Expansion of permanent first molars with rapid maxillary expansion appliance anchored on primary second molars
نویسندگان
چکیده
منابع مشابه
Morphometric analysis of developing crowns of maxillary primary second molars and permanent first molars in humans.
The purpose of this study was firstly to characterize the changes occurring in size and form of the mineralizing maxillary second primary molar and first permanent molar crowns, and secondly to determine if similar changes in size and form characterize enamel apposition in the crowns of these teeth. Twenty-five primary second molars and 20 maxillary permanent first molars at various stages of d...
متن کاملEffect of extraction of permanent first molars on the development and eruption of third molars
BACKGROUND AND AIM: It is required in many young patients that permanent first molars (PFMs) be extracted due to poor prognosis. This study investigates whether the extraction of such teeth is effective on the development of third molars and even their crown and root morphologies.METHODS: A total of 7000 panoramic radiographs were evaluated and 128 radiographs showing a history of extraction of...
متن کاملInvestigation of the endodontic space in maxillary first permanent molars.
The purpose of the investigation was to establish the exact number of root canals in the maxillary first permanent molar, their direction, type and relation, based upon a large number of random samples. Randomly chosen 443 maxillary first permanent molars (221 left and 222 right) were investigated with the aim to get more knowledge into the morpho logy of the endodontic space. One canal in the...
متن کاملDevelopment of caries in permanent first molars adjacent to primary second molars with interproximal caries: four-year prospective radiographic study.
PURPOSE This study investigated the effect of the primary second molars' distal surface caries on the incidence of the permanent first molars' mesial surface caries in 613 paired tooth surfaces of children ages 6 to 8 years at baseline examination. METHODS Proximal caries and its progression were diagnosed by bite-wing radiographs taken at a 1-year interval over a period of 4 years. The perma...
متن کاملFailure of eruption of first and second permanent molars.
Failure of eruption of permanent molars is an uncommon condition with a range of possible causative factors. This retrospective study of 35 pediatric subjects assesses the influence of these factors in the prognosis. The study aims to broaden our understanding of an abnormality, which has a considerable clinical impact, and proposes a treatment protocol for the management of these patients.
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ژورنال
عنوان ژورنال: Journal of Clinical and Experimental Dentistry
سال: 2018
ISSN: 1989-5488
DOI: 10.4317/jced.54585