EVALUATION OF PATTERNS OF IMPACTED THIRD MOLARS AND THEIR ASSOCIATION WITH VITAL STRUCTURES BY RADIOGRAPHIC EXAMINATION

  • Novaira Waseem Nishtar Institute of Dentistry, Multan Pakistan
  • Muhammad Adil Asim Rawal Institute of Health Sciences, Islamabad Pakistan
  • Ayesha Maqsood Rawal Institute of Health Sciences, Islamabad Pakistan
  • Muhammad Wajahat Ghafoor Foundation University College of Dentistry, Islamabad, Pakistan
  • Noor-Ul-Ain Mirza Rawal Institute of Health Sciences, Islamabad Pakistan
  • Muhammad Omer Khalid Rawal Institute of Health Sciences, Islamabad Pakistan
Keywords: Mandible, Maxilla, Impacted tooth, Maxillary sinus, Third molar

Abstract

Objective: To assess the patterns of impacted 3rd molars and their proximity with adjacent vital structures.

Study Design: Comparative cross-sectional study.

Place and Duration of Study: Oral & maxillofacial department of Rawalpindi Dental Hospital, from Oct 2016 to
Feb 2018.

Methodology: Patient sample size was 956. Orthopantomograms (OPGs) were assessed to determine the presence, patterns of impacted third molars and their relation to maxillary sinus and inferior alveolar canal (IAC) in maxilla and mandible respectively.

Results: Out of 956 Orthopantomograms with 3499 3rd molars examined, 808 (23.09%) were impacted. Frequency of impaction was much higher in mandible than maxilla. Out of 527 impacted mandibular 3rd molars 238 (45.16%) were mesio-angular, 370 (70.21%) had class 1 relation to mandibular ramus & 266 (50.47%) had level B depth, while among 281 impacted maxillary third molars 134 (47.69%) had vertical angulation and 162 (57.65%) had level B depth. Two hundred and eighty four (53.89%) impacted mandibular 3rd molars showed relationship with the inferior alveolar canal, out of which 187 (35.48%) impacted mandibular 3rd molars showed interruption of white line as the most common radiographic finding.

Conclusion: Frequency of impacted third molars was more common in mandible and among females whereas
there is significant difference in patterns of impaction among mandible and maxilla. While most impacted teeth
have approximation with IAC and maxillary sinus.

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Author Biographies

Novaira Waseem, Nishtar Institute of Dentistry, Multan Pakistan

Resident Department of Orthodontics

Muhammad Adil Asim, Rawal Institute of Health Sciences, Islamabad Pakistan

Assistant Professor, Department of Oral & Maxillofacial Surgery

Ayesha Maqsood, Rawal Institute of Health Sciences, Islamabad Pakistan

Associate Professor, Department of Oral & Maxillofacial Surgery

Published
2021-02-25
How to Cite
Waseem, N., Asim, M. A., Maqsood, A., Ghafoor, M., Mirza, N.-U.-A., & Khalid, M. (2021). EVALUATION OF PATTERNS OF IMPACTED THIRD MOLARS AND THEIR ASSOCIATION WITH VITAL STRUCTURES BY RADIOGRAPHIC EXAMINATION. PAFMJ, 71(1), 255-60. https://doi.org/10.51253/pafmj.v71i1.3315
Section
Original Articles