The influence of mandibular implant‐retained overdentures in masticatory efficiency

Abstract

Objective: To evaluate the masticatory efficiency of patients rehabilitated with conventional dentures (CDs) or implant-retained mandibular overdentures. Background: Despite the evident benefits of implants on mastication as assessed by subjective patientbased outcomes, the extent of implant overdenture treatment effect on food comminution is not well established. Materials and methods: A randomised clinical trial was carried out with 29 completely edentulous patients divided into two groups. The first group was rehabilitated with a mandibular overdenture retained by two splinted implants with bar-clip system, while the second group was rehabilitated with a mandibular CD. Both groups also were rehabilitated with maxillary CDs. Masticatory efficiency and patient satisfaction were assessed 3 months after denture insertion. Masticatory efficiency was evaluated through the colorimetric method with the beads as the artificial test-food. Comparisons for masticatory efficiency and patient satisfaction were performed using Student's t-test (a = 0.05). Results: No significant statistical difference was found for masticatory efficiency (p = 0.198). Patient overall satisfaction was significantly higher for the mandibular overdenture (p < 0.001). In addition, mandibular overdenture patients were significantly more satisfied with chewing experience (p < 0.05) and retention of the lower denture (p < 0.005). Conclusion:The results of this study suggest that mandibular overdenture significantly improves chewing experience, although limited effect on masticatory efficiency has been observed.

Functional benefits of implants placed during ablative surgery: A 5‐year prospective study on the prosthodontic rehabilitation of 56 edentulous oral cancer patients

“…30,31 However, both studies only included patients reconstructed with vascularized bone grafts, and did not differentiate between full and partial dentures. The literature on healthy edentulous patients shows that IODs tend to be favorable to conventional dentures with regard to masticatory performance, 19,20,38 also when the mixing ability test is used as test food. 32 This discrepancy with our study is at least partially because of selection bias in favor of conventional dentures: only patients who were not satisfied with their conventional dentures either received implants or did not wear their dentures during mastication (and were therefore scored as no functional dentures).…”

“…Mandibular IODs offer better masticatory function and more denture satisfaction, in particular for those patients who had retention problems with their previous mandibular conventional denture. [12][13][14][15][16][17][18][19][20] Also, bite force tends to be higher in healthy patients with an IOD. [21][22][23] In addition, functioning implants may prevent further resorption of the jawbone.…”

Technical Quality of Complete Dentures: Influence on Masticatory Efficiency and Quality of Life

“…[10][11][12][13] Different methods and evaluation models have been proposed in previous studies. [14][15][16] However, the influence of denture replacement on masticatory efficiency remains. In addition, only a few studies have evaluated the influence of denture quality on patient QoL, and short-term evaluations did not reveal the significance of new dentures.…”

Oral Health-Related Quality of Life in Brazilian Patients Wearing Three Types of Lower Dentures: Psychosocial and Clinical Aspects

“…On the other hand, responses regarding appearance and digestion were generally positive, regardless of denture type. Studies evaluating the impact on health-related QoL of the substitution of implant-supported dentures for CD show significant improvements in masticatory efficiency and QoL (Fueki et al, 2007;Farias Neto et al, 2012;Moura et al, 2016). Responses to the questionnaire employed in those studies (OHIP-EDENT) revealed a negative impact on some QoL aspects, especially physical pain, masticatory efficiency and functional limitation, matching our own findings.…”