Assessment of role of mandibular third molar in lower anterior crowding among orthodontic patients of Kathmandu Nepal

Authors

  • Bashu Dev Pant, Dr Peoples Dental College and Hospital, Kathmandu, Nepal
  • Anjana Rajbhandari, Dr Peoples Dental College and Hospital, Kathmandu, Nepal
  • Resina Pradhan, Dr Peoples Dental College and Hospital, Kathmandu, Nepal
  • Manju Bajracharya, Dr Peoples Dental College and Hospital, Kathmandu, Nepal
  • Surendra Maharjan, Dr Peoples Dental College and Hospital, Kathmandu, Nepal
  • Pushkar Manandhar, Dr Peoples Dental College and Hospital, Kathmandu, Nepal

DOI:

https://doi.org/10.3126/ojn.v10i3.35486

Keywords:

Agenesis, Lower anterior crowding, Mandibular third molars

Abstract

Introduction: Crowding in mandibular arch increases with increasing age and etiology of crowding is multifactorial in nature. Role of mandibular third molar in lower anterior crowding remains a topic of controvery over a period of century. The objective of this study was to assess whether there is any correlation between presence of mandibular third molar position and lower anterior crowding.

Materials and Method: On the basis of third molar position one hundred and six sample of pretreatment orthodontic patients aged between 17 to 38 years were divided into erupted, erupting and agenesis group. The study was conducted in Peoples Dental College and Hospital from January 2020 to March 2020 after obtaining ethical approval from the institutional review committee. This cross-sectional study was done on dental casts and orthopantomogram; brass wire was used for measuring arch length and digital vernier caliper for measuring tooth material with modified segmental arch analysis method.

Result: Among 106 samples collected 55 (51.88%) were female and 51(48.11%) were male and the mean age was 21.53 ± 3.91 years, Chi square and ANOVA test was used for Statistical analysis. This study showed no statistically significant differences between third molar position and lower anterior crowding on right (P= 0.68) and left side (P = 0.45). The study also showed that association between the third molar position and lower anterior crowding is more on left side compared to right side.

Conclusion: Mandibular third molars have not statistically significant difference in lower anterior crowding so, extraction of third molars for relieving the anterior crowding is not justifiable

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Author Biographies

Bashu Dev Pant, Dr, Peoples Dental College and Hospital, Kathmandu, Nepal

Department of Orthodontics, Assistant Professor

Anjana Rajbhandari, Dr, Peoples Dental College and Hospital, Kathmandu, Nepal

Department of Orthodontics, Professor

Resina Pradhan, Dr, Peoples Dental College and Hospital, Kathmandu, Nepal

Department of Orthodontics, Assistant Professor

Manju Bajracharya, Dr, Peoples Dental College and Hospital, Kathmandu, Nepal

Department of Orthodontics, Assistant Professor

Surendra Maharjan, Dr, Peoples Dental College and Hospital, Kathmandu, Nepal

Department of Orthodontics, Assistant Professor

Pushkar Manandhar, Dr, Peoples Dental College and Hospital, Kathmandu, Nepal

Department of Orthodontics, Assistant Professor

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Published

2020-12-31

How to Cite

Pant, B. D., Rajbhandari, A., Pradhan, R., Bajracharya, M., Maharjan, S., & Manandhar, P. (2020). Assessment of role of mandibular third molar in lower anterior crowding among orthodontic patients of Kathmandu Nepal. Orthodontic Journal of Nepal, 10(3), 21–26. https://doi.org/10.3126/ojn.v10i3.35486

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Section

Original Articles