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Adaptation and Validation of the Early Childhood Oral Health Impact Scale in Lithuania
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Influence of the temperature on the cement disintegration in cement-retained implant restorations
Tomas Linkevicius, Egle Vindasiute, Algirdas Puisys, Laura Linkeviciene, Olga Svediene
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Pain and discomfort perception among patients undergoing orthodontic treatment: Results from one month follow-up study
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Evaluation of Mechanical Properties on three Nanofilled Composites
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Stomatologija 2012; 14 (4): 114-7 145 KB

Influence of the temperature on the cement disintegration in cement-retained implant restorations

Tomas Linkevicius, Egle Vindasiute, Algirdas Puisys, Laura Linkeviciene, Olga Svediene

Summary

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.

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¹Institute of Odontology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
²Vilnius Research Group, Vilnius, Lithuania Vilnius
³Vilnius Implantology Center, Vilnius, Lithuania

Tomas Linkevicius^{1, 2, 3} – D.D.S., Dip Pros, PhD, assoc. prof.
Egle Vindasiute^{2, 3} – D.D.S.
Algirdas Puisys^{2, 3} – D.D.S.
Laura Linkeviciene¹ – D.D.S., PhD, lecturer
Olga Svediene¹ – D.D.S., postgraduate student

Address correspondence to Dr. Tomas Linkevicius, Institute of Odontology, Faculty of Medicine, Vilnius University, Zalgirio 115/117, LT – 08217, Vilnius, Lithuania.
E-mail address: linktomo@gmail.com