Study of Relative Position of the Mental Foramen in Different Age Groups: An Institutional Based Study

The anterior loop of the inferior alveolar nerve is a sensitive anatomical feature that should be taken into account during installation of dental implants anterior to the mental foramen. This study was conducted to explore the controversy regarding prevalence and length. A total of 452 mandible quadrants of 234 patients (age: 50.1 ± 13.3 years, 113 males, 121 females) were studied using cone-beam computerized tomography. After reconstructing axial, frontal, and sagittal slices, the region between the most anterior point on the mental foramen and the most anterior part of the mandibular nerve was inspected for signs of anterior loop presence. If positive, the length of the anterior loop was measured in mm as the distance between the anterior border of mental foramen and the anterior border of the loop. Prevalence and length of the anterior loop were compared statistically between sexes and age groups. The anterior loop was observed in 106 quadrants (23.5% of 451 quadrants) of 95 patients (40.6% of 234 patients), of whom 11 had bilateral anterior loops. Prevalences were similar in males (41%) and females (39%, chi-square P =.791). The mean anterior loop length was 2.77 ± 1.56 mm (95% CI: 2.5–3.1 mm), without significant sex (regression beta = −0.159, P = .134) or age (beta = −0.059, P = .578) differences. The anterior loop might exist in about 40% of patients, regardless of their gender. The mean safe anterior distance from the anterior loop is about 3 mm + (2.5–3.1 mm) = 5.5–6.1 mm, regardless of age.

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The evaluation of visibility of mandibular anatomic landmarks using panoramic radiography

International Dental Research ◽

10.5577/intdentres.2019.vol9.no2.6 ◽

2019 ◽

Vol 9 (2) ◽

pp. 69-77

Author(s):

Gözde Serindere ◽

Ceren Aktuna Belgin

Keyword(s):

Panoramic Radiography ◽

Age Groups ◽

Mandibular Canal ◽

Mental Foramen ◽

Anatomical Landmarks ◽

Anatomic Landmarks ◽

Dental Surgery ◽

Incisive Canal ◽

Mandibular Foramen ◽

Panoramic Radiographs

Objective: Mandibular canal, mandibular foramen, mental foramen and insisiv canal are so important anatomical structures for dental surgery. The aim of this study was to evaluate the visibility of these important landmarks in different age groups and to compare the visibility in dentulous group with edentulous group on panoramic radiographs. Methods: The panoramic radiographs of 500 patients (237 males; 263 females; mean age; 39.2) were evaluated for this study. The visibility of anatomical landmarks were analyzed in the radiographs and scores were noted. The data obtained in this study were analyzed by SPSS 21 package program. The value of p<0.05 was considered statistically significant. Results: Out of 500 radiographs, mandibular canal, mandibular foramen, mental foramen and incisive canal was visible in 89.8%, 88%, 80.6% and 12.8%, respectively. 23 (4.6%) patients had total tooth loss. The visibility of the anatomical landmarks was observed in groups below 25 years old. Conclusion: Panoramic radiographs provide useful information on the visibility of anatomical landmarks. However, the use of 3D imaging methods before surgical procedures will give more accurate results. How to cite this article: Serindere G, Aktuna Belgin C. The evaluation of visibility of mandibular anatomic landmarks using panoramic radiography. Int Dent Res 2019;9(2):69-77. Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Assessment of Panoramic Radiomorphometric Indices of the Mandible in a Brazilian Population

ISRN Rheumatology ◽

10.5402/2011/854287 ◽

2011 ◽

Vol 2011 ◽

pp. 1-5 ◽

Cited By ~ 7

Author(s):

Maria Beatriz C. C. Alonso ◽

Arthur R. G. Cortes ◽

Angela J. Camargo ◽

Emiko S. Arita ◽

Francisco Haiter-Neto ◽

...

