PDF herunterladen
CC BY 4.0 · Eur J Dent 2024; 18(04): 1164-1171
DOI: 10.1055/s-0044-1785186
Original Article

The Role of Dental Arch Dimensions and Impacted Third Molars on Mandibular Anterior Segment Crowding

Mimoza Selmani 
1   AAB College, Faculty of Dentistry, Prishtina, Kosovo
,
Manushaqe Selmani Bukleta
2   College of Medical Science, Faculty of Dentistry, “Rezonanca” Pristina, Kosovo; Dental Clinic, Mdent Family Dentistry, Prishtina, Kosovo
,
Shkelzen B. Duci
3   Clinic of Plastic Surgery, University Clinical Center of Kosovo, Kosovo
› Institutsangaben
› Weitere Informationen
Auch verfügbar auf
   Lizenzen und Reprints

Abstract

Objectives This study aimed to investigate the potential impact of arch dimensions and unerupted third molars on mandibular anterior segment crowding.

Materials and Methods This study included a total of 240 subjects with an average age of 18 years seeking orthodontic treatment. Panoramic radiographs, alginate impressions, and study models were taken for measurements. This study utilized the Ganss ratio to calculate the ratio of retromolar space to the width of the crown of the third molar, along with other measurements such as intercanine and intermolar widths, arch perimeter, and arch length to assess dental arch dimensions.

Results We found that the Ganss ratio and angle B values on both the right and left sides were significantly different between the noncrowding and crowding groups, suggesting a potential role for third molars in mandibular anterior segment crowding. Additionally, there was an increase in angle A on both sides in the crowding group, indicating a more acute angle between the anterior teeth. This study also observed a reduction in the retromolar space on the third molars in the crowding group, further supporting the potential role of third molars in mandibular anterior segment crowding.

Conclusion The findings of our study provide substantial evidence to suggest that third molars may contribute to mandibular anterior segment crowding. These findings highlight the importance of carefully evaluating dental arch dimensions and the presence of third molars when assessing and treating mandibular anterior segment crowding.

Keywords

arch - crowding - dimensions - third molars

Ethical Approval Statement

The research was conducted in compliance with the ethical principles stated in the Declaration of Helsinki. The study was approved by the Local Research Ethics Committee in Kosovo.


Patient Consent Statement

All participants were provided with detailed information about the study's purpose. Participants were informed that their participation was voluntary, and they had the right to withdraw from the study at any time. Verbal consent was obtained from all participants. The confidentiality and anonymity of the participants were maintained throughout the study.




Publikationsverlauf

Artikel online veröffentlicht:
14. Mai 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

Thieme Medical and Scientific Publishers Pvt. Ltd.
A-12, 2nd Floor, Sector 2, Noida-201301 UP, India

 

