Is arch form influenced by sagittal molar relationship or Bolton tooth-size discrepancy?

Aldrees, Abdullah M.; Al-Shujaa, Abdulmajeed M.; Alqahtani, Mohammad A.; Aljhani, Ali S.

doi:10.1186/s12903-015-0062-2

Cited by 6 publications

(5 citation statements)

References 39 publications

(60 reference statements)

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“…51 A few investigators assessed the possible correlation between the three arch forms (square, ovoid, and tapered) and tooth-size discrepancy in the Saudi population, the results revealed no association between the Bolton discrepancy and the arch form. 52 Finally, it is essential to consider that besides other important components such as skeletal component, soft tissue component, and other dental and skeletal evaluation factors of orthodontic treatment planning system, toothsize discrepancies evaluation is only an element of this system. Tooth-size discrepancies should be analyzed and focused at the same time when considering the other treatment problems.…”

Section: Review O F Literature O N T H E Correlation B E T W E E N Tooth Size Discrepancies a N D Angle's Class I Ii A N D Iii Malocclusimentioning

confidence: 99%

A Review on Comparison of Tooth Size Discrepancies among Angle\'s Class I, II, and III Malocclusion: Is There a Significance?

Jabri

Zhang

et al. 2019

The Journal of Contemporary Dental Practice

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Aim:The contemporary article aims to review and compare various literatures concerning different conclusions regarding the correlation between tooth size discrepancy (TSD) and Angle's malocclusion groups. Background: Acquiring the ideal occlusion plays one of the major roles while designing the treatment plan for an orthodontic patient, any alterations in the individual tooth sizes are called TSD and will hinder this prime requirement. By determining the correct tooth size ratio, it further helps in acquiring the accurate interdigitation, balanced occlusion, and also predicting the orthodontic treatment results. Various investigations were carried out to know the correlation between tooth size discrepancies and different malocclusion groups, of which, a few reported a statistically significant difference whereas others reported no significant difference. Review results: A computerized database quest was operated utilizing the Medline database (Pubmed/Medline) for original research and review articles. Publications between 1946 and 2018 were included. Four hundred twenty-one articles were recovered from database search and, among them, 66 articles were selected to review the full-article. Conclusion: Although a comparison was done between the tooth-size ratios and malocclusion groups (classes I, II, and III), many investigators noted no significant difference but there is an inadequacy in the data particularly related to subgroups of Angle's classification of malocclusion among these investigations; therefore, further studies are required to interpret this correlation. Clinical significance: As there is high incidence of tooth size discrepancies noted in the previous literature orthodontist, Bolton's analysis regardless of malocclusion group, sex, and ethnicity is highly recommended.

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Section: Review O F Literature O N T H E Correlation B E T W E E N Tooth Size Discrepancies a N D Angle's Class I Ii A N D Iii Malocclusimentioning

confidence: 99%

A Review on Comparison of Tooth Size Discrepancies among Angle\'s Class I, II, and III Malocclusion: Is There a Significance?

Jabri

Zhang

et al. 2019

The Journal of Contemporary Dental Practice

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“…In this investigation, a 2D scanner was used, and this method was also used in other studies [ 2 , 4 , 20 , 32 , 33 , 34 ] as it is simple and practical for the large sample size. Similarly, arch form templates were used in evaluating the mandibular arch forms as they have been commonly used in orthodontic clinics to choose orthodontic prefabricated archwires for patients [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

Mandibular Clinical Arch Forms in Iraqi Population: A National Survey

Ali

Yassir

2022

Diagnostics

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This study aims to identify mandibular clinical arch forms and dimensions in the Iraqi population. Materials and methods: The study sample consisted of pre-treatment mandibular study models of the Iraqi population. The most labial aspect of 13 proximal contact areas was digitized using AutoCAD software to determine the clinical bracket point for every tooth. The dental arches were classified into three types: tapered, ovoid, and square. The arch dimensions were identified using four linear and two proportional measurements. Results: A total of 1005 study models were collected. The arch forms were distributed as ovoid (47%), tapered (36.2%), and square (16.8%), with no significant difference in the distribution between Arabs and Kurds. The ovoid arch form was predominant in class I and class III malocclusion, while the tapered arch form was predominant in class II. All the linear measurements were greater in the males than in the females. The arch widths decreased as the arch form shifted from square to ovoid to tapered, while the arch depths showed the reverse relation. Conclusions: According to this study, ovoid and tapered archwires should suit the majority of Iraqi patients. The ovoid arch form was the most predominant in the subjects with class I and class III malocclusion, while the tapered arch form was the most predominant in the class II subjects.

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“…5 A reduction of the opposing dentition may be necessary in these cases to balance the created discrepancy. 25 Conversely, it has been reported that an acceptable occlusion can be obtained when a Bolton discrepancy does exist, suggesting that IPR should not be performed in advance to correct a discrepancy but, rather, its necessity should be reassessed following alignment and an assessment of the final occlusion. 26…”

Section: Improved Aesthetics Of Anterior Teethmentioning

confidence: 99%

Interproximal reduction in orthodontics: why, where, how much to remove?

Meredith

Cannon

et al. 2017

Australasian Orthodontic Journal

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Interproximal reduction (IPR) is the deliberate removal of part of the dental enamel from the interproximal contact areas, which decreases the mesiodistal width of a tooth. This enamel may be removed for various reasons, but most commonly to create space during orthodontic treatment or to correct tooth-size discrepancies. Several authors have also encouraged its use as a method by which post-orthodontic stability might be enhanced, particularly in the lower anterior region. With the increased use of removable aligners for orthodontic treatment in which non-extraction therapy is often advocated, the use of IPR becomes a valuable tool to relieve crowding without over-expanding the dental arches. It is possible that inaccurate IPR could result in the over-reduction of enamel, the creation of ledges and notches in the proximal surfaces, increased tooth sensitivity or damage to the surrounding soft tissues. However, carefully conducted IPR performed within the recommended guidelines may be used as a safe method to gain space for the relief of crowding, to correct tooth-size discrepancies and to improve aesthetics and long-term stability in selected orthodontic patients.

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Is arch form influenced by sagittal molar relationship or Bolton tooth-size discrepancy?

Cited by 6 publications

References 39 publications

A Review on Comparison of Tooth Size Discrepancies among Angle\'s Class I, II, and III Malocclusion: Is There a Significance?

A Review on Comparison of Tooth Size Discrepancies among Angle\'s Class I, II, and III Malocclusion: Is There a Significance?

Mandibular Clinical Arch Forms in Iraqi Population: A National Survey

Interproximal reduction in orthodontics: why, where, how much to remove?

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