Rissin L, House J E, Manly R S, Kapur K K
J Prosthet Dent. 1978 May;39(5):508-11. doi: 10.1016/s0022-3913(78)80181-4.
In this study, which is the first of its kind, it has been shown that overdenture patients, when compared to complete denture patients, while chewing a test food for a constant number of strokes, expended an equivalent amount of muscle effort, chewed more slowly and efficiently, and evidenced significantly better masticatory performance by producing an increased volume of fine test food particles. These findings provide a sound justification for the extra effort required to retain some natural teeth to provide overdenture services to patients. The fact that patients can masticate food more efficiently with overdentures than with complete dentures justifies the increased cost and time involved in their construction. The longitudinal effects that overdentures have on the basic physiopathologic processed involved in the progression of ridge resorption and the advantages of maintaining periodontal proprioception also should be studied.
在这项首例此类研究中，结果显示，与全口义齿患者相比，覆盖义齿患者在以固定次数咀嚼测试食物时，肌肉用力相当，咀嚼速度更慢且效率更高，并且通过产生更多量的细碎测试食物颗粒，表现出显著更好的咀嚼性能。这些发现为保留一些天然牙以向患者提供覆盖义齿服务所需的额外努力提供了充分的理由。患者使用覆盖义齿比使用全口义齿能更有效地咀嚼食物这一事实，证明了制作覆盖义齿所增加的成本和时间是合理的。还应研究覆盖义齿对牙槽嵴吸收进展所涉及的基本病理生理过程的纵向影响以及维持牙周本体感觉的优势。
