نتایج جستجو برای: apical papilla
تعداد نتایج: 33339 فیلتر نتایج به سال:
This article will discuss and evaluate the potential conditions that can present in patients who require or already have had multiple anterior tooth extractions; the proper considerations for the use of ovate pontics in the treatment plan also will be discussed. While the ultimate treatment decisions must be determined on a case-by-case basis, it is important to recognize in advance the various...
It is generally agreed that the dermal papilla is a vital component of the hair and feather follicle. Lillie & Wang (1941, 1944) and Wang (1943) have shown for feather follicles that if the dermal papilla, which normally maintains its integrity throughout the growth cycles, and its ectodermal investment are removed from the follicle, feather production ceases. However, if a dermal papilla is tr...
Parallel cultures of adult rat vibrissa dermal papilla cells and skin fibroblasts revealed differences between the two cell types with respect to a number of criteria. In particular the dermal papilla cells demonstrated a distinctive single cell morphology, and at confluence formed cell aggregates radically different from regular fibroblast multilayering and patterning. This finding confirmed r...
Pollination is an early and critical step in plant reproduction, leading to successful fertilization. It consists of many sequential processes, including adhesion of pollen grains onto the surface of stigmatic papilla cells, foot formation to strengthen pollen-stigma interaction, pollen hydration and germination, and pollen tube elongation and penetration. We have focused on an examination of t...
Retention of the capacity to induce the growth of hair by cultured adult rat vibrissa dermal papilla cells has been investigated. Small pellets of serially cultured papilla cells were implanted into the bases of the exposed follicular epidermis of amputated adult rat vibrissa follicles. Amputated follicles that received no cell implants or implants of cultured dorsal skin fibroblasts were used ...
In rat, chorda tympani nerve taste responses to Na(+) salts increase between roughly 10 and 45 days of age to reach stable, mature magnitudes. Previous evidence from in vitro preparations and from taste nerve responses using Na(+) channel blockers suggests that the physiological basis for this developmental increase in gustatory Na(+) sensitivity is the progressive addition of functional, Na(+)...
BACKGROUND/AIMS We describe procedures for endoscopic approach via the minor papilla in symptomatic patients with pancreas divisum, pancreatic stones, and stricture of the Santorini's duct, and neoplasms of the minor papilla: endoscopic minor papilla sphincterotomy, endoscopic pancreatic stone removal, endoscopic stent placement in Santorini's duct, and resection of minor papilla neoplasms. M...
BACKGROUND The distance from bone crest to contact point is only the most frequently studied of the many factors that influence whether interdental papilla are present. The purpose of this study was to discover the association between embrasure morphology and central papilla recession. METHODS The central papilla was visually assessed in 310 adults using paralleling periapical radiographs of ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید