Computed tomography morphology of the mandibular ramus at the lingual plane in patients with mandibular hyperplasia

Ma, Jiguang; Lu, Li

doi:10.1016/j.ijom.2009.03.005

Cited by 9 publications

(6 citation statements)

References 9 publications

(14 reference statements)

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“…Marrow width between mandibular canal and inner buccal cortical bone of 0.8 mm or less were said to likely develop neurosensory disturbance post-operatively. 15 A study done by Ma and Lu 16 had found out that the percentage of prognathic mandible having marrow space of less than or equal to 0.8 mm is higher than the percentage of mandible without prognathism; 30% versus 7.5%. Considering these findings, patients with MP are at higher risk of getting unfavorable splits and also IAN injury.…”

Section: Marrow Widthmentioning

confidence: 99%

Morphometric analysis of prognathic and non-prognathic mandibles in relation to BSSO sites using CBCT

Shaeran

Shaari

Rahman

et al. 2017

Journal of Oral Biology and Craniofacial Research

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Section: Marrow Widthmentioning

confidence: 99%

Morphometric analysis of prognathic and non-prognathic mandibles in relation to BSSO sites using CBCT

Shaeran

Shaari

Rahman

et al. 2017

Journal of Oral Biology and Craniofacial Research

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“…Therefore, detailed and accurate preoperative information is essential to be able to explain the medium-to-long-term prognosis to the patient in detail and obtain informed consent. A number of reports have investigated NSD in patients who have undergone BSSRO [3,4,5,16,17], and some have investigated its onset using CT [7,8,11,18,19,20]. However, to our knowledge, no studies have reported long-term NSD in BSSRO based on initial evaluation of the width of the cancellous bone, including at sites inside the mandibular canal, using preoperative CT.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, its occurrence following BSSRO is believed to be associated with the close postoperative proximity of cancellous bone from the split portion to the mandibular canal. Previous studies have investigated the development of NSD based on measurement of the distance between the mandibular canal and external cortical bone or the course of the mandibular canal through the mandible [7,8,9,10,11] but did not assess preoperative CT images.…”

Section: Introductionmentioning

confidence: 99%

Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy

et al. 2017

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Objective: This study evaluated the condition of mandibular cancellous and cortical bone on computed tomography (CT) images in order to investigate its relationship with the incidence of neurosensory disturbances (NSD) in the mental nerve region after bilateral sagittal splitting ramus osteotomy (BSSRO). Methods: BSSRO was performed on 58 lateral mandibles in 29 patients. From preoperative CT images, the width endpoints of the transversal bone were measured in region I immediately inferior to the mandibular foramen, region II in the mandibular angle region, and region III distal to the lower second molar. The incidence of NSD immediately after surgery and the residual NSD rate at 1, 3, and 6 months after surgery were investigated. The correlation between incidence of NSD in the mental nerve region and each transversal bone width endpoint immediately after and at 6 months after surgery was also comparatively evaluated. Results: The overall incidence of NSD immediately after surgery was 67.2% (39/58 sides) and the overall residual NSD rate at 1, 3, and 6 months after surgery was 53.4% (31/58 sides), 31.0% (18/58 sides), and 17.2% (10/58 sides), respectively. No significant differences were observed for any width endpoints of the transversal bone measured at regions I or III, but the transversal width of the entire mandible was significantly different in region II between patients with and without NSD at 6 months after surgery (p < 0.05). Conclusion: These findings demonstrate that the transversal width of the entire mandible may be an important factor in predicting NSD incidence.

