Effects on the Dental Arch Form Using a Preadjusted Appliance with Premolar Extraction in Class I Crowding

Miyake, Hironao; Ryu, Tatsuo; Himuro, Toshihiko

doi:10.2319/062707-296.1

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…Miyake, Ryu and Himuro 25 compared the dental arch form at baseline and after the extraction of premolars in individuals with Class I crowding treated with preadjusted brackets. They found that the maxillary dental arch might become tapered after treatment with extractions.…”

Section: Discussionmentioning

confidence: 99%

Tooth extractions in Orthodontics: first or second premolars?

Araújo

Caldas

2019

Dental Press J. Orthod.

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Tooth crowding and protrusions demand rigorous attention during orthodontic planning that includes the extraction of first and second premolars. Some characteristics, such as dentoalveolar bone discrepancies, maxillomandibular relations, facial profile, skeletal maturation, dental asymmetries and patient cooperation, are important elements of an orthodontic diagnosis. This study discusses the options of treatments with extractions and describes the correction of a Class I malocclusion, bimaxillary protrusion, severe anterior crowding in both dental arches and tooth-size discrepancy, using first premolar extractions.

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Section: Discussionmentioning

confidence: 99%

Tooth extractions in Orthodontics: first or second premolars?

Araújo

Caldas

2019

Dental Press J. Orthod.

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“…Several points were used for the representation of the posterior teeth, thus providing more information about their spatial position and inclination. Other studies have used reference points on the calculated centroids of the occlusal surfaces (35), at contact points (14), at the facial axis point (18,36), or on glass beads simulating bonded brackets (7).…”

Section: Discussionmentioning

confidence: 99%

“…Most researchers have focused on the normal or ideal dental arch and have used algebraic or geometric formulae to describe it. Such geometric figures and mathematical functions, most of which enforce symmetry, include: semicircle (10), ellipse (1,11), parabola (12), hyperbola (13), catenary curve (14), the cubic spline function (15), conic sections (8,16), polynomial European Journal of Orthodontics, 2016, 202-211 doi:10.1093/ejo/cjv019 Advance Access publication 3 April 2015 functions, including the fourth-order polynomial (17,18) and the sixth-order polynomial (7,9), Euclidean distance matrices (19), Fourier series (20), and the beta function (3,9). Mixed models have also been used, such as, ellipse and parabola (21), a semicircle joined to straight segments (10) and a combination of the polynomial, parabola and hyperbolic cosine functions (22).…”

Section: Introductionmentioning

confidence: 99%

Shape variation and covariation of upper and lower dental arches of an orthodontic population

Papagiannis

Halazonetis

2015

EORTHO

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“…The size of pentamorphic pattern is the research result of size average and dental arch shape conducted by Ricketts to Caucasoid race, thus if the 12 which indicate that race difference causes the difference in dental arch shape.…”

Section: Discussionmentioning

confidence: 99%

Mandibulary dental arch form differences between level four polynomial method and pentamorphic pattern for normal occlusion sample

et al. 2011

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The aim of an orthodontic treatment is to achieve aesthetic, dental health and the surrounding tissues, occlusal functional relationship, and stability. The success of an orthodontic treatment is influenced by many factors, such as diagnosis and treatment plan. In order to do a diagnosis and a treatment plan, medical record, clinical examination, radiographic examination, extra oral and intra oral photos, as well as study model analysis are needed. The purpose of this study was to evaluate the differences in dental arch form between level four polynomial and pentamorphic arch form, and to determine which one is best suitable for normal occlusion sample. This analytic comparative study was conducted at Faculty of Dentistry Universitas Padjadjaran on 13 models by comparing the dental arch form using the level four polynomial method based on mathematical calculations, the pattern of pentamorphic arch and mandibular normal occlusion as a control. The results obtained were tested using statistical analysis T student test. The results indicate a significant difference both in the form of level four polynomial method and pentamorphic arch form, when compared with mandibular normal occlusion dental arch form. Level four polynomial fits better, compare to pentamorphic arch form.

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Effects on the Dental Arch Form Using a Preadjusted Appliance with Premolar Extraction in Class I Crowding

Abstract: It is necessary to anticipate that the upper dental arch form will become tapered during extraction treatment for Class I crowding and to select an appropriate arch form.

Cited by 9 publications

References 9 publications

Tooth extractions in Orthodontics: first or second premolars?

Tooth extractions in Orthodontics: first or second premolars?

Shape variation and covariation of upper and lower dental arches of an orthodontic population

Mandibulary dental arch form differences between level four polynomial method and pentamorphic pattern for normal occlusion sample

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