van Kampen F M C, van der Bilt A, Cune M S, Fontijn-Tekamp F A, Bosman F
Department of Head and Neck, Oral-Maxillofacial Surgery, Prosthodontics and Special Dental Care, University Medical Center Utrecht, Str. 4.115, PO Box 85.060, 3508 AB, The Netherlands.
J Dent Res. 2004 Sep;83(9):708-11. doi: 10.1177/154405910408300910.
The type of attachment that is used in implant-supported mandibular overdentures may influence the retention and stability of the prosthesis and, thus, masticatory function. In this within-subject cross-over clinical trial, we examined the hypothesis that greater retention and stability of the overdenture improve the masticatory function. Eighteen edentulous subjects received 2 oral implants, a new overdenture, and, successively, 3 different suprastructure modalities: magnet, ball, and bar-clip. Masticatory performance, masticatory efficiency, and swallowing threshold were measured. The masticatory function significantly improved after implant treatment with each of the 3 attachments. We observed small differences in masticatory function among the 3 attachment types: slightly better masticatory performance with ball and bar-clip than with magnet attachments. The number of chewing cycles until swallowing hardly decreased after implant treatment. We conclude that significantly better masticatory performance, combined with a slightly smaller number of chewing cycles after implant treatment, results in smaller food particles being swallowed.
种植体支持的下颌覆盖义齿所使用的附着类型可能会影响义齿的固位和稳定性，进而影响咀嚼功能。在这项受试者自身交叉临床试验中，我们检验了以下假设：覆盖义齿更好的固位和稳定性可改善咀嚼功能。18名无牙颌受试者接受了2颗口腔种植体、一副新的覆盖义齿，随后依次采用3种不同的上部结构形式：磁体、球帽和杆卡。测量了咀嚼性能、咀嚼效率和吞咽阈值。使用这3种附着体进行种植治疗后，咀嚼功能均显著改善。我们观察到这3种附着体类型在咀嚼功能上存在细微差异：球帽和杆卡的咀嚼性能略优于磁体附着体。种植治疗后直至吞咽的咀嚼周期数几乎没有减少。我们得出结论，种植治疗后咀嚼性能显著改善，同时咀嚼周期数略有减少，这导致吞咽的食物颗粒更小。
