Satisfaction and Life Quality Improvement of mini-implant retained overdenture for mandibular edentulous patients
Date Issued
2011
Date
2011
Author(s)
Chuang, Shuhui
Abstract
Introduction: Dissatisfaction with complete denture treatment among edentulous patients has long been a frustrating problem, especially for mandibular edentulous patients. Implant overdentures have been proposed to be the first choice of treatment for these patients. To date, the outcomes of implant therapy have been reported mainly in terms of implant survival rates and durability of prosthetic components. Mini dental implants have the advantage of low cost and are suitable for edentulous patients with narrow alveolar ridges. However, the patient-based outcome was not well understood in patients receiving mini dental implant retained overdenture therapy.
Objectives: The aim of this study was to investigate patient-based outcomes of mini dental implant retained overdenture using Denture Satisfaction Scale(DS) and Oral Health Impact Profile for edentulous(OHIP-edent) in terms of phonetics, chewing function, denture retention, stability and oral health related quality of life.
Materials and methods: This study included patients who came to dental department of National Taiwan University Hospital(NTUH) searching for new lower complete denture. Two treatment options: complete mandibular denture, and implant supported overdenture were informed. Patients were assigned according to their preference.
The control group (CD group) includes patients receiving therapies including a conventional mandibular complete denture. For the experimental group (MDI group), a conventional mandibular complete denture was fabricated first and then 4 mini dental implants(MDIs, sendax 3M) were placed in the mandible to retain the denture. Two questionnaires were used in this study including patient satisfaction questionnaire (visual analogue scale) and oral health impact profile for edentulous (OHIP-edent,Likert scale) to assess effect of therapies on patient’s quality of life and health status.
All patients filled the questionnaires before the treatment about their old prosthesis (baseline) and then one month and three month after receiving a new mandibular denture. After the mandibular complete denture was delivered and followed up for 3 months, 4 mini dental implants were inserted between mental foramens. The patients were requested to fill questionnaires one month and three months after implant placement.
Results: The denture satisfaction in CD group three months after new denture delivery was not statistically significant different from the baseline, except for ease of removal and esthetic(p<0.05)。
The OHIP summary score and functional and physical and psychological subscale scores were statistically significantly different at three months after implant insertion versus baseline (p<0.05). The OHIP summary scores and functional and physical subscale scores were statistically significantly different at 3 month after implant insertion versus 3 months after new denture delivery (p<0.05). The data indicated an improvement both globally and for the functional subscales. Patients with high scores on the Denture satisfaction scale for their mandibular prosthesis reported better OHIP outcomes after treatment with implants. Postoperative functional satisfaction with the implant-retained prosthesis resulted improved quality of life.
Conclusions: Implant retained overdenture using mini dental implants improves denture satisfaction and oral health related quality of life when compared to a conventional denture.
Subjects
Mini dental implant
Implant overdenture
Denture satisfaction scale
Oral health impact profile
OHIP
Type
thesis
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