Zyris ISOVAC Instructions For Use Manual page 9

Selecting the Mouthpiece
To select the correct Mouthpiece size, measure
the patient' s interincisal opening. If between
sizes, you may select the smaller size.
Mouthpiece Size
Pediatric (PED)
Extra Small (XSM)
Small (SML)
Medium (MED)
Medium Deep Vestibule (MDV)
Large (LRG)
Table 3. Mouthpiece Sizes
The Finger Method
The finger method may also be used to
select the appropriate Mouthpiece size
(Figure 5).
Attaching the Mouthpiece
Slide the Mouthpiece onto the Control
Head until the two locking barbs engage.
Water or mouthpiece lubricant may be
used to lubricate the inside surface of the
Mouthpiece sleeve to ease attachment.
Approx. Interincisal
Opening
< 30 mm
< 30 mm
30 mm
30-45 mm
30-45 mm
> 45 mm
Figure 5. The Finger Method
Cheek Shield
Flexible Isthmus
Tongue Retractor
Locking Barb
Openings
Mouthpiece Sleeve
Figure 4. Mouthpiece
Pediatric / Extra Small
One Finger (< 30 mm)
Small
Two Fingers (30 mm)
Medium / Medium DV
Three Fingers (30-45 mm)
Large
Four Fingers (> 45 mm)
Vacuum
Channels
Integrated
Bite Block
EN
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