Effects of denture use on occlusal force on abutment teeth in molar distal-extension edentulism.

IF 3.2 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Journal of prosthodontic research Pub Date : 2024-06-12 DOI:10.2186/jpr.JPR_D_23_00144

Tomoya Gonda, Hitomi Togawa, Kazunori Ikebe

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Abstract

Purpose: The present clinical study aimed to investigate the load exerted on abutment teeth in patients with distal extension edentulism, with and without a removable partial denture (RPD).

Methods: A total of 55 volunteers with distal extension edentulism who were fitted with an RPD participated in the present study. Occlusal force was measured by having the patients bite down on an occlusal force measuring sheet, and the occlusal forces on both the abutment teeth and the entire dentition with and without the RPD were compared using the Wilcoxon signed-rank test (P < 0.05). The occlusal forces on the abutment and non-abutment teeth were also compared.

Results: The median total occlusal force with the RPD in place was significantly greater than that without the RPD, while the median occlusal force on the abutment teeth without the RPD in place was significantly greater than that on the abutment teeth with the RPD. The occlusal forces on the abutment teeth were significantly greater than those on the non-abutment teeth.

Conclusions: Within the limitations of the present study, we found that the occlusal forces were greater on the abutment than the non-abutment teeth, and that RPDs may reduce the occlusal forces on abutment teeth.

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使用义齿对臼齿远端伸展义齿基牙咬合力的影响

目的：本临床研究旨在探讨远端扩展性义齿反流患者在安装和未安装可摘局部义齿（RPD）时基牙所承受的负荷：方法：共有55名安装了可摘局部义齿的远端延伸性牙齿缺损志愿者参与了本研究。通过让患者咬住咬合力测量片来测量咬合力，并使用Wilcoxon符号秩检验（P < 0.05）对安装和未安装RPD时基牙和整个牙列的咬合力进行比较。同时还比较了基牙和非基牙的咬合力：结果：安装了 RPD 的总咬合力中位数明显大于未安装 RPD 的总咬合力中位数，而未安装 RPD 的基牙咬合力中位数明显大于安装了 RPD 的基牙咬合力中位数。基牙上的咬合力明显大于非基牙上的咬合力：在本研究的限制条件下，我们发现基牙上的咬合力大于非基牙上的咬合力，而 RPD 可以减少基牙上的咬合力。

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来源期刊

Journal of prosthodontic research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

6.90

自引率

11.10%

发文量

161

期刊介绍： Journal of Prosthodontic Research is published 4 times annually, in January, April, July, and October, under supervision by the Editorial Board of Japan Prosthodontic Society, which selects all materials submitted for publication. Journal of Prosthodontic Research originated as an official journal of Japan Prosthodontic Society. It has recently developed a long-range plan to become the most prestigious Asian journal of dental research regarding all aspects of oral and occlusal rehabilitation, fixed/removable prosthodontics, oral implantology and applied oral biology and physiology. The Journal will cover all diagnostic and clinical management aspects necessary to reestablish subjective and objective harmonious oral aesthetics and function. The most-targeted topics: 1) Clinical Epidemiology and Prosthodontics 2) Fixed/Removable Prosthodontics 3) Oral Implantology 4) Prosthodontics-Related Biosciences (Regenerative Medicine, Bone Biology, Mechanobiology, Microbiology/Immunology) 5) Oral Physiology and Biomechanics (Masticating and Swallowing Function, Parafunction, e.g., bruxism) 6) Orofacial Pain and Temporomandibular Disorders (TMDs) 7) Adhesive Dentistry / Dental Materials / Aesthetic Dentistry 8) Maxillofacial Prosthodontics and Dysphagia Rehabilitation 9) Digital Dentistry Prosthodontic treatment may become necessary as a result of developmental or acquired disturbances in the orofacial region, of orofacial trauma, or of a variety of dental and oral diseases and orofacial pain conditions. Reviews, Original articles, technical procedure and case reports can be submitted. Letters to the Editor commenting on papers or any aspect of Journal of Prosthodontic Research are welcomed.