نتایج جستجو برای: primary central incisor
تعداد نتایج: 1085556 فیلتر نتایج به سال:
Rmoval of abscessed primary teeth has been sug;ested because they have been shown in some tudies to create developmental defects with underlying permanent successors.' However there might be a rationale for attempting pulp therapy in some carefully selected cases, i.e., abscessed incisor prior to eruption of primary cuspids, as space closure may occur. In necrotic immature teeth, the wide and f...
Dilaceration is one of the causes of permanent maxillary incisor eruption failure. It is a developmental distortion of the form of a tooth that commonly occurs in permanent incisors as result of trauma to the primary predecessors whose apices lie close to the permanent tooth germ. We present a case of post-traumatic impaction of a dilacerated central maxillary left incisor in a young patient wi...
Developmental disturbances of permanent teeth can result from trauma to primary teeth because of the proximity of the root of the primary teeth to their permanent successors. We describe the case of a 14-month-old boy who was referred to the baby clinic of the School of Dentistry, Universidad Estadual Paulista, Araçatuba, Brazil, after sustaining a severe trauma that led to intrusion of the rig...
In 1976 Rappaport et al. introduced the term Monosuperocentroincisivodontic dwarfism to describe patients who exhibit a solitary maxillary central incisor in both dentitions in conjunction with growth retardation.1 The frequency of congenitally missing maxillary primary central incisors has not been reported, but the frequency of congenitally missing maxillary permanent central incisors is rare...
background: esthetic demands among patients have led to the introduction of tooth-colored restorations. composite resins bond to enamel applying acid etch technique. total etch adhesion systems are still considered as golden standard among bonding systems. however, clinicians have tendency towards using adhesive systems with a simplified application procedure. the aim of the present study is to...
Selection of anterior teeth depends mainly on Leon William theory that hypothesizes the presence of harmony between the face and inverted central incisor forms. If this theory is approved mathematically then the central incisor form and width could be predicted and calculated with acceptable precision in clinical practice. The purpose of this study was to predict the tooth form and mesiodistal ...
the aim of this study was to report the endodontic management of right maxillary central incisor having two canals with vertucci canal configuration type iv . internal morphology of root canals is variable and often complex. therefore, to achieve a technically satisfactory endodontic outcome, the clinician must have adequate knowledge of the internal canal morphology and its variations in order...
The purpose of this study involving a sample of children with single central incisor crossbite was to determine the relationship between clinical crown lengths of the crossbite and noncrossbite mandibular incisors, incisor irregularity, and orthodontic correction of the crossbite. In addition, for comparison, the normal maturational change in position of the labial gingival margin of mandibular...
This article describes esthetic improvement in a patient with a missing maxillary left central incisor. Space analysis of the anterior dentition showed that minor tooth rearrangement was needed. Optimal space distribution for restorations was attained by orthodontic treatment. Through transforming tooth shape with porcelain laminate veneers, the maxillary left lateral incisor was transformed in...
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