Results 241 to 250 of about 74,721 (295)

Morphological Evaluation of Maxillary Premolar Canals in Iranian Population: A Cone-Beam Computed Tomography Study

E -journal of dentistry, 2020
Statement of the Problem: A thorough knowledge of the morphological and anatomical variations of root canal system can help identify all root canals, adequate instrumentation, and consequently leads to a successful endodontic treatment.
B. Asheghi, Nariman Momtahan, S. Sahebi, Maryam Zangoie Booshehri   +3 more
semanticscholar   +1 more source

Differential premolar extractions

American Journal of Orthodontics and Dentofacial Orthopedics, 1997
The primary object of this research project was to establish the amount of incisor retraction to be expected during full fixed mechanotherapy and to generate regression models that could provide more accurate prediction of each of the three most popular combinations of symmetrical premolar extractions, where extraoral anchorage would not be used ...
C L, Steyn, R J, du Preez, A M, Harris
openaire   +2 more sources

Taurodontism in premolars

Oral Surgery, Oral Medicine, Oral Pathology, 1993
Taurodontism is not a dental anomaly that affects only the molars. In a review of 379 premolars extracted for different pathologic reasons, three cases of taurodontism were found. The three cases were in upper premolars and were studied anatomically and radiographically.
R, Llamas, A, Jimenez-Planas
openaire   +2 more sources

Mandibular premolar differentiation

European Journal of Oral Sciences, 1994
The authors present a method for differentiating between human mandibular premolars: P1 inf and P2 inf. The material with which the method was developed consisted of 260 stone casts. On these, both premolars were present and were intact on at least one side. The study models represented 131 girls and 129 boys, mean age 14.6 yr. In a comprehensive pilot
Carlsen, O., Alexandersen, V.
openaire   +2 more sources

Root and canal morphology of maxillary premolar teeth in an Egyptian subpopulation using two classification systems: a cone beam computed tomography study

International Endodontic Journal, 2018
AIM To investigate the number of roots and root canal configurations using two coding systems and the root canal diverging and merging levels in extracted maxillary premolars in an Egyptian subpopulation using cone beam computed tomography (CBCT ...
S. Saber, M. Ahmed, M. Obeid, H. M. Ahmed   +3 more
semanticscholar   +1 more source

Upper First Premolar Positioning Evaluation for the Stability of the Dental Occlusion: Anatomical Considerations

The Journal of craniofacial surgery (Print), 2018
The present study aimed to find the proper distorotation of the upper first premolar to achieve the therapeutic ideal advocated for the stability of the human occlusion.
S. Sambataro, G. Cervino, L. Fiorillo, M. Cicciu'   +3 more
semanticscholar   +1 more source

Impacted Premolars

Dental Update, 2005
Tooth impaction is not uncommon among the population. Its management is important aesthetically and functionally to the patient. Treatment ranges from regular review, extraction of the primary tooth, surgical exposure of the impacted tooth, with or without orthodontic traction, auto-transplantation to its surgical removal. Any decision taken should be
openaire   +2 more sources

Second premolar serial extraction

American Journal of Orthodontics, 1976
Serial extraction of mandibular second premolars should be considered if they are impacted or in cases with moderate arch length deficiency combined with an absence of dentofacial protrusion. The favorable dental changes associated with this approach greatly minimize future orthodontic treatment complexity and time.
D R, Joondeph, R A, Riedel
openaire   +2 more sources

Recurring mandibular supplemental premolars

Oral Surgery, Oral Medicine, Oral Pathology, 1970
W ith the increasing tendency to take complete dental roentgenograms as a part of the oral examination, it has been found that supernumerary or supplemental premolars are more common than former estimates would indicate. This can be accounted for by the fact that 75 per cent of all supernumerary or supplemental premolars are impacted and generally ...
G A, Morgan, P R, Morgan, S A, Crouch
openaire   +2 more sources

Fused supernumerary mandibular premolar

Journal of Dentistry, 1974
Abstract Fusion of two supernumerary teeth in the mandibular right premolar region is reported in a 22-year-old male in whom bilateral supernumerary premolar teeth were incidentally discovered on X-rays taken for conservative dental care.
openaire   +2 more sources