Fig 2
Design example of cases with indirect retainers. Patients with one or more retainers on the opposite side of the fulcrum line were defined as those with an indirect retainer. The figure shows the typical design for the subjects of this study.
Source publication
Purpose:
Removable partial dentures have a wide range of applications as missing tooth prostheses, and the denture design can be quite diverse. However, the factors affecting masticatory function remain unclear. We investigated the effect of denture design, especially the use of indirect retainers and major connectors, on masticatory function in p...
Context in source publication
Context 1
... major connectors are the lingual apron and lingual bar [17]. The rests are the occlusal, cingulum, and incisal rests. If one clasp had two rests, two rests were counted. Patients with one or more retainers on the opposite side of the fulcrum line were defined as the group with an indirect retainer (w-IR) (Fig. 2). Patients without a retainer on the opposite side of the fulcrum line were defined as the group without an indirect retainer (w/o-IR) (Fig. 3) [30]. An indirect retainer could be an occlusal, cingulum, or an incisal rest [19]. The direct retainer could be a casted, wire, or a combination clasp using casted and wire clasps ...
Citations
... 2 A recent paper also found a positive association between masticatory performance and the presence of indirect retention. 3 There is no evidence that a mesial rest imparts any advantage, and as also explained in Part 3 2 there is no evidence for the use of the RPI clasp system. ...
For many decades the literature has regularly reported that there is a discrepancy between what is taught in dental school and what is practiced, especially in the field of removable partial dentures. Not only that, but for more than 60 years reports from around the world have shown that, usually, the majority of clinicians abdicate their responsibility to design a removable partial denture (RPD) and instead leave this to the dental technician, who has no knowledge of the clinical condition of the patient and works only from a cast. Most patients around the world who require RPDs to improve aesthetics and chewing can only afford a removable prosthesis simply because the majority are poor. But RPDs can improve these aspects and contribute to an improved quality of life.
A retrospective study was conducted in the Department of Prosthodontics, LUMHS Jamshoro, from January 2022 to January 2023 to assess the effect of removable partial dentures (RPD) on oral health-related quality of life (OHROoL) and masticatory performance (MP) in patients with shortened dental arch. The study was conducted on a total of 19 patients. All included participants received RPD, and OHRQoL and MP were assessed after 2 weeks. The results showed that the MP score improved (177.45 ±38.86) along with OHIP-14 domain scores (4.21 ±4.22) after rehabilitation with RPDs. Hence, RPD effectively improves OHRQoL and MP in patients with mandibular SDA.
