Williams Frank L'Engle, Polet Caroline
Department of Anthropology, Georgia State University, Atlanta GA 30303 USA.
Directorate Earth & History of Life, Royal Belgian Institute of Natural Sciences, Brussels B-1000, Belgium.
Int J Paleopathol. 2017 Mar;16:44-49. doi: 10.1016/j.ijpp.2016.12.003. Epub 2017 Jan 22.
A Neolithic Belgian mandible from Bois Madame rockshelter in Arbre presents an asymmetrical morphology resulting from a secondary, or false, articulation of the right mandibular condyle. The pathological articulation produced enlarged masseter, medial pterygoid and mylohyoid musculature on the right side as well as a flattening of the right incisal alveolus curvature. The secondary condylar articulation did not lead to pronounced asymmetry of attrition on the antimeres of the dental arcade. This is the most complete mandible from this Late Neolithic collective burial dating to the beginning of the Bronze Age circa 4000 years BP. It is possible that a fall or blow to the mental symphysis during early adolescence could have resulted in the partial intrusion of the mandibular condyle into the articulation disc of the temporomandibular joint capsule. When the affected condyle healed, a secondary, but serviceable articulation developed, producing unique stresses on the involved muscular tissue and ultimately resulted in an asymmetry of mandibular form.
来自阿尔布雷的布瓦·马德琳岩洞的一具新石器时代比利时下颌骨呈现出不对称形态，这是由右侧下颌髁突的继发性或假性关节形成所致。病理性关节形成导致右侧咬肌、翼内肌和颏舌骨肌肌肉组织增大，以及右侧切牙牙槽曲率变平。继发性髁突关节形成并未导致牙弓对应部位磨损出现明显不对称。这是来自这个可追溯至约4000年前青铜时代初期的新石器时代晚期集体墓葬中最完整的下颌骨。青春期早期颏联合处的摔倒或撞击可能导致下颌髁突部分嵌入颞下颌关节囊的关节盘。当受影响的髁突愈合时，形成了继发性但仍可使用的关节，对相关肌肉组织产生独特的压力，最终导致下颌形态不对称。
