PMID- 37821890
OWN - NLM
STAT- MEDLINE
DCOM- 20231102
LR  - 20231122
IS  - 1472-6831 (Electronic)
IS  - 1472-6831 (Linking)
VI  - 23
IP  - 1
DP  - 2023 Oct 11
TI  - Positional transfer accuracy of titanium base implant abutment provided by two 
      different scan body designs: an invitro study.
PG  - 746
LID - 10.1186/s12903-023-03399-9 [doi]
LID - 746
AB  - BACKGROUND: The variabilities in design and material of scan bodies have a major 
      role in the positional transfer accuracy of implants. The purpose of this invitro 
      study was to compare the 3D transfer accuracy (trueness and precision) of 
      titanium base (TB) abutment position provided by 2 different scan bodies: 
      one-piece scan body (SB) in comparison to two-piece healing abutment and scan peg 
      (HA-SP). METHODS: A maxillary model with a dummy implant in the 2nd premolar 
      (Proactive Tapered Implant; Neoss) was 3D printed and TB (Ti Neolink Mono; Neoss) 
      was tightened on the implant and scanned by using a laboratory scanner (inEos X5; 
      Dentsply Sirona) (reference scan). An SB (Elos Medtech) and an HA-SP (Neoss) were 
      subsequently connected to the implant and were scanned 10 times each by using the 
      same scanner (test scans). All the scans were exported as STL files and imported 
      into CAD software where the TBs were formed. Test scans were superimposed on 
      reference scans for transfer accuracy analysis using 3D metrology software (GOM 
      Inspect; GOM GmbH) in terms of angular deviation in vertical and horizontal 
      directions, linear deviation in each XYZ axis of TBs and total linear deviation 
      in all axes. Statistical analysis was done using independent sample t test. When 
      Levene's test for equality of variances was significant, Welch's t-test was used. 
      (P value < 0.05) RESULTS: Significant differences were found amongst the tested 
      groups in both angular and linear deviation in terms of trueness with less 
      deviation values for the SB group (P < 0.001). For the precision, significant 
      differences were found amongst the tested groups in angular deviation in vertical 
      direction with less deviation value for the SB group compared to HA-SP group 
      (P < 0.001). However, no significant difference was found between the tested 
      groups regarding the angular deviation in horizontal direction (P = 1.000). 
      Moreover, significant differences were found amongst the tested groups in linear 
      deviations with less linear deviations in XYZ axes for SB compared to HA-SP group 
      (P = 0.020, < 0.001, = 0.010 respectively). CONCLUSIONS: SB showed less angular 
      and linear deviation values in the 3D positional transfer of TB than HA-SP 
      indicating higher degree of accuracy of SB.
CI  - (c) 2023. BioMed Central Ltd., part of Springer Nature.
FAU - Ramadan, Rania E
AU  - Ramadan RE
AD  - Department of Prosthodontics, Faculty of Dentistry, Alexandria University, 
      Alexandria, Egypt. rania.elsayed.dent@alexu.edu.eg.
FAU - Razek, Mahmoud Khamis Abdel
AU  - Razek MKA
AD  - Department of Prosthodontics, Faculty of Dentistry, Alexandria University, 
      Alexandria, Egypt.
FAU - Mohamed, Faten S
AU  - Mohamed FS
AD  - Department of Prosthodontics, Faculty of Dentistry, Alexandria University, 
      Alexandria, Egypt.
FAU - Fahmy, Rania A
AU  - Fahmy RA
AD  - Department of Oral Medicine and Periodontology, Faculty of Dentistry, Alexandria 
      University, Alexandria, Egypt.
FAU - Abd-Ellah, Mervat E
AU  - Abd-Ellah ME
AD  - Department of Prosthodontics, Faculty of Dentistry, Alexandria University, 
      Alexandria, Egypt.
LA  - eng
PT  - Journal Article
DEP - 20231011
PL  - England
TA  - BMC Oral Health
JT  - BMC oral health
JID - 101088684
RN  - D1JT611TNE (Titanium)
RN  - 0 (Dental Implants)
SB  - IM
MH  - Humans
MH  - *Computer-Aided Design
MH  - Titanium
MH  - Dental Impression Technique
MH  - Models, Dental
MH  - *Dental Implants
MH  - Imaging, Three-Dimensional
PMC - PMC10568787
OTO - NOTNLM
OT  - Healing abutment-scan peg
OT  - Meteorology software
OT  - Positional transfer accuracy
OT  - Scan body
OT  - Titanium base abutment
COIS- The authors declare no competing interests.
EDAT- 2023/10/12 00:43
MHDA- 2023/11/02 12:45
PMCR- 2023/10/11
CRDT- 2023/10/11 23:51
PHST- 2023/03/31 00:00 [received]
PHST- 2023/09/09 00:00 [accepted]
PHST- 2023/11/02 12:45 [medline]
PHST- 2023/10/12 00:43 [pubmed]
PHST- 2023/10/11 23:51 [entrez]
PHST- 2023/10/11 00:00 [pmc-release]
AID - 10.1186/s12903-023-03399-9 [pii]
AID - 3399 [pii]
AID - 10.1186/s12903-023-03399-9 [doi]
PST - epublish
SO  - BMC Oral Health. 2023 Oct 11;23(1):746. doi: 10.1186/s12903-023-03399-9.