Effect of length and location of edentulous area on the accuracy of prosthetic treatment plan incorporation into cone-beam computed tomography scans.
Clin Implant Dent Relat Res
; 20(3): 300-307, 2018 Jun.
Article
in En
| MEDLINE
| ID: mdl-29399999
ABSTRACT
BACKGROUND:
Effects of length and location of the edentulous area on the accuracy of prosthetic treatment plan incorporation into cone-beam computed tomography (CBCT) scans has not been investigated.PURPOSE:
To evaluate the effect of length and location of the edentulous area on the accuracy of prosthetic treatment plan incorporation into CBCT scans using different methods. MATERIAL ANDMETHODS:
Direct digital scans of a completely dentate master model with removable radiopaque teeth were made using an intraoral scanner, and digital scans of stone duplicates of the master model were made using a laboratory scanner. Specific teeth were removed to simulate different clinical situations and their CBCT scans were made. Surface scans were registered onto the CBCT scans. Radiographic templates for each clinical situation were also fabricated and used during CBCT scans of the master models. Using metrology software, three-dimensional (3D) deviation was measured on standard tesselation language (STL) files created from the CBCT scans against an STL file of the master model created from a CBCT scan. Statistical analysis was done using the MIXED procedure in a statistical software and Tukey HSD test (α =.05).RESULTS:
The interaction between location and method was significant (P = .009). Location had no significant effect on registration methods (P > .05), but on the radiographic templates (P = .011). Length of the edentulous area did not have any significant effect (P > .05).CONCLUSIONS:
Accuracy of digital image registration methods was similar and higher than that of radiographic templates in all clinical situations. Tooth-bound radiographic templates were significantly more accurate than the free-end templates. The results of this study suggest using image registration instead of radiographic templates when planning dental implants, particularly in free-end situations.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Patient Care Planning
/
Image Processing, Computer-Assisted
/
Therapy, Computer-Assisted
/
Mouth, Edentulous
/
Cone-Beam Computed Tomography
Limits:
Humans
Language:
En
Journal:
Clin Implant Dent Relat Res
Journal subject:
ODONTOLOGIA
Year:
2018
Document type:
Article