title: Patient survey on Invisalign®treatment comparing [corrected] the SmartTrack®material to the previously used [corrected] aligner material.
abstract: In 2013, a novel material SmartTrack®was introduced to replace the previous material used for Invisalign®aligners. We conducted this study to test how this transition was accepted by patients during ongoing Invisalign®treatment.
  
  
  
  We surveyed a total of 72 patients (68 % women, 32 % men, mean age: 29.3 ± 9.2 years) who had worn the new material for a mean of 6 months. They completed a questionnaire with 25 items that compared both materials in terms of pain, pressure upon insertion, comfort, mucosal irritation, phonetics, discoloration, and taste.
  
  
  
  On a numerical rating scale (NRS) ranging from 0 to 10, the new aligner material was rated by the respondents to cause significantly (p < 0.001) less maximum pain than the old material (2.8 vs. 3.8). Significant reductions were obtained for duration of pain (p < 0.001) and duration of pressure (2.5 vs. 1.9 days; p = 0.001) upon insertion of the aligners. Over 90 % of the respondents indicated less or equal pain during eating, felt that the new material offered a tighter fit, and provided more favorable ratings for impairment, durability, and discoloration. Improved comfort was reported by 50 % of the respondents.
  
  
  
  The new material was favorably rated by the patients and showed significant reductions in pain intensity, pain duration, and pressure upon insertion. Important clinical parameters like overall comfort and impairment also were improved. The clinical effectiveness of the new material remains to be investigated.
authors: Department of Anesthesiology and Intensive Care Medicine, Pain Management Center, Medical School Mannheim at University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.|Department of Clinical Psychology, Psychotherapy and Experimental Psychopathology, Johannes Gutenberg University Mainz, Mainz, Germany.
authors: Anne-Kathrin
authors: AK
authors: Bräscher
authors: , Währinger Strasse 44, Vienna, Austria.
authors: Dietmar
authors: D
authors: Zuran
authors: Department of Anesthesiology and Intensive Care Medicine, Pain Management Center, Medical School Mannheim at University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
authors: Robert E
authors: RE
authors: Feldmann
authors: Department of Anesthesiology and Intensive Care Medicine, Pain Management Center, Medical School Mannheim at University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany. justus.benrath@umm.de.
authors: Justus
authors: J
authors: Benrath
mesh_terms: D000328:Adult; D015984:Causality; D015897:Comorbidity; D017267:Dental Prosthesis Design; D005260:Female; D005858:Germany / Q000453:epidemiology; D019538:Health Care Surveys; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000453:epidemiology / Q000523:psychology* / Q000628:therapy*; D009968:Orthodontic Appliances, Removable / Q000706:statistics & numerical data*; D009971:Orthodontics, Corrective / Q000295:instrumentation / Q000523:psychology / Q000706:statistics & numerical data; D010146:Pain / Q000453:epidemiology / Q000517:prevention & control / Q000523:psychology*; D010349:Patient Compliance / Q000523:psychology* / Q000706:statistics & numerical data; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D015995:Prevalence; D011788:Quality of Life / Q000523:psychology; D016896:Treatment Outcome
keywords: Aligner; Impairments; Invisalign®; Pain; SmartTrack®; Survey