Biomechanical Responses of Endodontically Treated Tooth Implant–supported Prosthesis

Biomechanical interactions of endodontically treated tooth implant-supported prosthesis under fatigue test with acoustic emission monitoring

“…However, the clinical significance of the results from static finite element (FE) analysis is occasionally questionable because FE analysis results are usually dominated by many numerical assumptions, such as PDL non-linear material property, ill-condition element, load and boundary conditions. Particularly, a monotonic load does not accurately represent a clinical situation in which repetitive fatigue loading is characteristic [ 12 ].…”

“…However, splinting the implant and natural tooth is occasionally used as a rational alternative for anatomical structural reasons or patient-centered preferences [ 1 – 5 ]. Endodontically treated tooth restored used a post and core build-up and full crown is occasionally regarded as an abutment tooth in a TISP with healthy periodontal stability and in dense bone situations [ 4 , 6 – 12 ]. Potential physiological and engineering problems, such as marginal bone loss and implant or prosthesis complications (fracture) can occur under long-term higher bending moment acting at the implant site owing to the biomechanical dilemma resulting from the dissimilar mobility between an osseointegrated implant and tooth [ 2 , 12 – 16 ].…”

“…Endodontically treated tooth restored used a post and core build-up and full crown is occasionally regarded as an abutment tooth in a TISP with healthy periodontal stability and in dense bone situations [ 4 , 6 – 12 ]. Potential physiological and engineering problems, such as marginal bone loss and implant or prosthesis complications (fracture) can occur under long-term higher bending moment acting at the implant site owing to the biomechanical dilemma resulting from the dissimilar mobility between an osseointegrated implant and tooth [ 2 , 12 – 16 ]. However, the literature contains limited and conflicting data that addresses inclusion of abutment teeth with endodontic therapy in a TISP [ 4 ].…”

“…However, the literature contains limited and conflicting data that addresses inclusion of abutment teeth with endodontic therapy in a TISP [ 4 ]. A computer simulation study indicated that a 3-piece implant with a retaining-screw (RS) connection system produced higher stress compared with a 2-piece implant with a taper integrated screw-in (TIS) connection system [ 12 ]. Unfortunately, the result from this static numerical study requires further evaluation using insight into the in vitro fatigue tests to provide more realistic consultation.…”

Biomechanical outcomes of tooth-implant-supported fixed partial prostheses (FPPs) in periodontally healthy patients using root shape dental implants

“…In 123 patients, 339 implants were connected to 313 teeth by means of FPPs (test group). In another randomly selected group of 123 patients, 329 implants were connected to more evenly through the prosthesis, but as the tooth and the implant have a different degree of mobility, more stress is concentrated around the implant which has been shown by the aforementioned as well as other FEA and photoelastic studies 41,42 . To overcome the disparity in mobility of the different abutments, non-rigid connectors have been introduced.…”