Comparing effectiveness of rubber dam and gingival displacement cord with copy abutment in reducing residual cement in cement-retained implant crowns: A crossover RCT
| Autor: | Tomas Linkevicius, Saulius Zukauskas, Paulius Andrijauskas, Vytaute Peciuliene, Jonas Alkimavicius |
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| Rok vydání: | 2020 |
| Předmět: |
Cord
medicine.medical_treatment Rubber Dams 0206 medical engineering Abutment Dentistry Dental Cements Dental Abutments 02 engineering and technology Crown (dentistry) 03 medical and health sciences 0302 clinical medicine Natural rubber Interquartile range medicine Humans Cementation Cement Dental Implants Crowns business.industry technology industry and agriculture 030206 dentistry Cementation (geology) 020601 biomedical engineering surgical procedures operative Glass Ionomer Cements visual_art visual_art.visual_art_medium Implant Dental Prosthesis Implant-Supported Oral Surgery business |
| Zdroj: | Clinical oral implants researchREFERENCES. 32(5) |
| ISSN: | 1600-0501 |
| Popis: | OBJECTIVE To evaluate the amount of residual cement after cementation of implant crown abutments with rubber dam and retraction cord with copy abutments techniques. MATERIAL AND METHODS Thirty single posterior metal-ceramic implant-supported restorations were delivered to 20 patients. The crowns were fabricated with occlusal openings obturated with composite, and then luted with resin-reinforced glass-ionomer cement on customised standard abutments. The cementation procedure was performed twice in the same specimens using rubber dam (group 1) and retraction cord with copy abutment (group 2). If no cement remnants were seen on periapical radiographs after cleaning, the crown-abutment unit was dismounted. All quadrants of the specimens were photographed to calculate the percentage proportions of residual cement area. Mann-Whitney and Kruskal-Wallis tests were used for statistical analysis. RESULTS In each group, 120 measurements were performed (30 implants, 4 surfaces each). The median percentage ratio with interquartile range (IQR) between the cement remnant area and total specimen area was 1.39% (IQR 0.77%-2.29%) and 0.58% (IQR 0.31%-1.33%) in groups 1 and 2, respectively. Lesser cement remnants were found in group 2 with a statistically significant difference (p |
| Databáze: | OpenAIRE |
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