in mandibular premolars. J Endod. 1991;17(4):174–8.

Article  PubMed  Google Scholar 

Ingle JI, editor. PDQ endodontics. PMPH USA; 2009.

Ahmed HMA, Che Ab Aziz ZA, Azami NH, Farook MS, Khan AA, Mohd Noor NS, et al. Application of a new system for classifying root canal morphology in undergraduate teaching and clinical practice: a national survey in Malaysia. Int Endod J. 2020;53(6):871–9.

Mashyakhy M, Jabali A, AbuMelha A, Almasrahi M, Alshahrani M, Alamir A, Alkahtany M, Bhandi S. Anatomical Evaluation of Mandibular Premolars in Saudi Population: An Cone-beam Computed Tomography Study. Open Dent J. 2022;16:e187421062201170.

Alfawaz H, Alqedairi A, Al-Dahman YH, Al-Jebaly AS, Alnassar FA, Alsubait S, et al. Evaluation of root canal morphology of mandibular premolars in a Saudi population using cone beam computed tomography: A retrospective study. Saudi Dent J. 2019;31(1):137–42.

Article  PubMed  Google Scholar 

Buchanan GD, Gamieldien MY, Fabris-Rotelli I, van Schoor A, Uys A. A study of mandibular premolar root and canal morphology in a Black South African population using cone-beam computed tomography and two classification systems. J Oral Sci. 2022;64(4):300–6.

Article  PubMed  Google Scholar 

Ok E, Altunsoy M, Nur BG, Aglarci OS, Çolak M, Güngör E. A cone-beam computed tomography study of root canal morphology of maxillary and mandibular premolars in a Turkish population. Acta Odontol Scand. 2014;72(8):701–6.

Article  PubMed  Google Scholar 

Hajihassani N, Roohi N, Madadi K, Bakhshi M, Tofangchiha M. Evaluation of Root Canal Morphology of Mandibular First and Second Premolars Using Cone Beam Computed Tomography in a Defined Group of Dental Patients in Iran. Scientifica (Cairo). 2017;2017:1504341.

PubMed  Google Scholar 

Almeida JC, Candemil AP, Bertolini GR, Souza-Gabriel AE, Cruz-Filho AM, Sousa-Neto MD, et al. Cone-beam computed tomographic evaluation of the root canal anatomy of the lower premolars and molars in a Brazilian sub-population. Imaging Sci Dent. 2023;53(1):77–82.

Article  PubMed  PubMed Central  Google Scholar 

Suresh S, Kalhoro FA, Rani P, Memon M. Root Canal Morphology of Premolars in Population of Hyderabad, Pakistan: A Cone Beam Computerised Tomographic Analysis. J Coll Physicians Surg Pak. 2024;34(10):1238–44.

Article  PubMed  Google Scholar 

Kazemipoor M, Poorkheradmand M, Rezaeian M, Safi Y. Evaluation by CBCT of Root and Canal Morphology in Mandibular Premolars in an Iranian Population. Chin J Dent Res. 2015;18(3):191–6.

PubMed  Google Scholar 

Karobari MI, Iqbal A, Syed J, Batul R, Adil AH, Khawaji SA, et al. Evaluation of root and canal morphology of mandibular premolar amongst Saudi subpopulation using the new system of classification: a CBCT study. BMC Oral Health. 2023;23(1):291.

Article