RELIABILITY OF ORTHOPANTOMOGRAM IN COMPARISON TO LATERAL CEPHALOGRAM FOR LINEAR MANDIBULAR MEASUREMENTS
Keywords:Orthopantomogram, OPG, Lateral cephalogram, Linear mandibular measurements, mandibular asymmetry
AbstractBackground: Mandibular asymmetries are commonly seen as asymmetric traits among orthodontic and orthognathic patients which require bilateral mandibular assessment for diagnosis and treatment. An orthopantomogram can be used to measure and compare right and left sides of mandible. The objective of this study was to investigate the reliability of left and right sides of orthopantomogram for determining the linear mandibular measurements and to check whether these values are identical with the values of linear mandibular measurements determined from lateral cephalogram. Methods: Orthopantomogram and lateral cephalogram were taken from 118 patients of age group 12–35 years from Orthodontic department, Liaquat College of Medicine & Dentistry and Darul Sehat Hospital, Karachi, Pakistan. Linear mandibular measurements were detected and compared between orthopantomograms and lateral cephalograms. Right and the left sides of orthopantomograms were compared for all of the linear mandibular parameters by using paired t-test. Independent sample t-test was performed for the comparison between orthopantomogram and lateral cephalogram using SPSS version 26.0. Results: Statistically significant differences were observed when orthopantomograms were compared with lateral cephalograms for mandibular body length (p=0.000) and total mandibular length (p=0.000). No statistically significant difference was found between orthopantomograms and lateral cephalograms for ramus height (p=0.226, p=0.177). Neither any significant difference was observed between right and left sides of an orthopantomogram. Conclusion: An orthopantomogram can be used to evaluate vertical mandibular measurements as reliably as a lateral cephalogram. However, it is required for clinicians to be vigilant when determining horizontal mandibular measurements from orthopantomograms as they are unpredictable.
Pattanaik S. Evolution of Cephalometric Analysis of Orthodontic Diagnosis. Indian J Med Forensic Med Toxicol 2019;13(4):1830–4.
Kumar SS, Thailavathy V, Srinivasan D, Loganathan D, Yamini J. Comparison of Orthopantomogram and Lateral Cephalogram for Mandibular Measurements. J Pharm Bioallied Sci 2017;9(Suppl 1):S92–5.
Ramirez-Yañez GO, Stewart A, Franken E, Campos K. Prevalence of mandibular asymmetries in growing patients. Eur J Orthod 2011;33(3):236–42.
Nik TH, Gorjizadeh F. Differential Diagnosis and Treatment Approaches of Hemifacial Microsomia: A Review. Iran J Orthod 2015;10(1):e4994.
Damstra J, Fourie Z, Ren Y. Evaluation and comparison of postero-anterior cephalograms and cone-beam computed tomography images for the detection of mandibular asymmetry. Eur J Orthod 2013;35(1):45–50.
Signorelli L, Patcas R, Peltomäki T, Schätzle M. Radiation dose of cone-beam computed tomography compared to conventional radiographs in orthodontics. J Orofac Orthop 2016;77(1):9–15.
Hirpara N, Jain S, Hirpara V, Punyani P. Comparative assessment of vertical facial asymmetry using posteroanterior cephalogram and orthopantomogram. J Biomed Sci 2017;6(1):1–7.
Larheim T, Svanaes D. Reproducibility of rotational panoramic radiography: mandibular linear dimensions and angles. Am J Orthod Dentofacial Orthop 1986;90(1):45–51.
Ongkosuwito EM, Dieleman MM, Kuijpers-Jagtman AM, Mulder PG, van Neck JW. Linear mandibular measurements: comparison between orthopantomograms and lateral cephalograms. Cleft Palate Craniofac J 2009;46(2):147–53.
Baig MN. Reliability of panoramic radiography in assessing gonial angle compared to lateral cephalogram. Pak Oral Dent J 2018;38(3):320–3.
Memon S. Comparison Between Three Methods of Gonial Angle Formation on Lateral Cephalogram and Orthopantomogram. J Pak Dent Assoc 2018;27(2):58.
Radhakrishnan PD, Sapna Varma NK, Ajith VV. Dilemma of gonial angle measurement: Panoramic radiograph or lateral cephalogram. Imaging Sci Dent 2017;47(2):93–7.
Araki M, Kiyosaki T, Sato M, Kohinata K, Matsumoto K, Honda K. Comparative analysis of the gonial angle on lateral cephalometric radiographs and panoramic radiographs. J Oral Sci 2015;57(4):373–8.
Fattahi H, Babouee A. Evaluation of the precision of panoramic radiography in dimensional measurements and mandibular steepness in relation to lateral cephalomerty. J Mashhad Dent Sch 2007;31(3):223–30.
Juma A, Tattan M, Duarte C. The alternative use of a nonconventional orthopantomograms analysis technique for facial skeletal assessment. Int J Oral Maxillofac Surg 2018;3(2):26.
Tronje G, Welander U, McDavid WD, Morris CR. Image Distortion in Rotational Panoramic Radiography:VI. Distortion Effects in Sliding Systems. Acta Radiol Diagn (Stockh) 1982;23(2):153–60.
Kurt G, Uysal T, Sisman Y, Ramoglu SI. Mandibular asymmetry in Class II subdivision malocclusion. Angle Orthod 2008;78(1):32–7.
Akcam MO, Altiok T, Ozdiler E. Panoramic radiographs: a tool for investigating skeletal pattern. Am J Orthod Dentofacial Orthop 2003;123(2):175–81.
Kambylafkas P, Kyrkanides S, Tallents RH. Mandibular asymmetry in adult patients with unilateral degenerative joint disease. Angle Orthod 2005;75(3):305–10.
Habets L, Bezuur J, Van Ooij C, Hansson T. The orthopantomogram, an aid in diagnosis of temporomandibular joint problems. I. The factor of vertical magnification. J Oral Rehabil 1987;14(5):475–80.
Habets L, Bezuur J, Naeiji M, Hansson T. The Orthopantomogram®, an aid in diagnosis of temporomandibular joint problems. II. The vertical symmetry. J Oral Rehabil 1988;15(5):465–71.
Nohadani N, Ruf S. Assessment of vertical facial and dentoalveolar changes using panoramic radiography. Eur J Orthod 2008;30(3):262–8.
Mawani FA. The anatomic accuracy of lateral temporomandibular joint images from axially corrected multidirectional tomography and three panoramic radiography units: A comparative dry skull study. 2004.
Abdinian M, Soheilipour F, Nazeri R, Ghorbanizadeh S. Investigation of the magnification of digital panoramic radiographs in different regions of the jaws. SRM J Res Dent Sci 2016;7(1):10.
Arora H, Jain V, Pai KM, Kamboj R. Precision of dimensional measurements of mandible in different positions on orthopantomogram. Indian J Dent Res 2013;24(1):48.
Gomez-Roman G, Lukas D, Beniashvili R, Schulte W. Area-dependent enlargement ratios of panoramic tomography on orthograde patient positioning and its significance for implant dentistry. Int J Oral Maxillofac Implants 1999;14(2):248–57.
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