Biocompatibility of tissue conditioners. Histological study in rats.

Abstract

The purpose of this study was to verify histologically the biocompatibility of the tissue conditioners, F. I. T. T. , Lynal, Visco-gel, and a zinc oxide and eugenol impression paste, when placed in intraoral wounds and surgical osseous cavities in rats. It was possible to conclude that the paste was the most irritating material. Among the tissue conditioners, Lynal and Visco-gel presented similar results and were more biocompatible.

Biocompatibility of a resilient resin. A histological study in rats.

“…Connective tissue newly formed in mandible cavities revealed similar reactions to the subcutaneous implants. However, the osseous reactions are comparable with some of the groups in the study by PASSERI & CARVALHO [8] on the biocompatibility of tissue conditioners and are better than intraosseous "Bone Wax" implants [10]. As with the marginal bone necrosis provoked by osteotomies and some necrotic bone fragments that persisted in the cavities, we observed a form of wound healing similar to that in the tissue conditioner groups [8].…”

“…However, the osseous reactions are comparable with some of the groups in the study by PASSERI & CARVALHO [8] on the biocompatibility of tissue conditioners and are better than intraosseous "Bone Wax" implants [10]. As with the marginal bone necrosis provoked by osteotomies and some necrotic bone fragments that persisted in the cavities, we observed a form of wound healing similar to that in the tissue conditioner groups [8]. We believe that the infiltration of some neutrophils, lymphocytes and multinuclear cells was due to necrotic bone fragments resulting from the osteotomy.…”

The use of tissue conditioner or zinc oxide and eugenol impression paste in the excision of epulis fissurata.

“…Zinc oxide and eugenol impression paste is frequently used for this purpose. However, in addition to its hard consistency, it contains approximately 12% eugenolm, which tends to irritate the tissues [2,3,4]. The use of tissue conditioner would thus seem more recommendable.…”

Viabilidade do uso de dispositivo acrílico intra-oral reembasado por material resiliente temporário modificado por antimicrobianos: estudo preliminar em ratos

“…Muitos estudos têm sido desenvolvidos com o objetivo de avaliar os efeitos citotóxicos in vitro (CAMPANHA et al, 2006;CHAVES et al, 2010;HUANG et al, 2001;KANIE et al, 2009;LEFEBVRE et al, 2001;OKITA;HENSTEN-PETTERSEN, 1991;OZDEMIR;YILMAZ;YILMAZ, 2009;PARK et al, 2004;TAY et al, 2012) e in situ (KALLUS, 1984;NAGEM-FILHO;CHIODI-NETTO;DE ARAUJO, 1973;PASSERI;DE CARVALHO, 1985) dos materiais para base de prótese. A citotoxicidade in vitro dos condicionadores teciduais e reembasadores resilientes tem sido investigada pelo método de cultura de fibroblastos de camundongos (KANIE et al, 2009;LEFEBVRE et al, 2001;OKITA;HENSTEN-PETTERSEN, 1991;OZDEMIR;YILMAZ;YILMAZ, 2009;PARK et al, 2004;TAY et al, 2012).…”