Evaluation of changes in salivary composition in renal failure patients before and after hemodialysis.

Background: Saliva plays a major role in preserving the integrity of oral tissues. The oral health of renal failure patients could be negatively affected by the underlying pathology, the dialysis treatment, or an altered salivary composition. Major systemic changes occur during hemodialysis (HD), which could affect the flow rate and biochemical composition of saliva.

Eosinophilic ulcer of the tongue: a rare and confusing clinical entity.

Eosinophilic ulcers are rare, benign, reactive and often self-limiting lesions of the oral cavity. Although the aetiology is not clear, trauma is believed to play a role in their development. Clinically, the lesion manifests as an isolated ulcer, with raised, indurated borders and a yellow fibrinous floor; because of its long duration it often leads to the suspicion of squamous cell carcinoma.