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ORIGINAL ARTICLE
Year : 2016  |  Volume : 6  |  Issue : 9  |  Page : 219-225

Correlating the clinical assessment of impacted mandibular third molars with panoramic radiograph and intraoral periapical radiograph


1 Department of Dental Surgery, Sri Venkateshwara Institute of Medical Sciences, Tirupathi, AndhraPradesh, India
2 Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Prince Sattam Abdul Aziz University, Kingdom of Saudi Arabia
3 Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Abdul Aziz University, Kingdom of Saudi Arabia
4 Department of Oral and Maxillofacial Surgery, Daswani Dental College, Kota, Rajasthan, India
5 Department of Oral and Maxillofacial Surgery, C.K.S. Teja Institrute of Dental Sciences, Tirupathi, AndhraPradesh, India

Correspondence Address:
P Vani Priya
Department of Dental Surgery, Sri Venkateshwara Institute of Medical Sciences, Tirupathi, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2231-0762.197198

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Aims And Objectives: This study was conducted to compare the clinical assessment of impacted third molars of mandible with panaromic radiograph (OPG) and intraoral periapical radiograph (IOPA) and to assess the efficacy of IOPA and. Moreover, we corroborated the OPG and IOPA findings of impacted mandiblar third molar root apex to inferior alveolar canal. Materials and Methods: A total of 200 patients with pericoronitis were examined who were indicated for surgical extraction, among which 50 patients were selected for the study. All the patients underwent a radiographic survey with a digital OPG and IOPA of impacted mandibular third molars, along with clinical survey for anatomic relationship, type of impaction, space available, position in relation to second molar, number of roots, root curvature, and proximity of nerve canal. The data was subjected to statistical analysis. The Statistical Package for Social Sciences version 4.0.1 software was used for analyzing the collected data. Results: The study revealed that IOPA was more accurate in determining a majority of the factors affecting the third molar surgery, including relationship of the external oblique ridge (IOPA vs OPG = 96%:90%), anteroposterior relation with ramus (IOPA vs OPG = 70%:66%), vertical depth of impaction (IOPA vs OPG = 72%:68%), number of roots (P = 0.013), morphology of roots (IOPA vs OPG = 96%:90%); however, OPG was found to be accurate in evaluating the type of impaction (IOPA vs OPG = 88%:94%), canal relation, along with root of impacted molar (IOPA vs OPG = 74%:86%). Conclusion: To conclude, although IOPA has a marginal angle over OPG in assessing various parameters, only the number of roots have a greater accuracy (P < 0.0013) in IOPA than with OPG. However, the OPG is the better choice to be considered when the patient is associated with trismus.


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