Keyword(s):

Statistical Analysis ◽

Age Groups ◽

Mental Foramen ◽

Radiographic Images ◽

Panoramic Radiographs ◽

Cortical Width ◽

Age Related ◽

Two Indices ◽

Age Related Changes

The aim of this study was to evaluate radiomorphometric indices in dental panoramic radiographs in order to identify possible interrelationships between these indices and the sex and age of the patients analyzed. The study included 1287 digital panoramic radiographic images of patients that were grouped into five age groups (1 = age 17–20; 2 = age 21–35; 3 = age 36–55; 4 = age 56–69; 5 = over age 70). Two indices—cortical width at the gonion (GI) and below the mental foramen (MI)—were measured bilaterally in all panoramic radiographs. Statistical analysis was performed with Kruskal-Wallis and Mann-Whitney tests (alpha = 0.05). Results for the indices measurements showed significant differences among patient age groups of both sexes, considering that groups 4 and 5 presented lower values for the cortical width of both indices. The present paper supports the role of sex- and age-related changes in mandibular radiomorphometric indices in identifying skeletal osteopenia.

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Evaluation of Mental Foramen Position from Panoramic Dental Radiographs

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1551 ◽

2014 ◽

Vol 15 (4) ◽

pp. 399-402

Author(s):

Muhammed Ajmal

Keyword(s):

Age Groups ◽

Panoramic Radiograph ◽

Time Frame ◽

Mental Foramen ◽

Chi Square ◽

Study Population ◽

Mandibular Region ◽

Dental Radiographs ◽

Superior Margin ◽

Bone Height

ABSTRACT Objective Evaluate the position of mental foramen by measuring the vertical bone height from digital panoramic radiograph and also the variation of resorption pattern by gender and extraction time frame. Materials and methods/study design Digital panoramic radiographs of 500 patients were reviewed. The study population was divided into four age groups aged 30 to 70 years as (30-39, 40-49, 50-59 and 60-70 years of age). Radiographic Position of mental foramen was evaluated in each panoramic radiograph by measuring the distance from the marginal bone to the mental foramen was being measured. Measurements were taken in each radiograph using Cliniview software. The data collected was subjected to statistical analysis using paired students t-test and chi-square tests. Results and conclusion In our study it was noted that the vertical measurements calculated from the superior margin of mental foramen to the crest of alveolar ridge were greater in edentulous men than in women. This measurement decreased significantly with age. We have noted here that resorption pattern between males and females can be used as an early diagnostic tool and for implant analysis. Studies comparing right and left side edentulous mandibular region are needed for further confirmation. How to cite this article Ajmal M. Evaluation of Mental Foramen Position from Panoramic Dental Radiographs. J Contemp Dent Pract 2014;15(4):399-402.

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Evaluation of the position of lingula mandible, mental foramen and lingual foramen of individuals in the 7-17 age groups via CBCT

Clinical and Experimental Health Sciences ◽

10.33808/clinexphealthsci.702860 ◽

2021 ◽

Author(s):

Duygu GÖLLER BULUT ◽

Seval BAYRAK

Keyword(s):

Age Groups ◽

Mental Foramen ◽

Lingual Foramen

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Morphometric and Morphological Study of Mental Foramen in the Malaysian Population: Anatomy and Forensic Implications

IIUM Medical Journal Malaysia ◽

10.31436/imjm.v16i2.324 ◽

2020 ◽

Vol 16 (2) ◽

Author(s):

Aspalilah Alias ◽

AbdelNasser Ibrahim ◽

Siti Noorain Abu Bakar ◽

Mohamed Swarhib Shafie ◽

Srijit Das ◽

...

Keyword(s):

Body Height ◽

Age Groups ◽

Longitudinal Axis ◽

Mental Foramen ◽

Morphometric Parameters ◽

The Body ◽

Postmortem Computed Tomography ◽

Malaysian Population ◽

Mandibular Body ◽

3D Volume

Introduction: The mental foramen is present on either side of the body of the mandible bone. This foramen transmits mental vessels and nerves. In forensic anthropology, mental foramen may be important for differentiating sex, estimating age and identifying various races based on morphology. The main aim of the present study was to determine the position, shape and diameter of the mental foramen according to sex, age and race by postmortem computed tomography in the Malaysian population. Materials and Methods: A total of 79 dentulous patients (48 males, 31 females) from 3 age groups (18-30 years, 31– 50 years, 51-74 years) were selected for this study, and ten parameters were observed for each mandible. The parameters were divided into two morphological and eight morphometric parameters. The morphometric parameters were measured by using Osirix MD Software 3D Volume Rendering. Results: Results showed that mandibular body length and height were significantly greater in males than in females by independent t-test. (p< 0.05). However, the mandibular body height was found to decrease significantly with age in both sexes by one-way Anova. It was observed that the shape of mental foramen was 45.6% oval and 54.4% rounded. About 44.3% of them were in line with the longitudinal axis of the second premolar tooth. Conclusion: It was concluded that mental foramen may be used for identification purposes, particularly for sex, age and race determination.

