PMID- 35912120
OWN - NLM
STAT- MEDLINE
DCOM- 20220802
LR  - 20220802
IS  - 1932-8745 (Electronic)
IS  - 0161-0457 (Print)
IS  - 0161-0457 (Linking)
VI  - 2022
DP  - 2022
TI  - Establishment of Narrow Root Fracture Models Using Modified Temperature Cycling 
      Method and Diagnosis Using Different Cone-Beam CT Units.
PG  - 3636795
LID - 10.1155/2022/3636795 [doi]
LID - 3636795
AB  - AIM: Using a modified thermal cycling method to establish narrow root fracture 
      models and evaluate the diagnosis efficiency of them using four different 
      cone-beam CT (CBCT) units. Methodology. Fifty-six intact teeth were selected, and 
      the crowns of the teeth were embedded using general purpose acrylic resin. 50 
      root fracture models were established by soaking these teeth in liquid nitrogen 
      and hot water cyclically; 6 teeth were used as the negative control. All the 56 
      teeth were scanned with the smallest voxel size of four different CBCT units 
      (NewTom VGi, Planmeca Promax 3D Max, Kavo 3D eXam, and Soredex Scanora3D). 10 
      teeth were randomly selected, and the roots were sliced using slow-speed saw to 
      obtain horizontal root sections. Scanning electron microscope (SEM) was used to 
      measure the width of the fracture lines (FLs). The CBCT images were evaluated for 
      the presence or absence of fracture lines. Accuracy, sensitivity, specificity, 
      positive predictive value (PPV), and negative predictive value (NPV) were 
      calculated for the diagnosis of FLs using the four CBCT units. RESULTS: Fifty 
      narrow root fracture models were successfully established, and 25 root sections 
      with 45 FLs were acquired. The width of FLs was from 3.43 mum to 143 mum; 32.2% of 
      the points had width under 25 mum, while only 9.6% of them had width over 75 mum. 
      The accuracy was 0.41, 0.54, 0.41, and 0.30 for NewTom VGi, Planmeca Promax 3D 
      Max, Kavo 3D eXam, and Soredex Scanora3D, respectively. CONCLUSIONS: The modified 
      temperature cycling method is a simple and effective method to establish narrow 
      root fracture models, and the diagnosis efficiency for these narrow fracture 
      lines was quite poor using all the four different CBCT units.
CI  - Copyright (c) 2022 Jiahao Liang et al.
FAU - Liang, Jiahao
AU  - Liang J
AUID- ORCID: 0000-0002-4385-2313
AD  - Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
FAU - Hu, Ziyang
AU  - Hu Z
AUID- ORCID: 0000-0002-2537-5701
AD  - Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
FAU - Cao, Dantong
AU  - Cao D
AUID- ORCID: 0000-0001-9167-5828
AD  - Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
FAU - Cao, Ya
AU  - Cao Y
AUID- ORCID: 0000-0003-2332-7041
AD  - Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
FAU - Xie, Xin
AU  - Xie X
AUID- ORCID: 0000-0003-0987-4217
AD  - Department of Stomatology, Third People's Hospital of Danyang City, Danyang, 
      China.
FAU - Gao, Antian
AU  - Gao A
AUID- ORCID: 0000-0002-3929-4785
AD  - Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
FAU - Wang, Zhiyong
AU  - Wang Z
AUID- ORCID: 0000-0003-0563-2413
AD  - Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
FAU - Lin, Zitong
AU  - Lin Z
AUID- ORCID: 0000-0002-3733-4974
AD  - Department of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, 
      Medical School of Nanjing University, Nanjing, China.
LA  - eng
PT  - Journal Article
DEP - 20220714
PL  - England
TA  - Scanning
JT  - Scanning
JID - 7903371
SB  - IM
MH  - Cone-Beam Computed Tomography/methods
MH  - Humans
MH  - Temperature
MH  - *Tooth
MH  - *Tooth Fractures/diagnostic imaging
MH  - Tooth Root/diagnostic imaging
PMC - PMC9303484
COIS- The authors deny any conflicts of interest related to this study.
EDAT- 2022/08/02 06:00
MHDA- 2022/08/03 06:00
PMCR- 2022/07/14
CRDT- 2022/08/01 03:56
PHST- 2022/02/22 00:00 [received]
PHST- 2022/06/21 00:00 [accepted]
PHST- 2022/08/01 03:56 [entrez]
PHST- 2022/08/02 06:00 [pubmed]
PHST- 2022/08/03 06:00 [medline]
PHST- 2022/07/14 00:00 [pmc-release]
AID - 10.1155/2022/3636795 [doi]
PST - epublish
SO  - Scanning. 2022 Jul 14;2022:3636795. doi: 10.1155/2022/3636795. eCollection 2022.