Results 201 to 210 of about 13,867,764 (239)
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Multiple canals in a mandibular first premolar. Case report
Australian Dental Journal, 1994AbstractIt has been recorded that the occurrence rate of more than one canal in the mandibular first premolar varies between different races. This report presents the diagnosis and treatment of a mandibular first premolar with multiple root canals in a young male Asian.
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Individual variation in enamel structure of human mandibular first premolars
American Journal of Physical Anthropology, 1985AbstractNine human mandibular first premolars were examined to assess variation in external morphology and enamel structural organization within a tooth type. The relationship of enamel ultrastructure to gross dental morphology was also studied. The teeth were cut in the mesiodistal direction just lingual to the buccal cusp, and etched.
D, Stern, Z, Skobe
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FEM analysis of the mandibular first premolar with different post diameters
Odontology, 2011Several reports have pointed out that endodontically treated teeth can lack strength, and that the teeth can be reinforced using posts. However, it has not been clear how to select posts that meet the needs of most clinical situations, particularly in terms of the post diameter, which has a major influence on the occurrence of root fracture.
Je-Kang, Du +5 more
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Root and canal morphology of mandibular first premolars with radicular grooves
Archives of Oral Biology, 2013To investigate the relation between the radicular groove (RG) and the internal root canal morphology in mandibular first premolars by using micro-computed tomography.A total of 249 extracted mandibular first premolars were collected from a native Chinese population.
Y, Gu, Y, Zhang, Z, Liao
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Spontaneous changes in the mandibular arch following first premolar extractions
The European Journal of Orthodontics, 1982Spontaneous changes of tooth position during the 6 months following first premolar extractions were analysed in the lower arch in 21 cases with marked crowding of the lower incisor segment. The arcogramme technique (Herren et al. 1973) was used for the measurements.
R, Berg, U, Gebauer
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Hemorrhage after a Simple Extraction of the Mandibular Left First Premolar
The Journal of the American Dental Association, 1981A case is reported of a sudden hemorrhage of the tooth socket after a simple extraction; the bleeding was thought to be caused by nitroglycerin medication.
E, Manne, S, Kramer
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Radiographic Evaluation of Root Canal Multiplicity in Mandibular First Premolars
Journal of Endodontics, 2004The purpose of this study was to examine the accuracy of radiographic evaluation of root canal multiplicity in mandibular first premolars in vitro. One hundred thirty-nine extracted human mandibular premolars were used. Buccolingual radiographs were taken, and the number of canals in each tooth was determined on radiographs by four dentists using a ...
Takatomo, Yoshioka +3 more
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American Journal of Orthodontics and Dentofacial Orthopedics, 2007
Estimating the mesiodistal widths of unerupted permanent canines and premolars is an essential aspect of mixed dentition analysis. Several methods are used to predict tooth width. The best methods demonstrate high values of correlation and determination coefficients.
Camilo Aquino, Melgaço +2 more
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Estimating the mesiodistal widths of unerupted permanent canines and premolars is an essential aspect of mixed dentition analysis. Several methods are used to predict tooth width. The best methods demonstrate high values of correlation and determination coefficients.
Camilo Aquino, Melgaço +2 more
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The Rate of Spontaneous Closure at the Site of Extracted Mandibular First Premolars
British Journal of Orthodontics, 1983The speed of spontaneous space closure following the extraction of mandibular first premolars has been monitored in 17 subjects over a 12-month period. Differences between male and female subjects are described and the possible effects of age and second molar eruption are discussed.
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[Analysis of canal morphology of mandibular first premolar].
Shanghai kou qiang yi xue = Shanghai journal of stomatology, 2015To investigate the canal morphology of bilateral mandibular first premolar using cone-beam CT(CBCT).Ninety-seven CBCT images of bilateral mandibular first premolar were selected . The images were analyzed with NNT software for the number and morphology of canal, groove, position of bifurcation and symmetry of bilateral canal classification.The canal ...
Qian, Liao, Jun-li, Han, Xiao, Xu
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