Thickness and marking quality of different occlusal contact registration strips

• Published in: Journal of applied oral science Vol. 22; no. 6; pp. 516 - 521
• Main Authors: Toledo, Maria Fernanda de Souza Mauá Serapião, Jóias, Renata Pilli, Marques-Iasi, Yves Santini, Neves, Ana Christina Claro, Rode, Sigmar de Mello
• Format: Journal Article
• Language: English; Portuguese
• Published: Brazil Faculdade de Odontologia de Bauru da Universidade de São Paulo 01.12.2014; Faculdade De Odontologia De Bauru - USP; University of São Paulo
• Subjects: Analysis of Variance; Dental Materials; Dental Occlusion; Dentistry; DENTISTRY, ORAL SURGERY & MEDICINE; Image Processing, Computer-Assisted; Jaw Relation Record - instrumentation; Jaw Relation Record - methods; Materials Testing; Occlusal adjustment; Oral diagnosis; Prosthodontics; Reference Values; Statistics, Nonparametric; Surface Properties; Occlusal adjustment; Dentistry; Oral diagnosis; Prosthodontics; Dental occlusion
• ISSN: 1678-7757; 1678-7765; 1678-7765; 1678-7757
• DOI: 10.1590/1678-775720140117

Evaluate the thickness and the marking quality of different occlusal contact registration strips (OCRS) and a possible correlation between them. The following OCRS were selected: Accufilm II, BK20, BK21, BK22, BK23, BK28, and BK31. The thickness was measured in three points of the OCRS with an electronic measuring device (TESA), and the mean was calculated. To produce the marks on the strips, composite resin specimens were adapted to a universal testing machine (Versat 2000) with 40 kgf load cell at a speed of 1.0 mm/min. The mark images were photographed with a stereoscopic microscope (Stemi SV11) and processed and analyzed by the 550-Leica Qwin analyzer. Values (μm) found in the 1st and 2nd thickness measurements were: Accufilm II - 16.4 and 14.2; BK20 - 10.0 and 8.1; BK21 - 9.5 and 8.0; BK22 - 9.7 and 8.7; BK23 - 9.8 and 7.9; BK28 - 12.8 and 10.0; and BK31 - 8.4 and 8.0, respectively. The mean (mm2) values found in the mark areas were: Accufilm II - 0.078; BK20 - 0.035; BK21 - 0.045; BK22 - 0.012; BK23 - 0.022; BK28 - 0.024; and BK31 - 0.024. The results were submitted to the Kruskal-Wallis (p<0.05) and Pearson's correlation tests. Only in the 2nd measurement, the OCRS thickness observed was similar to the value indicated by the manufacturers; the Accufilm II and the BK28 strips showed the better marks; and no correlation was found between the thickness and the marking area.