Tooth formation begins with the bud stage during which the dental lamina (derived from epithelial tissue) produces a series of tooth buds along its buccal margin. This is followed by the cap stage in which a coned structure, termed the enamel organ, is formed by an invagination of mesenchymal tissue into the tooth bud. All deciduous teeth and permanent molars are derived from the enamel organ o...

Background: Skin eruption is a disease that it is because of skin necrosis and adolescence and youth depression. The some species of Staphylococcuss are agent of this disease. There isn’t effective drug for curing of this disease. Many of medicinal plants (e.x. Stachys inflata Benth.) have anti- bacterial compounds and they can be used as a drug to cure skin eruption disease. Objective: This r...

BACKGROUND Tooth eruption is a continuous biological process by which developing teeth emerge through the jaws and the overlying mucosa to enter into the oral cavity. Tooth eruption time and sequence are important factors in dental treatment planning, particularly in orthodontics, but also in forensic dentistry to estimate age of a child. Tooth eruption time is influenced by many factors. In th...

[1] A hydrovolcanic eruption near Cone D on the floor of Okmok caldera, Alaska, began on 12 July 2008 and continued until late August 2008. The eruption was preceded by inflation of a magma reservoir located beneath the center of the caldera and ∼3 km below sea level (bsl), which began immediately after Okmok’s previous eruption in 1997. In this paper we use data from several radar satellites a...

Tooth eruption is a localized process in the jaws which exhibits precise timing and bilateral symmetry. It involves resorption and formation of bone on opposite sides of the erupting tooth and these activities depend on the dental follicle, a thin connective tissue investment of the developing and erupting tooth, Biochemical studies have shown that during eruption cells, proteins and enzymes ch...

We report a case of fixed drug eruption caused by fluconazole. A local provocation with 10% fluconazole test in petrolatum applied at the site of a previous lesion of fixed drug eruption reproduced the eruption clinically and histopathologically.

Background: Serious cutaneous eruptions caused by cytarabine are never reported in China. Methods: We admitted a 43-year-old man who was diagnosed with acute non-lymphocytic leukemia, and was given several chemotherapy regimens including cytarabine. And when FLAG regimens were given in the patient, the serious pustular eruption appeared. Results: After the treatment, cutaneous eruption was grad...

Eruption disorders are numerous varying from delayed to complete failure of eruption. Primary failure of eruption (PFE) is a rare condition that involves arrested eruption of teeth with the absence of local or general contributory factors. Another rare and clinically challenging phenomenon is canine transmigration which is the intra-osseous movement of impacted canines across the midline. This ...

Eruption pattern of permanent teeth in Delhi boys was studied in 1800 well nourished children age 5-14 years. Relationship of height, weight and sexual maturity with eruption of teeth was calculated. Earliest teeth to appear were lower first molar (5.64 years) followed by lower central incisors (6.02 years), The sequence of eruption in maxilla was first molar, incisors-central then lateral, fir...

This article reviews the infrequently utilized treatment method of forced eruption and how it can serve as an alternative to the sacrifice of the natural root system. Forced eruption can preserve the natural root system and related periodontal architecture, resulting in years of additional service for the patient. It also can maintain adjacent tooth structure while retaining the option for futu...