Dental instrument assemblies and components for use within dental instrument assemblies

A mouth piece of a dental instrument assembly, the mouth piece comprising:

• a body portion having an ejection port configured to engage a dental instrument adapter;
• a core extending from the body portion to a distal end of the mouth piece;
• a first front flap and a second front flap each having inner edges connected via the core;
• a first rear flap and a second rear flap each having inner edges connected via the core;
• wherein the core includes a first side wall extending between the first front flap and the first rear flap and the core includes a second side wall extending between the second front flap and the second rear flap, the core defining a distance between the first and second side walls;
• wherein an outer edge of the first front flap and an outer edge of the second front flap include a respective sidewall having a non-planar bottom;
• and
• wherein the first rear flap and the second rear flap include a substantially planar surface facing the non-planar bottom of the first and second front flaps.

A mouth piece of a dental instrument assembly, the mouth piece comprising:

• a body portion having an ejection port configured to engage a dental instrument adapter;
• a core extending from the body portion to a distal end of the mouth piece;
• a first front flap and a second front flap each having inner edges connected via the core;
• a first rear flap and a second rear flap each having inner edges connected via the core;
• wherein the core includes a first side wall extending between the first front flap and the first rear flap and the core includes a second side wall extending between the second front flap and the second rear flap, the core defining a distance between the first and second side walls;
• wherein a front perimeter around the outer edge of the first front flap and the outer edge of the second front flap is less than a rear perimeter around an outer edge of the first rear flap and an outer edge of the second rear flap;
• and
• wherein the first front flap and the second front flap include a front set of apertures, and wherein the first rear flap and the second rear flap include a rear set of apertures, the front set of apertures offset from the rear set of apertures so as to not overlap each other.

A dental instrument assembly comprising:

• a dental instrument adapter having a vacuum source connection configured to connect to a vacuum source and a dental instrument connector that includes an adapter interlock;
• and
• a mouth piece having a body portion connected to the dental instrument adapter, wherein the body portion includes an exhaust port and a receptacle configured to receive the adapter interlock when the exhaust port is engaged with the dental instrument connection of the dental instrument adapter;
• wherein the mouth piece includes a core, a first front flap, a second front flap, a first rear flap, and a second rear flap, wherein the first front flap and the second front flap each having inner edges connected via the core, and wherein the first rear flap and the second rear flap each having inner edges connected via the core;
• wherein an outer edge of the first front flap and an outer edge of the second front flap include a respective sidewall having a non-planar bottom;
• and
• wherein the first rear flap and the second rear flap include a substantially planar surface facing the non-planar bottom of the first and second front flaps.