A new concept of mandibular dental arch forms with normal occlusion

Triviño, Tarcila; Siqueira, Danilo Furquim; Scanavini, Marco Antônio

doi:10.1016/j.ajodo.2007.07.014

Cited by 71 publications

(91 citation statements)

References 22 publications

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“…Recent studies have evaluated the arch dimensions on the basis of facial axis (FA) points. 30,31 The dental arch has been previously evaluated in a three-dimensional (3D) study. 32 Analysis using this method seems to be clinically relevant, especially for the application of preformed superelastic archwires, because digitizing the FA points in a 2D manner is not reliable.…”

Section: Introductionmentioning

confidence: 99%

“…[24][25][26][27][28] Most of these studies have analyzed the dental arch by employing two-dimensional (2D) methods. [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] The reference points used for the measurements in these studies were incisal edges and cusp tips 17,19,[24][25][26][27][28] or indirect clinical bracket points derived from the contact points. 18,20,23 However, these landmarks do not represent the clinical archwire forms.…”

Section: Introductionmentioning

confidence: 99%

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Three-dimensional evaluation of the relationship between dental and basal arch forms in normal occlusion

et al. 2011

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Objective:The purposes of this study were to evaluate the relationship between the dental and basal arch forms; to analyze their differences in the tapered, ovoid, and square arch forms in normal occlusion by using three-dimensional (3D) virtual models; and to test the hypothesis that the overjet and maxillomandibular basal arch width difference have a significantly positive correlation. Methods: Seventy-seven normal occlusion plaster casts were examined by 3D scanning. Facial axis (FA) and WALA points were digitized using the Rapidform 2006 software. The dimensions of the dental and basal arches and the overjet were measured. The samples were classified into 3 groups according to arch forms: tapered (n = 20), ovoid (n = 20), and square (n = 37). Analysis of variance (ANOVA) was used to compare the dental and basal arch dimensions. The Pearson correlation coefficients between the intercanine as well as the intermolar widths at the FA and WALA points were calculated. Results: With regard to the basal arch dimensions, the tapered arch form showed a larger mandibular intermolar depth than the ovoid. Strong correlations were noted between the basal and dental intermolar widths in both the upper and lower arches (r = 0.83 and 0.85, respectively). Moderate correlation was found between the upper and lower intercanine widths (r = 0.65 and 0.48, respectively). Conclusions: The 3 dental arch form groups differed only in some dimensions of the skeletal arch. Moderate correlations were found between the basal and dental intercanine widths. These findings suggest that the basal arch may not be a principle factor in determining the dental arch form. (Korean J Orthod 2011;41(4):288-296)

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Three-dimensional evaluation of the relationship between dental and basal arch forms in normal occlusion

et al. 2011

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“…Trivino T (2008) et al 22 in their study concluded that the mandibular dental arch is represented by 23 forms; thus, a normal dental arch cannot be represented by only one simple arch form. Now to determine the arch forms of mandibular arch of an individual case, percentage relative deviations of each ratio from its overall mean value (Table 3) are estimated and depending upon relative positivity and negativity of each ratio, the arch form of that particular case is decided by a nonhierarchical stepwise method as follows: 1.…”

Section: Discussionmentioning

confidence: 99%

Dental Arch Form Analysis in Gujarati Males and Females having Normal Occlusion

Patel¹,

Bhatia

Mahadevia³

et al. 2012

JIOS

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Aim:To analyze and determine maxillary and mandibular arch form of Gujarati (Indian) adults with normal occlusions. Materials and methods:Fifty seven study models of untreated individuals were examined. Six measurements of both the arches were taken, and five independent ratios were determined. Character and shape of both the arches were studied and compared using various statistical analyses for males and females between both the arches. Results:As moving from anterior to posterior, both the arches diverge proportionally, except in second molar area where slight convergence toward midline was noted. Females had proportionally narrower arch dimensions than those for males. Five arch forms were determined according to relative deviations of various ratio combinations, and all subjects were classified for mandibular arch form by nonhierarchical stepwise method.

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“…Los factores ambientales y genéticos también influyen la forma de los maxilares (8,9). Diversos aspectos culturales y geográficos de las poblaciones influencian el crecimiento craneofacial y generan patrones que forman y delimitan diferentes biotipos faciales, (10) afectando los arcos dentales, que son estructuras fundamentales en el diagnóstico y plan de tratamiento ortodón-cico, debido a su capacidad de influir el espacio disponible, estética dental, sonrisa, estabilidad oclusal y periodontal a largo plazo (11,12). Por esto las leyes naturales de la variabilidad biológica entre cada paciente deben ser respetadas y conservadas.…”

Section: Introductionunclassified