Evaluation of Marginal Microgaps of Two Glass-ionomer Cements (GIC) in Dogs and Sheep in vivo
Autor: | M. Figurová, S. Štvrtina, Valent Ledecký |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2006 |
Předmět: |
Orthodontics
lcsh:Veterinary medicine General Veterinary Dentition experiment business.industry Cervical caries Anova test Glass ionomer cement Dentistry engineering.material dentition Amalgam (dentistry) histology medicine.anatomical_structure In vivo incisors Dentin medicine engineering lcsh:SF600-1100 business premolars Permanent teeth Glass-ionomer cement |
Zdroj: | Acta Veterinaria Brno, Vol 75, Iss 3, Pp 403-410 (2006) |
ISSN: | 1801-7576 0001-7213 |
Popis: | Figurova, M., V. Ledeck˘, S. ·tvrtina:Evaluation of Marginal Microgaps of Two Glassionomer Cements (GIC) in Dogs and Sheep in vivo. Acta Vet. Brno 2006, 75: 403-410. The aim of the experiment was to evaluate the marginal microgaps of two ionomer cements: Kavitan Plus (Spofa Dental) and Vitremer (3M ESPE) in dog and sheep dentition in vivo. Dentitions of sheep and dogs were restored in vivo with a conventional, glass polyalkenoic, chemically activated cement Kavitan Plus with hydrophilic properties capable and with a resinmodified glass-ionomer cement Vitremer with light-induced polymerization and autopolymerization reaction of methyl metacrylate group. The parameters of glass-ionomers were evaluated in 6 groups of animals, 2 animals in each, at various time intervals (after 1, 4 and 6 months in dogs and 3, 6 and 9 months in sheep, starting from the beginning of the experiment). The restorative materials were placed to buccal surfaces of permanent teeth. At the intervals specified, under general injection anaesthesia, throughout the experiment we extracted 24 teeth from sheep and 30 from dogs. When processing the samples of dog’s teeth two samples were damaged. One month after the placement, Kavitan plus restorations became loose only in one case in dogs (80% successfulness). In sheep two Kavitan Plus restorations became loose after 9 months (50% successfulness). During the experiment we observed neither cracks nor marginal discoloration in both Kavitan Plus and Vitremer restorations. Statistically significant (P = 0.04) differences were observed in the dentin of dogs receiving glass-ionomer Vitremer restorations which exhibited lower marginal microgaps. The remaining results were non- significant (ANOVA test). Fluoride ions released from GIC support the treatment of dental hard tissues. These materials could be used as definitive restorations of class A - D cavities in dogs and dental cervical caries in sheep as well as underlying layers of composite and amalgam materials. Glass-ionomer cement, experiment, dentition, incisors, premolars, histology, microgaps, restoration |
Databáze: | OpenAIRE |
Externí odkaz: |