نتایج جستجو برای: dental enamel

تعداد نتایج: 166985  

Journal: :Pediatric dentistry 1996
W K Seow

There have been no previous studies on dental maturation of prematurely born, very low birthweight (< 1500 g, VLBW) Caucasian children. This study investigated dental development and prevalence of enamel defects in a group of 55 VLBW children (mean age at dental examination 7.7 +/- 2.2 years, mean birthweight 1203 +/- 240 g, and mean gestational age 29.8 +/- 2.4 weeks) compared to 55 normal bir...

2014
Xiao-quan Mao

INTRODUCTION In general, enamel pearls are found in maxillary molars as a small globule of enamel. However, this case report describes an enamel pearl with a prolate spheroid shape which is 1.8mm wide and 8mm long. The different type of enamel pearl found in my clinic has significantly improved our understanding of enamel pearl etiology and pathophysiology. CASE PRESENTATION A 42-year-old Han...

2015
Dhvani Bhesania Ankit Arora Sonali Kapoor

Numerous cases of enamel renal syndrome have been previously reported. Various terms, such as enamel renal syndrome, amelogenesis imperfecta and gingival fibromatosis syndrome, and enamel-renal-gingival syndrome, have been used for patients presenting with the dental phenotype characteristic of this condition, nephrocalcinosis or nephrolithiasis, and gingival findings. This report describes a c...

Journal: :Schweizer Monatsschrift fur Zahnmedizin = Revue mensuelle suisse d'odonto-stomatologie = Rivista mensile svizzera di odontologia e stomatologia 2013
Ekaterina Rakhmatullina Barbara Beyeler Adrian Lussi

This in vitro study investigated the erosion-inhibiting properties of dental rinses during erosion in the presence of the salivary pellicle. The erosion inhibition by a Sn/F containing dental rinse (800 ppm Sn2+, 500 ppm F –, pH = 4.5) was compared with a fluoridated solution (500 ppm F –, pH = 4.5) and water(control). Calcium release and enamel softening were significantly reduced among enamel...

Journal: :Brazilian dental journal 2010
Cecilia Pedroso Turssi Danielle Furtado Messias Silmara Milori Corona Mônica Campos Serra

This study ascertained whether under dental erosion models that closely mimics the real-life situation enamel and root dentin from bovine origin would be reliable substitutes for human counterparts. Through a 2x2 crossover design, in a first trial, 14 volunteers wore a palatal device containing slabs of bovine and human enamel. Half of the participants ingested (4x daily, for 10 days) orange ju...

Journal: :American journal of primatology 2010
Alison A Elgart

The African apes possess thinner enamel than do other hominoids, and a certain amount of dentin exposure may be advantageous in the processing of tough diets eaten by Gorilla. Dental wear (attrition plus abrasion) that erodes the enamel exposes the underlying dentin and creates additional cutting edges at the dentin-enamel junction. Hypothetically, efficiency of food processing increases with j...

Journal: :The International journal of developmental biology 2006
Eva Matalova Paul T Sharpe Saquib A Lakhani Kevin A Roth Richard A Flavell Jana Setkova Ivan Misek Abigail S Tucker

Tooth morphogenesis is accompanied by apoptotic events which show restricted temporospatial patterns suggesting multiple roles in odontogenesis. Dental apoptosis seems to be caspase dependent and caspase-3 has been shown to be activated during dental apoptosis.Caspase-3 mutant mice on different genetic backgrounds were used to investigate alterations in dental apoptosis and molar tooth morphoge...

2011
Omolola O. ORENUGA O. ODUKOYA

Dental enamel hypoplasia; Prevalence; Eti ology, Objecti ve: This epidemiological study of dental enamel defects in a group of Nigerian school children assessed the prevalence, distributi on and associated eti ological factors of developmental defects of enamel. Method: The study subjects consisti ng of 2015 school children, (1088 males and 927 females) in the age range 4 to 16 years were rando...

Journal: :Journal of human evolution 2013
James D Pampush Ana C Duque Brittany R Burrows David J Daegling William F Kenney W Scott McGraw

Traditionally, thick enamel has often been used to infer durophagy (i.e., hard nut and seed consumption) in extinct hominins. These inferences are based on the hypothesis that thick enamel is primarily an adaptation to prevent tooth fracture or chipping resulting from high-stress loads produced during the mastication of large hard foods. An alternative view argues that thick enamel may aid in m...

2017
Michael Knösel Roberto Vogel Paulo Sandoval

Purpose: To provide an overview of different indications suitable for treatment with the technique of resin infiltration (Icon, DMG), such as white-spot lesions (WSL), enamel fluorosis, and molar-incisor hypomineralisation (MIH), and to propose a valid and strategy feasible in dental surgeries for screening of dental color improvement and -stability. Method: A non-systematic review of the liter...

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