As a donor site to extract bone graft blocks, the mandibular ramus
is reliable and versatile with a low rate of complications (Reininger et al.), which means it can be managed with limited morbidity.
Gonial (Go) angle was measured at the intersection of the planes formed by the posterior border of the mandibular ramus
(Ar-Go on the mandibular ramus
) and the lower border of the mandibular corpus (Go on the mandibular corpus - Pg).
Despite the existence of studies about the identification of the AFMR in adults, does not exist, to this moment, scientific reference values that allows one to locate the AFMR in relation to the Mandibular Foramen (MF) and the Mandibular Lingula (ML)--strategic anatomic landmarks that must be considered when the inferior alveolar nerve block or surgical procedures in the mandibular ramus
are necessary (Malamed; Trauner & Obgeser, 1957a, 1957b).
Distribution of subjects and their predicted sex, indicated by the shape of their mandibular ramus
, is presented in Table III and Figure 5.
A review of the literature showed not more than thirty previously reported cases of MOT in the maxillofacial region.4 Approximately two-thirds of these cases involved the masseter muscle, which does not seem unreasonable, because the muscle is broad and covers the lateral side of the mandibular ramus
and is susceptible to damage as a result of such incidents as fights or work-related accidents.4 MOT in more than one muscle, as in our case is even rarer (5 previously reported).
A) Cross-sectional scans of the mylohyoid canal at the right side; B) Sagittal view of the right mandibular ramus
, arrows: mandibular canal and mylohyoid canal; C) Sagittal view of the left mandibular ramus
, arrows: mandibular foramen, mandibular canal and mylohyoid canal; D) Coronal sections of the right and left mylohyoid canal.
The vertical distances from F, F-I and F-B, and the horizontal ones, F-A and F-P, were determined and used to establish the height and width of the mandibular ramus
by adding F-I to F-B, and F-A to F-P.
- Height of the mandibular ramus
: distance between the deepest point of the mandibular incisure and the deepest part of the antegonial incisure, is measured in the right and left mandibular ramus
Under the first-in-human, Phase 1/2 clinical study, the company will evaluate the EB-CMF product in six patients with mandibular ramus
continuity defects which require reconstruction.
2,3,5,6,7,8 Surgical extraction of mandibular third molar may range between easy to extremely difficult depending on multiple factors, like tooth angulation and location in relation to distal second molar tooth and ascending border of the mandibular ramus
, the bone density and proximity to inferior alveolar nerve.5,9
The dentary is exposed laterally in the anterior region of the mandibular ramus
. As the jaws are occluded, the anterior end of the dentary is partially covered by the premaxilla and the maxilla.
Imaging of the maxillofacial region by CT-scan revealed a right masseter abscess and associated osteomyelitis of the right mandible with an area of lytic destruction of the right mandibular ramus