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.
Key Features
Long range, slim frame — a 9 mm opening and a 7 mm expansion dimension in a body 4.6 mm wide
Compact dimensions — 13 mm × 4.6 mm × 3 mm overall
Anti-reverse mechanism — the mechanism keeps the screw from turning back on its own once it has been advanced
Secure locking system — the position reached after each activation is held in place
Acrylic friendly — the low 3 mm thickness helps keep removable plates thin
Stainless steel build — made in stainless steel
Technical Specifications
Material: Stainless steel
Opening: 9 mm
Expansion: 7 mm
Body Dimensions: 13 mm × 4.6 mm × 3 mm
Quantity: 1 piece
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 expansion screw
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.
