Buccolingual inclinations of posterior teeth in subjects with different facial patterns

Janson, Guilherme; Bombonatti, Roberto; Cruz, Karina Santana; Hassunuma, Cristina Yuka; Santo, Marinho Del

doi:10.1016/j.ajodo.2003.03.010

Cited by 53 publications

(54 citation statements)

References 24 publications

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“…Compared with molars of patients with the vertical growth pattern, molars of those with the horizontal growth pattern had a significantly greater buccal inclination in the posterior region, similar to the results of Janson et al (2004). Functional hyperactivity of the masticatory system imposes increased stress on the bony structures of the craniofacial complex with possible influences on its structure (Kiliaridis et al, 1995).…”

Section: Discussionsupporting

confidence: 66%

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Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Han

Wang

et al. 2013

J. Zhejiang Univ. Sci. B

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Abstract:Objective: To investigate the relationship between growth patterns and mandibular posterior tooth-alveolar bone complex morphology in a Chinese population with normal occlusion. Methods: Forty-five patients with normal occlusion (23 males, 22 females) were included in this study. Among these patients, 20 displayed the vertical growth pattern, and 20 had the horizontal growth pattern, while the remaining patients displayed the average growth pattern. All of the patients underwent dental cone beam computed tomography (CBCT), which included the region of the mandibular posterior teeth and the alveolar. A linear regression analysis and a correlation analysis between the facial height index (FHI) and the alveolar bone morphology were performed. Results: The inclination of the molars, the thickness of the cortical bone, and the height of the mandibular bone differed significantly between patients with the horizontal growth pattern and those with the vertical growth pattern (P<0.05). Significant positive correlations were found between: the FHI and the inclination of the molars; the FHI and the thickness of the cortical bone; and the FHI and the height of the mandibular bone. Conclusions: The mandibular posterior tooth-alveolar bone complex morphology may be affected by growth patterns.

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Section: Discussionsupporting

confidence: 66%

“…The 3D position of the teeth and jaw bone is dependent on the combination of these three forces. Initially, the mandibular molars erupt lingually, and then move buccally due to tongue pressure and masseter function (Janson et al, 2004). Finally, the molars reach a balanced position (Masumoto et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Han

Wang

et al. 2013

J. Zhejiang Univ. Sci. B

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“…For example, Janson et al 23 reported that there was no statistical variation between low and high angle subjects in mandibular posterior tooth inclination but that maxillary molars had greater buccal inclination in high angle a No statistically significant difference between male and female in all groups. For F/M combined upper angle, statistically significant difference between groups 1 and 3 and groups 2 and 3, but not between groups 1 and 2.…”

Section: Discussionmentioning

confidence: 99%

Buccolingual inclination of molars in untreated children and adults: A cone beam computed tomography study

Yang¹,

Chung

2018

The Angle Orthodontist

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Objectives: To evaluate and compare the buccolingual inclinations of maxillary and mandibular first molars in untreated children and adults. Materials and Methods: One hundred and thirty-eight subjects were selected and divided into three groups, as follows: (1) age 6-9 years, N ¼ 46; (2) age 10-19 years, N ¼ 56; and (3) age 25-35 years, N ¼ 36. For each subject, existing cone beam computed tomography images were used, and the long axis for each maxillary and mandibular first molar was determined. The converge angles formed by the long axis of left and right maxillary first molars and by the long axis of left and right mandibular first molars were measured. Results: The maxillary molars exhibited buccal inclination, with the converge angle of 21.18 6 9.58 in group 1, 17.38 6 8.68 in group 2, and 9.38 6 7.38 in group 3. Statistically significant differences were found between groups 1 and 3 and groups 2 and 3, but not between groups 1 and 2. The mandibular molars exhibited lingual inclination, with the converge angle of 34.98 6 118 for group 1, 26.68 6 9.28 for group 2, and 26.18 6 7.78 for group 3. Statistically significant differences were found between groups 1 and 2 and groups 1 and 3, but not between groups 2 and 3. Conclusions: Maxillary first molars exhibited buccal inclination. Adults displayed less inclination than did children. Mandibular first molars exhibited lingual inclination. Adults displayed less inclination than did children. Some degree of curve of Wilson should be maintained at the end of orthodontic treatment to fulfill physiologic needs and stability. (Angle Orthod. 2019;89:87-92.)

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“…17 Nuestros resultados mostraron que la inclinación promedio del primer molar superior derecho fue de 80,00 ± 7,11º, 18 A similarity may be established, especially in terms of mandibular molars, and some difference in the maxillary molars, which can be explained by variability in growth patterns. 19 Finally, the correlation analyzed in this study showed that no significant relationships were found in evaluating overall discrepancies, but in grouping them according to whether the discrepancy (it is, the difference between transverse mandibular and maxillary length) is greater than 5 mm (positive) or shorter than 5 mm (negative), the study did find correlations with the inclination of both upper and lower molars, suggesting different behaviors in both groups. In the negative correlations, where the discrepancy is closer to 5 mm, the inclination of upper molars with respect to the OP tends to decrease, but when the discrepancy is positive, the tendency is that the more it increases and deviates from 5 mm, the bigger the angle tends to be.…”

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confidence: 79%

“…18 Se puede establecer una similitud, sobre todo en los molares mandibulares, y algo de diferencia en los maxilares, lo que se puede explicar por la variabilidad que existe en los patrones de crecimiento. 19 Finalmente, la correlación objeto de este estudio mostró que, al evaluar las discrepancias en conjunto, no se encontraron relaciones significativas, pero al agruparlas según si la discrepancia (o sea la diferencia entre la longitud transversal maxilar y mandibular) es mayor a 5 mm (positiva) o menor a 5 mm (negativa), sí se hallaron correlaciones con la inclinación de los molares tanto superiores como inferiores, lo que indica que existen comportamientos diferentes en los dos grupos. En las negativas, en la medida en que la discrepancia se acerca a 5 mm, la inclinación de los molares superiores con respecto al PO tiende a disminuir, pero cuando la discrepancia es positiva, la tendencia es que mientras más aumente y se aleje de los 5 mm, la angulación tiende a aumentar de igual forma.…”

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Correlation Between Transverse Maxillary Discrepancy And The Inclination Of First Permanent Molars. A Pilot Study

Vasquez

Escobar

Loyo

et al. 2017

Rev. Fac. Odontol. Univ. Antioq.

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RESUMEN. Introducción: el crecimiento y el desarrollo craneofacial permiten que algunas alteraciones dentales sean compensadas con respuestas maxilares. El propósito de este estudio consistió en relacionar la discrepancia maxilo-mandibular en sentido transversal con las inclinaciones bucolinguales de los primeros molares permanentes maxilares y mandibulares en una población con edades entre 10 y 16 años, por medio de tomografías computarizadas de haz de cono (CBCT

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Buccolingual inclinations of posterior teeth in subjects with different facial patterns

Cited by 53 publications

References 24 publications

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Buccolingual inclination of molars in untreated children and adults: A cone beam computed tomography study

Correlation Between Transverse Maxillary Discrepancy And The Inclination Of First Permanent Molars. A Pilot Study

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