Tallgren A, Mizutani H, Tryde G
Institute of Dental Prosthetics, Royal Dental College, Copenhagen, Denmark.
J Prosthet Dent. 1989 Nov;62(5):594-600. doi: 10.1016/0022-3913(89)90086-3.
Changes in functional jaw movements during a 2-year period of denture wear were investigated. The sample consisted of 27 partially edentulous subjects who were provided with an immediate complete maxillary denture and a removable partial mandibular denture. Recordings of habitual chewing of apple and empty open-close cycles were made with a mandibular kinesiograph. At the pretreatment stage, when the patients occluded on a residual anterior dentition, irregular patterns of movement were observed. After placement of the dentures, which restored posterior occlusion, the chewing and open-close patterns showed marked improvement and were characterized by significant mean decreases in sagittal and transversal range of movement. Relining of the maxillary dentures further stabilized the functional patterns. During the second year, significant reductions in vertical range of movement and lateral chewing excursions were observed, and were probably related to impaired retention of the complete upper denture.
研究了义齿佩戴2年期间功能性颌运动的变化。样本包括27名部分牙列缺损患者，他们佩戴了即刻全口上颌义齿和可摘局部下颌义齿。使用下颌运动描记仪记录咀嚼苹果的习惯性动作和空口开合循环。在治疗前阶段，当患者以残留的前牙列咬合时，观察到不规则的运动模式。佩戴义齿恢复后牙咬合后，咀嚼和开合模式显示出明显改善，其特征是矢状面和横断面运动范围显著减小。上颌义齿重衬进一步稳定了功能模式。在第二年，观察到垂直运动范围和侧向咀嚼偏移显著减小，这可能与全口上义齿固位受损有关。
