Abstract
Statement of problem
The technology behind optical scanners has greatly improved recently, making their
dental application advantageous. While their accuracy is now comparable with that
of conventional impression materials, whether these techniques have other advantages
is unclear.
Purpose
The purpose of this systematic review and meta-analysis was to determine whether digital
scanning for implant-supported restorations is more time-efficient and convenient
for the patient.
Material and methods
The study was conducted on September 23, 2020 using 4 different databases (Medline,
Cochrane, Web of Science, Scopus) searching for clinical studies that compared the
time needed and/or patient perceptions between those who had undergone the digital
scanning procedure and those who had undergone conventional impression making.
Results
Twelve studies met the inclusion criteria for qualitative and quantitative analysis.
Outcome variables were measured as standard mean differences (SMDs) by following a
fixed-effects model or random-effects model (in the case of high heterogeneity). Digital
scanning was more time-efficient and was preferred by patients for all 4 analyzed
outcomes (comfort, anxiety, nausea, time perception).
Conclusions
Digital scanning was found to be more time-efficient and convenient than conventional
impression making for implant-supported restorations. Additional randomized controlled
trials are needed to confirm the findings of this review.
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Article info
Publication history
Published online: March 04, 2021
Footnotes
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Identification
Copyright
© 2020 by the Editorial Council for the Journal of Prosthetic Dentistry.
