title: Influence of the temperature on the cement disintegration in cement-retained implant restorations.
abstract: The aim of this study was to estimate the average disintegration temperature of three dental cements used for the cementation of the implant-supported prostheses. One hundred and twenty metal frameworks were fabricated and cemented on the prosthetic abutments with different dental cements. After heat treatment in the dental furnace, the samples were set for the separation to test the integration of the cement. Results have shown that resin-modified glass-ionomer cement (RGIC) exhibited the lowest disintegration temperature (p<0.05), but there was no difference between zinc phosphate cement (ZPC) and dual cure resin cement (RC) (p>0.05). Average separation temperatures: RGIC - 306 ± 23 °C, RC - 363 ± 71 °C, it could not be calculated for the ZPC due to the eight unseparated specimens. Within the limitations of the study, it could be concluded that RGIC cement disintegrates at the lowest temperature and ZPC is not prone to break down after exposure to temperature.
authors: Institute of Odontology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania. linktomo@gmail.com
authors: Tomas
authors: T
authors: Linkevicius
authors: Egle
authors: E
authors: Vindasiute
authors: Algirdas
authors: A
authors: Puisys
authors: Laura
authors: L
authors: Linkeviciene
authors: Olga
authors: O
authors: Svediene
mesh_terms: D003738:Dental Cements; D017005:Dental Debonding; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent; D005899:Glass Ionomer Cements; D006801:Humans; D019279:Resin Cements; D013696:Temperature; D015036:Zinc Phosphate Cement
chemical_list: D003738:Dental Cements; D005899:Glass Ionomer Cements; D019279:Resin Cements; D015036:Zinc Phosphate Cement