scholarly journals Evaluation of Size and Location of a Mental Foramen in the Polish Population Using Cone-Beam Computed Tomography

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Ewa Zmyslowska-Polakowska ◽  
Mateusz Radwanski ◽  
Slawomir Ledzion ◽  
Michal Leski ◽  
Agnieszka Zmyslowska ◽  
...  

Introduction. The mental foramen (MF) is a bilateral opening localized on an anterior surface of the mandible. A precise location as well as well-defined shape, size, and number of the MF is crucial for different clinical dental procedures. The aim of this study was to determine a size and location of the MF in relation to the lower teeth using the cone-beam computed tomography (CBCT) study. Material and Methods. In a group of 201 patients (106 males and 95 females) the CBCT images were performed using the GX CB-500 device (Gendex, USA). Results. No significant differences in values of the horizontal (H) and vertical (V) diameters as well as the H:V ratio on both sides in relation to the age of participants were found. In males both average values of a horizontal diameter (p=0.031) and vertical diameter (p=0.001) were significantly higher on the right side than in the female subgroup, whereas on the left side only an average value of a vertical diameter was significantly higher in men (p=0.006) in comparison to women. Moreover, the H:V ratio was significantly lower in males on the left side (p=0.032). There were no significant relationships between age and gender of the patients (p>0.05) and the type of mental foramen on the right and left sides. Conclusions. The application of the CBCT study enabled a precise determination of the shape, size, and position of the mental foramen in relation to the neighboring anatomical structures on a representative group of the Polish patients. The results obtained may contribute to guidelines for dental procedures including anesthesia of the mental nerve and endodontic, implantology, and dental surgery with regard to the location of mental foramen depending on the sex and age of patients.

2017 ◽  
Vol 7 (2) ◽  
pp. 20
Author(s):  
Seda Falakaloglu ◽  
Artemisa Veis

Aim: Knowledge of the position of the mental foramen is important to prepare strategy when administering regional anesthesia, performing dental surgical procedures, endodontic treatments. Also, it is critical to analyze diameter of mental foramen in sagittal, coronal, and axial images.  The aim of this retrospective study was to determine the diameter of the MF in different planes from CBCT images. Methodology: This study was designed at Department of Endodontics, Dicle University, Diyarbakır, Turkey. One hundred twenty three (67 female, 56 male) CBCT scans that met the study criteria were obtained. All images were obtained from i-CAT (Imaging Sciences International, Hatfield, PA). Data were analyzed using Student’s t-tests and Tukey HSD tests. Results: For the analysis of age, data were divided into four groups: 12–17, 18–29, 30–49, and ≥50 years. The data were also divided into two groups by gender. Axial and coronal image measurements were also divided into right and left. There was a statistical difference compared with females and males (p<0.05). In the coronal plane, the right region showed significant differences in measurements between the groups (p<0.05). In the axial plane, there was no statistically significant difference between them (p>0.05). The differences between the groups in the left region in the axial plane measurements were significant (p<0.05). Conclusions: Using CBCT imaging superimposition of anatomical structures can be eliminated. It is important that determine that the size of the mental foramen. This study is a retrospective study using CBCT from patient and find that the size of the mental foramen. How to cite this article: Falakaloglu S, Veis A. Determining the size of the mental foramen: A cone-beam computed tomography study. Int Dent Res 2017;7:20-25. 


2020 ◽  
Vol 16 (3) ◽  
pp. 90-95
Author(s):  
Irina Shelegova ◽  
Artur Heigetyan ◽  
Dar'ya Vazhenina ◽  
Natal'ya Nurieva

