University of Khartoum

The Relation between The Dental Arch Form (DAF) and The Facial Form (FF) among Dental Student in Khartoum University

The Relation between The Dental Arch Form (DAF) and The Facial Form (FF) among Dental Student in Khartoum University

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Title: The Relation between The Dental Arch Form (DAF) and The Facial Form (FF) among Dental Student in Khartoum University
Author: AtaElfadil, Nahla Hassan Abdin
Abstract: Background: Esthetics is one of the major concerns in patients seeking prosthodontic treatment. An optimal esthetics is assumed to be achieved only if the face, arch, and tooth forms are in harmony. The teeth are arranged in an arch that’s based on the jaw which is a part of the facial structure. The aim of this study was to determine the correlation between the facial form and arch form, which could be used as a guide in teeth selection for Sudanese population. Materials and methods: The sample was selected from Khartoum University, Faculty of Dentistry. A total of 100 Sudanese Dental students randomly selected with an age range between 18 and 25 years and fit the criteria of this research. The facial height from Nasion to Gnathion (N-Gn) was measured directly using digital sliding caliper. The bizygomatic width from the right to the left zygoins (zy) was measured directly using bow and digital sliding calipers. Then the facial index was calculated. According to facial index value and on the basis of Banister’s classification,facial form was assessed and categorized into Euryprosophic, Mesoprosophic and Leptoprosophic. Participants’ maxillary alginate impressions were taken to obtain 100 stone casts. By using graph paper, the inter canine width and the canine vertical distance were measured.The dental arch form was determined by applying these measurements on a precise mathematical formula. Dental arch form was classified into Tapering arch, Square arch and ovoid arch. Results: The Contingency coefficient value for the association between face form and arch form was 0.189 with P = 0. 447 (P > 0.05), which means that there was no significant association between arch and face forms in this study sample. Conclusion: There was no significant association between dental arch form and facial form.
URI: http://khartoumspace.uofk.edu/123456789/27164


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