Retention of luting agents on implant abutments of different height and taper

Abstract

The most retentive cement was zinc-phosphate, followed by polyurethane, polyurethane plus vaseline, and zinc oxide-eugenol.

Assessment of the tensile strength of hexagonal abutments using different cementing agents

“…Bresciano et al 16 In the present study, higher strength was also obtained for zinc phosphate when compared with zinc oxide, using the thermal aging process.…”

“…With regard to the materials assessed, zinc phosphate has small particles that influence strength and setting time, its solubility in water is relatively low, and bonding occurs mainly by mechanical misalignment between the interfaces, and not by means of chemical interactions. 17 Bresciano et al 16 (2005) proved these characteristics in their tests, obtaining a resistance of 61 kgf with this cement. In the same study, zinc phosphate cement presented the highest tensile strength mean value.…”

“…In other studies, the copies went through a waxing, embedding and casting process in order to be adapted to the respective abutments afterwards. 2,3,[7][8][9][10]12,13,15,16 In the present study, machined prosthetic components were used, thus a device was developed to adapt the copings to the tensile device. This device fixed the coping in such a way that no loop or groove needed to be welded to it, or fab- ricated for performing the tensile test.…”

Vertical marginal gap & retention of ceramic full coverage & inlay retained ceramic fixed partial dentures

“…Many factors have been demonstrated to influence the retention of fixed prosthetic appliances, such as the size and shape of prepared teeth [33], manipulation of cement [34][35][36], retentive properties of cement [37][38][39], cement film thickness [40,41], relieving space or venting for cement [42,43] , cement application [44], roughness of dentinal surface [45], the convergence and the preparation height [46][47][48][49]. Dental literature is poor on studying the retentive strength of the inlay retained ceramic FPDs.…”

Resistência à remoção por tração de coroas NiCr cimentadas sobre munhões usinados em liga de titânio, irradiados ou não por LASER

“…desvio-padrão (dp) e do coeficiente de variação (cv), este expresso em porcentagem. 33 , BERNAL et al 01 , BRECIANO et al 02 , que utilizaram 10 kg.…”