COMPARISION OF COMMRCIALLY AVAILABLE ARCHWIRES WITH NORMAL DENTAL ARCH IN A GROUP OF SAUDI POPULATION

Document Type : Original Article

Authors

1 Orthodontic Department, Faculty of Dentistry, Suez Canal University-affiliated to Umm Al-Qurra University

2 Dental student at Umm Al-Qura University, Makkah, Saudi Arabia

3 Dental studentat Umm Al-Qura University, Makkah, Saudi Arabia

4 Dental Student at Umm Al-Qurra University, Makkah, Saudi Arabia

5 Dental Student at Umm Al- Qurra University

Abstract

The dental arch varies among races, population, and individuals. The principal goal of orthodontic treatment is to maintain the stability and aesthetics of the arch. It is crucial to preserve the patient’s original arch form during orthodontic therapy otherwise the probability of relapse will increase.
Objectives: To determine the average dental arch form and size for Saudi adults and compare it with commercially available archwires.
Materials and methods: Dental casts of 126 Orthodontically untreated individuals with normal occlusion were obtained. For each model, the arch form was determined, the intermolar width, inter-canine width, molar depth and canine depth were measured using a digital caliper with 0.001-0.02 mm accuracy. Arch form template(Orthoform TM; 3M) was used and 9 commercially available preformed maxillary and mandibular Ni-Ti arch wires were scanned. Measurements obtained from casts were first compared between genders, then compared with those of preformed ready-made commercially available archwires to determine which archwire has the shape that fits most accurately to the predetermined Saudi measures.
Results and Conclusion: The most common form was ovoid (48.4%) followed by square (30.2%) and tapered (21.4%). No significant difference existed between male and female regarding the arch form. Comparing arch-perimeters, no significant difference existed between both gender in intercanine width &depth as well as intermolar depth only the intermolar width showed significant difference at (P≥0.05). The most compatible archwire to the population’s upper dental arch was Ortho organizer oval arch form II. While Dentaurum, Tensic-ideal arch was the most compatible archwire to the lower dental arch.

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