PETG Retainer Material

What is PETG retainer material?

PETG in orthodontic appliances
Use	Purpose
Retainer	Hold teeth in their straightened position^[1][2]
Clear aligner	Form part of an appliance used to reposition teeth^[2]

Evidence topics
Topic	Finding
Thickness	Studies tested 0.6 mm and 0.9 mm materials^[2]
Cleaning	Tested cleansers did not increase fracture risk in PETG^[2][3][4][5]

PETG and TPU mechanical properties influence clinical performance. Research has tested tensile behaviour at 0.6 mm and 0.9 mm thicknesses.

^[2]

PETG is used in clear orthodontic appliances. Retainers fit over or behind teeth to help prevent movement after orthodontic treatment.

^[1][2]

Retainers may be made from clear plastic, acrylic, or wires. PETG belongs to the clear thermoplastic group.

^[1][2]

The tested cleansers could be used on thermoplastic retainers without increasing fracture risk in PETG.

^[2][3][4][5]

Research has examined cytotoxicity and possible oral-tissue effects of materials used in removable retainers, including PETG.

^[2][3][4][5]

Can cleaning damage a PETG retainer?

In testing, the cleansers studied did not increase fracture risk in PETG.

^[2][3][4][5]