Subject. The article discusses the possibilities of cone-beam computed tomography in the study of the anatomy of the mental foramen: size, shape, topography, as well as the optical density of bone tissue at the mental foramen. The goal is to investigate the size, shape and topography of the mental foramen, as well as the optical density of bone tissue in it using cone-beam computed tomography. Methodology. The computed tomograms of the lower jaws of 26 patients were analyzed, according to which the vertical and horizontal dimensions of the mental openings were measured on the right and left, the number and sizes of additional mental openings, their location according to the Tebo and Telford classification, and the bone mineral density under the mental opening were determined. Statistical analysis was carried out using Microsoft Excel, Windows 9. Results. The resulting average dimensions of the right (4.01x3.93 mm) and left (3.81x3.95) mental holes confirm the results of more extensive studies done earlier. In the first case (1.9 %), an anatomical variation of the mental opening was revealed: 3 holes with dimensions 2.1×2.1 mm, 2.0×0.9, and 1.9×2.4. The symmetrical location of the chin foramen was found in 15 patients (57.7 %). In most cases, types III (25 %) and IV (53.84 %) of the location of the mental opening were identified. The average optical density of bone tissue under the mental foramen on the right side was 1618.9±145.1 HU, on the left ― 1571.64±159.64. There were no significant differences in the optical density of bone tissue for types II―IV of the location of the mental foramen. Conclusions. A significant variability in the topography of the mental foramen was revealed, in this regard, methods of mental anesthesia with a personalized approach, for example, the method of anesthesia of the intraosseous part of the chin nerve, are becoming relevant (authors Rabinovich S.A., Vasiliev Yu.L., Tsybulkin A.G.). High values of the optical density of bone tissue at the mental foramen confirm the ineffectiveness of diffusion of anesthetics through the cortical plate.


NEMESIS ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 1-20
Author(s):  
Raphael Olszewski ◽  
Stéphanie Theys

Objective: Pediatric facial arteriovenous malformations (AVMs) are rare but can cause potentially fatal hemorrhages during dental procedures and oral surgery. In this article we present a systematic review of the medical open access literature on pediatric facial AVM. Case report: We illustrate our purpose with clinical dental use of cone beam computed tomography (CBCT) in pediatric embolized facial AVM to define the presence and the position of the right upper impacted canine. Conclusions: We advocate the use of CBCT as additional imaging tool in the follow-up of pediatric dentomaxillofacial AVM, and for depiction of dentoalveolar structures that are inaccessible by conventional dental radiography.


2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Mahnaz Sheikhi ◽  
Mitra Karbasi Kheir ◽  
Ehsan Hekmatian

Background. Mental foramen is important in surgical operations of premolars because it transfers the mental nerves and vessels. This study evaluated the variations of mental foramen by cone-beam computed tomography among a selected Iranian population.Materials and Methods. A total number of 180 cone-beam computed tomography projections were analyzed in terms of shape, size, direction, and horizontal and vertical positions of mental foramen in the right and left sides.Results. The most common shape was oval, opening direction was posterior-superior, horizontal position was in line with second premolar, and vertical position was apical to the adjacent dental root. The mean of foremen diameter was 3.59 mm.Conclusion. In addition to the most common types of mental foramen, other variations exist, too. Hence, it reflects the significance of preoperative radiographic examinations, especially 3-dimensional images to prevent nerve damage.


Author(s):  
Esraa Ahmed Eid ◽  
Fatma Mostafa El-Badawy ◽  
Walaa Mohamed Hamed

Abstract Background The proximity of the maxillary sinus floor to the maxillary molar roots increases the probability of oroantral communication on conducting any surgical or endodontic procedure in the involved area. The aim of this study is to evaluate the relationship between each maxillary molar root and maxillary sinus floor using cone beam computed tomography. Predicting the probability of protrusion of each root into the sinus will consequently predict the probability of occurrence of the oroantral fistula in a sample of the Egyptian population. Results The total number of roots located outside the sinus was 121 (35.3%), while those contacting the sinus floor were 80 (23.3%) and those intruded the sinus were 141 (41.2%). The percentage of root intrusion into the sinus in males (56.9%) was significantly (p = 0.01) higher than females (42.9%). The probability of root intrusion in the left molars (54.2%) was non-significantly (p = 0.067) higher than that of the right side (44.3%). As for the type of tooth, the second molar showed the highest probability of root intrusion into the sinus (55.3%) followed by the third molars (52.6%) then the first molars (40.9). According to the type of root, the mesiobuccal root showed the highest probability of intrusion into the sinus (50.9%) followed by the palatal root (49.1%) then the distobuccal root (47.4%). However, the difference in both type of tooth and type of root was statistically non-significant (p = 0.051 and 0.869 respectively). As for the individual root with the highest probability of intrusion, the mesio-buccal root of the right third molar is the most frequent root to intrude the sinus (71.4%) and the mesio-buccal root of the right first molar is the least frequent (22.7%). Conclusions In a sample of the Egyptian population, males exhibit higher probability of root protrusion into the sinus than females. The side and type of tooth are of higher impact on the probability of its intrusion into the sinus compared to the type of root. Left second molars are at a higher risk of oroantral communications on surgical or endodontic procedures compared to other molars due to its highest probability of intrusion into the sinus.


