Factors influencing the failure of dental glass ionomer luting cement due to contraction

Glass ionomer cement used to fix a post within the root of a tooth undergoes cohesive failure on setting. This study aimed to determine the importance of humidity, substrate material and post design on cement failure. Nine groups of five specimens were prepared: groups 1–3 addressed the influence of...

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Bibliographic Details
Published in:Biomaterials 1995, Vol.16 (1), p.11-16
Main Authors: Mitchell, C.A., Orr, J.F., Kennedy, J.G.
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Biomechanical Phenomena
Cattle
Dental Bonding
Dental materials
Dental Stress Analysis
Dentin - chemistry
Dentin - metabolism
glass ionomer cements
Glass Ionomer Cements - chemistry
Glass Ionomer Cements - standards
Humidity
Incisor - physiology
Medical sciences
Microscopy, Electron, Scanning
Polytetrafluoroethylene - chemistry
Polytetrafluoroethylene - metabolism
post and core technique
Post and Core Technique - standards
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Root Canal Filling Materials - standards
Technology. Biomaterials. Equipments. Material. Instrumentation
Tissue Adhesions
Tooth Root - physiology
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Summary:Glass ionomer cement used to fix a post within the root of a tooth undergoes cohesive failure on setting. This study aimed to determine the importance of humidity, substrate material and post design on cement failure. Nine groups of five specimens were prepared: groups 1–3 addressed the influence of post design and sectioning process on cement failure, while groups 4–9 examined the interaction between the cement, substrates and humidity. Replicas were prepared of all specimens and viewed using scanning electron microscopy. It was concluded that humidity and substrate influenced the failure of glass ionomer cement whereas post design did not.
ISSN:0142-9612
1878-5905
DOI:10.1016/0142-9612(95)91090-L