PURPOSE The aim of this study was to evaluate alterations of papilla dimensions after orthodontic closure of the diastema between maxillary central incisors. METHODS Sixty patients who had a visible diastema between maxillary central incisors that had been closed by orthodontic approximation were selected for this study. Various papilla dimensions were assessed on clinical photographs and stu...

BACKGROUND Previous studies have evaluated the presence of juxtapapillary duodenal diverticula (JPDD) and the association with pancreatobiliary disease, but not the association of the papilla with an existing JPDD. We investigated the association of different localizations of the papilla with JPDD. METHODS We studied patients in whom JPDD was detected during endoscopic retrograde cholangiopan...

background: the differences between marginal gingiva and interdental papilla may be due to variation in the molecular composition of these two different anatomical structures. the aim of this study was to evaluate the staining intensity of fibronectin in human marginal gingiva and interdental papilla. materials and methods: in a prospective analytical study, 16 healthy subjects needing crown le...

The dermal papilla is a discrete group of cells at the base of the hair follicle and is implicated in controlling the hair growth cycle. Early passage dermal papilla cells can induce hair growth in vivo, but, upon further culturing, this property is lost. In order to study the events occurring in hair induction, a representative dermal papilla cell line was required. We have transfected passage...

For anurans, increasing complexity of the inner ear has been correlated with speciation rates. The evolution of a complex amphibian papilla (AP) is thought to have facilitated speciation by extending the range of frequencies over which mating calls may diverge. Although this example has been proposed to represent a key innovation, the mechanism by which the AP is thought to promote speciation m...

Metastatic tumors of the duodenal papilla (ampulla of Vater) are rare. The images here are from a middle-aged gentleman with progressive cholestatic jaundice and recurrent cholangitis, with a past history of nephrectomy for renal cell carcinoma (RCC) 6 years earlier. Endoscopy revealed a bulky duodenal papilla, and the biopsy showed features consistent with RCC (Figs. 1 and 2). Metastatic tumor...

PURPOSE The purpose of this study was to evaluate the clinical efficacy of enhancing deficient interdental papilla with hyaluronic acid gel injection by assessing the radiographic anatomical factors affecting the reconstruction of the interdental papilla. METHODS Fifty-seven treated sites from 13 patients (6 males and 7 females) were included. Patients had papillary deficiency in the upper an...