| 1722 Glass-fiber reinforcement in acrylic resin removable partial dentures | ||
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V.C. CISNEROS1, G.C. STEVENSON1, R.L. ENGELMEIER1, C.M. FLAITZ1, C.M. NICHOLS2, J.M. POWERS1, and T.E. RIVES1, 1University of Texas Houston/Health Science Center, USA, 2Bering Dental Clinic, Houston, TX, USA Fracture resistance of acrylic resin removable partial dentures (ARRPDs) is an important clinical concern. The denture bases can be reinforced by glass-fiber reinforcement (GFR) accurately placed in the potentially weak region of the denture. Objectives: The purpose of this prospective clinical study was to evaluate whether ARRPDs reinforced with GFR had a lower fracture rate than ARRPDs without GFR. Methods: The study population consisted of 50 subjects who were randomized into two groups; 27 patients (21 males and 6 females, mean age 46.5 years old) had conventional, non-reinforced maxillary ARRPDs (control group) and 23 patients (20 males and 3 females, mean age 45.2 years old) had maxillary ARRPDs reinforced with GFR (test group). A review of the medical history, diagnosis, treatment plan, pre-operative evaluation, fabrication and delivery of ARRPDs, and post-insertion evaluation of the prosthetic restoration was conducted under a standardized protocol. Each subject was missing one or more maxillary anterior tooth/teeth. The test group ARRPDs were reinforced with GFR (StickNet™) positioned in the acrylic resin denture base lingual to the anterior artificial teeth. Post-insertion evaluations of ARRPD denture base fractures were performed at several intervals after delivery. Statistical analysis comparing the two groups was performed using the Fisher's Exact Test. Results: At the one-month follow-up appointments, the control group (n=27) had seven failures (25.9%) and the test group (n=23) had none (P<0.01). At the three-month follow-up appointments, the test group had four failures (17.4%) and the control group had none (P<0.04). Total failures for the test and the control groups were not significantly different over three months. Conclusions: Preliminary data from this short-term study demonstrated that the acrylic resin removable partial dentures reinforced with glass-fiber exhibited fewer and delayed denture base fractures compared with conventional partial dentures without reinforcement. | ||
| Seq #198 - Removable Partial Denture Research 10:15 AM-11:30 AM, Friday, 12 March 2004 Hawaii Convention Center Exhibit Hall 1-2 | ||
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