Anthropometric features of the prosthetic bed and masticatory musculature in patients with complete secondary adentia based on ultrasound data
Heading: Stomatology Article type: Original article
Authors: Shkarin V.V., Makedonova Yu.A., larygina E.N., Devyatchenko L.A., Chizhikova T.V., Pavlova-Adamovich A.G.
Organization: Volgograd State Medical University
Objective: to analyze the anthropometric features of the prosthetic bed and masticatory muscles in patients with complete secondary adentia for planning orthopedic treatment. Material and methods. 63 people participated in the examination, who, according to the inclusion/exclusion criteria, were divided into two groups: the first (n=30) — control, the second (n=33) — patients with complete secondary adentia. Ultrasound examination was used to study the structural features of the chewing muscles and prosthetic bed, and the results were compared with a group of healthy individuals. Results. In patients with complete secondary adentia, atrophy of the prosthetic bed mucosa is noted, the average blood flow rate was 9.7±0.8%, which is 2.4 times less than in the control group of 23.4±1.9% (p<0,001). A statistical difference was obtained in determining the area of the chewing muscles at rest and tension — 69.8±2.8%, which is 15.7% less than in the group of healthy people — 80.8±1.8% (p=0.03). The thickness of the prosthetic bed varied from 0.3 mm to 0.5 mm, depending on the location, so the thickness of the prosthetic bed in the anterior part was 0.363±0.01 mm, in the lateral — 0.354±0.01 mm. A2.2-fold decrease in this parameter relative to the control group indicated atrophy of the prosthetic bed mucosa (p=0.03). Conclusion. In patients with complete secondary adentia, there is a decrease in the thickness of the masticatory muscles and prosthetic bed due to the development of atrophic processes of muscle tissue against the background of a decrease in the rate of local blood flow against the background of stagnation.
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