Abstract
Aim: In this in vitro study the variation of root anatomy and canal system of the first human maxillary premolar was evaluated. Materials and Methods: Two hundred and twenty one maxillary first premolars (#221 teeth) were examined. All of the teeth were identified using the accepted criteria of Woelfel as maxillary first premolars. Selected teeth are analyzed using operating microscope (OP) and computed dental radiography (CDR). Results: There was a higher incidence of two-roots form 70.14% (n = 155), 21.72% (n = 48) had one root, and 8.14% (n = 18) had three roots. In the two-root category, 16.29% (n = 36) had bifurcation on apical third, 21.72% (n = 48) had bifurcation on middle third, and 32.13% (n = 71) had bifurcation on cervical third. The examination of root canal systems of the teeth was based on Vertucci’s classification type of canal: 64.58% (#31) of the cases had type IV (2-2-2), 25.00% (#12) type II (2-2-1), 8.33% (#4) type I (1-1-1), and 2.09% (#1) type III (1-2-1). Conclusion: This study showed a high incidence of two-rooted maxillary first premolars collected from different regions in Kosovo. Internal root canal system morphology reflects the external root anatomy. Furthermore, there is correlation between the shape of the outer surface of the root and the shape of the root canal. The cases with one root of the maxillary first premolar with a deep depression on the mesial side contain a double root canal system more often than a single canal.
Highlights
Root Canal Therapy (RCT) depends upon complete and accurate biomechanical preparation followed by a 3D
All of the teeth were absolutely identified by two independent observers using the accepted criteria of Woelfel [20] as maxillary first premolars, Figure 1
The teeth with fused root were found to have a deep depression on the mesial side (74.8%), and the distal side have 48.1% deep concavity
Summary
Root Canal Therapy (RCT) depends upon complete and accurate biomechanical preparation followed by a 3DHow to cite this paper: Koçani, F., Kamberi, B., Dragusha, E., Kelmendi, T. and Sejfija, Z. (2014) Correlation between Anatomy and Root Canal Topography of First Maxillary Premolar on Kosovar Population. (2014) Correlation between Anatomy and Root Canal Topography of First Maxillary Premolar on Kosovar Population. The failure of these treatments, is very often as a result of morphological variation, except the main root canal there can present the accessory and supplementary (lateral ) canals and this is trait for every tooth [2] [3]. The internal anatomy of the maxillary first premolars is complex due to their variation in number of roots and canal configuration [4]. Recent research has reported different incidence of first maxillary premolars. One root varied from 15.5% to 60% [5]-[9], while incidence with two roots varied from 50.6% to 72%; and with three roots 0% to 6% [6]-[8] [10] [11]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
