NCT03581565|Completed
Cementation Techniques for Single-tooth Implant Crowns
Effect of Cementation Technique Applied for Single-tooth Implant Crowns on Residual Cement: A Three-arm Parallel-group Randomized Clinical Trial
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Effect of Cementation Technique Applied for Single-tooth Implant Crowns on Residual Cement: A Three-arm Parallel-group Randomized Clinical Trial
Sponsor study identifier
Secondary identifiers
OTHER_GRANT · HacettepeU Scientific Research Projects Coordination Unit
interventional
10
1 country
1
Study Start
October 16, 2017
Actual (reported)Primary Completion
March 19, 2018
Actual (reported)Study Completion
May 25, 2018
Actual (reported)Cement retention has been widely used for implant-supported fixed partial dentures in daily dental practice. The cementation approach indeed offers straightforward clinical application protocol which is basically conceptualized for tooth/teeth supported fixed restorations. However, removal of excess cement around implant restorations presents specific difficulties. More importantly, there are certain biological consequences due to residual cement leftover in peri-implant sulcus. There is no evidence based guidance with regards to cementation techniques applied for implant supported fixed restorations due to limited clinical studies. Therefore the aim of this clinical trial is to compare three different cementation technique with regards to removal of excess cement and other clinical subsidiaries (abutment margin, crown surface and contour) involving indirectly as well.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
May 25, 2018
Actual (reported)Click on a node to explore related trials.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
October 16, 2017
Actual (reported)March 19, 2018
Actual (reported)May 25, 2018
Actual (reported)June 6, 2018
Actual (reported)July 10, 2018
Actual (reported)visual assessment of residual cement on crown-abutment complex
removal of cemented crown-abutment complex to detect excess cement on the mesial, distal, buccal and lingual surfaces of crown and abutment separately scoring: presence or absence
15 minutes
measurement of residual cement area and distribution
digitalization of the removed crown-abutment complexes those scored with cement presence, then using a software, virtual selection of existing cement to calculate the area in millimeter square and to define the direction and the extension in millimeters on the mesial, distal, buccal and lingual surfaces of crown and abutment separately
30 minutes
Loading of a zinc polycarboxylate (with the requirements of ISO 9917) cement to fulfill the crown Cement: Poly-F, DentsplySirona, York, Pennsylvania, United States Mixing Ratio: 1 scoop powder: 2 drops liquid Mixing Time (extraoral): 30 seconds Working Time (extraoral): 45 seconds Application (extraoral): placement of mixture into crown using a heidemann Spatula Setting Time (intraoral): 2-8 minutes
Loading of a zinc polycarboxylate (with the requirements of ISO 9917) to fill the coronal half of the crown Cement: Poly-F, DentsplySirona, York, Pennsylvania, United States Mixing Ratio: 1 scoop powder: 2 drops liquid Mixing Time (extraoral): 30 seconds Working Time (extraoral): 45 seconds Application (extraoral): placement of mixture into crown using a heidemann Spatula Setting Time (intraoral): 2-8 minutes
intraoral cementation of single-tooth implant crowns with three different technique, intraoral removal of cement excess upon setting
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Hacettepe University Faculty of Dentistry Department of Prosthodontics
Ankara, 06100, Turkey (Türkiye)
Kıvanç Akça, Prof.Dr.
Hacettepe University
10 participants (actual enrollment reported by the registry).
First Submitted
June 6, 2018
First Posted
July 10, 2018
Study Start
October 16, 2017
Actual (reported)visual assessment of residual cement around the peri-implant soft tissue
15 minutes
correlation of abutment margin and crown-abutment contour with 'Outcome 2' measures
30 minutes
recognition of residual cement on radiographs
20 minutes
Application of a zinc polycarboxylate (with the requirements of ISO 9917) to the axial walls of internal surface of crown Cement: Poly-F, DentsplySirona, York, Pennsylvania, United States Mixing Ratio: 1 scoop powder: 2 drops liquid Mixing Time (extraoral): 30 seconds Working Time (extraoral): 45 seconds Application (extraoral): application of mixture into crown using a bonding applicator tip Setting Time (intraoral): 2-8 minutes
Contact the study team to confirm eligibility.
Primary Completion
March 19, 2018
Actual (reported)Study Completion
May 25, 2018
Actual (reported)Last Updated
July 10, 2018
Record last verified: 2018-06
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Source: ClinicalTrials.gov.
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