Relationship between the curve of Spee and craniofacial variables: A regression analysis

Halimi, Abdelali; Benyahia, Hicham; Azeroual, Mohamed-Faouzi; Bahije, Loubna; Zaoui, Fatima

doi:10.1016/j.ortho.2018.03.025

Cited by 4 publications

(6 citation statements)

References 12 publications

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“…Farella et al also detected a negative relationship between the SNB angle and the CoS curvature, but not the SNA angle [ 12 ]. Furthermore, our findings are in contrast with the study of Halimi et al [ 13 ], who did not find any such correlation. Therefore, a meaningful correlation between the CoS and the sagittal craniofacial measurements cannot be supported at present.…”

Section: Discussioncontrasting

confidence: 99%

“…It is a common clinical belief that the CoS is related to the vertical dimension, with a brachyfacial craniofacial pattern being associated with a deeper CoS and an increased overbite. Our data, which are representative of the average vertical variation in the population, cannot corroborate this argument, and this is also in agreement with other similar studies [ 8 , 12 , 13 ]. Perhaps such an association could have been established if extreme vertical patterns were compared to each other, but this remains to be tested.…”

Section: Discussionsupporting

confidence: 89%

“…So far, there is conflicting information available in the literature regarding a potential association of the depth of the CoS with various craniofacial characteristics. Farella et al found a negative association of the CoS with the SNB angle, which was not in accordance with the findings of Halimi et al, who did not detect any association [ 12 , 13 ]. This could be attributed to the heterogeneity of the exact methods that are present in the literature.…”

Section: Introductionmentioning

confidence: 77%

“…In some cases, error prone methods are utilized, such as the use of a camera [ 12 ], which might be affected by lens distortion. The definition of the CoS also varies across studies, as it is either defined only by the tooth cusps [ 9 ] or extended to the contact points [ 10 , 13 ] and the distances were either averaged or only the maximum ones were considered. Furthermore, we did not identify any study testing the association of craniofacial skeletal pattern to the duration of the mandibular arch levelling.…”

Section: Introductionmentioning

confidence: 99%

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Association of Craniofacial Patterns with the Curve of Spee and the Time Required for Orthodontic Levelling

et al. 2022

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The curve of Spee (CoS) is an important parameter for an individualized treatment plan. The available information regarding a potential association of the depth of the curve of Spee with various skeletal craniofacial characteristics is conflicting and it is also unknown whether certain craniofacial parameters affect the duration of the levelling phase of orthodontic treatment. A prospective sample of 32 patients with mild to moderate crowding that underwent orthodontic treatment with full fixed appliances was used to study these topics. The craniofacial characteristics were captured on pre-treatment lateral cephalometric radiographs and measurements of the CoS were performed on the initial 3D digital dental models using the Viewbox 4 software. Non-parametric statistics and Spearman’s correlations were applied. Weak negative correlations were detected between the CoS depth and the SNA and SNB angles. There was no other association between the CoS and craniofacial parameters, including various anteroposterior measurements. Furthermore, there was no significant association of any craniofacial parameter with the duration of the levelling. Contrary to certain clinical beliefs, it can be argued that the craniofacial characteristics are not associated with the CoS and the time required for its levelling in subjects with moderate pre-treatment CoS depth.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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Association of Craniofacial Patterns with the Curve of Spee and the Time Required for Orthodontic Levelling

et al. 2022

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“…Variations in face patterns in humans result in a differentiating COS. Deep overbites, on the other hand, are typically associated with an exaggerated COS [10][11][12]. The presence of a normal curve of Spee allows teeth to withstand occlusal stresses; on contrary an exaggerated COS causes muscular imbalance, ultimately leading to incorrect functional occlusion [13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Variability in depth of curve of Spee and its associated skeletal and dental implications in population of Pakistan

Khalid¹,

Ahmed²,

Khattak³

et al. 2023

ijhs

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Background and Aim: The curve of Spee (COS) is a physiological entity in human dentition. A functional masticatory system necessitates an appropriate occlusal curvature. The primary objective of this investigation was to assess the skeletal and dental parameters in individuals with variation in the depth of curve of Spee. Materials and Methods: A total of 276 patients with pre-treatment lateral cephalograms and dental cast models were investigated in the Orthodontics and Dentofacial Orthopedics Unit of a Tertiary Care Hospital of Mardan, Pakistan from January 2021 to December 2022. Patients with no prior history of orthopedic treatment for functional jaw, prosthodontic treatment, no prior history of cleft lip and palate and cranio-facial disorders were enrolled. Ethical approval was obtained and all the patients were categorized into three groups based on the depth of curve of Spee (COS): Group-I (flat curvature < 2 mm), Group-II (normal curvature 2-3 mm), and Group-III (deep curvature > 3 mm). Lateral cephalometric analysiswas done to measure the four angular and four linear parameters. Molar relation, overbite, COS depth, and overjet were measured based on the occlusal classification. SPSS version 27 was used for data analysis.

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The variability of the curve of Spee

et al. 2020

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Relationship between the curve of Spee and craniofacial variables: A regression analysis

Cited by 4 publications

References 12 publications

Association of Craniofacial Patterns with the Curve of Spee and the Time Required for Orthodontic Levelling

Association of Craniofacial Patterns with the Curve of Spee and the Time Required for Orthodontic Levelling

Variability in depth of curve of Spee and its associated skeletal and dental implications in population of Pakistan

The variability of the curve of Spee

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