Impression techniques for multiple implants: a photoelastic analysis. Part II: comparison of four acrylic resins

• Published in: The Journal of oral implantology Vol. 39; no. 5; pp. 545 - 549
• Main Authors: Lopes-Júnior, Itamar, de Lima Lucas, Barbara, Gomide, Henner Alberto, Gomes, Vanderlei Luiz
• Format: Journal Article
• Language: English
• Published: United States Allen Press Inc 01-10-2013
• Subjects: Accuracy; Acrylic Resins; Analysis of Variance; Data processing; Dental care; Dental Implants; Dental Impression Materials; Dental Impression Technique; Dental Prosthesis Design; Dental Prosthesis, Implant-Supported; Dental Stress Analysis - methods; Dentistry; Environmental protection; Humans; Materials Testing; Methods; Periodontal Splints; Prostheses; Statistics, Nonparametric; Stress analysis; Studies; Brazil
• ISSN: 0160-6972; 1548-1336
• DOI: 10.1563/AAID-JOI-D-11-00041

Four commercial brands of chemically activated acrylic resin were compared through photoelastic analysis. Photoelastic resin blocks were made with 2 implants placed parallel to each other and 2 square transfer copings splinted. Both transfers were splinted with chemically activated acrylic resin: Dencrilay, Duralay I, Duralay II, and GC. Data were analyzed by 2-way analysis of variance and Tukey test (P < .05). Statistically significant differences were found among the 3 brands of chemically activated acrylic resin. Dencrilay showed greater dimensional alteration. Duralay I and GC are recommended for the transfer of the position of the multi-implants.