Kiliaridis S, Engström C, Chavez L M
Department of Orthodontics, University of Göteborg, Gothenburg, Sweden.
Scand J Dent Res. 1992 Dec;100(6):330-6. doi: 10.1111/j.1600-0722.1992.tb01082.x.
The aim of this study was to investigate the influence of low masticatory function on the craniofacial growth pattern in rats fed a low calcium and vitamin D deficient diet. Male growing rats were divided randomly into three groups: the Normal Hard Diet group, the Deficient Soft Diet group, and the Deficient Hard Diet Group. Lateral cephalograms were taken at days 0, 14 and at the end of the experiment, day 28. The craniofacial growth pattern was altered by an upwards rotation of the viscerocranium (orthocranialization) in the Deficient groups and, the total skull lengths were shorter than in the Normal Hard Diet group. The viscerocranium in the Deficient Soft Diet group was in an even more orthocranial position than in the Deficient Hard Diet group and the antegonial notch was shallower. This indicates that an induced disturbance of craniofacial morphology due to metabolic bone disease during growth is accentuated by a low masticatory function.
本研究的目的是调查低咀嚼功能对喂食低钙和维生素D缺乏饮食的大鼠颅面生长模式的影响。雄性生长大鼠被随机分为三组：正常硬食组、缺乏软食组和缺乏硬食组。在实验第0天、第14天以及实验结束时（第28天）拍摄头颅侧位片。在缺乏组中，脏颅向上旋转（正颅化）改变了颅面生长模式，并且总颅骨长度比正常硬食组短。缺乏软食组的脏颅比缺乏硬食组处于更正颅的位置，下颌角切迹更浅。这表明生长期间代谢性骨病引起的颅面形态学诱导性紊乱会因低咀嚼功能而加剧。
