Clinical performance of two onlay designs for molars after root canal treatment.
J Oral Sci
; 65(3): 171-175, 2023 Jul 01.
Article
in En
| MEDLINE
| ID: mdl-37245963
ABSTRACT
PURPOSE:
To evaluate the clinical performance of two proposed onlay designs.METHODS:
Molars with occlusal and/or mesial/distal defects after root canal treatment were classified by design into three groups. Onlays without shoulders were the control group (Group C, n = 50). The designed onlays were Group O (n = 50) and the designed mesio-occlusal/disto-occlusal onlays were Group MO/DO (n = 80). All onlays had an occlusal thickness of approximately 1.5-2.0 mm, and the designed onlays had a shoulder depth and width of approximately 1 mm. In Groups C and O, the box-shaped retention was 1.5 mm in depth. The proximal box was connected with a dovetail retention in Group MO/DO. Patients were examined every 6 months and followed for 36 months. Restorations were evaluated by using the modified United States Public Health Service Criteria. Statistical analysis was performed by using Kaplan-Meier analysis, the chi-square test, and Fisher's exact test.RESULTS:
No tooth fracture, debonding, secondary caries, or gingivitis was observed in any group. Groups O and MO/DO had satisfactory survival and success rates, and there was no significant difference in performance characteristics among the three groups (P > 0.05).CONCLUSION:
The two proposed onlay designs were effective in protecting molars.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Dental Porcelain
/
Inlays
Limits:
Humans
Language:
En
Journal:
J Oral Sci
Journal subject:
ODONTOLOGIA
Year:
2023
Document type:
Article