Kinematics ofmandibular advancement devices(MADs):Why do some MADs move the lower jaw backward duringmouth opening?  

作　　者：Juan A.Cabrera Alex Bataller Sergio Postigo Marcos García 

机构地区：[1]Mechanical Engineering Department,University of Malaga,29071 Malaga,Spain

出　　处：《Bio-Design and Manufacturing》2024年第5期637-650,共14页生物设计与制造（英文）

基　　金：supported by the research contracts 806/31.4830 and 806/31.5511 between the private company Laboratorio Ortoplus S.L.and the University of Malaga.

摘　　要：Mandibular advancement devices(MADs)are widely used treatments for obstructive sleep apnea.MADs function by advancing the lower jaw to open the upper airway.To increase patient comfort,most patients allow the mouth to be opened.However,not all systems maintain the lower jaw in a forward position during mouth opening,which results in the production of a retrusion that favors the collapse of the upper airway.Furthermore,the kinematic behavior of the mechanism formed by the mandible-device assembly depends on jaw morphology.This means that,during mouth opening,some devices cause lower jaw protrusion in some patients,but cause its retraction in others.In this study,we report the behavior of well-known devices currently on themarket.To do so,we developed a kinematic model of the lower jawdevice assembly.Thismodelwas validated for all devices analyzed using a high-resolution camera system.Our results show that some of the devices analyzed here did not produce the correct behavior during patient mouth opening.

关 键 词：Mandibular advancement devices Lower jaw kinematics Sleep apnea 

分 类 号：R318[医药卫生—生物医学工程]