Mandibular anterior bony support and incisor crowding: Is there a relationship?

Uysal, Tancan; Yağcı, Ahmet; Özer, Törün; Veli, İlknur; Öztürk, Ahmet Hakan

doi:10.1016/j.ajodo.2012.05.017

Cited by 19 publications

(22 citation statements)

References 31 publications

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“…The latter finding is consistent with the report of a greater mandibular symphysis height in males compared to females in a Turkish anthropometric study of young adults. 27 Among the demographic variables, gender and age were partly associated with the presence of two root canals. Although the prevalence of two root canals in incisors was similar in males and females, double root canals in canines were seen significantly more often in females.…”

Section: Discussionmentioning

confidence: 99%

Root and canal symmetry in the mandibular anterior teeth of patients attending a dental clinic: CBCT study

et al. 2015

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Root and canal symmetry in the mandibular anterior teeth of patients attending a dental clinic: CBCT study Abstract: The aims of this study were to evaluate the number of roots/root canals in the mandibular anterior teeth of a Turkish population, to assess the relationship between gender or age and the frequency of two canals in a single root, and to determine the symmetry in root/root canal numbers between contralateral sides among patients. Cone-beam computed tomography images (n = 1128; 6253 teeth) taken at the Department of Dentomaxillofacial Radiology of the Faculty of Dentistry of Gazi University were examined by three observers and a supervisor, all of whom were blinded to patient gender and age. Axial, sagittal, and cross-sectional slices with a thickness of 1 mm were used. Numbers of roots and canals for each type of tooth were recorded. Most teeth had a single root and single root canal. Roots with two canals were more frequent in the incisors (14.9%, 17.2%, and 6.1% of the central incisors, lateral incisors, and canines, respectively). Teeth with two roots were more frequent in the canines (3.1% vs. 0% or 0.1%). Females more often had canines with double root canals (p < 0.001). When at least one tooth had two root canals, bilateral symmetry between contralateral teeth was found in 45.0%, 29.0%, and 28.0% of cases for central incisors, lateral incisors, and canines, respectively. Patients older than 56 years had fewer teeth with double root canals (p ≤ 0.001). A small proportion of the mandibular anterior teeth had two roots or root canals. Double root canals were mostly unilateral. Age and gender were associated with the number of root canals.

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Section: Discussionmentioning

confidence: 99%

Root and canal symmetry in the mandibular anterior teeth of patients attending a dental clinic: CBCT study

et al. 2015

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“…19 Nauert and Berg 1 stated that accurate assessment of the bone support of the lower incisors is only possible through the use of computed tomography. Our study followed the voxel size protocol used by Evangelista et al, 17 affirming that the accuracy of the data also depends on the high-resolution image, which is related to small voxel size in the CBCT.…”

Section: Discussionmentioning

confidence: 99%

Bone tissue amount related to upper incisors inclination

Nahás-Scocate

Brandão

Patel

et al. 2013

The Angle Orthodontist

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Objective: To evaluate the amount of buccal and lingual supporting bone tissue of 60 upper central incisors and the relationship with their inclination. Materials and Methods: Thirty healthy adult patients with no previous orthodontic treatment were evaluated using cone-beam computed tomography. Cross-sectional views were analyzed to check the amount of the bone tissue on the cervical (cervical buccal thickness/CBT; lingual/CLT), middle (middle buccal thickness/MBT; lingual/MLT), and apical regions (apical buccal thickness/ABT; lingual/ALT). The Pearson correlation, linear regression, and analysis of variance tests were used (P , .05).Results: The values of ABT of both teeth (11, right upper central incisor; 21, left upper central incisor) were significantly increased with the increase in the angle between the axis of the upper central incisor and the palatal plane (1/PP) (tooth 11 P 5 .034; tooth 21 P 5 .009), yet without a strong linear correlation. At the buccal and lingual surfaces, the mean apical supporting bone tissue was significantly greater than the other areas, and the middle region significantly greater than the cervical (P , .001). Conclusions: For both surfaces (buccal and lingual), the amount of bone tissue in the apical region was significantly higher than the middle and cervical regions, and the middle region was significantly higher than the cervical region. In relation to the upper central incisor's inclination, the higher the 1/PP the higher was ABT. However, the coefficient values for both teeth were low.

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“…Ancak daha önceki çalışmalar cinsiyet farkının MS morfolojisine yansımış olabileceğini göstermekte-dir. 6,19 Çalışmamızın sonuçları bu açıdan dikkatlice ele alınması gerekse de tedaviyle oluşabilecek değişiklik-lere dikkat çekilmesi açısından önemlidir.…”

Section: Tedavi Başı (Tb)unclassified

“…Üç-boyutlu tomografiler kullanılarak MS boyutlarını inceleyen son çalışmalar, yalnızca tedavi başı kayıtları ile ilgili kesitsel bilgi vermekte ve tedavi ile oluşan değişikliklerden ziyade morfolojik farklılıkların etkilerini değerlendirmektedir. 7,8,19,21 Ancak teknolojinin yeni olması ve radyasyon dozu ile ilgili çelişkiler, 24,25 bu görüntülerin arşivlenme hızını yavaşlatmaktadır. Bu da, özellikle ortodontik tedavilerin uzun dönem etkilerine iliş-kin çalışmalarda iki boyutlu lateral sefalometrik filmlerin kullanımını halen avantajlı kılmaya devam etmektedir.…”

Section: Tedavi Başı (Tb)unclassified