3-YEAR CLINICAL-EVALUATION OF MODIFIED GLUMA ADHESIVE SYSTEMS IN CERVICAL ABRASION EROSION LESIONS

Purpose: To study the clinical performance of two candidates for impro vement of the original Gluma bonding system. Materials and Methods: Ei ghty teeth with cervical buccal abrasion/erosion lesions were identifi ed in 40 patients. The lesions were conditioned with an oxalic acid so lution followed by either a HEMA-glutaraldehyde bonding agent or a for mamide-containing bonding agent. The lesions were restored with a hybr id composite. Each patient received the same number of restorations wi th the two different bonding formulations. All restorations were made by the same operator (JK). Evaluations were based on the USPHS system. Results: No difference between the two groups as to retention, margin al adaptation and discoloration was observed after 3 years. Eight rest orations were lost and a slight increase in marginal discoloration was seen during the observation period.