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Assessment and comparison of retention of zirconia copings luted with different cements onto zirconia and titanium abutments: An in vitro study

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ABSTRACT

Aim:: The purpose of this in vitro study was to assess and compare the retention of zirconia copings luted with different luting agents onto zirconia and titanium abutments.

Materials and methods:: Titanium and zirconia abutments were torqued at 35 N/cm onto implant analogs. The samples were divided into two groups: Group A consisted of four titanium abutments and 32 zirconia copings and Group B consisted of four zirconia abutments and 32 zirconia copings and four luting agents were used. The cemented copings were subjected to tensile dislodgement forces and subjected to ANOVA test.

Results:: Zirconia abutments recorded a higher mean force compared to titanium. Among the luting agents, resin cement recorded the highest mean force followed by zinc phosphate, glass ionomer, and noneugenol zinc oxide cement, respectively.

Conclusion:: Highest mean retention was recorded for zirconia implant abutments compared to titanium abutments when luted with zirconia copings.

No MeSH data available.


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Figure 6: Tensometer

Mentions: Specimens were stored at room temperature for 24 h and immersed in artificial saliva for 7 days, after which specimens were thermo cycled 100 times between 5°C and 55°C with a dwell time of 10 s, dried and subjected to retention test.[6] The cemented copings were subjected to tensile dislodgement forces using crosshead speed of 0.5 mm/min until cement failure occurred[4] [Figures 6–8]. The same abutment was used with each of the coping and four cements were evaluated. Abutments were cleaned with a plastic explorer. Abutments were immersed in an ultrasonic cleaner for 15 min and re-used.


Assessment and comparison of retention of zirconia copings luted with different cements onto zirconia and titanium abutments: An in vitro study
Tensometer
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4837784&req=5

Figure 6: Tensometer
Mentions: Specimens were stored at room temperature for 24 h and immersed in artificial saliva for 7 days, after which specimens were thermo cycled 100 times between 5°C and 55°C with a dwell time of 10 s, dried and subjected to retention test.[6] The cemented copings were subjected to tensile dislodgement forces using crosshead speed of 0.5 mm/min until cement failure occurred[4] [Figures 6–8]. The same abutment was used with each of the coping and four cements were evaluated. Abutments were cleaned with a plastic explorer. Abutments were immersed in an ultrasonic cleaner for 15 min and re-used.

View Article: PubMed Central - PubMed

ABSTRACT

Aim:: The purpose of this in vitro study was to assess and compare the retention of zirconia copings luted with different luting agents onto zirconia and titanium abutments.

Materials and methods:: Titanium and zirconia abutments were torqued at 35 N/cm onto implant analogs. The samples were divided into two groups: Group A consisted of four titanium abutments and 32 zirconia copings and Group B consisted of four zirconia abutments and 32 zirconia copings and four luting agents were used. The cemented copings were subjected to tensile dislodgement forces and subjected to ANOVA test.

Results:: Zirconia abutments recorded a higher mean force compared to titanium. Among the luting agents, resin cement recorded the highest mean force followed by zinc phosphate, glass ionomer, and noneugenol zinc oxide cement, respectively.

Conclusion:: Highest mean retention was recorded for zirconia implant abutments compared to titanium abutments when luted with zirconia copings.

No MeSH data available.