Role of third molars in orthodontics

Almpani, Konstantinia; Kolokitha, Olga-Elpis

doi:10.12998/wjcc.v3.i2.132

Cited by 41 publications

(31 citation statements)

References 56 publications

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“…15 On the other hand, Studies have suggested that factors like fixed orthodontic treatment which involves extraction of lower premolars followed by subsequent closure of residual spaces allowed the position of many impacted third molars to improve significantly by increasing the available space from 4 mm to 11 mm and decreasing the distance to the occlusal plane from 12 to 10 mm. 16 The minimum age of participants in this study was 20 years (mean: 29 ± 6 years). Growth of the jaws is basically completed by the age of 17 years 16 ; therefore at the age of 20, it is possible to distinguish whether a third molar is in normal eruptive process or will remain impacted in the jaw.…”

Section: Discussionmentioning

confidence: 99%

Pattern of third molar impaction in Libyan population: A retrospective radiographic study

Hatem

Bugaighis

Taher

2016

The Saudi Journal for Dental Research

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Objectives: The aim of the present study was to radiographically evaluate the pattern of third molar impaction in a sample of Libyan patients, in terms of age, gender, angulation of impaction, level of eruption and available retromolar space using panoramic radiographs. Furthermore, cross tabulation between patterns of impaction and gendernarch were evaluated for any significant difference. Study design: This retrospective study comprised 300 orthopantomograms (OPGs) of patients attending a private dental clinic in Benghazi between 2008 and 2013. Radiographic assessment was carried out to evaluate the prevalence of impaction, angular position of impaction, level of eruption and available retromolar space. Results were analysed using Pearson's coefficient test and Student's t-test Results: Among 1200 third molars reviewed, 843 (70%) were classified as impacted, of which 371 (44%) were in the maxilla and 472 (56%) were in the mandible. The most prevalent angular position was mesioangular (34.6%) followed by vertical (31.3%) and distoangular (27.7%). A significant association existed between angular position and arch (P < 0.001).Class IIA was the most common Pell and Gregory classification (38.6%). Significant association was found between the level of eruption and arch (P < 0.001). Bilateral impaction was more common than unilateral impaction in both arches. Conclusion: Our study highlights mesioangular impaction as the most frequently encountered angular position. The most common level of eruption was Level B; and the majority of impacted third molars (72.7%) had less than adequate space for eruption. ª 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Discussionmentioning

confidence: 99%

Pattern of third molar impaction in Libyan population: A retrospective radiographic study

Hatem

Bugaighis

Taher

2016

The Saudi Journal for Dental Research

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“…30 Despite the fact that the role of third molars has been the subject of research, clinical interest, and debate for years, there is still a lack of scientific evidence from high-quality clinical studies on this subject. 42 However, Normando et al 43 suggest that, in general, the best clinical conduct is not to proceed with the prophylactic extraction of third molars, except in situations where removal of a third molar is mandatory from the beginning of treatment.…”

Section: Discussionmentioning

confidence: 99%

Remoção profilática de terceiros molares assintomáticos não irrompidos: é justificável?

Pedrosa

Silva

Cordeiro

et al. 2017

Rev. Bras. Odontol.

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Objective: to review the literature currently available on the evidence that does or does not justify the prophylactic extraction of unerupted asymptomatic third molars. Material and Methods: the electronic databases PubMed, Capes Periodicals, Web of Science and Scopus were searched from November to December 2016 by two authors, simultaneously, using as search terms: Terceiro Molar/Molar, Third AND Extração Profilática/Prophylatic Removal OR Prophylatic Extraction. We included articles from original research and clinical trials published in English and Portuguese. No limits were applied to the date of publication. Review articles and clinical case reports were removed. Results: we identified 13 studies that addressed, at some aspect, the prophylactic removal of unerupted asymptomatic third molars. The results of this literature review which alluded to the potential for the formation of pathological alterations in asymptomatic third molars are conflicting; While some justifies the prophylactic procedure based on the possible formation of associated lesions, other scientific evidence does not support such practice. Conclusion: in view of the conflicting viewpoints found in the literature, the prophylactic removal of asymptomatic third molars requires case-by-case evaluation of each patient, and the decision-making process, regarding the retention versus the prophylactic removal of these teeth should be based on scientific evidence combined with the clinical experience of the professional.

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“…Zurzeit gibt es keine evidenzbasierte Studie, die ein prophylaktisches Entfernen gesunder impaktierter Weisheitszähne unterstützt. Ist jedoch eine Extraktion indiziert, sollte diese bevorzugt vor dem Erwachsenenalter durchgeführt werden, um das Risiko für Komplikationen gering zu halten [25].…”

Section: Frontzahn-crowding Und Prophylaktische Entfernung Von Weisheunclassified

Weisheitszähne in der Kieferorthopädie

Neuner

2018

Inf Orthod Kieferorthop

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Zusammenfassung50% der Menschen mit dritten Molaren haben Probleme mit diesen. Das Vorhandensein von Weisheitszähnen muss in der kieferorthopädischen Planung berücksichtig werden. Es gibt viele unterschiedliche Aspekte zum Thema Weisheitszähne: Agenesie, Retention, Zahnverlagerung, Malokklusion, Autotransplantation, Klase-III- Entwicklung, um einige zu erwähnen. Für Patient und Behandler besonders interessant ist auch die Rolle der Weisheitszähne in Zusammenhang mit einer Frontengstand-Entwicklung. Leider gibt es eine sehr kontroverse Datenlage und weitere qualitativ hochwertige Studien zu diesem Thema sind notwendig.

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Role of third molars in orthodontics

Cited by 41 publications

References 56 publications

Pattern of third molar impaction in Libyan population: A retrospective radiographic study

Pattern of third molar impaction in Libyan population: A retrospective radiographic study

Remoção profilática de terceiros molares assintomáticos não irrompidos: é justificável?

Weisheitszähne in der Kieferorthopädie

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