1 HISTORY Bunon (1743): First person to propose that removal of deciduous teeth will achieve a better alignment of permanent teeth, in his book “Essay on diseases of teeth”. Kjellgren (1929): First person to suggest the term “serial extraction” for this procedure. Nance (1940): Father of serial extraction philosophy. He presented the technique of progressive extraction. Palsson (1956): Proposed...

introdouction:tooth eruption is recognized as an important aspect of human growth and development. it can be influenced by a number of factors, and it may reflect the general development of a child’s body. the purpose of this study was to determine the age at which the first primary tooth erupted and its relationship with height, weight and head circumference in 3-15-month children in the city ...

Delayed eruption or impaction of permanent teeth is one of the severe problems that can occur during the mixed dentition period. These conditions can occur in any permanent tooth, but the incidence of delayed eruption of the permanent first molars, especially maxillary permanent first molars, is very low. Johnsen found only one case of delayed emergence of a maxillary first molar as a result of...

During April and May 2010 the ash cloud from the eruption of the Icelandic volcano Eyjafjallajökull caused widespread disruption to aviation over northern Europe. The location and impact of the eruption led to a wealth of observations of the ash cloud were being obtained which can be used to assess modelling of the long range transport of ash in the troposphere. The UK FAAM (Facility for Airbor...

background: to determine the mean eruption time of permanent teeth of pakistani children and to evaluate the effects of gender, type of schools, height, weight and body mass index on it. methods: this cross sectional study was conducted from september 2007 to april 2008.  4370 children of ‘just erupted' teeth were obtained from 102 randomly selected schools from 18 towns of karachi, using syste...

Eruption hematoma is a macular elevation in the soft tissue of alveolar mucosa seen nearly during the tooth eruption. Commonly, it does not have any clinical symptoms. In most cases, the black dome shape appearance of eruption hematoma worries parents about malignancy. Since the physicians are often the firsts who examine the affected child, this lett...

introduction: complicated crown- root fractures, extended caries and iatrogenic destruction often result in insufficient sound tooth structures and compromise the biologic width. two common options for re-establishing flap with osseous surgery. although some advantages are related to these two options, but coronal movement of gingival and alveolar bone in orthodontic extrusion, esthetic problem...