The Morelli Micro Screw 9mm is a reduced-body orthodontic expansion screw that reaches a 9 mm opening. It pairs a slim 4.6 mm wide frame with a 7 mm expansion dimension. It is available as a single unit or in packs of 10.
Key Features
Long range, slim frame โ a 9 mm opening and a 7 mm expansion dimension in a body 4.6 mm wide
Compact dimensions โ 13 mm ร 4.6 mm ร 3 mm overall
Anti-reverse mechanism โ the mechanism keeps the screw from turning back on its own once it has been advanced
Secure locking system โ the position reached after each activation is held in place
Acrylic friendly โ the low 3 mm thickness helps keep removable plates thin
Stainless steel build โ made in stainless steel
Two pack sizes โ available as a single unit or as a pack of 10
Technical Specifications
Material: Stainless steel
Opening: 9 mm
Expansion: 7 mm
Body Dimensions: 13 mm ร 4.6 mm ร 3 mm
Pack Size Options: 1 unit ยท 10 units
Purpose: Extended arch expansion in appliances with restricted space for the screw body
Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016
Country of Manufacture: Brazil
Package Includes: 1-unit pack: one (1) expansion screw and one (1) activation key ยท 10-unit pack: ten (10) expansion screws and ten (10) activation keys
Clinical Applications
Extended expansion schedules in space-restricted appliances.
Slim removable plates that still require a long activation range.
Transverse development planned across several months of activation.
Need a long activation range without a bulky body?
A 9 mm rated opening in a 4.6 mm wide frame answers both demands at once.