Compatibility of Nonoriginal Abutments With Implants: Evaluation of Microgap at the Implant-Abutment Interface, With Original and Nonoriginal Abutments
| Autor: | Saravanakumar Mariappan, Chitra Shankar Krishnan, Hariharan Ramasubramanian, Jayakrishnakumar Sampathkumar, Revathi Duraisamy, Azhagarasan Navarasampatti Sivaprakasam |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Surface Properties 0206 medical engineering Group ii chemistry.chemical_element Dental Abutments 02 engineering and technology 03 medical and health sciences 0302 clinical medicine Materials Testing Statistical analysis Acrylic resin Orthodontics Dental Implants Titanium Significant difference Dental Implant-Abutment Design 030206 dentistry 020601 biomedical engineering chemistry Torque visual_art visual_art.visual_art_medium Oral Surgery Implant abutment |
| Zdroj: | Implant dentistry. 28(3) |
| ISSN: | 1538-2982 |
| Popis: | Purpose The purpose of this study was to evaluate the fit of nonoriginal abutments to implants at the implant abutment junction. Materials and methods Twenty titanium implants from a single manufacturer were randomly divided into 2 groups of ten each. Ten titanium premachined original abutments (group I) and ten titanium premachined nonoriginal abutments (from different manufacturer-group II) were connected to the implants with the recommended manufacturer torque level and then embedded into autopolymerizing clear acrylic resin blocks. After overnight curing, these blocks were vertically sectioned using water jet sectioning machine and evaluated under scanning electron microscope following the sequential cleaning procedures. The microgap at the implant-abutment interface for all the samples was measured using pixel counting software and subjected to statistical analysis using nonparametric Mann-Whitney U test. Results The mean microgap at the implant-abutment interface at the external, middle, and internal points was 1.597, 1.399, and 1.831 µm, respectively, for group I and 2.395, 2.488, and 3.339 µm, respectively, for group II samples. Nonparametric Mann-Whitney U test showed statistically significant difference between 2 groups at the midpoint for the nonoriginal abutments compared with the original ones. Conclusion Within the limitations of the study, the mean microgap at the implant-abutment interface at the platform level at the external, middle, and internal points for both original abutments and nonoriginal abutments was found to be within clinically acceptable limits. |
| Databáze: | OpenAIRE |
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