zinc (zn) as a nutritional factor affects the health of the oral tissues. this study was done for the evaluation of the effects of zinc deficiency on the oral tissues of rats. the study was carried out on 14 male wistar rats, cessation of lactation on the 24th day after birth. the rats were randomly divided into two groups. zinc deficient (zd) diet was used for one group and another group was f...

the measurement of anti-streptokinase antibodies can distinguish the patients who may benefit from streptokinase and those who should be treated with some other thrombolytic regimen. neutralising titration test is a commonly used classical assay for measuring anti-streptokinase antibodies and in this assay the ability of anti-streptokinase antibodies in patients' sera in preventing the lytic ef...

introduction: nowadays the necessity of the existence of a certain width of keratinized gingiva is emphasized upon to maintain periodontal health and prevent soft tissue recession around teeth and dental implants. this study was carried out to compare two gingival graft procedures including connective tissue graft and graft with a combination of collagen sponge with platelet-rich plasma and pla...

background: denture stomatitis is a common oral lesion following the use of ill-fitting dentures. a layer of tissue conditioner is usually used to improve adaptation of the denture. these liners can support the in vivo adhesion and colonization of the oral candida . the aim of this study was to evaluate the efficacy of the two common antifungal agents mixed with tissue conditioner against candi...

the modern surgical endodontic treatment is a safe and predictable procedure with high success rate. however, several factors can retard or impede the proper healing process. use of a high speed handpiece during hard tissues management (osteotomy and apical resection) can potentially be one of these factors. formation of metallic debris from the surgical diamond burs, production of necrotic loc...

background: besides acute lethal cyanide poisoning, its chronic intoxication may also produce some pathologic effects on different tissues that precedes alterations in biochemical parameters. the present study was aimed to evaluate the effects of sublethal cyanide exposure on some tissue enzyme activities in liver and kidney of rats. methods: twelve male rats were divided into two groups as fol...

for many years, gutta-percha has been the root canal filling material of choice. chloroform is one of the most efficient solvents widely used for gutta-percha removal in retreatment cases, despite being toxic and carcinogenic. the present case report discusses a chloroform extrusion through an existing perforation to the surrounding periodontal ligament space and subsequent necrosis in supporti...

background when using brain dead donors for organ donation, assessment of kidney function before the procedure is essential. objectives it would be ideal to find an early marker of viability of donor kidneys that is more accurate than creatinine. patients and methods the present study was conducted from march of 2011 to march of 2012, included 52 deceased donors. serum and urinary neutrophil ge...

objective(s)tissue engineering is an attractive science because it promises new therapeutic strategies for repairing organs that have lost functions due to damage. the purpose of this study was to evaluate induction effect of human gingival scaffold in tissue engineering for skin regeneration.materials and methodstissue samples were obtained from crown-lengthening procedures and wisdom teeth re...

background : in recent years tissue engineering developed to replace or repair damaged tissues using cell and biomaterial. one of the most important fields of tissue engineering is simulation of in vivo micro environment of body tissues. this study aimed to develop culture chamber and cell biomaterial sheet engineering for the reconstruction of cartilage tissue. methods : stainless steel cultur...