  • References

  • 1 Richardson ME. The role of the third molar in the cause of late lower arch crowding: a review. Am J Orthod Dentofacial Orthop 1989; 95 (01) 79-83
    CrossrefPubMedSuche in Google Scholar
  • 2 Leighton BC, Hunter WS. Relationship between lower arch spacing/crowding and facial height and depth. Am J Orthod 1982; 82 (05) 418-425
    CrossrefPubMedSuche in Google Scholar
  • 3 Richardson ME. The etiology of late lower arch crowding alternative to mesially directed forces: a review. Am J Orthod Dentofacial Orthop 1994; 105 (06) 592-597
    CrossrefPubMedSuche in Google Scholar
  • 4 Lindauer SJ, Laskin DM, Tüfekçi E, Taylor RS, Cushing BJ, Best AM. Orthodontists' and surgeons' opinions on the role of third molars as a cause of dental crowding. Am J Orthod Dentofacial Orthop 2007; 132 (01) 43-48
    CrossrefPubMedSuche in Google Scholar
  • 5 Husain S, Rengalakshmi S. Correlation between mandibular third molar and mandibular incisor crowding: a retrospective CBCT-based study. J Dent Res Dent Clin Dent Prospect 2021; 15 (04) 247-250
    CrossrefPubMedSuche in Google Scholar
  • 6 Tüfekçi E, Svensk D, Kallunki J, Huggare J, Lindauer SJ, Laskin DM. Opinions of American and Swedish orthodontists about the role of erupting third molars as a cause of dental crowding. Angle Orthod 2009; 79 (06) 1139-1142
    CrossrefPubMedSuche in Google Scholar
  • 7 Cotrin P, Freitas KMS, Freitas MR, Valarelli FP, Cançado RH, Janson G. Evaluation of the influence of mandibular third molars on mandibular anterior crowding relapse. Acta Odontol Scand 2020; 78 (04) 297-302
    CrossrefPubMedSuche in Google Scholar
  • 8 Muchnic HV. Retention or continuing treatment. Am J Orthod 1970; 57 (01) 23-34
    CrossrefPubMedSuche in Google Scholar
  • 9 Ras F, Korstjens CM, Kuitert RB, van Ginkel FC, Prahl-Andersen B. The stability of orthodontic treatment over the long term. Ned Tijdschr Voor Tandheelkunde 1992; 99 (09) 355-361
    Suche in Google Scholar
  • 10 Reitan K. Experiments on the rotation of teeth and their subsequent retention. Trans Eur Orthod Soc 1958; 34: 24-140
    Suche in Google Scholar
  • 11 Ganss C, Hochban W, Kielbassa AM, Umstadt HE. Prognosis of third molar eruption. Oral Surg Oral Med Oral Pathol 1993; 76 (06) 688-693
    CrossrefPubMedSuche in Google Scholar
  • 12 Lavelle CL, Foster TD. A cross-sectional study into age changes of the human dental arch. Arch Oral Biol 1969; 14 (01) 71-86
    CrossrefPubMedSuche in Google Scholar
  • 13 Niedzielska I. Third molar influence on dental arch crowding. Eur J Orthod 2005; 27 (05) 518-523
    CrossrefPubMedSuche in Google Scholar
  • 14 Lundstrom A. The etiology of crowding of teeth and its bearing on orthodontic treatment. Eur Orthod Soc (report) 1951; 176-191
    Suche in Google Scholar
  • 15 Nance HN. The limitations of orthodontic treatment; mixed dentition diagnosis and treatment. Am J Orthod 1947; 33 (04) 177-223
    PubMedSuche in Google Scholar
  • 16 Proffit WR. Contemporary orthodontics-e-book. 6th ed. Elsevier Health Sciences; 2018
    Suche in Google Scholar
  • 17 Proffit WR, Fields Jr HW, Sarver DM. Contemporary Orthodontics. Elsevier Health Sciences; 2013
    Suche in Google Scholar
  • 18 Fastlicht J. Crowding of mandibular incisors. Am J Orthod 1970; 58 (02) 156-163
    CrossrefPubMedSuche in Google Scholar
  • 19 Ferrario VF, Sforza C, Miani Jr A, Tartaglia GM, Colombo A. Association between crossbite and asymmetric mandibular condylar position. J Dent Res 2002; 81 (10) 677-681
    Suche in Google Scholar
  • 20 Sharma S, Tandon P, Nagar A, Singh GP, Singh G. A cephalometric appraisal of dentofacial pattern of north Indian adults with normal occlusion. J Orthod Sci 2014; 3 (03) 78-83
    Suche in Google Scholar
  • 21 Muhammed SA, Joda T, Hassan A. Tooth size discrepancies and Bolton's ratios: a review of literature. J Int Soc Prev Community Dent 2016; 6 (06) 517-523
    PubMedSuche in Google Scholar
  • 22 Zawawi KH, Melis M. The role of mandibular third molars on lower anterior teeth crowding and relapse after orthodontic treatment: a systematic review. ScientificWorldJournal 2014; 2014: 615429
    CrossrefPubMedSuche in Google Scholar
  • 23 Haider O, Sharaf MA, Abdulqader AA. et al. Three-dimensional relationship between the degree of bilateral impacted mandibular third molars angulation and the mandibular dental arch parameters: a cross-sectional comparative study. Clin Oral Investig 2023; 27 (08) 4301-4311
    CrossrefPubMedSuche in Google Scholar
  • 24 Howe RP, McNamara Jr JA, O'Connor KA. An examination of dental crowding and its relationship to tooth size and arch dimension. Am J Orthod 1983; 83 (05) 363-373
    CrossrefPubMedSuche in Google Scholar
  • 25 Waheed-Ul-Hamid M, Imran R. Dental crowding and its relationship to tooth size and arch dimensions. Pak Oral Dent J 2005; 25 (01) 47-52
    Suche in Google Scholar
  • 26 Mattila K, Altonen M, Haavikko K. Determination of the gonial angle from the orthopantomogram. Angle Orthod 1977; 47 (02) 107-110
    PubMedSuche in Google Scholar
  • 27 Mochizuki M, Hasegawa K, Machida Y. A longitudinal study of the development of crowded dental arch. Bull Tokyo Dent Coll 1998; 39 (01) 41-46
    PubMedSuche in Google Scholar
  • 28 Hattab FN, Alhaija ES. Radiographic evaluation of mandibular third molar eruption space. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1999; 88 (03) 285-291
    CrossrefPubMedSuche in Google Scholar
  • 29 Wenzel A, Aagaard E, Sindet-Pedersen S. Evaluation of a new radiographic technique: diagnostic accuracy for mandibular third molars. Dentomaxillofac Radiol 1998; 27 (05) 255-263
    CrossrefPubMedSuche in Google Scholar
  • 30 Zachrisson BU. Mandibular third molars and late lower arch crowding–the evidence base. World J Orthod 2005; 6 (02) 180-186
    PubMedSuche in Google Scholar
  • 31 Niedzielska IA, Drugacz J, Kus N, Kreska J. Panoramic radiographic predictors of mandibular third molar eruption. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006; 102 (02) 154-158 , discussion 159
    CrossrefPubMedSuche in Google Scholar