An anatomic and radiographic study of medial sigmoid depression in human mandible

Asdullah,; Aggarwal, Anshul; Khawja, Kauser J; Khan, Masood H.; Gupta, J. P.; Ratnakar, K

doi:10.4103/jiaomr.jiaomr_218_18

Cited by 4 publications

(9 citation statements)

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“…The present study's 62.4% prevalence of MSD in panoramic images was higher than the associated findings from Langlais et al (10%), Carvalho et al (20.3%), Kumar et al (23.2%), and Kang et al (33%) 3 , 4 , 19 , 28 . Like us, Asdullah et al reported a prevalence of 70% for MSD in panoramic 20 . Varying techniques and the subjectivity of radiographic interpretation might explain these discrepancies.…”

Section: Discussionmentioning

confidence: 56%

“…The panoramic technique is widely used as a dental imaging modality. Various studies of SN and MSD on panoramic images have evaluated the relationship between demographic and etiologic factors 2 , 20 .…”

Section: Discussionmentioning

confidence: 99%

“…Because of this region's fragility, separating the ramus will likely be more challenging 16 . Despite being in a location at risk for surgical complications, there are not many studies that assess this anatomical variation 4 , 20 , 21 . Moreover, no studies can be found comparing the MSD on CBCT and panoramic.…”

Section: Introductionmentioning

confidence: 99%

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Medial sigmoid depression prevalence and association with a sigmoid notch: cone beam computed tomography and panoramic image study

Dogan,

Boyacioglu

2024

Sci Rep

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This study aims to determine whether and how the data of the medial sigmoid depression (MSD) area via cone beam computed tomography (CBCT) differs from panoramic radiography. This study also aims to evaluate various sigmoid notch types and assess the relationship between sigmoid depression and notch morphology. A total of 129 individuals consisting of 258 sides were evaluated. Chi-Square/Fisher Exact tests were used to assess parameters on a categorical scale between two or more groups. McNemar’s test compared the findings detected on panoramic and CBCT images. MSD was more prevalent in females than males in both techniques, but this difference was not statistically significant. There was no association between the prevalence of MSD and the morphology of the sigmoid notch. The incidence of MSD shape was not significantly different between both imaging modalities. In both panoramic and CBCT, we found a high and similar prevalence of MSD. While the MSD prevalence was 66.7% for CBCT, it was 58.1% for panoramic. The shape or prevalence of MSDs in either approach did not correlate with sigmoid notch morphology. The two approaches' identical prevalence indicates that the panoramic image has adequately defines MSD. The high prevalence of MSD demonstrated how important it is for clinicians to characterize this anatomical variation accurately for the surgical treatment.

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

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Medial sigmoid depression prevalence and association with a sigmoid notch: cone beam computed tomography and panoramic image study

Dogan,

Boyacioglu

2024

Sci Rep

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“…The eight identified studies are listed in Table 1 [ 1 , 5 , 7 , 8 , 9 , 10 , 11 , 12 ]. The main text of two of them were not written in English, one of which was translated into English successfully by Google Docs [ 11 ], whereas the other one had extractable data from the abstract written in English [ 9 ].…”

Section: Resultsmentioning

confidence: 99%

Medial Sigmoid Depression of the Mandibular Ramus as a Lesion-Mimicking Anatomical Variation: A Systematic Review

Yeung

Wong

2021

IJERPH

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(1) Background: Medial sigmoid depression (MSD) of the mandibular ramus is an anatomical variation that resembles non-odontogenic cystic lesion. (2) Aim: The aim of this systematic review was to survey the literature to identify the relevant journal publications, reveal their scientific impact in terms of citations and compare the reported prevalence of MSD. (3) Materials and methods: PubMed, Google Scholar, Scopus and Web of Science were queried to identify relevant publications. The search string was: “medial depression of mandibular ramus” OR “medial depression of the mandibular ramus” OR “medial depression of the mandibular rami” OR “medial depression of mandibular rami” OR “medial sigmoid depression”. (4) Results: Eight studies were identified. Dry mandibles and patient dental panoramic radiographs were evaluated in four and seven of the eight studies, respectively. The prevalence of MSD varied from 20.2% to 82.0%. In male and female patients, the prevalence was 18.3–76.0% and 22.0–64.0%, respectively. MSD tended to occur bilaterally and most prevalent in patients with Angle’s Class II occlusion. The semilunar and triangular shapes were more common than teardrop and circular shapes. The most cited study had 12 citations. (5) Conclusions: MSD was a seldom investigated and cited anatomical variation that was not uncommon. Its recognition should be further promoted.

