Linda J. Dula, Kujtim Sh. Shala, David Stubljar, Andrej Starc, Shera Kosumi
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Measurements were taken before insertion, immediately after, and 1 and 3 months post-insertion of RPDs.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The analysis revealed progressive masticatory efficiency improvements for both clasp-retained and attachment-retained RPDs over time, with significant enhancements observed at the 3-month post-insertion mark. Initially, clasp-retained RPDs showed slightly higher efficiency than attachment-retained RPDs; however, attachment-retained RPDs demonstrated superior efficiency after 3 months (<i>p</i> = 0.001). Consistent improvements were noted across different denture support types, with Triangular and Quadrangular supports showing the most notable gains by 3 months (<i>p</i> ≤ 0.006). GLMM analysis underscored the significant impact of time on masticatory efficiency (<i>F</i>(3, 511) = 4.926, <i>p</i> = 0.002), with no significant effects attributed to RPD type or support type alone, nor any significant interaction effects, indicating a universal improvement in masticatory function over time regardless of RPD design.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>RPD insertion significantly improves masticatory efficiency, particularly evident 3 months post-insertion, with attachment-retained RPDs outperforming clasp-retained types. Improvements in masticatory function over time are consistent across all RPD designs, unaffected by denture type or support structure. This emphasizes the role of denture design in both immediate adaptation and long-term treatment success, suggesting that time significantly contributes to enhanced masticatory efficiency regardless of RPD design, highlighting the importance of tailored prosthetic rehabilitation.</p>\n </section>\n </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 2","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70130","citationCount":"0","resultStr":"{\"title\":\"Comparison of Increase in Masticatory Efficiency Between Removable Partial Dentures Retained With Clasps and Retained With Attachments\",\"authors\":\"Linda J. Dula, Kujtim Sh. 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引用次数: 0
摘要
目的评价和比较卡环固位可摘局部义齿与附着体固位义齿的咀嚼效率。材料与方法共107例患者参与了138个rpd的研究；87例（63.0%）有卡环保留，51例（37.0%）有附着保留。受试者咀嚼5.0 g花生30 s，用分光光度计测量咀嚼效率，吸收率为590µm。分别于rpd置入前、置入后、置入后1个月和3个月进行测量。结果分析显示，随着时间的推移，卡环保留和附着保留的rpd的咀嚼效率都有渐进式的提高，在插入后3个月观察到明显的增强。最初，卡扣保留的rpd的效率略高于附着保留的rpd；然而，附着保留的rpd在3个月后表现出更高的效率（p = 0.001）。不同类型的义齿支架均有一致的改善，其中三角形和四边形支架在3个月时的改善最为显著（p≤0.006）。GLMM分析强调了时间对咀嚼效率的显著影响（F(3,511) = 4.926, p = 0.002），没有单独归因于RPD类型或支持类型的显著影响，也没有任何显著的相互作用效应，表明无论RPD设计如何，咀嚼功能都会随着时间的推移而普遍改善。结论置入RPD可显著提高咀嚼效率，尤其在置入3个月后效果明显，附着保留型RPD优于卡环保留型。所有RPD设计的咀嚼功能随时间的改善是一致的，不受假牙类型或支撑结构的影响。这强调了义齿设计在即时适应和长期治疗成功中的作用，表明无论RPD设计如何，时间都显著有助于提高咀嚼效率，突出了定制义齿康复的重要性。
Comparison of Increase in Masticatory Efficiency Between Removable Partial Dentures Retained With Clasps and Retained With Attachments
Objectives
This study aimed to evaluate and compare the masticatory efficiency of removable partial dentures (RPDs) retained with clasps versus those retained with attachments.
Material and Methods
A total of 107 patients fitted with 138 RPDs participated in the study; 87 RPDs (63.0%) were clasp-retained, and 51 RPDs (37.0%) were attachment-retained. Subjects chewed 5.0 g of peanuts for 30 s, and masticatory efficiency was measured using a spectrophotometer at an absorption rate of 590 µm. Measurements were taken before insertion, immediately after, and 1 and 3 months post-insertion of RPDs.
Results
The analysis revealed progressive masticatory efficiency improvements for both clasp-retained and attachment-retained RPDs over time, with significant enhancements observed at the 3-month post-insertion mark. Initially, clasp-retained RPDs showed slightly higher efficiency than attachment-retained RPDs; however, attachment-retained RPDs demonstrated superior efficiency after 3 months (p = 0.001). Consistent improvements were noted across different denture support types, with Triangular and Quadrangular supports showing the most notable gains by 3 months (p ≤ 0.006). GLMM analysis underscored the significant impact of time on masticatory efficiency (F(3, 511) = 4.926, p = 0.002), with no significant effects attributed to RPD type or support type alone, nor any significant interaction effects, indicating a universal improvement in masticatory function over time regardless of RPD design.
Conclusions
RPD insertion significantly improves masticatory efficiency, particularly evident 3 months post-insertion, with attachment-retained RPDs outperforming clasp-retained types. Improvements in masticatory function over time are consistent across all RPD designs, unaffected by denture type or support structure. This emphasizes the role of denture design in both immediate adaptation and long-term treatment success, suggesting that time significantly contributes to enhanced masticatory efficiency regardless of RPD design, highlighting the importance of tailored prosthetic rehabilitation.
期刊介绍：
Clinical and Experimental Dental Research aims to provide open access peer-reviewed publications of high scientific quality representing original clinical, diagnostic or experimental work within all disciplines and fields of oral medicine and dentistry. The scope of Clinical and Experimental Dental Research comprises original research material on the anatomy, physiology and pathology of oro-facial, oro-pharyngeal and maxillofacial tissues, and functions and dysfunctions within the stomatognathic system, and the epidemiology, aetiology, prevention, diagnosis, prognosis and therapy of diseases and conditions that have an effect on the homeostasis of the mouth, jaws, and closely associated structures, as well as the healing and regeneration and the clinical aspects of replacement of hard and soft tissues with biomaterials, and the rehabilitation of stomatognathic functions. Studies that bring new knowledge on how to advance health on the individual or public health levels, including interactions between oral and general health and ill-health are welcome.
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