Thirty extracted human premolars received standardised full crown preparations. The teeth were randomly assigned into three groups: smeared (control), etched (phosphoric acid gel), and bonded (Scotchbond MP). Each tooth was perfused with saline to establish perfusion rates at baseline for all groups, and the post-etching stage for etched and bonded groups, post-bonding stage for bonded group, and post-cementation stage for all groups. Crowns made with four layers of die-spacing were cemented with zinc phosphate cement at 100N. Pulpal pressures were measured with a pressure transducer. It was concluded that dentine bonding agents may have the potential to reduce pulpal damage caused by pressure transmission from cementation.

A direct result of the liquid continuum within the pulpo-dentine complex is the effect of restorative dentistry on the health of the dental pulp. Better understanding of the role of the complex in relation to restorative dentistry enables strategies to be devised in preserving pulp vitality. A review of the literature produced good laboratory evidence to support the prophylactic sealing of crown preparations with dentine bonding agents.

This article explores the act of walking with vulnerability as a methodology of becoming-unhinged. As walking assemblage, we walk as an assemblage, becoming-unhinged through affective points of contact with the more-than-human world. We consider the act of walking-thinking as an act that forces thought to become-unhinged and, in that moment, permitting thought to come into contact with all kinds of affective points. We move through a dreaming-soulful practice of walking-thinking along coastal treks, with cows, with the moon, with vulnerability and with frames. The meeting of land/water, a full moon, a hillside cemetery, a sculpture park and the use of blindfolds and frames challenge perception- apprehension, while a series of written texts, movement, stillness and contemplative practices activate vulnerability. Our emerging texts speak back to twenty-first-century academia, challenging its normative production of knowledge through the co-creation and re-creation of text/images, producing knowledge differently and opening up possibilities.