MSE

MSE

INVENTED BY Prof. WON MOON

INVENTED BY Prof. WON MOON
UCLA School of Dentistry, Certificate in Orthodontics, 1991
UCLA School of Dentistry, MS in Oral Biology, 1991
Harvard School of Dental Medicine, D.M.D., 1989
University of California, Irvine, BS in Mathematics, 1984

MSE Lab Works

1. MSE Position: Posterior Palatal Vault Between 1st and  2nd Molars in Order to Direct the Expansion Force Against the Buttress Bones.
2. MSE Should Be Positioned Slightly Anterior to the Soft Palate

Bi-Cortical Engagement

Benefits & Contraindications

Benefits

Vertical Control in High Angle Cases
● Significant Increase in Upper Airway Volume: Nasal Obstruction, Sleep Apnea
● Mostly Skeletal Expansion: Less Bone Bending and Dental Tipping Compared to RPE and SARPE
● Less Invasive than SARPE and Orthognathic Surgery
● FM and MSE for Class III Correction
● MSE Causes Expansion of the Surrounding Structures
● MSE Can Be Used for Mature Patients

Contraindications

● Extremely narrow palatal vault
● Patients with previous mid-facial trauma
● Extremely thick/dense palatal bone and/or dense buttress bone
● Extremely thin palate with low bone density

Activation Protocol

4 Turns = 0.8mm(1 revolution)
Ex) MSE-8 means its expansion size is 8mm = 40 turns

MSE Ⅰ

Early teens        :3 turns / week(0.60mm /week)
Late teens         :1 turns / day(0.20mm /day)
Early to Mid-20’s: 2~3 turns / day(0.40~0.60mm/day)
Older                :Minimum 2~3 turns /day, assistance PRN
After Diastema    : 1 turns / day(0.20mm / Day)
6 Turns = 0.8mm(1 revolution)
Ex) MSEⅡ-12 means its expansion size is 12mm = 90 turns

MSE Ⅱ

Early teens        :6 turns / week(0.80mm /week)
Late teens         :2 turns / day(0.27mm /day)
Early to Mid-20’s: 4~6 turns / day(0.53~0.80mm/day)
Older                :Minimum 4~6 turns /day
After Diastema    : 2 turns / day(0.27mm / Day)

History of MSE

MSE ver.1

MSE ver.2

Specification

MSE mini implant

Clinical cases

<CASE 1: 19Y Male >

<CASE 2: adult>

<CASE 3: young adult>