PMID- 30769768
OWN - NLM
STAT- MEDLINE
DCOM- 20190624
LR  - 20200309
IS  - 1660-4601 (Electronic)
IS  - 1661-7827 (Print)
IS  - 1660-4601 (Linking)
VI  - 16
IP  - 4
DP  - 2019 Feb 14
TI  - Influence of Intra-Oral Scanner (I.O.S.) on The Marginal Accuracy of CAD/CAM 
      Single Crowns.
LID - 10.3390/ijerph16040544 [doi]
LID - 544
AB  - The aim of this in vitro study was to compare the quality of digital workflows 
      generated by different scanners (Intra-oral digital scanners (I.O.S.s)) focusing 
      on marginal fit analysis. A customized chrome-cobalt (Cr-Co) implant abutment 
      simulating a maxillary right first molar was fixed in hemi-maxillary stone model 
      and scanned by eight different I.O.S.s: Omnicam((R)) (Denstply Sirona, Verona, 
      Italy) CS3500((R)), CS3600((R)), (Carestream Dental, Atlanta, GA, USA), True 
      Definition Scanner((R)) (3M, St. Paul, MN, USA), DWIO((R)) (Dental Wings, Montreal, 
      Quebec, Canada), PlanScan((R)) (Planmeca Oy, Helsinki, Finland), 3D PROGRESS 
      Plus((R)) (MHT, Verona, Italy), TRIOS 3((R)) (3Shape, Copenhagen, Denmark). Nine 
      scans were performed by each tested I.O.S. and 72 copings were designed using a 
      dental computer-assisted-design/computer-assisted-manufacturing (CAD/CAM) 
      software (exocad GmbH, Darmstadt, Germany). According to CAD data, zirconium 
      dioxide (ZrO(2)) copings were digitally milled (Roland DWX-50, Irvine, CA, USA). 
      Scanning electron microscope (SEM) direct vision allowed for marginal gap 
      measurements in eight points for each specimen. Descriptive analysis was 
      performed using mean, standard deviation, and median, while the Kruskal(-)Wallis 
      test was performed to determine whether the marginal discrepancies were 
      significantly different between each group (significance level p < 0.05). The 
      overall mean marginal gap value and standard deviation were 53.45 +/- 30.52 mum. The 
      minimum mean value (40.04 +/- 18.90 mum) was recorded by PlanScan((R)), then 3D 
      PROGRESS Plus((R)) (40.20 +/- 21.91 mum), True Definition Scanner((R)) (40.82 +/- 26.19 
      mum), CS3500((R)) (54.82 +/- 28.86 mum) CS3600((R)) (59,67 +/- 28.72 mum), Omnicam((R)) (61.57 
      +/- 38.59 mum), DWIO((R)) (62.49 +/- 31.54 mum), while the maximum mean value (67.95 +/- 
      30.41 mum) was recorded by TRIOS 3((R)). The Kruskal(-)Wallis tests revealed a 
      statistically significant difference (p-value < 0.5) in the mean marginal gaps 
      between copings produced by 3D PROGRESS Plus((R)), PlanScan, True Definition 
      Scanner, and the other evaluated I.O.S.s. The use of an I.O.S. for digital 
      impressions may be a viable alternative to analog techniques. Although in this in 
      vitro study PlanScan((R)), 3D PROGRESS Plus((R)) and True Definition Scanner((R)) may 
      have showed the best performances, all I.O.S.s tested could provide clinically 
      encouraging results especially in terms of marginal accuracy, since mean marginal 
      gap values were all within the clinically acceptable threshold of 120 mum.
FAU - Ferrini, Francesco
AU  - Ferrini F
AD  - Department of Dentistry, IRCCS San Raffaele Hospital and Dental School, Vita 
      Salute University, 20123 Milan, Italy. ferrini.f@gmail.com.
FAU - Sannino, Gianpaolo
AU  - Sannino G
AD  - Department of Dentistry, IRCCS San Raffaele Hospital and Dental School, Vita 
      Salute University, 20123 Milan, Italy. gianpaolosannino@gmail.com.
FAU - Chiola, Carlo
AU  - Chiola C
AD  - Dental School, Vita Salute University, 20123 Milan, Italy. cchiola@me.com.
FAU - Cappare, Paolo
AU  - Cappare P
AD  - Department of Dentistry, IRCCS San Raffaele Hospital and Dental School, Vita 
      Salute University, 20123 Milan, Italy. paolocappare@gmail.com.
FAU - Gastaldi, Giorgio
AU  - Gastaldi G
AD  - Department of Dentistry, IRCCS San Raffaele Hospital and Dental School, Vita 
      Salute University, 20123 Milan, Italy. gastaldi.giorgio@hsr.it.
AD  - San Rocco Clinical Institute, 25050 Brescia, Italy. gastaldi.giorgio@hsr.it.
FAU - Gherlone, Enrico Felice
AU  - Gherlone EF
AD  - Department of Dentistry, IRCCS San Raffaele Hospital and Dental School, Vita 
      Salute University, 20123 Milan, Italy. gherlone.enrico@hsr.it.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
DEP - 20190214
PL  - Switzerland
TA  - Int J Environ Res Public Health
JT  - International journal of environmental research and public health
JID - 101238455
SB  - IM
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Canada
MH  - *Computer-Aided Design
MH  - Crowns/*standards
MH  - Denmark
MH  - Dental Impression Technique/*standards
MH  - Dental Marginal Adaptation/*standards
MH  - Dental Prosthesis Design/*standards
MH  - Female
MH  - Finland
MH  - Germany
MH  - Humans
MH  - Italy
MH  - Male
MH  - Middle Aged
MH  - Quebec
MH  - Tooth/*diagnostic imaging
PMC - PMC6406818
OTO - NOTNLM
OT  - CAD/CAM
OT  - SEM
OT  - digital impression
OT  - marginal accuracy
OT  - scanner
COIS- The authors declare no conflict of interest.
EDAT- 2019/02/17 06:00
MHDA- 2019/06/25 06:00
PMCR- 2019/02/01
CRDT- 2019/02/17 06:00
PHST- 2019/01/31 00:00 [received]
PHST- 2019/02/08 00:00 [revised]
PHST- 2019/02/11 00:00 [accepted]
PHST- 2019/02/17 06:00 [entrez]
PHST- 2019/02/17 06:00 [pubmed]
PHST- 2019/06/25 06:00 [medline]
PHST- 2019/02/01 00:00 [pmc-release]
AID - ijerph16040544 [pii]
AID - ijerph-16-00544 [pii]
AID - 10.3390/ijerph16040544 [doi]
PST - epublish
SO  - Int J Environ Res Public Health. 2019 Feb 14;16(4):544. doi: 
      10.3390/ijerph16040544.