scholarly journals Three‐dimensional computed topography analysis of a patient with an unusual anatomy of the maxillary second and third molars

2011 ◽  
Vol 3 (4) ◽  
pp. 225-228 ◽  
Author(s):  
Jin Zhao ◽  
Yan Li ◽  
Zhi‐wei Yang ◽  
Wei Wang ◽  
Yan Meng
Keyword(s):  
Three Dimensional ◽  
Third Molars ◽  
Topography Analysis ◽  
Computed Topography

scholarly journals Nonsurgical and nonprosthetic camouflage treatment of skeletal Class II open bite with bilaterally missing lower first molars

2018 ◽  
Vol 89 (3) ◽  
pp. 505-517. ◽  
Author(s):  
Tung Nguyen ◽  
Eui Seon Baek ◽  
Soonshin Hwang ◽  
Kyung-Ho Kim ◽  
Chooryung J. Chung
Keyword(s):  
Treatment Outcome ◽  
Three Dimensional ◽  
Class Ii ◽  
Open Bite ◽  
Third Molars ◽  
Second Molar ◽  
Skeletal Class ◽  
Long Term Stability ◽  
Skeletal Class Ii

ABSTRACT This report illustrates the successful nonsurgical and nonprosthetic camouflage treatment of a skeletal Class II open bite malocclusion combined with missing mandibular first molars bilaterally. In the mandible, the second and third molars were uprighted and protracted, substituting for the missing first molars. In the maxilla, anterior bodily retraction and full-arch intrusion were achieved following premolar and second molar extraction, which also induced autorotation of the mandible. The treatment outcome and prognosis were confirmed with three-dimensional superimposition techniques, along with long-term stability.

scholarly journals Does a Preoperative Cone Beam Ct Reduce Complication Rates in the Surgical Removal of Complex Lower Third Molars? A Retrospective Study Including 486 Cases

2020 ◽  
Author(s):  
Jan Klatt ◽  
Tony Sorowka ◽  
Lan Kluwe ◽  
Ralf Smeets ◽  
Martin Gosau ◽  
...  
Keyword(s):  
Neurological Disorders ◽  
Three Dimensional ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Cone Beam ◽  
Surgical Removal ◽  
Radiographic Imaging ◽  
Third Molars ◽  
Nerve Bundle ◽  
Neurological Damage

Abstract BackroundThis study was designed to analyse the value of preoperative Cone Beam CTs prior to the surgical removal of complex lower third molars. Furthermore, the aim was to assess injuries to the inferior alveolar nerve bundle and postoperative neurological disorders depending on the position of the lower third molar and theinferior alveolar nerve bundle.MethodsPreoperative Cone Beam CTs and Orthopantomographs of 324 patients were analysed concerning the location of the lower third molars in relation to the mandible and the inferior alveolar nerve bundle. Surgery protocols of all patients who underwent the surgical removal of at least one complex lower third molar were analysed concerning patient data, length of surgery, intraoperative haemorrhage, intraoperative exposure of the inferior alveolar nerve bundle, postoperative swelling and postoperative neurological disorders. The data was then compared to data from international studies.ResultsIn all 324 patients a permanent neurological damage was not found. Temporary neurological damage was recorded in 13 cases (2.6%). A caudal nerve position with no measurable distance to the root of the lower third molar was associated with the highest risk of a temporal neurological damage. A vestibular touching nerve route also correlated with postoperative sensitivity impairment.ConclusionsThree-dimensional radiographic imaging,in our patient group, does not significantly affect the risk for complications during the surgical removal of complex lower third molars,but allows the surgeon to choose the best surgical approch for a fast and most atraumatic operation. Therefore, it should only be utilized for risk assessment, especially in cases of symptom-free lower third molars. A preoperative orthopantomogram still can be accepted as standard for radiographic imaging. The interpretation of the orthopantomogram may lead to the indication for three-dimensional imaging, if signs of increased surgery risk are present.

scholarly journals Three-dimensional analysis of impacted maxillary third molars: A cone-beam computed tomographic study of the position and depth of impaction

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 ◽  
...  
Keyword(s):  
Dimensional Analysis ◽  
Three Dimensional ◽  
Cone Beam ◽  
Third Molars ◽  
Computed Tomographic

Questionnaire survey on methods of determining the relationship of the mandibular canal and third molars

2018 ◽  
Vol 1 (1) ◽  
pp. 44-50
Author(s):  
Apeksha Mainali ◽  
A Vaidya
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Panoramic Radiograph ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Third Molars ◽  
Dental Practitioners ◽  
Relationship Of ◽  
The Relationship

Background: Clinicians should assess and monitor mandibular canal (MC) to achieve an uneventful and successful final result. Two dimensional techniques like panoramic radiography, intra oral periapical radiographs are commonly used for assessment of MC, along with three dimensional techniques like cone beam computed tomography (CBCT).Objectives: To assess the radiologic modalities and assessment criteria used by clinically practicing dental surgeons when determining the proximity of MC to third molars.Method: A questionnaire based study was carried out among national and international oral maxillofacial surgeons and general dental practitioners. Data were fed to SPSS software version 21 for descriptive statistics.Result: Most of the participants (54.7%) in the study preferred combination of panoramic radiograph and CBCT for determining the relationship of mandibular canal and third molars measures.Conclusion: Initial screening can be carried out using panoramic radiograph which is a popular method in determining the relation between the third molar and mandibular canal in spite of some limitations. Cone Beam Computed Tomography is an important three-dimensional imaging technique which is a preferred method amongst most dental surgeons.Journal of BP Koirala Institute of Health Sciences, Vol. 1, No. 1, 2018, page: 44-50

scholarly journals Three-dimensional evaluation of the mandibular third molars’ development in unilateral crossbite patients: A cone beam computed tomography study

2014 ◽  
Vol 08 (03) ◽  
pp. 389-394 ◽  
Author(s):  
Koray Halicioglu ◽  
Mevlut Celikoglu ◽  
Suleyman Kutalmis Buyuk ◽  
Ahmet Ercan Sekerci ◽  
Faruk Izzet Ucar ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Third Molar ◽  
Cone Beam ◽  
Third Molars ◽  
Normal Side ◽  
Posterior Crossbite ◽  
Mandibular Third Molar ◽  
Mandibular Third Molars

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.

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