Experimental toothpastes containing β-TCP nanoparticles functionalized with fluoride and tin to prevent Erosive Tooth Wear.

Objectives: The present study aimed to synthesize toothpastes containing Beta- TriCalcium Phosphate (β-TCP) nanoparticles, functionalized with fluoride and tin, and test their ability to reduce erosive tooth wear (ETW).

Methods: Toothpastes were synthesized with the following active ingredients: 1100 ppm of fluoride (as sodium fluoride, F), 3500 ppm of tin (as stannous chloride, Sn), and 800 ppm of β-TCP (Sizes a - 20 nm; and b - 100 nm). Enamel specimens were randomly assigned into the following groups (n = 10): 1.

Activated charcoal toothpastes do not increase erosive tooth wear.

Objectives: To assess the effect of activated charcoal toothpastes on enamel and dentin erosive wear.

Methods: Ninety enamel and dentin slabs were randomly distributed into 9 experimental groups (n = 10/substrate): Artificial saliva (negative control); Elmex Caries (EXC - 1400 ppm F as AmF, reference toothpaste without charcoal); Colgate Luminous White Activated Charcoal (CLW - 1000 ppm F as MFP); Colgate Natural Extracts (CNE - 1450 ppm F- as NaF); Oral-B 3D White Mineral Clean (OMC - 1100 ppm F as NaF); Curaprox Black is White (CBW - 950 ppm F as MFP); Bianco Carbon (BIC - no F); Natural Suavetex (NSX - no F); Oralgen Nupearl Advanced (ONA - no F). Specimens were submitted to a 5-day erosion-toothbrushing abrasion cycling.

Pharyngeal swallowing phase and chronic cough.

Introduction:  The act of swallowing depends on a complex and dynamic process which uses common structures to the act of breathing; respiratory problems can cause swallowing difficulties.

Aim:  To assess the swallowing pharyngeal phase in patients with chronic cough.

Method:  Retrospective study with 15 patients of both genders, patients with chronic cough and risk factors for aspiration defined by the pneumologic diagnosis.