TY - JOUR
T1 - Survival and success rates of soft-milled cobalt-chromium-ceramic full-arch screw-retained implant-supported prostheses
T2 - a 2- to 7-year follow-up retrospective study
AU - Levartovsky, S.
AU - Arieli, A.
AU - Fridenberg, N.
AU - Matalon, S.
AU - Pilo, R.
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
PY - 2021/9
Y1 - 2021/9
N2 - Objectives: To retrospectively assess implant and prosthesis survival and success and patient satisfaction in edentulous patients treated with soft-milled cobalt-chromium-ceramic full-arch screw-retained implant-supported prostheses (SCCSIPs) over a mean clinical follow-up period of 4 years. Materials and methods: Twenty-one edentulous patients, aged 47–80 years, underwent restoration with 27 SCCSIPs (210 implants, 349 crown units). After definitive prosthesis insertion, patients participated in a yearly dental check-up recall program, including clinical and radiographic examinations. All supporting implants were examined for biological and technical complications, and the restorations were evaluated using modified California Dental Association (CDA) criteria. Life table and Kaplan–Meier survival analyses were performed. Patient satisfaction regarding chewing, esthetics, comfort, and phonetics was evaluated using a visual analog scale (VAS). Results: After a mean of 4 years, two implants (3.8%) failed, with no effect on prosthesis survival. The cumulative survival rate was 98.6% and 100% for implants and prostheses, respectively. The most frequent minor biological complication was soft tissue recession (11%). Porcelain fracture was the only major technical complication (0.6% of crown units), while the only minor technical complication was porcelain chipping (4% of crown units), which required only polishing. Overall, 66.7% of the prostheses were free of technical complications. Patient satisfaction was high to very high. Less satisfaction was noted with comfort due to soft tissue recession and food impaction. Conclusions: Within the limitations of this study, we conclude that the survival and success rates of SCCSIPs in edentulous patients were excellent. Clinical relevance: SCCSIPs should be considered when planning metal-ceramic implant-supported restorations.
AB - Objectives: To retrospectively assess implant and prosthesis survival and success and patient satisfaction in edentulous patients treated with soft-milled cobalt-chromium-ceramic full-arch screw-retained implant-supported prostheses (SCCSIPs) over a mean clinical follow-up period of 4 years. Materials and methods: Twenty-one edentulous patients, aged 47–80 years, underwent restoration with 27 SCCSIPs (210 implants, 349 crown units). After definitive prosthesis insertion, patients participated in a yearly dental check-up recall program, including clinical and radiographic examinations. All supporting implants were examined for biological and technical complications, and the restorations were evaluated using modified California Dental Association (CDA) criteria. Life table and Kaplan–Meier survival analyses were performed. Patient satisfaction regarding chewing, esthetics, comfort, and phonetics was evaluated using a visual analog scale (VAS). Results: After a mean of 4 years, two implants (3.8%) failed, with no effect on prosthesis survival. The cumulative survival rate was 98.6% and 100% for implants and prostheses, respectively. The most frequent minor biological complication was soft tissue recession (11%). Porcelain fracture was the only major technical complication (0.6% of crown units), while the only minor technical complication was porcelain chipping (4% of crown units), which required only polishing. Overall, 66.7% of the prostheses were free of technical complications. Patient satisfaction was high to very high. Less satisfaction was noted with comfort due to soft tissue recession and food impaction. Conclusions: Within the limitations of this study, we conclude that the survival and success rates of SCCSIPs in edentulous patients were excellent. Clinical relevance: SCCSIPs should be considered when planning metal-ceramic implant-supported restorations.
KW - Cobalt-chromium
KW - Complication
KW - Implant-supported prosthesis
KW - Soft milled
KW - VAS
UR - http://www.scopus.com/inward/record.url?scp=85101216130&partnerID=8YFLogxK
U2 - 10.1007/s00784-021-03842-7
DO - 10.1007/s00784-021-03842-7
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
C2 - 33616806
AN - SCOPUS:85101216130
SN - 1432-6981
VL - 25
SP - 5341
EP - 5350
JO - Clinical Oral Investigations
JF - Clinical Oral Investigations
IS - 9
ER -