COMPARATIVE ANALYSIS OF ANGULATION PATTERNS AND ASSOCIATED PATHOLOGIES OF BILATERALLY IMPACTED MANDIBULAR THIRD MOLARS USING CONE BEAM COMPUTED TOMOGRAPHY: A RETROSPECTIVE STUDY

Authors

  • Zainab Akbar Department of Oral Medicine, Rehman College of Dentistry, Peshawar, Pakistan.
  • Huma Saeed Department of Operative Dentistry, Rehman College of Dentistry, Peshawar, Pakistan.
  • Toheed Ur Rehman Department of Operative Dentistry, Rehman College of Dentistry, Peshawar, Pakistan.
  • Saqiba Yaseen Department of Operative Dentistry, Maroof International Hospital, Islamabad, Pakistan.
  • Sobia Salam Department of Oral Biology, Rehman College of Dentistry, Peshawar, Pakistan.
  • Zouha Sami House Officer, Women Dental College, Abbottabad, Pakistan.

DOI:

https://doi.org/10.33279/jkcd.v16i02.1017

Keywords:

Cone Beam Computerized Tomography; impacted mandibular third molars; impaction angulation; mesioangular impaction; vertical impaction; Winter's classification

Abstract

Objectives: To compare the angulation patterns of bilaterally impacted mandibular third molars using cone beam computed tomography (CBCT) and to determine the frequency of associated pathological conditions.

Materials and Methods: Archived CBCT scans of 100 patients aged ≥17 years with bilaterally impacted mandibular third molars were reviewed retrospectively. Patients with previous mandibular surgery, associated pathology, single impaction, edentulism, or incomplete records were excluded. Impaction angulation was classified according to Winter's classification. Data were analyzed using IBM SPSS Statistics version 26.0. Frequencies and percentages were calculated, and bilateral differences were assessed using the Chi-square test with a significance level of p<0.05.

Results: Vertical impaction was the most common angulation on both the left (49.0%) and right (45.0%) sides, followed by mesioangular impaction (36.0% and 31.0%, respectively). Horizontal impaction was observed in 14.0% of left-sided and 22.0% of right-sided mandibular third molars. No statistically significant bilateral difference in impaction angulation patterns was observed (p>0.05).

Conclusion: Bilaterally impacted mandibular third molars demonstrated broadly symmetrical angulation patterns, with vertical impaction being the predominant type on both sides. CBCT provides valuable three-dimensional assessment for diagnosis and treatment planning of impacted mandibular third molars.

References

De Vos W, De Paepe L, Sanderink G, et al. The use of panoramic radiography in diagnosing third molar impaction. Int J Oral Maxillofac Surg. 2005;34(3):324-31.

Tyndall DA, Rathore R, Kuo J, et al. Cone beam computed tomography in dental practice. J Am Dent Assoc. 2012;143(3) :249-57.

Alqerban A, Jacobs R, Maes F, et al. Comparison of cone-beam computed tomography and panoramic radiography for the assessment of maxillofacial trauma. Dentomaxillofac Radiol. 2011;40(1):7-13.

Ariji Y, Kimura Y, Takagi M, et al. Nerve injury caused by third molar removal: a review. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003;95(5):507-13.

Lima RS, Silva RMA, Goulart NC. Gender differences in the prevalence of impacted third molars: a multivariate analysis. Am J Orthod Dentofacial Orthop. 2022;161(1):e25-e32.

Rosenberg A, Bosch M. Third molar management: a contemporary review of trends and outcomes. Eur J Oral Sci. 2023;131(1):55-62.

Sharma A, Jain S, Sharma R. Prevalence of mandibular vertical impaction in a tertiary care dental institution: a clinical study. J Dent Res Rev. 2021;8(1):12-17.

Jolly S, Singh P, Bansal A. Trends in the surgical management of impacted teeth: a retrospective study. Indian J Oral Health Res. 2022;8(2):45-50.

Gupta S, Kumari R, Ghosh S. Factors influencing vertical impaction of mandibular third molars: a cross-sectional study. Clin Oral Investig. 2023;27(3):1957-63.

Zafar M, Anwar K, Shah A. The role of arch space in the eruption of third molars: a clinical insight. J Clin Exp Dent. 2022;14(5):e431-e436.

Yadav A, Gupta S, Singh K. Incidence of different types of mandibular third molar impaction: a retrospective study. Indian J Oral Sci. 2021;12(3):179-83.

Sharma R, Jain S, Bansal A. Patterns of mandibular third molar impaction in a tertiary care hospital: a descriptive study. J Maxillofac Oral Surg. 2022;21(4):685-90.

Khan M, Ali I, Ahmad M. Prevalence and management of horizontal impactions: a 5-year retrospective study. Pak Oral Dent J. 2023;43(1):1-6.

Ali A, Raza M. Genetic and environmental factors influencing third molar angulation: a cross-sectional study. J Dent Res Rev. 2022;9(1):15-20.

Saeed N, Murtaza G, Iqbal M. Postoperative complications of impacted third molar extraction: a comparative study. J Pak Med Assoc. 2022;72(10):2134-39.

Alvi N, Ahmed B, Sadiq MF. Factors affecting the incidence of pericoronitis related to impacted third molars. BMC Oral Health. 2021;21(1):122.

Yang CC, Wang DY, Lai JY. Breaking the cycle of pericoronitis: the role of surgical intervention for impacted third molars. J Dent Res. 2021;100(5):404-11.

Liu Y, Wang Z, Zhang Y. Clinical evaluation of third molar eruption patterns and associated pericoronitis: a retrospective cohort study. Int J Oral Maxillofac Surg. 2022;51(10):1221-27.

Sundaram R, Froum SJ, Brian E. The caries status of impacted third molars: a cross-sectional study. J Clin Dent. 2023;34(1):27-31.

Watanabe Y, Matsuda K. The relationship between impacted teeth and the development of odontogenic cysts: a retrospective analysis. Maxillofac Surg J. 2022;10(1):12-18.

Akkus A, Kivanc G, Demirtaş EC. Impact of eruptive force on root resorption of adjacent teeth during third molar extraction: a clinical study. Oral Health Prev Dent. 2023;21(2):113-20.

Alqahtani AA, Alqahtani MA, Alzahrani MA. Pattern of mandibular third molar impaction and its relation to age and gender: a retrospective study. J Oral Maxillofac Surg. 2021;79(4):763-68. doi:10.1016/j.joms.2020.10.015.

Kumar R, Mittal S, Yadav S. Bilateral symmetry in mandibular third molar impaction patterns: a radiographic analysis. Int J Oral Maxillofac Surg. 2022;51(2):213-18. doi:10.1016/j.ijom.2021.09.012.

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Published

2026-06-30

How to Cite

Akbar, Z. ., Saeed, H. ., Rehman, T. U., Yaseen, S. ., Salam, S. ., & Sami, Z. . (2026). COMPARATIVE ANALYSIS OF ANGULATION PATTERNS AND ASSOCIATED PATHOLOGIES OF BILATERALLY IMPACTED MANDIBULAR THIRD MOLARS USING CONE BEAM COMPUTED TOMOGRAPHY: A RETROSPECTIVE STUDY. JOURNAL OF KHYBER COLLEGE OF DENTISTRY, 16(03), 26–30. https://doi.org/10.33279/jkcd.v16i02.1017