Pseudocyst in the coronoid process of the mandible

Characteristics of Medial Depression of the Mandibular Ramus in Patients with Orthodontic Treatment Needs: A Panoramic Radiography Study

“…As early as in 1983, Langlais et al, radiographed the anatomical specimen of dry mandibles and found the prevalence of MDMR as 66% [1]. In the same year, Clarke and Mc Anear performed a similar study on dry mandibles and found the prevalence to be only 5% [2]. Kang BC observed the prevalence as 62% (28% unilateral and 33% bilateral) [6].…”

“…On the radiographs, they appear as a radiolucent artefact due to decreased absorption of X-rays. The depression may be unilateral or bilateral and may be misinterpreted as a pathological condition [2,3]. Over the years, studies have shown variable prevalence of MDMR in anatomical specimens, radiograph of normal patients and in patients with skeletal defects.…”

A possible association between medial depression of mandibular ramus and maximum bite force

“…Geometric shapes of MDMR were classified based on the varieties available in the literature: tear-drop, semilunar, circular and triangular ( Fig. 1) [6,11]. The control group was randomly selected.…”

“…The medial depression of the mandibular ramus (MDMR) was first described in 1983 by Langlais et al [11]. MDMR is a normal anatomical depression and described as a result of a slender mandibular ramus in the area of the mandibular notch [6]. On panoramic radiographs, these depression areas appear as a radiolucent region due to decreased absorption of X-rays.…”

“…On panoramic radiographs, these depression areas appear as a radiolucent region due to decreased absorption of X-rays. MDMR may be unilateral or bilateral and sometimes misinterpreted as a pathological condition [6,11].…”