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ORIGINAL ARTICLE
Year : 2017  |  Volume : 7  |  Issue : 2  |  Page : 92-96

Unevenness of apical constriction of maxillary incisors and canines: An in vitro study


Department of Conservative Dentistry and Endodontics, Ahmedabad Dental College and Hospital, Ahmedabad, Gujarat, India

Correspondence Address:
Siddarth Suthar
Ahmedabad Dental College and Hospital, Bhadaj.Ranchhodpura Road, Santej, P. O. Rancharda, Kalol, Ahmedabad, Gujarat
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-5984.205125

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Aim: To examine and measure a possible skew in the longitudinal position of the apical constriction in human maxillary central incisors, lateral incisors, and canines around the circumference of the canal. Materials and Methods: Twenty-five human maxillary central incisors, lateral incisors, and canines were split and imaged with ×25 magnification. The most apical and coronal limits of the apical constriction were identified and measured. Results: Analysis of the data indicates that a majority (>64%) of maxillary central incisors, (>69.6%) lateral incisors, and (>70%) of canines exhibit an unevenness or “skew” of the apical constriction of >100 μ m in the incisoapical dimension. A statistically significant (P < 0.05) variation in the longitudinal position of the apical constriction around its circumference was confirmed in maxillary central incisors. Conclusion: The termination of working length is more likely to end in an apical constriction zone rather than at an apical constriction point or plane.


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