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Evaluation of the Distance between the Mental Foramen and the Mandibular Edge: Cone Beam Computed Tomography Analysis in Turkish Population

Balkan Journal of Dental Medicine ◽

10.2478/bjdm-2021-0005 ◽

2021 ◽

Vol 25 (1) ◽

pp. 53-57

Author(s):

Ozkan Adiguzel ◽

Suzan Cangul ◽

Artemisa Adiguzel ◽

Begum Erpacal ◽

Zeki Akkus

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Age Groups ◽

Turkish Population ◽

Mental Foramen ◽

Cone Beam ◽

Imaging Method ◽

Gender And Age ◽

Significant Difference ◽

Imaging Science

Summary Background/Aim: The aim of this study was to evaluate the distance between the mental foramen and the upper and lower edges of the mandible in the Turkish population according to different gender and age groups. Material and Methods: A total of 1756 samples of 878 patients who presented at the Dentomaxillofacial Radiology Department of the Dentistry Faculty of Dicle University were included in the study for evaluation of the distance between the mental foramen and the upper and lower edges of the mandible. The cone beam computed tomography (CBCT) images were taken using an I-CAT Vision device (Imaging Science International, Hatfield, USA). Multiple variance analysis was used in the statistical analyses of the data. Results: A statistically significant difference was identified between the genders in respect of the distance of the external edge of the mental foramen from the upper edge of the mandible (p=0,000). In the evaluations of the different age groups, no statistically significant difference was determined. A statistically significant difference was determined between the gender and age groups in respect of the distance of the mental foramen from the lower edge of the mandible (p=0,000). Conclusions: The distance of the mental foramen from the upper and lower edges of the mandible can show variations according to age and gender. Therefore, the use of CBCT as a 3-dimensional imaging method with a low radiation dose is recommended.

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Assessment of the Anterior Loop of the Mental Nerve Using Cone Beam Computerized Tomography Scan

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-13-00346 ◽

2015 ◽

Vol 41 (6) ◽

pp. 632-639 ◽

Cited By ~ 17

Author(s):

Chun-I Lu ◽

John Won ◽

Aladdin Al-Ardah ◽

Ruben Santana ◽

Dwight Rice ◽

...

Keyword(s):

Computerized Tomography ◽

Age Groups ◽

Inferior Alveolar Nerve ◽

Mental Foramen ◽

Cone Beam ◽

Mental Nerve ◽

Anterior Loop ◽

Significant Difference ◽

Cone Beam Computerized Tomography ◽

The Mean

The purpose of this study is to use cone-beam computerized tomography (CBCT) scans with oblique-transverse reconstruction modality to measure and compare the anterior loop length (AnLL) of the mental nerve between gender and age groups and to compare the difference between the right and left sides. Sixty-one female and 61 male CBCT scans were randomly selected for each age group: 21–40, 41–60, and 61–80 years. Both right- and left-side AnLLs were measured in each subject using i-CATVision software to measure AnLLs on the oblique transverse plane using multiplanar reconstruction. The anterior loop was identified in 85.2% of cases, with the mean AnLL of the 366 subjects (732 hemimandibles) being 1.46 ± 1.25 mm with no statistically significant difference between right and left sides or between different gender groups. However, the mean AnLL in the 21–40 year group (1.89 ± 1.35 mm) was larger than the AnLL in the 41–60 year group (1.35 ± 1.19 mm) and the 61–80 year group (1.13 ± 1.08 mm). In conclusion, when placing implants in close proximity to mental foramina, caution is recommended to avoid injury to the inferior alveolar nerve. No fixed distance anteriorly from the mental foramen should be considered safe. Using CBCT scans with the oblique-transverse method to accurately identify and measure the AnLL is of utmost importance in avoiding and protecting its integrity.

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