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“…Asdullah ve ark. 11 ise erkeklerde daha sık MSÇ görüldüğünü bildirmişlerdir. Bu sonuçlar, MSÇ görülme sıklığında belirgin bir cinsiyet eğilimi olmadığı şeklinde yorumlanabilir.…”

Section: Gġrġġunclassified

Medi̇al Si̇gmoi̇d Çöküntü Görülme Sikliğinin Panorami̇k Radyograflar İle Değerlendi̇ri̇lmesi̇: Retrospekti̇f Bi̇r Çalişma

Özkan¹,

Ak²

2021

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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Mandibular ramusun medial sigmoid çöküntüsü (MSÇ), üst ramusun medial tarafının hemen altında gözlenen anatomik bir çöküntüdür. İnce kemik yapısı nedeniyle panoramik radyograflarda unilateral ya da bilateral radyolüsensi olarak görünür. Konumu ve görünümü nedeniyle çeşitli patolojilerle karıştırılabilir. Bu çalışmanın amacı, MSÇ görülme sıklığının araştırılması ve karışabilecek olası patolojik durumlarla ayrımının yapılmasıdır. Gereç ve Yöntem: Aydın Adnan Menderes Üniversitesi Diş Hekimliği Fakültesi arşivinde yer alan 2017-2018 yılları arasında çekilmiş panoramik radyograflar retrospektif olarak tarandı. MSÇ'nin tamamının görüntülenebildiği, artefakt içermeyen 1000 adet panoramik radyograf çalışmaya dahil edildi. Panoramik radyograflar tecrübeli bir oral radyolog tarafından MSÇ varlığı ya da yokluğu açısından değerlendirildi. Kategorik değişkenler arasındaki ilişkiyi belirlemek için Ki-kare testi kullanıldı. P <0.05 değeri istatistiksel olarak anlamlı kabul edildi. Bulgular: Çalışmaya katılan 1000 adet panoramik radyografın 654'ü (%65,4) kadın, 346'sı (%34,6) erkek hastalara aitti. 766 radyografta MSÇ izlenmezken, 64 görüntüde bilateral, 170 görüntüde unilateral MSÇ izlendi. Medial çöküntü görülme sıklığında cinsiyete göre istatistiksel olarak anlamlı bir fark bulunamadı (p=0,436). Bilateral veya unilateral görülme sıklığınında da anlamlı fark yoktu (p=0,135). Yaş gruplarına göre panoramik radyografta medial çöküntü görülme sıklığı arasında anlamlı bir ilişki vardı (p=0,023). Sonuç: MSÇ panoramik radyograflarda görülen, yaşla beraber artan, herhangi bir tedavi gerektirmeyen anatomik bir oluşumdur. Hekimler radyograflar üzerinde bu bölgeyi değerlendirirken MSÇ varlığını ve görünüm tiplerini göz önünde tutmalı, bölgedeki benzer görünüm veren patolojilerden ayrımını yapabilmelidir. Ayrıca bu bölgede yapılacak cerrahi işlemlerde kemiğin ince yapısı hesaba katılmalıdır.

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An anatomic and radiographic study of medial sigmoid depression in human mandible

Cited by 4 publications

References 0 publications

Medial sigmoid depression prevalence and association with a sigmoid notch: cone beam computed tomography and panoramic image study

Medial sigmoid depression prevalence and association with a sigmoid notch: cone beam computed tomography and panoramic image study

Medial Sigmoid Depression of the Mandibular Ramus as a Lesion-Mimicking Anatomical Variation: A Systematic Review

Medi̇al Si̇gmoi̇d Çöküntü Görülme Sikliğinin Panorami̇k Radyograflar İle Değerlendi̇ri̇lmesi̇: Retrospekti̇f Bi̇r Çalişma

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