The curve of Spee and craniofacial morphology: a multiple regression analysis

Farella, Mauro; Michelotti, Ambrosina; Eijden, T.M.G.J. van; Martina, R

doi:10.1034/j.1600-0722.2002.21255.x

Cited by 67 publications

(74 citation statements)

References 14 publications

(30 reference statements)

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“…We have previously found that the mean errors in duplicate cephalometric measurements between examiners were in general low. The errors for the distances varied between 0.2 and 1.1 mm, and for the angles between 0.1 and 1.0 degrees (27).…”

Section: Methodsmentioning

confidence: 99%

Habitual daily masseter activity of subjects with different vertical craniofacial morphology

Farella

Michelotti

Carbone

et al. 2005

European J Oral Sciences

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Little is known about the habitual daily masticatory activity of subjects with different vertical craniofacial morphology. The purpose of the present study was to compare the daily long-term muscle activity of short-face subjects with that of long-face subjects as assessed in their natural environment. Digital photographs of the facial profile were obtained from a sample of 300 subjects and the ratio between anterior total and anterior lower facial height was assessed (Vertical Facial Index: VFI). Fourteen long-face and 16 short-face subjects were selected from the opposite tails of the frequency distribution of VFI. Long-term masseter activity was monitored for 8 h d(-1) in the natural environment by means of portable one-channel electromyograph recorders over three working days. Assessments included calculation of the number of activity periods (APs) per h (N/h), their mean amplitude (Amean), and their mean duration (Dur). The maximal electromyogram activity did not differ significantly between the short-face and the long-face subjects. There was no significant difference between the two groups investigated in N/h, in Amean and Dur. The findings suggest that habitual activity of masseter muscle in the natural environment was not influenced by the vertical craniofacial morphology as assessed in the present study.

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Section: Methodsmentioning

confidence: 99%

Habitual daily masseter activity of subjects with different vertical craniofacial morphology

Farella

Michelotti

Carbone

et al. 2005

European J Oral Sciences

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“…It appears that craniofacial morphology is just of one of the many factors influencing its development. [31–33] The curve of Spee is only influenced to a minor extent by craniofacial morphology. The curve is greatly influenced by the horizontal position of the condyle and is weakly influenced by the vertical craniofacial dimension and by the position of the mandible with respect to the anterior cranial base.…”

Section: Curve Of Spee – From Flat To Mildmentioning

confidence: 99%

Significance of curve of Spee: An orthodontic review

Kumar

Tamizharasi

2012

J Pharm Bioall Sci

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Exaggerated curve of Spee is frequently observed in dental malocclusions with deep overbites. Such excessive curve of Spee alters the muscle imbalance, ultimately leading to the improper functional occlusion. It has been proposed that an imbalance between the anterior and the posterior components of occlusal force can cause the lower incisors to overerupt, the premolars to infraerupt, and the lower molars to be mesially inclined. This altered condition requires specialized skills for the practitioner. It would be useful if we have a thorough knowledge of how and when this curve of Spee develops, so that it will aid us in our treatment. The understanding of why the curve of Spee develops is limited in literature. The purpose of this article is to increase our knowledge regarding the development and its effect on dentition and its treatment in exaggerated cases.

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“…Farella et al (13) reported that the craniofacial morphology had a small effect on the depth of COS. Given the limited number of studies with a high level of evidence in this respect, individuals with craniofacial abnormalities, including facial asymmetry, syndrome, and other issues, were not included in the study to prevent any potential interaction.…”

Section: Discussionmentioning

confidence: 99%

“…There is no significant relationship between COS and gender, age, and facial skeletal morphology (13,14). However, there are some studies suggesting that the deep-bite cases are associated with the increased depth of the COS (15).…”

Section: Introductionmentioning

confidence: 92%

Evaluation of the Relationship between Curve of Spee, WALA-FA Distance and Curve of Wilson in Normal Occlusion

Di̇ndaroğlu¹,

Duran²,

Tekeli³

et al. 2017

Turk J Orthod

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Objective: To test the hypotheses that (i) there is a significant correlation between the curve of Spee (COS), basal arch (WALA ridge) to dental arch distance (WALA-FA distance) and curve of Wilson (CW) and that (ii) the deepening of the COS is affected by the CW and the WALA-FA distance.Methods: Mandibular models of 50 patients aged between 20 and 35 years were scanned with TRIOS. The xyz coordinate system was determined, and a reference occlusal plane was generated. The depth of the COS, the CW, and WALA-FA distance were measured using an engineering software. Results:The greatest difference in the measurement of the depth of the COS between the right and left was found to be 0.41±0.50 mm in the first molar teeth. On the basis of the results of Pearson correlation analysis, there was no strong correlation between the depth of the COS, the CW, and the WALA-FA distance. Conclusion:It was shown that there was no strong correlation between the depth of COS, CW, and WALA-FA distance. The CW and WALA-FA distance could not be effective in the deepening of the COS.

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The curve of Spee and craniofacial morphology: a multiple regression analysis

Cited by 67 publications

References 14 publications

Habitual daily masseter activity of subjects with different vertical craniofacial morphology

Habitual daily masseter activity of subjects with different vertical craniofacial morphology

Significance of curve of Spee: An orthodontic review

Evaluation of the Relationship between Curve of Spee, WALA-FA Distance and Curve of Wilson in Normal Occlusion

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