Department of Orthodontics and Dentofacial Orthopedics, Institute of Dental Studies and Technologies, India.
Post Graduate Board of Studies, Department of Orthodontics and Dentofacial Orthopedics, Manav Rachna Dental College, Faridabad, India.
J Stomatol Oral Maxillofac Surg. 2023 Dec;124(6 Suppl 2):101570. doi: 10.1016/j.jormas.2023.101570. Epub 2023 Jul 26.
Functional jaw orthopaedics, produces a radical change in the occlusal scheme and the masticatory apparatus, particularly in patients with Class II malocclusion. It remains to be seen how the changes brought about by a functional appliance alter the masticatory ability of a growing child, who needs the necessary nutrition to properly grow the craniofacial region.
Pretreatment and Post-treatment values of masticatory efficiency and the distribution of the occlusal load at centric occlusion were evaluated and compared for 20 patients with Class II division 1 malocclusion undergoing functional jaw orthopaedics.
Significant increase in the masticatory efficiency was seen during and after treatment (p < 0.5) There was an increase in the anterior distribution of occlusal load associated with a concomitant decrease in the posterior region at centric occlusion.
Improvement in the masticatory efficiency was observed after treatment of a retrognathic mandible with functional jaw orthopaedics in the adolescent participants with Class II malocclusion. This highlights the importance of treatment with functional jaw orthopaedics, which apart from providing esthetic and functional improvement also improves the ability of a growing child to extract proper nutrition from his/her diet.
功能性颌骨矫形术在咬合方案和咀嚼器官方面产生了根本性的变化，特别是在安氏Ⅱ类错颌患者中。目前还不清楚功能性矫治器带来的变化会如何改变生长中儿童的咀嚼能力，因为儿童需要必要的营养来正常生长颅面区域。
评估并比较 20 名安氏Ⅱ类 1 分类错颌患者接受功能性颌骨矫形术后的咀嚼效率的治疗前和治疗后的变化，并比较正中牙合时的咬合负荷分布情况。
治疗期间和治疗后咀嚼效率显著增加（p<0.5），正中牙合时前牙区的咬合负荷增加，而后牙区的咬合负荷相应减少。
在青少年安氏Ⅱ类错颌患者中，用功能性颌骨矫形术治疗后，下颌后缩得到改善，咀嚼效率也得到提高。这突出了功能性颌骨矫形术治疗的重要性，它不仅提供了美观和功能的改善，还提高了生长中儿童从饮食中提取适当营养的能力。
