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The Effect of Temporary Cement Cleaning Methods on the Retention of Crowns
- Title
- The Effect of Temporary Cement Cleaning Methods on the Retention of Crowns
- Authors
- Song, Mi-Young; An, Hongseok; Park, Eun-Jin
- Ewha Authors
- 박은진
- SCOPUS Author ID
- 박은진
- Issue Date
- 2019
- Journal Title
- JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY
- ISSN
- 1059-941X
1532-849X
- Citation
- JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY vol. 28, no. 1, pp. E210 - E215
- Keywords
- Cleaning method; crown retention; temporary cement
- Publisher
- WILEY
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Purpose To evaluate the effect of temporary cement cleaning methods on the retention of cemented crowns using zinc phosphate cement and resin-modified glass ionomer cement. Materials and Methods Forty titanium specimens were fabricated to simulate prepared molars with minimally retentive taper. The Ni-Cr cast crowns were fabricated, temporarily cemented, and separated. The specimens were divided into four groups according to the temporary cement cleaning method (n = 10) as follows: control group (no temporary cementation), orange solvent group, ultrasonic cleaning group, and air-abrasion group. After the cleaning procedures, the specimens were cemented with definitive cements (zinc phosphate cement and resin-modified glass ionomer, RMGI, cement) and subjected to thermocycling (5000 cycles, 5-55 degrees C, dwell time, 10 seconds). The tensile bond strength of each specimen was measured using a universal testing machine, and the results were analyzed using the Kruskal-Wallis and Mann-Whitney U test (alpha = 0.05). Results When cemented with zinc phosphate cement, the statistical analysis showed that the value of the air-abrasion group was significantly higher than those of the other groups (p < 0.01). There was no statistically significant difference among the other groups. When cemented with RMGI cement, the air-abrasion group showed the lowest value, and the control group showed the highest value (p < 0.01). The difference between the ultrasonic cleaning group and the orange solvent group was not statistically significant. Conclusion The use of temporary cement did not have a significant influence on retention of permanently cemented crowns when zinc phosphate cement was used for permanent cementation. Airborne-particle abrasion after provisional cementation improved retention of crowns cemented with zinc phosphate cement; however, the use of temporary cement significantly decreased retention of permanently cemented crowns when RMGI cement was used regardless of the temporary cement cleaning method.
- DOI
- 10.1111/jopr.12646
- Appears in Collections:
- 의과대학 > 의학과 > Journal papers
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