The Relationship between Dental Follicle Width and Maxillary Impacted Canines' Descriptive and Resorptive Features Using Cone-Beam Computed Tomography.

İlhan Metin Dağsuyu,Mehmet Uğurlu,İbrahim Şevki Bayrakdar,Fatih Kahraman,Rıdvan Okşayan,Mehmet Aydın

doi:10.1155/2017/2938691

İlhan Metin Dağsuyu, Mehmet Uğurlu + Show 4 more

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https://doi.org/10.1155/2017/2938691

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Abstract

Objectives To assess the relationship between dental follicle width and maxillary impacted canines' descriptive and resorptive features with three-dimensional (3D) cone-beam computed tomography (CBCT). Methods The study comprised 102 patients with cone-beam computed tomography 3D images and a total of 140 impacted canines. The association between maxillary impacted canine dental follicle width and the variables of gender, impaction side (right and left), localization of impacted canine (buccal, central, and palatal), and resorption of the adjacent laterals was compared. Measurements were analyzed with Student's t-test, Kruskal-Wallis test, and Mann–Whitney U statistical test. Results According to gender, no statistically significant differences were found in the follicle size of the maxillary impacted canine between males and females (p > 0.05). Widths of the follicles were determined for the right and left impaction sides, and no statistically significant relation was found (p > 0.05). There were statistically significant differences between root resorption degrees of lateral incisors and maxillary impacted canine follicle width (p < 0.05). Statistically significant higher follicle width values were present in degree 2 (mild) resorption than in degree 1 (no) and degree 3 (moderate) resorption samples (p < 0.05). Conclusions No significant correlation was found between follicle width and the variables of gender, impaction side, and localization of maxillary impacted canines. Our study could not confirm that increased dental follicle width of the maxillary impacted canines exhibited more resorption risk for the adjacent lateral incisors.

Highlights

Maxillary canines have a great importance in facial aesthetics and dental occlusion
Sixtyeight maxillary impacted canines were located on the left side, and 72 maxillary impacted canines were located on the right side
Within the limitations of this retrospective cone-beam computed tomography (CBCT) study, the results provide five main conclusions: (1) There was no significant correlation between gender and follicle width in maxillary impacted canines; this suggests that follicle width is independent of the subject’s gender

Summary

Introduction

Maxillary canines have a great importance in facial aesthetics and dental occlusion. Prevalence rate of maxillary impacted canines is reported to be from 1% to 5% and has a high rate of occurrence in females [1, 2]. The maxillary canines have the longest eruption path between their formation region and the final occlusal position in the dental arch [4]. This may explain why maxillary canines are known as the second most frequently impacted teeth after the third molars. With the development of three-dimensional (3D) imaging, conventional radiography aided maxillary impacted canine studies are starting to be done again with the use of computed tomography (CT). Cone-beam computed tomography (CBCT) has become an alternative to conventional CT in diagnosis and treatment planning of impacted teeth [5, 6]. Bjerklin and Ericson found that, after 3D assessment of maxillary impacted canines, orthodontic treatment plans were changed in nearly half of the cases [8]

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