introduction: diode laser irradiation has recently shown promising results for treatment of gingival pigmentation. this study sought to compare the efficacy of 2 diode laser irradiation protocols for treatment of gingival pigmentations, namely the conventional method and the sieve method. methods: in this split-mouth clinical trial, 15 patients with gingival pigmentation were selected and their...

The term “Oro-facial pigmentation” refers to a wide range of lesions or conditions featuring a change of color of Oro-facial tissues. Pigmentation of the Orofacial tissues is seen in certain races or ethnic groups such as Indians, Africans and Europeans. Broadly classifying, Oro-facial pigmentation is divided into endogenous pigmentation and exogenous pigmentation. Endogenous pigmentation is du...

In those hands I see chipped plates, plastic sofa case, dripping taps, the smell of too little tenement light, of urine rained on hapless clothes, a smell her grandson will call stale and will define everything in life he will forever run from. Her sallow hands, atrophic from not holding and not being held, like garaged brush stiffened with last year’s paint; hands that rest, as she finishes, o...

Scientists have long known that variation in animal color patterns carry far more than cosmetic signifi cance. Darwin fi rst connected pigmentation with adaptive advantage, noting that male fi nches with bright red plumage enjoyed greater reproductive success than their drab competitors. Explaining why coloration confers such advantages, however, has proved somewhat easier than showing how it a...

statement of problem: physiologic pigmentation of oral mucosa is considered as a prevalent entity among black people and those having relatively dark skin. gingival physiologic pigmentation may cause problems for some patients specially ladies as far as esthetics is concerned. to overcome the issue, the surgery might be suggested which can cause some problems due to its side effects. cryotherap...

Seed-coat cracking and undesirable color of seed coat highly affects external appearance and commercial value of peanuts (Arachis hypogaea L.). With an objective to find genetic solution to the above problems, a peanut mutant with cracking and brown colored seed coat (testa) was identified from an EMS treated mutant population and designated as "peanut seed coat crack and brown color mutant lin...

Cattle are among the most important domesticated bovid species in world, of which Ethiopia possesses large populations adapted to different agro-ecologies and production systems. Though several molecular population genetic studies have been done on Ethiopian indigenous cattle, genomic diversity selection signatures pertinent adaptation local environments yet be comprehensively characterized. He...

Scientists have long known that variation in animal color patterns carry far more than cosmetic signifi cance. Darwin fi rst connected pigmentation with adaptive advantage, noting that male fi nches with bright red plumage enjoyed greater reproductive success than their drab competitors. Explaining why coloration confers such advantages, however, has proved somewhat easier than showing how it a...

Scientists have long known that variation in animal color patterns carry far more than cosmetic signifi cance. Darwin fi rst connected pigmentation with adaptive advantage, noting that male fi nches with bright red plumage enjoyed greater reproductive success than their drab competitors. Explaining why coloration confers such advantages, however, has proved somewhat easier than showing how it a...

Although the physiological genetics of guinea pig coat color has been studied from the point of view of gene interaction in the amount of pigment produced (HEIDENTHAL 1940, RUSSELL 1939, WRIGHT 1941, 1942, 1949, WRIGHT and BRADDOCK 1949) and from a biochemical basis (FOSTER 1952, GINSBURG 1944, RUSSELL 1939), no attack on the problem by means of an investigation of the interaction of the genoty...