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“…The current literature on mandibular foramen is mostly based on the anatomic data, surgical landmarks derived from dry human skulls, panoramic and radiologic images (4,5). There are a lot of limitations as shrinkage and fracture of subtle structures or magnification, distortion and reproducibility of radiographic images in measurements of these studies (6,7,8,9). While there are enough research and data sets for the mandible surgery of the healthy population in the clinic, there is a lack of data in the mandible surgery of geriatric patients, especially edentate patients because consequences of tooth loss on the maxillary and mandibular alveolar bone are well known.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mandibular Foramen Localization with Three-Dimensional Computed Tomography in Adult Individuals

Bilir¹,

Turamanlar²,

Güzel³

et al. 2021

hamidiyemedj

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Mandibular anestezi, süt ve kalıcı azı dişlerinin pulpa, restoratif ve cerrahi tedavilerinde, mandibula kırıklarında ve mandibulayı ilgilendiren tüm cerrahi girişimlerde sıklıkla tercih edilen bir anestezi tekniğidir. Bu nedenle hastalarda mandibular anestezi tekniği uygulanırken foramen mandibulae lokalizasyon farklılıkları dikkate alınmalıdır. Bu çalışmanın amacı, yaşayan erişkinlerde foramen mandibulaenin lokalizasyonunun üç boyutlu bilgisayarlı tomografi görüntüleri ile değerlendirmesidir. Gereç veYöntemler: Çalışma, paranazal sinüs ve/veya baş-boyun patolojileri için bilgisayarlı tomografi incelemesi yapılan rastgele seçilmiş 200 erişkin bireyin radyolojik görüntüleri üzerinde retrospektif olarak gerçekleştirildi. Foramen mandibulaedan ramus mandibulae kenarlarına en yakın dikey (A) ve yatay mesafeler (C) ve ramus mandibulaenın toplam dikey (B) ve yatay mesafeleri (D) dişli ve dişsiz bireylerde bilateral olarak ölçüldü. Bulgular: Dişli ve dişsiz mandibula ölçümleri karşılaştırıldığında, tüm parametrelerde (A, B, C, D, A/B, C/D) istatistiksel olarak anlamlı bir fark bulundu ve dişli mandibula ölçümlerinin dişsiz mandibulalara göre daha büyük olduğu belirlendi. Mandibular ölçümler laterilizasyona (sol/sağ) göre karşılaştırıldığında, sağ dişli mandibulada A ve D ölçümleri ve AB oranı ile sağ dişsiz mandibulada B, C, D ölçümleri ve AB, CD oranları istatistiksel olarak anlamlı derecede sol taraftan daha büyük bulundu. Ölçümler cinsiyete göre karşılaştırıldığında erkek dişli mandibulanın B, C, D ölçümleri ve AB oranı kadınlara göre istatistiksel olarak anlamlı derecede yüksekti. ÖZBackground: Mandibular anesthesia is a frequently preferred anesthesia technique in the restorative, pulpal and surgical treatments of milk molars and permanent molars, as well as in mandible fractures and all surgical interventions that involve the mandible. In this reason, localization differences of mandibular foramen should be taken into consideration while applying mandibular anesthesia technique in patients. The aim of this study is to evaluate the localization of the mandibular foramen in living adults with three-dimensional computed tomography images. Materials and Methods:The study was carried out retrospectively on the radiologic images of 200 randomly selected adult individuals who had computed tomography examination for paranasal sinus and/or head and neck pathologies. The closest vertical (A) and horizontal (C) distances from mandibular foramen to margins of mandibular ramus and total vertical (B) and horizontal (D) distances of mandibular ramus were measured bilaterally in the edandate and dendate individuals, and the A/B and C/D ratios were evaluated.Results: When the measurements of dentate and edentate mandibles were compared, a statistically significant difference was found in all parameters (A, B, C, D, A/B, C/D) and it was determined that the measurements of dentate mandibles were larger than those of edentate mandibles. When the mandibular measurements were compared according to the sides (left/right), the A and D me...

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Computed tomography morphology of the mandibular ramus at the lingual plane in patients with mandibular hyperplasia

Cited by 9 publications

References 9 publications

Morphometric analysis of prognathic and non-prognathic mandibles in relation to BSSO sites using CBCT

Morphometric analysis of prognathic and non-prognathic mandibles in relation to BSSO sites using CBCT

Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy

Evaluation of Mandibular Foramen Localization with Three-Dimensional Computed Tomography in Adult Individuals

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