title: Biocompatability of compomer restorative systems on nonexposed dental pulps of primate teeth.
abstract: This study evaluated the histologic response of total-etched and nonetched compomer restored cavity preparations. One hundred fifteen class 5 cavity preparations were placed in the teeth of four healthy adult monkeys at 7, 27, and 90 days. A 37% H3PO4 was applied for 10 seconds and rinsed in total-etched preparations. No statistical differences were seen in inflammatory reactions among total-etched or nonetched compomers at 7, 27, and 90 days. There were no statistical differences in inflammatory cell responses among all compomer systems in regard to time intervals. Pulpal responses of compomers were greater than IRM at each time period. Pulp responses were associated with stained bacteria in 32 of 89 compomer teeth. No necrotic pulps were seen in any teeth. Statistical data show a positive correlation (P < 0.05) between bacterial presence and pulpal inflammation. IRM pulps showed no inflammation or bacterial staining. Compomers are biologically compatible with pulp tissues when bacteria are excluded.
authors.affiliation: University of Alabama at Birmingham, School of Dentistry, Department of Restorative Dentistry 35294-0007, USA.
authors.forename: B
authors.initials: B
authors.lastname: Tarim
authors.forename: A A
authors.initials: AA
authors.lastname: Hafez
authors.forename: S H
authors.initials: SH
authors.lastname: Suzuki
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: C F
authors.initials: CF
authors.lastname: Cox
mesh_terms: D000134:Acid Etching, Dental; D000704:Analysis of Variance; D000818:Animals; D001672:Biocompatible Materials / Q000494:pharmacology; D020770:Compomers; D003188:Composite Resins / Q000494:pharmacology*; D003763:Dental Leakage; D003782:Dental Pulp / Q000187:drug effects* / Q000382:microbiology; D003793:Dental Restoration, Permanent / Q000379:methods; D003804:Dentin / Q000382:microbiology; D003809:Dentin, Secondary / Q000187:drug effects; D005899:Glass Ionomer Cements / Q000737:chemistry / Q000494:pharmacology*; D008254:Macaca nemestrina; D008689:Methacrylates / Q000494:pharmacology; D008768:Methylmethacrylates / Q000494:pharmacology; D011671:Pulpitis / Q000139:chemically induced; D017640:Silicates / Q000494:pharmacology; D015035:Zinc Oxide-Eugenol Cement / Q000494:pharmacology
chemical_list: D001672:Biocompatible Materials; C105428:Compoglass; D020770:Compomers; D003188:Composite Resins; C088486:Dyract; D005899:Glass Ionomer Cements; D008689:Methacrylates; D008768:Methylmethacrylates; D017640:Silicates; D015035:Zinc Oxide-Eugenol Cement; C031667:IRM cement