The Morelli Standard Screw For Upper 7mm is an orthodontic expansion screw built on the manufacturer's standard body and rated for a 7 mm opening. It is made for fixed or removable appliances used to expand or disjunct the dental arches.
Key Features
Standard body — a full-size frame measuring 10 mm across and 3.5 mm thick
7 mm opening — the manufacturer rates this model at a 7 mm opening, with a 5 mm expansion dimension
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
Fixed or removable use — the body can be soldered into a rigid framework or embedded in an acrylic plate
Stainless steel build — supplied in stainless steel for repeated in-mouth activation
Technical Specifications
Material: Stainless steel
Opening: 7 mm
Expansion: 5 mm
Body Width: 10 mm
Body Thickness: 3.5 mm
Quantity: 1 piece
Purpose: Expansion and disjunction of the dental arches in fixed or removable appliances
Certifications: FDA Approved, CE Approved, ISO 9001:2015, ISO 13485:2016
Country of Manufacture: Brazil
Package Includes: 1 expansion screw
Clinical Applications
Transverse arch expansion in fixed orthodontic frameworks.
Arch disjunction delivered through removable acrylic plates.
Laboratory appliance fabrication where the screw is set into the appliance before delivery.
Planning an expansion that stays within a 7 mm range?
This model pairs a 7 mm rated opening with a body sized for conventional appliance work.
