title: Influence of connection type on the biomechanical behavior of distal extension mandibular removable partial dentures supported by implants and natural teeth.
abstract: Few studies are performed to evaluate the influence of connection type on the stress distribution of distal extension mandibular removable partial dentures (RPDs) supported by both implants and natural teeth. In this study, five three-dimensional finite element models were prepared to simulate mandibular bilateral partially edentulous arches. Four were RPDs supported by both implants and natural teeth, and the other one was RPDs supported only by natural teeth. The maximum equivalent (EQV) stress values of bone around implants, the abutments, and the mucosa displacements of the related supporting structures were measured. It was found that a non-rigid telescopic coping was more favorable to protect the implant than a rigid telescopic coping. Compared with other connection types, the easy resilient attachment (ERA) system seemed to be effective to associate implant without complications. However, the results obtained in the present study should be cautiously interpreted in the clinic.
authors.affiliation: a Department of Prosthodontics , Hubei-MOST KLOS & KLOBM, School and Hospital of Stomatology, Wuhan University , 237 Luoyu Road, Wuhan 430079 , P.R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Xiao
authors.affiliation: a Department of Prosthodontics , Hubei-MOST KLOS & KLOBM, School and Hospital of Stomatology, Wuhan University , 237 Luoyu Road, Wuhan 430079 , P.R. China.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Li
authors.affiliation: a Department of Prosthodontics , Hubei-MOST KLOS & KLOBM, School and Hospital of Stomatology, Wuhan University , 237 Luoyu Road, Wuhan 430079 , P.R. China.
authors.forename: Shiqian
authors.initials: S
authors.lastname: Shen
authors.affiliation: b Department of Stomatology , The Affiliated Shenzhen Maternity and Child Healthcare Hospital of Southern Medical University , Shenzhen 518000 , P.R. China.
authors.forename: Shaowu
authors.initials: S
authors.lastname: Chen
authors.affiliation: a Department of Prosthodontics , Hubei-MOST KLOS & KLOBM, School and Hospital of Stomatology, Wuhan University , 237 Luoyu Road, Wuhan 430079 , P.R. China.
authors.forename: Sulin
authors.initials: S
authors.lastname: Chen
authors.affiliation: a Department of Prosthodontics , Hubei-MOST KLOS & KLOBM, School and Hospital of Stomatology, Wuhan University , 237 Luoyu Road, Wuhan 430079 , P.R. China.
authors.forename: Jiawei
authors.initials: J
authors.lastname: Wang
mesh_terms: D000328:Adult; D001842:Bone and Bones; D000044:Dental Abutments; D019094:Dental Prosthesis, Implant-Supported; D003832:Denture, Partial, Removable; D020342:Finite Element Analysis; D006801:Humans; D008297:Male; D008334:Mandible; D008954:Models, Biological; D010519:Periodontium; D013314:Stress, Mechanical; D014070:Tooth
keywords: dental implant; dental stress analysis; finite element analysis; removable partial denture