scholarly journals Three-dimensional position of mandibular third molars and its association with distal caries in mandibular second molars: a cone beam computed tomographic study

2020 ◽  
Vol 24 (9) ◽  
pp. 3265-3273 ◽  
Author(s):  
Yanan Chen ◽  
Jianmao Zheng ◽  
Danna Li ◽  
Zhuwei Huang ◽  
Zijing Huang ◽  
...  
2017 ◽  
Vol 47 (3) ◽  
pp. 149 ◽  
Author(s):  
Priscila Ferreira de Andrade ◽  
Jesca Neftali Nogueira Silva ◽  
Bruno Salles Sotto-Maior ◽  
Cleide Gisele Ribeiro ◽  
Karina Lopes Devito ◽  
...  

2014 ◽  
Vol 08 (03) ◽  
pp. 389-394 ◽  
Author(s):  
Koray Halicioglu ◽  
Mevlut Celikoglu ◽  
Suleyman Kutalmis Buyuk ◽  
Ahmet Ercan Sekerci ◽  
Faruk Izzet Ucar ◽  
...  

ABSTRACT Objectives: The aim was to investigate mandibular third molar (3M)’s maturation in the crossbite and normal sides by two- and three-dimensional analyses using cone beam computed tomography (CBCT). Materials and Methods: A retrospective study was performed using CBCT of 25 patients (16 females and 9 males; mean age: 16.8 ± 2.9 years) with unilateral posterior crossbite. The formation stages and the volume of the mandibular 3Ms were evaluated by means of CBCT data of the patients without knowing the crossbite side of the patients. Results: Statistically no significant differences were found in the development of the 3Ms between the crossbite and the control sides, whereas the volume of 3M was found to be less in the crossbite side than in the normal side (P = 0.021). Conclusions: A volume of 3M was found to be less in the crossbite side than in the normal side.


2013 ◽  
Vol 71 (6) ◽  
pp. 1391-1398 ◽  
Author(s):  
Louise Hauge Matzen ◽  
Jennifer Christensen ◽  
Hanne Hintze ◽  
Søren Schou ◽  
Ann Wenzel

2013 ◽  
Vol 84 (1) ◽  
pp. 38-47 ◽  
Author(s):  
Jae-Kyu Lee ◽  
Pil-Kyo Jung ◽  
Cheol-Hyun Moon

ABSTRACT Objective: To investigate discrepancies in results of facial asymmetry analysis using different cone beam computed tomography (CBCT) image reorientation methods and the effectiveness of soft tissue as a reorientation reference for analysis of facial asymmetry. Materials and Methods: An asymmetric group of 30 patients with 4 mm or more of chin point (menton [Me]) deviation and a symmetric group of 30 patients with less than 4 mm of deviation of Me were chosen as study subjects. Three orientation methods were used to calculate and compare Me deviation values of the 60 subjects. Two methods used only skeletal landmarks for reference, and one method included the soft tissue landmarks around the eye. Preferences of an expert group for the facial midline as determined by each reorientation method were also examined. Results: The examinations showed significant discrepancies in Me deviation values between the three reorientation methods. The expert group showed the greatest preference for the facial midline reorientation method that incorporated soft tissue landmarks of the eye. Conclusions: These study findings suggest that the inclusion of soft tissue landmarks, especially those around the eyes, is effective for three-dimensional CBCT image reorientation for facial asymmetry analysis.


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