A Randomized Controlled Trial of Implant-retained Mandibular Overdentures

Abstract

Evidence from randomized clinical trials of implant-retained overdentures is very limited at the present time. The aim of this study was to compare implant-retained mandibular overdentures and conventional complete dentures in a randomized controlled trial (RCT). Our a priori hypothesis was that implant-retained mandibular overdentures would be significantly better than conventional complete dentures. Edentulous patients (n = 118) were randomly allocated to either an Implant Group (n = 62) or a Denture Group (n = 56). Patients completed the Oral Health Impact Profile (OHIP) and a denture satisfaction scale pre-treatment and three months post-treatment. Upon completion of treatment, both groups reported improvement (p < 0.001, Wilcoxon Ranks Sum test) in oral-health-related quality of life and denture satisfaction. There were no significant post-treatment differences between the groups, but a treatment effect may be masked by application of “intention to treat” analysis. The OHIP change scores were significantly greater for patients receiving implants than for those who refused them.

Oral health–related quality of life in partially edentulous patients: Assessments before and after implant therapy

“…The fully edentulous condition has negative impacts on oral healtherelated quality of life (OHRQoL) (Szentpetery et al, 2005), including the inability to chew, poor speech, pain, and dissatisfaction with appearance (Walton and MacEntee, 2005). Dental implants that support mandibular prostheses provide significant benefit to edentulous patients (Melas et al, 2001;Awad et al, 2003;Heydecke et al, 2003;Timmerman et al, 2004;Allen et al, 2006;Attard et al, 2006). Allen and McMillian (2003) have shown that patients who requested implants but received conventional dentures reported little satisfaction with dentures and only modest improvements in the quality of life.…”

What is known about the influence of dentine hypersensitivity on oral health-related quality of life?

“…The questionnaire has been applied several times, including in patients with temporomandibular disorders [19, 20], xerostomia [21], burning mouth syndrome [22], tooth agenesis [23] and HIV infection [24, 25]. Clinical trials have also used the OHIP to evaluate implant-supported prostheses [26, 27] and steroidal therapy for oral lichen planus [28]. However, regarding the condition of dentine hypersensitivity (DHS) and OHRQoL (and especially the OHIP), the literature is limited.…”

Overdenture na reabilitação de paciente desdentado

“…Como alternativa, as overdentures são opções reabilitadoras efi cazes, defi nidas como próteses totais ou parciais removíveis que se encaixam sobre raízes residuais ou implantes osseointegrados (4,5).…”