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Effect of Premolar Axial Wall Height on Computer-Aided Design/Computer-Assisted Manufacture Crown Retention
- Source :
- The International journal of prosthodontics. 31(4)
- Publication Year :
- 2018
-
Abstract
- Purpose To evaluate the effect of premolar axial wall height on the retention of adhesive, full-coverage, computer-aided design/computer-assisted manufacture (CAD/CAM) restorations. Materials and methods A total of 48 premolar teeth randomized into four groups (n = 12 per group) received all-ceramic CAD/CAM restorations with axial wall heights (AWH) of 3, 2, 1, and 0 mm and 16-degree total occlusal convergence (TOC). Specimens were restored with lithium disilicate material and cemented with self-adhesive resin cement. Specimens were loaded to failure after 24 hours. Results The 3- and 2-mm AWH specimens demonstrated significantly greater failure load. Failure analysis suggests a 2-mm minimum AWH for premolars with a TOC of 16 degrees. Conclusion Adhesive technology may compensate for compromised AWH.
- Subjects :
- Materials science
medicine.medical_treatment
0206 medical engineering
02 engineering and technology
In Vitro Techniques
Crown (dentistry)
Dental Prosthesis Retention
03 medical and health sciences
Random Allocation
0302 clinical medicine
stomatognathic system
Lithium disilicate
medicine
Premolar
Humans
Bicuspid
Resin cement
Orthodontics
Random allocation
Crowns
030206 dentistry
General Medicine
Organ Size
020601 biomedical engineering
medicine.anatomical_structure
Dental Prosthesis Design
Computer-Aided Design
Adhesive
Oral Surgery
Subjects
Details
- ISSN :
- 08932174
- Volume :
- 31
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- The International journal of prosthodontics
- Accession number :
- edsair.doi.dedup.....f43107892bae23adad8436ce46fd9702