Abstract
The palatal coverage is considered as an auxiliary element in the distribution of tensile strains on implant maxillary total prosthesis (implant overdentures) bases, either implant-supported or retained. However, complaints in some patients due to palate and phonetic impairment are constant. The palatal coverage removal would allow the improvement of these issues as well as pharyngeal control, salivary flow and hygiene. Thus, this literature review proposed to analyze the survival rates of dental implants retaining an implant maxillary overdenture without palatal coverage in edentulous maxilla. The review was conducted in Medline database, via PubMed between 2000 to 2016 period, and limited to English language publications. The search strategy took the following key-words, referencing title and / or abstract: dental implants; maxilla; maxillary; overdenture; and palatal coverage. According the data, the rehabilitation of the maxillary edentulous with four implant-supported overdentures with bar attachments and implant-retained with ball attachments has shown great survival rates of dental implants, but there are a few studies reporting the survival rate of implant overdentures. It was concluded that the prosthetic rehabilitation of total maxillary edentulous patients is viable through palateless implant overdentures when a minimum of four to six implants were used with careful planning and execution. KeywordsDental Implants; Maxilla; Overdenture and Palatal coverage.
Highlights
Many patients suffer from total edentulism and need treatment with prosthesis supported exclusively by fibromucosa, charactering a conventional total prosthesis
Wide partial bone reabsorption occurs over the years in this type of prosthesis in some patients, becoming the support compromised that result in poor retention and stability of conventional total prosthesis
This literature review aimed to verify the results presented in the current literature on implant overdentures prostheses without palatal coverage in a purpose to evaluate the edentulous maxillary rehabilitation with a palateless implant maxillary overdenture through the implants survival rates
Summary
Many patients suffer from total edentulism and need treatment with prosthesis supported exclusively by fibromucosa, charactering a conventional total prosthesis. Wide partial bone reabsorption occurs over the years in this type of prosthesis in some patients, becoming the support compromised that result in poor retention and stability of conventional total prosthesis. It generates a great impact on quality of life and well-being [1]. Reduced bone reabsorption and prosthesis mobility, increasing the Oral Health–Related Quality of Life – OHRQoL) [4,5]
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