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A CROSS-SECTIONAL RESEARCH TO ASSESS THE ASSOCIATION VERTICAL FACIAL MORPHOLOGY AND INTER CANINE WIDTH

Dr. Sara Mariam, Dr Raheela Sharif, Dr Hira Noor

Background: General perception prevails about the vital association between vertical facial morphology and arch width. The form and size of dental arches can pose serious orthodontic diagnosis implications for planning of treatment and orthodontic diagnosis. Objective: The aim of this research was to determine the correlation between vertical facial morphology and inter canine width among patients who were seeking orthodontic therapy. Patients and Methods: We conducted this cross-sectional study at Jinnah Hospital, Lahore from February to November 2018 on a total of one hundred patients. We obtained one hundred dental casts and lateral cephalometric radiographs and traced them as well. SN-MP angle was measured on lateral cephalography. Inter canine width was measured on dental casts. The correlation between SN-MP angle and Inter canine width shows significant P-Value of < 0.05. Results: The patients were selected in the age bracket of (12 – 38) years with an average age of (15.62 ± 4.97) years. Among one hundred patients there were 34 males and 66 females. The overall population presented a predominance of females over males. Mean SN-MP angle was (33.33 ± 5.28) with minimum and maximum angle of respectively 24 and 46 degrees. Low SN-MP angle was reported among 18 patients (Under 27 degrees), normal SN-MP angle was reported among 54 patients (28 – 36) degrees and high SN-MP angle was reported among 28 patients. Significant P-Value for SN-MP angle was (< 0.05). Inter canine width for lower SN-MP angle was (35 ± 2.47) mm, normal SN-MP angle was (33.73 ± 2.15) mm and higher SN-MP angle was (32.77 ± 3.21) mm. Mean inter ca¬nine width reduces with an increase in the SN-MP angle. Similarly, mean inter-canine width of mandi¬ble reduces with an increase in the SN-MP angle with mean values for low as (29.31 ± 3.54) mm, normal (26.97 ± 2.68) mm as and high as (25.39 ± 2.44) mm. Conclusion: The outcomes conclude that significant statistical association between vertical facial morphology and inter canine width exists. Keywords: Vertical Facial Morphology, Arch Width, Maxilla, Mandible and Inter-Canine Width.

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