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. 2024 Feb;23(1):75-80.
doi: 10.1007/s12663-023-02021-3. Epub 2023 Oct 5.

Prevalence of Impacted Teeth: A Radiographical Retrospective Rio de Janeiro Population-Based Study

Christiane Guimarães da Silva Menezes  1 , Suelen Cristina Sartoretto  2 , Rafael Seabra Louro  2 , João Baptista de Moraes  1 , Vittorio Moraschini  1   2
Affiliations

Prevalence of Impacted Teeth: A Radiographical Retrospective Rio de Janeiro Population-Based Study

Christiane Guimarães da Silva Menezes et al. J Maxillofac Oral Surg. 2024 Feb.

Abstract

Background: The early detection of impacted teeth is essential for the prevention of future malocclusions and possible lesions. The aim of this study is to assess the prevalence of impacted teeth and associated pathological lesions.

Methods: One thousand six hundred and two panoramic radiographs were analyzed for this retrospective study. The prevalence of impacted teeth, the presence of supernumerary teeth and cystic or tumoral lesions associated, and the type of angulation of third molars using Winter's classification were accessed. The descriptive statistics and the Chi-squared test were performed (P < 0.05).

Results: One thousand three hundred and ninety-seven panoramic radiographs fulfilled impacted criteria. A prevalence of 541 (38.7%) impacted teeth was observed, with the female gender significantly higher (P < 000.1). Of the total impacted teeth (n = 541), the overall mean impacted of lower third molars was 55.6%. Twenty-nine (5.3%) supernumerary teeth and four lesions were verified. The angulations most observed in the upper (76.6%) and lower (39.2%) third molars were vertical (P < 000.1) and mesioangulated (P < 000.1), respectively.

Conclusion: The impacted tooth prevalence was 38.7%, more common in females than in males. The lower third molars presented the highest prevalence of impacted, and the most common angulations were vertical and mesioangulated. Only four associated lesions were observed.

Keywords: Impacted teeth; Prevalence; Supernumerary teeth; Third molars.

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Conflict of interest statement

Conflict of interestAuthor Christiane Guimarães da Silva Menezes declares that she has no conflict of interest. Author Suelen Cristina Sartoretto declares that she has no conflict of interest. Author João Baptista de Moraes declares that he has no conflict of interest. Author Rafael Seabra Louro declares that he has no conflict of interest. Author Vittorio Moraschini declares that he has no conflict of interest.

Figures

Fig. 1
Fig. 1
The positioning of the third molars was evaluated in relation to the long axis angulation (vertical, mesioangulated, distoangulated, or horizontal), according to Winter's classification. In addition, the presence of inverted teeth was also evaluated
Fig. 2
Fig. 2
Flow diagram of the screening and selection process
Fig. 3
Fig. 3
Prevalence of angulation of third molars in relation to Winter's classification. A The vertical position was the most prevalent for the upper third molars, B while the mesioangulated position was the most prevalent for the lower third molars. *Chi-squared test (P < 000.1)
See this image and copyright information in PMC

References

    1. Pedro FL, Bandéca MC, Volpato LE, Marques AT, Borba AM, Musis CR, Borges AH. Prevalence of impacted teeth in a Brazilian subpopulation. J Contemp Dent Pract. 2014;15:209. doi: 10.5005/jp-journals-10024-1516. - DOI - PubMed
    1. Breik O, Grubor D. The incidence of mandibular third molar impactions in different skeletal face types. Aust Dent J. 2008;53:320. doi: 10.1111/j.1834-7819.2008.00073.x. - DOI - PubMed
    1. Santosh P. Impacted mandibular third molars: review of literature and a proposal of a combined clinical and radiological classification. Ann Med Health Sci Res. 2015;5:229. doi: 10.4103/2141-9248.160177. - DOI - PMC - PubMed
    1. Yildirim D, Yilmaz HH, Aydin U. Multiple impacted permanent and deciduous teeth. Dentomaxillofac Radiol. 2004;33:133. doi: 10.1259/dmfr/12620936. - DOI - PubMed
    1. Rokbah MQA, Al-Moudallal Y, Al-Khanati NM, Ali-Hsaian J, Kokash MB. Effects of German chamomile on symptoms and healing after mandibular third molar surgeries: a triple-blind split-mouth randomised controlled trial. Int J Surg Open. 2023;56:100639. doi: 10.1016/j.ijso.2023.100639. - DOI

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