Original Article
Year : 2021 | Volume : 12 | Issue : 2 | Page : 58-63
A novel diagnostic tool for sagittal jaw relationship: The P angle
Pavankumar Ramsharan Singh, Anand S Ambekar, Suresh K Kangane
Department of Orthodontics and Dentofacial Orthopaedics, Maharashtra Institute of Dental Sciences and Research Dental College, Latur, Maharashtra, India
Correspondence Address:
Dr. Pavankumar Ramsharan Singh
7, PG Section, Department of Orthodontics, Maharashtra Institute of Dental Sciences and Research Dental College, Latur - 413 512, Maharashtra, India.
Abstract:
Aim:
To introduce a new cephalometric measurement called P-angle using three skeletal landmarks&#s8212;point S, point Gn, and point A, to evaluate the sagittal relationship between the maxilla and mandible.
Materials and Methods:
A total of 130 pretreatment lateral cephalograms were selected and segregated into skeletal Class I, II, and III groups based on W-angle and ANB angle. It included 50 Class I (25 males and 25 females), 50 Class II (25 males and 25 females), and 30 Class III (13 males and 17 females) skeletal pattern patients. The P angle was formed between the line from point A perpendicular to the S-Gn line and line A-Gn. The P-angle and W-angle were measured in each patient. Data was entered in MS Excel sheet and analyzed by using SPSS software 24.0 version IBM USA. The mean and standard deviation of P-angle and W-angle was calculated and were compared using an unpaired t-test.
Results:
The unpaired t-test results showed that there is no significant difference between P-angle and W-angle in Class I, Class II, and Class III skeletal pattern.
Conclusion:
P-angle can be used as an adjunct for W-angle during pretreatment cephalometric tracing.
Source of Support:
None
Conflict of Interest:
None
DOI: 10.4103/ijor.ijor_6_21
How to cite this article: Singh PR, Ambekar AS, Kangane SK. A novel diagnostic tool for sagittal jaw relationship: The P angle. Int J Orthod Rehabil 2021;12:58-63.