2014 ◽  
Vol 13 (2) ◽  
pp. 122
Author(s):  
Lusi Epsilawati ◽  
Suhardjo Sitam ◽  
Sam Belly ◽  
Fahmi Oscandar

Inflammation of the pulp is most common and difficult to diagnose. For it radiographs is necessary. One attempt to do is to assess its histogram and density. Radiography equipment that has the ability to analyze is cone beam computedtomography (CBCT). The purpose of this study is to analyze radiograph of the pulp chamber histogram: peak value,grayscale and trends, as well as the density on the condition reversible and irreversible pulpitis condition. The populationof this descriptive study is secondary data of CBCT-3D radiographs during 2012-2013. Selected sample of 75 data isreversible pulpitis, irreversible pulpitis 80 data, as well as 20 normal condition data as control. Data were analyzed byone way ANOVAand are presented in tables and graphs. The results showed that the value of the histogram under normalconditions showeda different significance for both the peak value of the reversible or irreversible pulpitis (p= 0.01). It isdifferent with a grayscale value, showed no significant different between normal with reversible pulpitis (p =0.997) and significantly different between normal and pulpitis reversible against pulpitis irrebversible (p= 0.03-0.01). There is a growing trend change is on the right direction of reversible and irreversible pulpitis. It was concluded that the irreversiblepulpitis, density and histogram shows the direction of more luscent compared with normal and reversible pulpitisconditions.


2018 ◽  
Vol 12 (03) ◽  
pp. 410-416 ◽  
Author(s):  
Prunella Ubung Deng ◽  
Mohamad Syahrizal Halim ◽  
Sam'an Malik Masudi ◽  
Saaid Al-Shehadat ◽  
Basaruddin Ahmad

ABSTRACT Objective: The aim of this study is to investigate the variations in the number of root and canal in the mandibular first permanent molars (MFPMs) teeth in East Coast Malaysian population using cone-beam computed tomography (CBCT). Materials and Methods: CBCT images which show MFPMs recorded in HUSM Dental Clinic between January 2015 and June 2016 was obtained and analyzed for their number of roots and canals. A total of 208 CBCT images of MFPMs were collected; 118 patients had unilateral molars and 90 patients had bilateral molars. The following observations were made: (1) root number; (2) number of canals per root; and (3) comparisons of number of roots and canals according to gender, ethnicity, and position. Results: The majority of cases of bilateral MFPM had the same number of roots (95.6%, 95% confidence interval [CI]: 89.01%, 98.78%) on both the right and left side and only 4 cases (4.4%, 95% CI: 1.22%, 10.99%) had 3 roots on the right and 2 roots on the left sides. The majority of cases had the same number of canals on both sides (66.7%, 95% CI: 55.95, 76.26%) and 33.3% (95% CI: 23.74%, 44.05%) with unequal number of canals. The occurrence of the number of canals was not independent of the sides of the arch (P < 0.001) and there was statistically significantly greater proportion of cases who had greater number of canals on the right side than the left (P = 0.03). The prevalence of right single-rooted MFPM was very small at 0.3% (n = 1) in a Malay male (95% CI: 0.00, 1.83) and the most prevalent was two roots first molar (88.4%). The number of roots was not associated with sex or ethnic group (P > 0.05). The MFPM with a single root was found to have only one mesial canal. For two rooted MFPM, the most prevalent occurrence was two canals at the mesial and one canal at the distal roots (59%); followed by single canals in each mesial and distal (21%) and double canals per root (18%). Three roots MFPM have either single or double canals in the mesial root and double canals in the distal root. Conclusions: The majority of population in the East Coast region of Malaysia has two roots and three root canals in their MFPMs. There was no difference in the number of roots between gender and ethnic and canals between ethnic.


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