title: A clinical trial of a light activated bonding material over an 18 month period.
abstract: Heliosit-orthodontic, a visible light cured adhesive, has been compared with Right-on, a chemically activated adhesive, on 122 patients for a mean period of 12 months with a range 3-18 months. The overall bond failure rate was 20 per cent. Heliosit-orthodontic had a 23 per cent failure rate compared with a 16 per cent failure rate for Right-on. Heliosit-orthodontic performed less well on the posterior teeth particularly lower second premolars (P less than 0.01). Both materials performed equally well in the labial segment.
mesh_terms: D017438:Bisphenol A-Glycidyl Methacrylate; D002986:Clinical Trials as Topic; D003188:Composite Resins; D001840:Dental Bonding; D003764:Dental Materials; D006801:Humans; D009967:Orthodontic Appliances; D011109:Polymethacrylic Acids; D011336:Probability; D011897:Random Allocation; D013997:Time Factors
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D011109:Polymethacrylic Acids; D017438:Bisphenol A-Glycidyl Methacrylate