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Correlation between Anatomy and root canal Topography of First Maxillary Premolar on Kosovar Population

Open Journal of Stomatology 2014年第7期4卷 332-339页

作者： Ferit Kocani Blerim Kamberi Edmond Dragusha Tringa Kelmendi Zana Sejfija Conservative Dentistry and Endodontics Faculty of Medicine/StomatologyUniversity of Prishtina“Hasan Prishtina”PrishtinaKosovo

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.

关键词： Maxilary First Premolar root Anatomy root canal system

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Clinical Treatment and Anatomy Study of Maxillary First Molars with Five root canals

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Chinese Medical Sciences Journal 2011年第2期26卷 129-131页

作者： Kuo Wan Shun-yun Luo Ji-zhi Zhao Hai-yun Wang Lin Ma Wen-dong Yang Department of Stomatology Peking Union Medical College Hospital Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100730 China

THE purpose of root canal treatment is to thoroughly clean the root canal system and fill it in all its dimensions.I To achieve this goal, the entire root canal system must be adequately debrided and completely filled. In clinical practice, variations in the canal morphology pose a constant challenge to endodontists in deciding on accurate diagnosis and appropriate management. Knowledge of these variations is crucial for a successful endodontic treatment, especially in absence of an operating microscope or cone-beam computered tomography （CBCT）.

关键词： endodontics maxillary first molar root canal system

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