Evaluation of arch forms depending on the angle classification

Bourzgui, Farid; Khribchi, Asmaa; Rachdy, Zineb; Housbane, Samy; Othmani, Mohamed Bennani

doi:10.1016/j.ortho.2016.10.017

Cited by 3 publications

(2 citation statements)

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“…Besides, Lloyd et al 7 believe that MPA studies should be questioned where age was not paired between the case and control group, as it presents as a confounding factor. Therefore, it was also chosen by the malocclusion type (Angle's classification), since there is evidence that each malocclusion type can present different dental arch shapes 14 …”

Section: Discussionmentioning

confidence: 99%

The characteristics of palate and upper dental arch can be an anatomical marker for men with schizophrenia? Case‐control study

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Roussenq

Araújo

et al. 2020

Special Care in Dentistry

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Aims The aim of this study was to compare individuals with and without schizophrenia through the characteristics of the palate, such as width, length, depth, palate shape, and upper dental arch shape. Methods and results The sample was divided into one case group (n = 45) and two control groups (n = 90; 45 individuals each group). Groups were paired by variables: sex, age, and malocclusion type. All analyses were performed on upper dental arch plaster models. All individuals were male and the mean age was 28.56 (SD: 7.82) years. The frequency of the malocclusion type observed was 54.1% (Class I), 22.2% (Class II), and 23.7% (Class III). Statistically significant difference was observed between the case and control groups for the variables palate shape (P = .004) and upper dental arch shape (P = .003). The case group had a higher frequency of the deep or grooved palate shape (57.8%) and parabolic dental arch shape (48.9%). There was no statistically significant difference for the palate width, length, and depth (P > .05). Conclusions There was an evidence that the deep or grooved palate shape and parabolic dental arch shape are morphological characteristics of the palate in men with schizophrenia.

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Section: Discussionmentioning

confidence: 99%

The characteristics of palate and upper dental arch can be an anatomical marker for men with schizophrenia? Case‐control study

Mobile

Roussenq

Araújo

et al. 2020

Special Care in Dentistry

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“…Orthodontists are particularly interested in the study of dental arches, and the proper selection of orthodontic wires may improve the effectiveness of tooth movement, resulting in straighter and more stable teeth and lowering the risk of recurring orthodontic issues after treatment. [ 6 7 ]…”

Section: Introductionmentioning

confidence: 99%

Dental arch form in a sample of Iraqi adults with sickle cell anemia using 3D scanning technique: A cross-sectional study

Abdullah,

A. Ahmad

2023

J Orthodont Sci

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OBJECTIVE: Sickle cell anemia (SCA) is a hematological condition that involves the synthesis of sickle-shaped, hemoglobin with a short lifespan. This study employed three-dimensional (3D) scanning to pinpoint the most common arch form in a sample of Iraqi adults with SCA. MATERIALS AND METHODS: A cross-sectional study included maxillary and mandibular casts of 50 patients (25 male and 25 female) with SCA and 50 participants in a control group (25 male and 25 female). The facio-axial (FA) point was digitized on each tooth's labial or buccal surface using SolidWorks® 2020 software. The dimensions of the arch were calculated using two proportional measures and four linear measurements. The dental arch form was determined using 3M templates, and the arches were categorized as square, ovoid, or tapered to establish the most-common arch form. Chi-square was used to compare arch form distribution, and an independent t -test was used to calculate the difference between the control group and the SCA group. RESULTS: The tapered arch was the predominant form in SCA males and females for the maxilla and the mandible. The molar vertical distance (upper and lower) was significantly higher in males in the SCA group than in males in the control group. There was no significant difference between females in the SCA group and females in the control group. CONCLUSION: Most patients with SCA had tapered arches. Sagittal jaw dimensions in males with SCA were more affected by marrow hyperplasia. There was little if any to no effect on females with SCA.

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Finite Element Analysis of Orthodontic Relapse in Different Maxillary Arch Form

Shao

et al. 2021

BIOI

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Background: Orthodontic relapse is fairly common; however, the mechanisms between relapse and the dental arch form remain unclear. The purpose of our study was to establish three-dimensional (3D) finite element models of different dental arch forms after orthodontic treatment and to analyze the states of different arches applied with various sagittal forces.Methods: By calculating the equations of different dental arch forms and combining them with a full maxillary arch (14 teeth), 3D finite element models of square, oval, and tapered dental arches were established; they were designed to be subjected to anterior lingual, posterior mesial, and combined forces, respectively.Results: The von Mises stress and displacement of teeth under different forces were calculated for each loading scenario. Under the different forcing scenarios, all incisors had irregularity trends, and the inclination and intrusion of the canines were increased, and the premolars had a tendency to buccal or lingual crown tipping or even intrusion in our study. The tapered arch was the most stable and had the smallest displacement and von Mises stress, followed by the ovoid arch; the most unstable arch was the square arch.Conclusions: To achieve a stable orthodontic effect, a tapered or ovoid arch, rather than a square arch, should be chosen as the final outcome of treatment.

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Evaluation of arch forms depending on the angle classification

Cited by 3 publications

References 10 publications

The characteristics of palate and upper dental arch can be an anatomical marker for men with schizophrenia? Case‐control study

The characteristics of palate and upper dental arch can be an anatomical marker for men with schizophrenia? Case‐control study

Dental arch form in a sample of Iraqi adults with sickle cell anemia using 3D scanning technique: A cross-sectional study

Finite Element Analysis of Orthodontic Relapse in Different Maxillary Arch Form

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