title: Mini vs. Standard Implants for Mandibular Overdentures: A Randomized Trial.
abstract: A mandibular implant-retained overdenture is considered a first-choice treatment for edentulism. However, some aspects limit the use of standard implants-for example, the width of edentulous ridges, chronic diseases, fear, or costs. This randomized trial compared mandibular overdentures retained by 2 or 4 mini-implants with standard implants, considering oral health-related quality of life (OHRQoL), patient satisfaction, and complications such as lost implant. In sum, 120 edentulous men and women (mean age, 59.5 ± 8.5 y) randomly received 4 mini-implants, 2 mini-implants, or 2 standard implants. Participants provided data regarding OHRQoL and satisfaction until 12 mo. Clinical parameters, including implant survival rate, were also recorded. Both 2 and 4 mini-implants led to better OHRQoL, compared with 2 standard implants. Treatment with 4 mini-implants was more satisfying than 2 standard implants, with 2 mini-implants presenting intermediate results. Implant survival rate was 89%, 82%, and 99% for 4 mini-implants, 2 mini-implants, or 2 standard implants, respectively. Overdentures retained by 4 or 2 mini-implants can achieve OHRQoL and satisfaction at least comparable with that of 2 standard implants. However, the survival rate of mini implants is not as high as that of standard implants (ClinicalTrials.gov NCT01411683).
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil raphael@forp.usp.br.
authors: R F
authors: RF
authors: de Souza
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors: A B
authors: AB
authors: Ribeiro
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors: M P
authors: MP
authors: Della Vecchia
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors: L
authors: L
authors: Costa
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors: T R
authors: TR
authors: Cunha
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors: A C
authors: AC
authors: Reis
authors: Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
authors: R F
authors: RF
authors: Albuquerque
mesh_terms: D015921:Dental Implants / Q000009:adverse effects; D019232:Dental Restoration Failure; D003826:Denture, Complete, Lower / Q000009:adverse effects; D003828:Denture, Overlay / Q000009:adverse effects; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011788:Quality of Life
chemical_list: D015921:Dental Implants
keywords: complete denture; edentulous mouth; minimally invasive surgical procedures; patient outcome assessment; patient satisfaction; quality of life