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Chulalongkorn University Dental Journal
Expansion screw; mandibular advancement; maximum tensile resistance; UMA splint
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Full-Text Articles in Medicine and Health Sciences
Maximum Tensile Resistance Of Non-Adjusted And Adjusted Expansion Screws In The Locking Part Of Unassisted Mandibular Advancement Splint, Uthai Uma, Supranee Vichiennet, Phanomporn Vanichanon
Maximum Tensile Resistance Of Non-Adjusted And Adjusted Expansion Screws In The Locking Part Of Unassisted Mandibular Advancement Splint, Uthai Uma, Supranee Vichiennet, Phanomporn Vanichanon
Chulalongkorn University Dental Journal
Objective: To test the vertical and horizontal tensile forces of the locking part of a novel Unassisted Mandibular Advancement (UMA) Splint. Materials and methods: Twenty samples, each comprising a lower piece and an upper piece with an expansion screw, were prepared. The samples were divided into 4 groups (n=5): 1) non-expanded screw group for vertical force test (NEVT), 2) 5-mm-expanded screw group for vertical force test (5EVT), 3) non-expanded screw group for horizontal force test (NEHT), and 4) 5-mm-expanded screw group for horizontal force test (5EHT). NEVT and 5EVT groups received a vertical tensile force whereas NEHT and 5EHT groups …