A occluder.On top of the wearer,Lower jaw teeth engaged,The occluder comprises an upper and a lower set of teeth.And a biting body is formed between the upper and lower teeth sets.It is used by the wearer for occlusion.And the front edge of the upper and lower braces is connected with a protective body through a connector.When the wearer engages,The protector is located on the outer edge of the lips to achieve the protective effect.An air vent is formed between the tooth socket and the protective body.The vent is provided with a movable piece which can be turned outward.So that when the wearer snaps,To breathe through the nose,Breath through your mouth.Effectively improve the vital capacity of the wearer.一種咬合器，係提供配戴者之上、下顎牙齒咬合，該咬合器包含形成一體之上牙套與下牙套，且該上牙套與下牙套間形成有一咬合體，藉此供配戴者咬合使用，而上牙套與下牙套前緣則再透過一連接體連接一保護體，當配戴者咬合後，該保護體則位於嘴唇外緣達到保護效果，而該牙套與保護體間則形成有一吐氣口，且吐氣口上則設有一可向外翻啟之活動片；藉此當配戴者咬合時，得以透過鼻子吸氣、嘴巴吐氣之方式進行呼吸，有效提高配戴者之肺活量。
