Comparing the marginal leakage and retention of implant‐supported restorations cemented by four different dental cements

Abstract

BackgroundDespite the wide use of implants in dentistry, there is insufficient information about the ideal cement for retention.PurposeTo determine the cement bond strength and marginal leakage of crown and partial denture cemented to implant abutments by four different types of cement.Materials and MethodsEighty‐four direct abutments were divided into eight groups (n = 7). Fifty‐six crown and bridge restorations were cemented using zinc phosphate (ZM), temporary cement (TM), resin‐modified glass‐ionomer cement (GM), and self‐adhesive resin cement (RM). After cementation, thermal cycling and incubation in basic fuchsin dye was applied. The maximum load to failure, marginal leakage, and fracture modes were evaluated.ResultsThe mean of retention strength for the bridges (874 N) was higher than the crown samples (705 N) (P = .005). The mean of retention strength for each cement group was ZM = 1298, RM = 1027, GM = 646, and TM = 187 N (P ≤ .0001). Marginal leakage was recorded in majority of the samples; the highest incidence was detected for ZM samples. The cement fracture was mostly adhesive in nature.ConclusionSelf‐adhesive resin and resin‐modified glass ionomer cement had better mechanical properties to retain implant supported restorations.

Determination of the retentive ability of different luting agents in titanium abutments on implant-supported crowns

“…Cement was seen attached to both the coping and the abutment depicting that failure is usually seen within the cement. For polycarboxylate, cohesive failure can be attributed to the fact that higher bond strength to titanium abutments and high adhesion to the other casting alloys for the cement, as reported by (Saleh and Taşar-Faruk, 2019).…”

Retention of cemented zirconia copings on TiBase abutments

“…Different authors have concluded that the use of Zr surface treatment significantly increases the quality of retention after cementation 7 8 23 24 . However, other studies have shown that abrasive air particles with AL 2 O 3 can cause damage to the surface of Zr, causing flaws and microcracks, compromising the mechanical strength of Zr 25 26 .…”

“…In the individual analysis, the effect of thermocycling was found to be less on resin cements than on the resin-modified glass ionomer cement . Saleh et al 26 also used thermocycling for aging and found that resin cements are more resistant than other types of cements to its effects and maintain the integrity of the cement line. Among the causes of this decrease are increased sorption and solubility, and less interaction with organic components.…”

“…The literature also reports that a lack of application of adhesive systems between Zr structures and resin cements could decrease the bond strength of Zr structures on implants 8 10 12 . However, the increase in adhesion can only be improved by using surface treatments such as blasting, silanization, and use of adhesives next to resin cements containing phosphate groups 26 . The resin cements used in this study include phosphate groups in their composition, which together with the surface treatment could explain the better performance ofboth resin cements.…”

Silikon Replika Dayanak ile Ekstraoral Simantasyon Tekniği: Olgu Sunumu

“…9 Simantasyon tekniği, artık siman miktarını büyük oranda etkilemektedir. 10 Ekstraoral replika tekniği son yıllarda popülerlik kazanmış bir yöntemdir. Araştırmalar bu tekniğin artık siman miktarını önemli ölçüde azalttığını ortaya koymaktadır.…”