Colonization of silicone-based soft lining materials by pathogenic yeast-type fungi is a common problem associated with the use of dentures. In this study, silver sodium hydrogen zirconium phosphate (SSHZP) was introduced into polydimethylsiloxane-based material as an antimicrobial filler at concentrations of 0.25, 0.5, 1, 2, 4, 6, 8, 10, 12, and 14% (w/w). The in vitro antimicrobial efficacy w...

Experimental observations indicate substantial differences in the rheology and dynamics of polymer liquids reinforced with colloidal and nanosize particles compared to complex fluids filled with micron sized particles (Reynaud et al. 2001; Zhang and Archer 2002, 2004; Donnet 2003). The filler size effect on the overall material behavior has been attributed to either inter-particle or polymer-pa...

OBJECTIVE To determine whether endogenous synthesis of new extracellular matrix may contribute to the degree and duration of clinical benefits derived from cross-linked hyaluronic acid dermal filler injections. DESIGN In vivo biochemical analyses after filler injections. SETTING Academic referral center. PARTICIPANTS Eleven healthy volunteers (mean age, 74 years) with photodamaged forearm...

This study was conducted for evaluation of the ability to maintain efficacy and biocompatibility of cross-linked dextran in hydroxypropyl methylcellulose (DiHM) and cross-linked dextran mixed with PMMA in hydroxypropyl methylcellulose (PDiHM), compared with hyaluronic acid (HA) filler. Saline and HA solution was administered in the negative and positive control groups, and DiHM and PDiHM were a...

Background. In vitro studies have revealed a direct association between resin content and cytotoxicity of composite resins; however, implantation studies in this regard are sparse. This study investigates the relationship between filler content of composite resins and biocompatibility. Methods. This research employed twelve 180‒200-gr male Wistar rats, 1 nano-hybrid (Prime-Dent Inc.) and 1 micr...

BACKGROUND There is increasing interest among patients and plastic surgeons for alternatives to rhinoplasty, a common surgical procedure performed in Asia. OBJECTIVES To evaluate the safety, efficacy, and longevity of a hyaluronic acid filler in the correction of aesthetically detracting or deficient features of the Asian nose. METHODS Twenty-nine carefully screened Asian patients had their...

Hyaluronic acid fillers have become popular soft tissue filler augmentation agents over the past several years. They have helped revolutionize the filler market with a number of new products available for use for our patients. The purpose of this manuscript is to review the characteristics of the HA fillers and to review each of the current products currently available for use in the US.

PURPOSE OF REVIEW With the accepted understanding of volume loss as one of the main factors in facial aging, oculofacial surgeons are embracing the concept of 'removing' less and 'filling' more. The purpose of this review is to present an update of the different alternatives and techniques for lower eyelid and midface restoration/rejuvenation using filler agents. RECENT FINDINGS When a filler...

BACKGROUND Injectable hyaluronic acid fillers (HAFs) and laser/light procedures have become increasingly popular for noninvasive facial rejuvenation in many cosmetic practices. However, the effect of laser/light treatments on HAFs is unknown. OBJECTIVE Our objective was to examine the effect of laser/light treatments on HAFs in a porcine model. METHODS The abdomens of 6 Yorkshire pigs were ...

In “Complications After Facial Injections With Permanent Fillers: Important Limitations and Considerations of MRI Evaluation,” the authors propose the use of magnetic resonance imaging (MRI) as an investigative tool in the assessment of delayed-onset complications subsequent to injections of permanent fillers. Utilization of this investigative imaging tool is proposed to be helpful in assessing...