Warranty & Disclaimer

APPENDIX 6: True Function Limited Warranty and Disclaimer

True Function Laboratory guarantees that our appliances are constructed to your prescription specifications, will fit the working model provided or the working model created from the impression provided, and be free of defects in materials and craftsmanship.

Due to factors out of our control, such as distorted models or impressions, we can only guarantee our fabrication technique and the materials used. Warranty coverage is only effective with the receipt of the original appliance, original models/and or impressions, and bite registration (if used in original manufacture of the device). All returns will be reviewed for warranty coverage upon receipt of the appliance along with the original model and/or impression.

True Function will evaluate all returns on the following criteria:

  • Receipt of broken or defective appliance without original model/impression. Any appliance that is returned without the original model will not be covered.
  • Assessment of defective material.
  • Assessment of defects in workmanship.

If a new appliance is ordered during the evaluation of the defective appliance or while being worn by the patient until the new/repaired one is delivered, there will be a full charge for the replacement appliance.

True Function Laboratory, Inc. shall not be liable for any defects that are caused by neglect, misuse, or mistreatment of its products by any third party or for any product that has been altered or modified in any way by any entity other than True Function Laboratory, Inc.

If any of our products fail to conform to our warranty, True Function Laboratory, Inc. will repair or replace the product, at the lab’s discretion. Repaired and replacement products will be covered for the remainder of the original warranty period.

The following chart gives the specific warranty period for individual appliances:

Premium Night Guard 24 months
Standard Night Guard 6 months
Dual Laminate Night Guard 6 months
TMJ Splints (excluding Occlusal surface due to forces out of our control) 6 months
EMA 6 months
Oasys / Not including Lock Mechanism 12 months
Silencer/ Not including Hinge 12 months
Passive Orthodontic Retainer (Except Essix) 6 months
Essix Retainer 3 months
Orthodontic Expanders Active 3 months

Any costs incurred for incidental or consequential damages (including inconvenience, lost wages, or pain and suffering) are not covered by these warranties.
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