Clinical evaluation of the longevity and durability of an impressionless intraoral appliance (iNterra) system.
OBJECTIVE
To clinically evaluate the durability of an impressionless intraoral appliance (iNterra) system, fabricated using a direct/indirect technique.


METHODS
Fifty-three (53) appliances were fabricated using the technique and followed for a median observation period of 301 days. Appliances were evaluated by calibrated operators for adaptation to teeth, retention, stability, and paresthesia, as reported by subjects, in addition to wear.


RESULTS
All restorations (100%) were rated acceptable for adaptation to teeth, retention, and stability at placement. At the longest recalls, 96.2% of appliances survived without fracture. A similar percentage (96.0%) were rated acceptable for adaptation to teeth, retention, and stability. Paresthesia (reversible malodor) was reported in one (1.9%) case. In terms of wear, 98.1% of appliances delivered were rated as "no wear evident" or "evident but acceptable wear."


CONCLUSIONS
Overall, the evaluators agreed that the impressionless system offered procedural efficiency advantages, was clinically viable, and should be a valuable option to practitioners considering appliance therapy to control parafunctional behavior.
Sundar
Veeraraghavan
V
Dentsply Prosthetics, York, PA, USA. vsundar@dentsply.com
Ewoldsen
Nels
N
Hall
Phillip
P
Bennett
William
W
Magyar
Carl
C
D000179:Acrylates; D000328:Adult; D002012:Bruxism / Q000628:therapy*; D003761:Dental Impression Technique; D005260:Female; D006801:Humans; D055115:Light-Curing of Dental Adhesives; D008297:Male; D017090:Occlusal Splints; D016382:Orthodontic Appliance Design; D055815:Young Adult
D000179:Acrylates