First of all, space 1~2 mm/one to two milli metre apart from mid palatal soft tissue, and install the Kee’s bone expander stick to the mid palate maximally.

※ In case the space is larger, it is easy to fail since the fixation screw would be bended or sloped.

※ Supporting arm functions as a guide to insert the screw accurately, so it does not matter to skeletal expansion, even if the supporting arm moves a little.

1-1. To fix Kee’s bone expander, insert the second and third Bone screw in a diagonal direction about 2/3. / 2/3 diagonally.
1-2. After pre-fixing bone screws to fix for no.2 and 3, almost perpendicularly insert each screw in order.
※ When inserting the screw,  bury the screw in the bone enough. (To minimize irritation for patients and expand easily)
1-3. Use 9mm surgical bone screw on the anterior side, and use 7 mm surgical bone screw on the posterior side.
1-4. On the expander no.1 and 2, insert the expander for/aim at the space between teeth no.1 and 2. Insert the expander no.3 and 4 near to the mid line of palatal.
1-5. When inserting bone screw, you had better use a hand driver (by hand) rather than instruments like engine etc.
※ If the fixation screw does not turn any more, discontinue inserting the screw to avoid odontoclasis/fracture.
Insert the screw by hand, or it would be difficult to recognize the above situation by instruments like engine.

3-1. Decide/Set/Order the number of using pin upon consideration of patient’s arch form and bone density.
Turn the pin once a day in standard.
※ Four times Turn = One round (One turn -> 0.2mm movement)
3-2. Wait for the pin in case the pin does not be turned initially.
If diastema does not happen due to ankylosis after 2~3weeks, wait about 1~2 weeks more.
※ Take enough time to expand successfully.

Application : children > adults / No impression / Rapid setting / Bonding simultaneous

※ Patients with RPE need to visit hospital about 4 times, but Kee’s bone expander can be installed within the day.
※ After adapting Kee’s bone expander for infants/children, fix with wax on the part of body base plate, and insert screw.
※ After finishing installation/installation, it is fine to turn the pin directly.
※ RPE requires 6 months totally, but Kee’s bone expander for infants/children is completed for 4 months.