Oral health‐related quality of life in patients with non‐metal clasp dentures: a randomised cross‐over trial

Abstract

We investigated the efficacy of non-metal clasp dentures (NMCDs) with regard to the oral health-related quality of life (OHRQoL) and compare the findings with those for conventional metal clasp-retained dentures (MCDs). This single-centre, randomised controlled, two-phase, open label, cross-over trial included 28 partially dentate individuals. The patients were randomised to receive MCDs followed by NMCDs, or the opposite sequence (n = 14 in each group); each denture was worn for 3 months. OHRQoL was evaluated using the Oral Health Impact Profile-Japanese version (OHIP-J) at entry (T-entry; before treatment with the first denture) and at 3 months after treatment with each denture (T3). An examiner evaluated denture stability, oral appearance and surface roughness before denture delivery (T0) and at T3 and denture hygiene at T3. A total of 24 patients completed the trial. There were no complications related to the dentures, abutment teeth or denture-bearing mucosa during the follow-up periods for both dentures. The mean OHIP summary score was lower for NMCDs than for MCDs, and the difference (9 points) was greater than the minimal important difference (6 points), indicating the difference was clinically relevant. The effect size was medium (0·70). Statistical analyses with linear mixed models found a significant effect of the denture type on the OHIP summary score and scores for the Oro-facial appearance, Oro-facial pain and Psychological impact domains (NMCD < MCD; P < 0·05). The results of our study suggest that NMCDs allow for better OHRQoL compared with MCDs.

Patient and Clinical Evaluation of Traditional Metal and Polyamide Removable Partial Dentures in an Elderly Cohort

“…Moreover, the elderly, having lower motor skills, would greatly benefit from an easier positioning and removal of this prosthesis. In case of many missing teeth, an acceptable solution could be to reinforce VALPLAST‐RPD using a metal structure and polyamide anterior clasps …”

“…In case of many missing teeth, an acceptable solution could be to reinforce VALPLAST-RPD using a metal structure and polyamide anterior clasps. 7,8,15,18…”

“…Instead, the other two types of prostheses have been considered little or non‐cumbersome. This finding could be explained by the fact that the rigid framework of CoCr‐RPD and the high flexibility and strength of VALPLAST‐RPD allow the production of thinner and lighter prostheses compared to PMMA ones . PMMA‐RPD prostheses are brittle, lacking strong texture and therefore needing width and thickness to avoid fractures.…”

“…This finding could be explained by the fact that the rigid framework of CoCr-RPD and the high flexibility and strength of VALPLAST-RPD 7 allow the production of thinner and lighter prostheses compared to PMMA ones. 5,18 PMMA-RPD prostheses are brittle, lacking strong texture and therefore needing width and thickness to avoid fractures. In addition, seven patients with this prosthesis complained about speech difficulty.…”

Conical zirconia telescoping into electroformed gold: A retrospective study of prostheses supported by teeth and/or implants

“…A common method to replace lost teeth in the presence of only few abutments is to use telescopic prostheses. In appropriately selected patients, esthetically pleasing outcomes with good retention and high masticatory comfort can be achieved in this way . Also, telescopic prostheses allow existing teeth and implants to be included, as well as axial loading of the abutments thanks to the tight physical fit of telescopes .…”