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Article
Horizontal and Vertical Position of the Mental Foramen on Panoramic Views of a Selected Iraqi Population

Author: Dr. Salah J. Muhsen, B.D.S.,M.Sc. د. صلاح محسن
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2011 Volume: 8 Issue: 2 Pages: 188-192
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The mental foramen is the opening of the short mental canal, through which themental nerve the terminal branch of the inferior alveolar nerve exits, knowing theexact position of the mental foramen is essential in oral surgical procedures. Thisstudy determines this position in a selected Iraqi population.240 panoramic radiographs of Iraqi population selected from three different oraland maxillofacial centers to identify the normal range of position of the mentalforamen, both horizontal and vertical position were studied, radiographs with anyerrors or taken for patients not co inside with our criteria were excluded.In horizontal position , 51.31% were found apical to the lower second premolar ,43.64% between the first and second premolars, 3.07% were found between secondpremolar and lower first molar, 1.09% were found apical to the lower first premolar,0.87% were found between lower canine and lower first premolar.In vertical position,60.08% were found inferior to the apex of the related tooth,36.84% were found within the apex of the related tooth while 3.07% were foundsuperior to the apex.The mental foramen can be found anywhere from lower canine to the lower firstmolar, although 94.95% of the studied radiographs showed that mental foramen waslocated either between the lower premolars or at the apex of the second premolar.


Article
Anatomical study of the relationship of impacted mandibular third molar root apex to inferior alveolar canal in Kurdistan population using orthopantomogram
دراسة تشريحية لعلاقة قمة الجذر المولي الفك العلوي المتأثرة بالقناة السنخية الرديئة في سكان كوردستان باستخدام تقويم العظام

Authors: Khoshee Salih Hameed Al-Mufty --- Fedil Andraws Yalda --- Ali Sultan Al-Refai
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 3 Pages: 1859-1868
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Extraction of an impacted mandibular third lower molar tooth is one of the common surgical procedures that may lead to the damage of inferior alveolar nerve due to roots proximity to the mandibular canal. This study aimed to know the relative relationship and proximity of the mandibular third molar roots to the inferior alveolar canal in relation to gender, age, depth of impaction, relation with ramus, and type of angulation of the impacted tooth in Kurdistan population.Methods: A sample of 366 digital panoramic radiographs of patients with impacted mandibular third molar was studied. Panoramic radiographic signs images were evaluated for the presence of root contact with the superior border of the mandibular canal, darkening of the roots apex, deflected roots, narrow root, superimposition of the canal, interruption of the white line, diversion of the inferior alveolar canal, and narrowing of the inferior alveolar canal. The depths of impaction, relation with ramus, and type of angulation were also studied.Results: Significant relation of the proximity of the mandibular third molar roots to the inferior alveolar canal with the gender (P = 0.001) and age (P <0.001) were seen. A significant relation of the proximity of the mandibular third molar roots to the inferior alveolar canal with the depth of impaction (P <0.001), relation with the ramus (P =0.004), and angulation of impaction were also seen (P <0.001).Conclusion: Significant relation of the proximity of the mandibular third molar roots to the inferior alveolar canal with gender, age, depth of impaction, relation with the ramus, and angulation of impaction were seen.

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